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Sheet SNO QUESTIONS A B C D ANS 1 Which of the following is not measure of effectiveness safety program? OSHA incident rate^ Fatal Accident Rate(FAR) Fatality Rate^ HAZOP^ D (^2) How toxicants enters into organism? Ingestion Injection Inhalation All of the above D 3 Lowest value on response vs dose curve is called…. Thresold Limit Value^ Average response^ Highest response^ Relative toxicity^ A 4 Identification, Evaluation and control are the phases of……. Safety Program^ Industrial Hygiene^ Material handling^ None of above^ B (^5) Fire is rapid-------- of ignited fuel. Exothermic oxidation exothermic reduction Endothermic Reduction Endothermic oxidation A 6 ………………..is a rapid increase in volume and release of energy in an extreme manner, usually with the generation of high temperatures and the release of gases Fire Flammability Explosion Toxicity C 7 …………..is the lowest temperature that the vapours of a material will ignite when exposed to an ignition source. Flash point Fire point (^) temperatureAutoignition Inerting B 8 An explosion occurring within a vessel or a building, known as Confined Explosion Unconfined Explosion BLEVE None of above A 9 Which of the following Causes of overpressure….. Ambient heat Valve failures Both 1 & 2 None of above C 10 For material handling which is wrong statement……… Indoor storage facilities for flammable liquids should have ventilation. Flammable liquids should be stored in retaining embankments so they cannot spread uncontrollably. Corrosive substances should not be stored above eye level. Environmental risk assessments should not be available.
D
11 Who is responsible for ensuring the workers are provided with safe working envrionment?
HAZAN HAZOP AICHE OSHA D
12 Hazard evaluation consist of the elements….. Safety Review/Audit/Inspecti on HAZAN HAZOP All of the above D 13 PHA stands for Process Hazard Analysis Public Housing Authority Public Health Association Personal Health Assessment
A
14 Which of the following is not Guide word of HAZOP?
NO LESS MORE NAND D
15 HAZAN study includes Estimate how often an incident will occur. steps can be taken to either eliminate risks or reduce risk to an acceptable level. It is centered around the hazard analysis and functional based safety process All of the above D 16 Process of adding inert gas to combustible mixture to reduce concentration of oxygen below limiting oxygen concentration (LOC) Fire Point Flash point inerting Toxicity C 17 Vessels can be pressure-purged by adding inert gas ……… Under atmospheric pressure Atmospheric pressure^ Above Atmospheric pressure at high temp.^ A 18 The ____________ process determines whether exposure to a chemical can increase the incidence of adverse health effect. Hazard identification Exposure assessment Toxicity assessment Risk characterization A (^19) Hazard is defined as the probability of suffering harm or loss. accident development fire A 20 ……….. occurs when a tank containing a liquid held above its atmospheric pressure boiling point ruptures, resulting in the explosive vaporization of a large fraction of the tank contents. Boiling-Liquid Expanding-Vapor Explosi Vapor Cloud Explosions Missile Damage Blast Damage to People A 21 for……... the reaction front propagates at a speed less than the speed of sound deflagration detonation Confined Explosions Unconfined Explosions A CPS- MCQ Question bank Page 1
Sheet 22 Static electricity is generated when mists or sprays pass through process mists or sprays pass through orifices air pass through pipe water pass through pipe
B
(^23) The MIE depends on the specific chemical or mixture the concentration^ pressure and temperature all of above^ D 24 An explosion resulting from the sudden failure of a vessel containing high-pressure nonreactive gas Deflagration Mechanical explosion Flammability limits Firepoint B 25 The essential elements for ……………... are fuel, an oxidizer, and an ignition source Fire triangle explosion Flammability limits toxicity A (^26) What is toxicity equivalence factor? Ratio of the toxicity of a chemical to that of another structurally related chemical (or index compound) chosen as a reference Ratio of the toxicity of a contaminant to that of another structurally related chemical (or index compound) chosen as a reference Ratio of the toxicity of a chemical to that of another chemical pollutant chosen as a reference Ratio of the toxicity of a chemical to that of source
A
27 OSHA ensures that employees have been provided with _________ Job^ PPE^ Insurance^ Security^ B (^28) ED stands for Effective dose Toxic dose Erectile dysfunction Lethal dose A 29 Eco-toxicology is based on ______ of chemicals. Chemical^ Physical^ Toxicological^ Biological^ C 30 OSHA is part of the ___________ department of labour. US^ UK^ India^ Australia^ A 31 toxicants enter organism through^ Ingestion Injection Dermal absorption all of above D 32 During the ……………...phase, the various types of existing control measures and their effectiveness are also studied. Identification Evaluation Control Hygiene B (^33) requirements are designed to ……The unit-specific technical^ Prevent the release of HW Good housekeeping Analysis Export activities A 34 What are the steps involved in evaluation of toxicity? hazard identification and dose-response evaluation chemical analysis pathway analysis evaluation of long term impact A 35 ___________ establishes the relationship between the contaminant/s of concern and the receptor. Hazard identification Toxicity assessment Risk characterisation (^) assessmentExposure B (^36) characteristics of hazardous waste?Which of the following is not Toxicity Corrosivity Ignitibility Leakage D 37 Results from long-term exposure to lower doses of a chemical is known as ________ Acute toxicity Chronic toxicity Moderate toxicity None B 38 Which of the following chemical is responsible for acute lung disease from Bhopal gas tragedy? Methylisocyanate Methylisocyanade Methyl Methylcyanate A 39 Heavy metals like Arsenic, Cadmium and Cyanide effects _________ Immune system Nervous system Skin Respiratory system B 40 ______ represents a contact between a chemical agent and an object. Dose Response Exposure Concentration C 41 Under the OSH Act, employers are responsible for providing a
Safe workplace Land Insurance Estimation A 42 OSHA was created to _________ Data analysis To reduce hazards Ecological development EIA analysis B 43 How is sensitivity analysed in risk estimation? By critical assumptions Chemical assessment Character assessment Personal measurement
A
44 An incident can be called hazardous only when? Stressor has the potential to cause harm to humans and ecological systems Poses threat to surrounding Monitoring is failed Outburst of chemicals A Page 2
Sheet 68 Why does site history have to be considered for hazard identification? To estimate the risk To calculate carcinogenic exposure To know the probable source and causes of contamination on site For determination of remedial actions
C
69 Hazard identification mainly focus on
Chemical source and concentration Chemical exposure^ Chemical analysis^ Chemical pathway^ A 70 Estimation of short-term and long term exposure are usually in terms of
Doses by exposure rate Susceptibility^ Population^ Genetics^ A 71 Which of the following risk assessment tool is used for the determination of spatial distribution of contaminants at the site? Hazard identification Exposure assessment Toxicity assessment Risk characterisation B 72 What is the final stage of risk assessment? Hazard identification^ Risk characterisation^ Exposure assessment^ Toxicity assessment^ B 73 The toxicological end point for dose- response relationship should be
Definitive Vague Irrational Less A 74 For existing chemicals, we should always consider ________ exposure assessment based on modelling, to derive an environmental concentration. Better case Reasonable worst case Moderate case High case B 75 What is the main goal of risk management? Pathway analysis Estimation Transportation Calculate probability of adverse effect on individual and population
D
76 Elements of safe chemical storage program consist of Inventory of Chemicals Labeling of Chemicals Segregating Incompatibles All of the above D 77 The FAR reports the number of fatalities based on 1000 employees working their entire lifetime. The employees are assumed to work a total of 50 years. FAR Fatality Rate OSHA incident rate None of above A (^78) The last step of accident process Initiation Propagation Termination damage C 79 LD50 in a toxicity test stands for
a dose that will kill 50% of an exposed population a dose that would not affect or harm 50% of an exposed population a dose that will kill 25% of an exposed population a dose that would not kill 25% of an exposed population
A
(^80) which of the following incorrect? The relief valve is primarily for liquid service. The safety valve is for gas service. The safety relief valve is used for liquid and gas service. None of above D 81 The pressure difference between the relief set pressure and the relief reseating pressure. It is expressed as a percentage of the set pressure. Backpressure Blowdown (^) accumulated pressureMaximum allowable Relief system B 82 What is the most common approach used to asses skin exposure to a contaminant? a) biological monitoring is commonly used to assess total body burden or chemical contaminants b) critical flux is the does resulting from inhalation exposure combined with dermal exposure c) using pad or dosimeters to determine the amount of contaminant deposited on the skin d) there is no recognized approach to assess skin exposure to a contaminant
C
83 The father of occupational medicine who said a doctor should always ask a patient of what trade are you is said to be a) Dr. Alice Hamilton b) Paracelsus c) Dr. Ramazzini d) Dr. Percival Pott C 84 Who had a large influence on American OHS regulation in the early part of the 20th century, and who also wrote exploring the dangerous trades a) dr. Alice Hamilton b) Paracelsus c) Dr. Ramazzoni d) Dr. Percival Pott A 85 In what year did the US federal government first pass a workers compensation act for some civil employees a) 1900 b) 1905 c) 1908 d) 1910 C Page 4
Sheet 86 In what year was the first American state workers compensation act passed a) 1910 b) 1911 c)1913 d)1915 B 87 this American federal act was the first know legal adoption of standards for allowable concentrations of chemicals in workplace air a) OHSA b) mining Act c) Walsh-healey Public Contract Act^ d) Roosevelt New Deal Act C 88 The most well known OEls are established by a) NIOSH^ b) OSHA^ C) ANSI^ d) ACGIH^ D (^89) The ACGIH TLVs a) protect all workers b) are developed by consensus c) are science based d) are a legal standard for what is safe
C
90 If three of the following are said to be exposure limits for chemical X, which one is likely to be the ceiling limit a) 1000ppm b) 100ppm c) 50ppm d)10ppm A 91 The definition of the ACGIH TLV_STELs refer to certain health effects that must be avoided. these do not include a) irritation b) chronic or irreversible tissue damage c) serious narcosis d) carcinogenicity D 92 Which organization is widely recognized around the world as setting exposure limits for ionizing radiation a) ACGIH b) National Intitute for Occupational Safety and health c) American National standards Intitute d) International commission on Radiological Protection (ICRP)
D
93 Which is not an agent ACGIH sets standards for a) chemicals b) ionizing radiation c) non-ionizing radiation d) thermal stress B 94 Which is not one of the main forms in which chemicals are present in the workplace a) mists b) fibers c) vapours d) gasses B 95 Chemical scause two main kinds of health effects^ a) dermatoses and cancer b) external and internal c) local effects and poisoning^ d) systematic and tissue C 96 Who said it is the dose only that makes a thing not a poison a) Aristotle b) Paracelsus c) Florence Nightingale d) Medici B 97 a dose response curve illustrating acute toxicity usually has^ a) a s-shaped or sigmoidal curve about a 45 degree angle^ b) a straight line at c) and elliptical curve d) a bell-shaped curve A 98 If the dose response curves of three chemicals are shown on the same graph, the one which intersects the x- axis (dose) at the lowest dose is a) innocuous b) lethal c) the most poisonous d) without a threshold level C 99 the most common type of LD 50 test involves a) chimpanzees b) poison gas delivered to a plexiglass cage c) an oral dose d) skin application C 100 For any given chemical, a high LD 50 value generally means a) carcinogenicity b) low toxicity c) high toxicity d) nothing - much more needs to be known
B
101 Which statement about ingestion as a route of entry into the workers body by workplace chemicals is incorrect a) ingestion is usually a significant way in which chemicals gain entry into the body b) food contamination with workplace chemicals can be a way chemicals can enter the body by ingestion c) hand washing is a method of entry of chemicals by ingestion can be reduced d) eating areas should be located in a part of the workplace removed from chemical contaimination
A
102 the two main categories of skin irritation caused by chemicals are a) inflammation and corrosion b) dermatitis and siderosis c) cirrhosis and allergenic response d) melanoma and skin cracking
A
103 An example of a workplace chemical that can damage the kidneys specifically is a) lead salts b) silica c) propanol d) vinyl chloride A 104 Which is not a chemical known to specifically damage the kidney a) vinyl chloride b) chlorinated hydrocarbons, such as carbon tetrachloride c) lead salts d) mercury salts A 105 Which is not one of the four main types of skin exposures a) mechanical b) radiological c) physical d) chemical B 106 What violations are most commonly cited by OSHA? A. Hazard communications B. Scaffolding C. Fall protection D. Respiratory protection
C
107 What is the leading cause of death on construction sites? A. Struck by object^ B. Falls^ C. Caught-in or - between D. Electrocutions^ B 108 Which of the following is not a chemical-related health hazard? A. Carcinogenicity B. Reactivity C. Corrosivity D. Toxicity B Page 5
Sheet 131 ……….. occurs when a tank containing a liquid held above its atmospheric pressure boiling point ruptures, resulting in the explosive vaporization of a large fraction of the tank contents. Boiling-Liquid Expanding-Vapor Explosi Vapor Cloud Explosions Missile Damage Blast Damage to People A 132 for……... the reaction front propagates at a speed less than the speed of sound deflagration detonation Confined Explosions Unconfined Explosions A (^133) The MIE depends on the specific chemical or mixture the concentration^ pressure and temperature all of above^ D 134 An explosion resulting from the sudden failure of a vessel containing high-pressure nonreactive gas Deflagration Mechanical explosion Flammability limits Firepoint B 135 The essential elements for ……………... are fuel, an oxidizer, and an ignition source Fire triangle explosion Flammability limits toxicity A 136 What is toxicity equivalence factor? Ratio of the toxicity of a chemical to that of another structurally related chemical (or index compound) chosen as a reference Ratio of the toxicity of a contaminant to that of another structurally related chemical (or index compound) chosen as a reference Ratio of the toxicity of a chemical to that of another chemical pollutant chosen as a reference Ratio of the toxicity of a chemical to that of source
A
137 OSHA ensures that employees have been provided with _________ Job PPE Insurance Security B 138 ED stands for Effective dose Toxic dose Erectile dysfunction Lethal dose A 139 Eco-toxicology is based on ______ of chemicals. Chemical Physical Toxicological Biological C 140 OSHA is part of the ___________ department of labour. US UK India Australia A 141 toxicants enter organism through^ Ingestion Injection Dermal absorption all of above D 142 During the ……………...phase, the various types of existing control measures and their effectiveness are also studied. Identification Evaluation Control Hygiene B (^143) requirements are designed to ……The unit-specific technical^ Prevent the release of HW Good housekeeping Analysis Export activities A 144 What are the steps involved in evaluation of toxicity? hazard identification and dose-response evaluation chemical analysis pathway analysis evaluation of long term impact A 145 ___________ establishes the relationship between the contaminant/s of concern and the receptor. Hazard identification Toxicity assessment Risk characterisation Exposure assessment
B
146 Which of the following is not characteristics of hazardous waste? Toxicity Corrosivity Ignitibility Leakage D 147 Results from long-term exposure to lower doses of a chemical is known as ________ Acute toxicity Chronic toxicity Moderate toxicity None B 148 Which of the following chemical is responsible for acute lung disease from Bhopal gas tragedy? Methylisocyanate Methylisocyanade Methyl Methylcyanate A 149 Heavy metals like Arsenic, Cadmium and Cyanide effects _________ Immune system^ Nervous system^ Skin^ Respiratory system^ B 150 ______ represents a contact between a chemical agent and an object. Dose Response Exposure Concentration C 151 Under the OSH Act, employers are responsible for providing a
Safe workplace Land Insurance Estimation A (^152) OSHA was created to _________ Data analysis To reduce hazards Ecological development EIA analysis B Page 7
153 How is sensitivity analysed in risk Sheet estimation? By critical assumptions Chemical assessment^ Character assessment^ Personal measurement A 154 An incident can be called hazardous only when? Stressor has the potential to cause harm to humans and ecological systems Poses threat to surrounding Monitoring is failed^ Outburst of chemicals^ A 155 What is the main purpose of hazard identification? To minimise the effect of a consequence For better risk management To characterize adverse effect of toxins To reduce probability of occurrence C 156 Doses are expressed on a _________ basis. Accuracy^ Precision^ Body-weight^ End point^ C 157 Major application of dose-response curve is to obtain ______ Toxin^ Carcinogens^ Mutagens^ Threshold^ D 158 Which of the following valve is known as a safety valve? Scour valve^ Pressure relief valve^ Reflux valve^ Altitude valve^ B (^159) When did Seveso accident occur? 1974 1975 1976 1977 C 160 A waste to be called toxic, acute oral LD50 concentration should be _______ mg/kg.
2200 2300 2400 2500 D
(^161) What is chronic toxicity? Effects due to long term exposure Effects due to short term exposure Effects due to exposure Benefits due to exposure A 162 The gauge pressure during normal service, usually 10% below the MAWP known as Operating pressure Set pressure Overpressure Accumulation A 163 Pressure relief systems are required for which of the following reasons to protect personnel from the dangers of overpressurizing equipment to minimize chemical losses during pressure upsets, both 1 & 2 None C 164 ……….. occurs when a tank containing a liquid held above its atmospheric pressure boiling point ruptures, resulting in the explosive vaporization of a large fraction of the tank contents. Boiling-Liquid Expanding-Vapor Explosi Vapor Cloud Explosions Missile Damage Blast Damage to People A 165 for……... the reaction front propagates at a speed less than the speed of sound deflagration detonation Confined Explosions Unconfined Explosions A 166 The MIE depends on the specific chemical or mixture the concentration pressure and temperature all of above D 167 An explosion resulting from the sudden failure of a vessel containing high-pressure nonreactive gas Deflagration Mechanical explosion Flammability limits Firepoint B 168 The essential elements for ……………... are fuel, an oxidizer, and an ignition source Fire triangle explosion Flammability limits toxicity A 169 What is toxicity equivalence factor? Ratio of the toxicity of a chemical to that of another structurally related chemical (or index compound) chosen as a reference Ratio of the toxicity of a contaminant to that of another structurally related chemical (or index compound) chosen as a reference Ratio of the toxicity of a chemical to that of another chemical pollutant chosen as a reference Ratio of the toxicity of a chemical to that of source
A
170 OSHA ensures that employees have been provided with _________ Job^ PPE^ Insurance^ Security^ B (^171) ED stands for Effective dose Toxic dose Erectile dysfunction Lethal dose A 172 Eco-toxicology is based on ______ of chemicals. Chemical^ Physical^ Toxicological^ Biological^ C 173 OSHA is part of the ___________ department of labour. US^ UK^ India^ Australia^ A 174 toxicants enter organism through^ Ingestion Injection Dermal absorption all of above D 175 During the ……………...phase, the various types of existing control measures and their effectiveness are also studied. Identification Evaluation Control Hygiene B Page 8
Sheet 199 Which of the following risk assessment tool is used for the determination of spatial distribution of contaminants at the site? Hazard identification Exposure assessment Toxicity assessment Risk characterisation B 200 What is the final stage of risk assessment? Hazard identification^ Risk characterisation^ Exposure assessment^ Toxicity assessment^ B 201 The toxicological end point for dose- response relationship should be
Definitive Vague Irrational Less A 202 For existing chemicals, we should always consider ________ exposure assessment based on modelling, to derive an environmental concentration. Better case Reasonable worst case Moderate case High case B 203 What is the main goal of risk management? Pathway analysis Estimation Transportation Calculate probability of adverse effect on individual and population
D
204 Elements of safe chemical storage program consist of Inventory of Chemicals Labeling of Chemicals Segregating Incompatibles All of the above D 205 The FAR reports the number of fatalities based on 1000 employees working their entire lifetime. The employees are assumed to work a total of 50 years. FAR Fatality Rate OSHA incident rate None of above A 206 LD50 in a toxicity test stands for
a dose that will kill 50% of an exposed population a dose that would not affect or harm 50% of an exposed population a dose that will kill 25% of an exposed population a dose that would not kill 25% of an exposed population
A
(^207) which of the following incorrect? The relief valve is primarily for liquid service. The safety valve is for gas service. The safety relief valve is used for liquid and gas service. None of above D 208 The pressure difference between the relief set pressure and the relief reseating pressure. It is expressed as a percentage of the set pressure. Backpressure Blowdown (^) accumulated pressureMaximum allowable Relief system B Page 10
qno question optn1 optn2 optn3 optn4 nswe
OSHA incident Fatal Fatality 4
1 Which of the following is not measure of effectiveness safety program? rate Accident Rate HAZOP
All of the 4
2 How toxicants enters into organism? Ingestion Injection Inhalation above
Thresold Limit Average Highest Relative 1
3 Lowest value on response vs dose curve is called…. Value response response toxicity
Safety Industrial Material None of 2
4 Identification, Evaluation and control are the phases of……. Program Hygiene handling above
Exothermic exothermic Endother Endothermic 1
5 Fire is rapid-------- of ignited fuel. oxidation reduction mic oxidation
………………..is a rapid increase in volume and release of energy in an extreme 3
6 manner, usually with the generation of high temperatures and the release of Fire Flammability Explosion Toxicity
…………..is the lowest temperature that the vapours of a material will ignite when Autoigniti 2
7 exposed to an ignition source. Flash point Fire point on Inerting
An explosion occurring within a vessel or a building, known as Confined Unconfined None of 1
8 Explosion Explosion BLEVE above
9 Which of the following Causes of overpressure….. Ambient heat Valve Both 1 & 2 None of 3
Flammable Corrosive Environment 4
liquids substance al risk
Indoor storage should be s should assessments
facilities for stored in not be should not
flammable retaining stored be available.
liquids should embankmen above eye
have ts so they level.
10 For material handling which is wrong statement……… ventilation. cannot
11 Who is responsible for ensuring the workers are provided with safe working HAZAN HAZOP AICHE OSHA 4
Safety 4
Review/Audit/ All of the
12 Hazard evaluation consist of the elements….. Inspection HAZAN HAZOP above
Process Public Public Personal 1
Hazard Housing Health Health
13 PHA stands for Analysis Authority Associatio Assessment
Ratio of the Ratio of the Ratio of
toxicity of a toxicity of a the
chemical to contaminant toxicity of
that of to that of a chemical
another another to that of
structurally structurally another
related related chemical Ratio of the
chemical (or chemical (or pollutant toxicity of a
index index chosen as chemical to
compound) compound) a that of
27 What is toxicity equivalence factor? chosen as a chosen as a reference source 1
28 OSHA ensures that employees have been provided with _________ Job PPE Insurance Security 2
Erectile
29 ED stands for Effective dose Toxic dose dysfunctio Lethal dose 1
30 Eco-toxicology is based on ______ of chemicals. Chemical Physical Toxicologi Biological 3
31 Exposure effect is more in adults than that of children. True False 2
32 OSHA is part of the ___________ department of labour. US UK India Australia 1
toxicants enter organism through Dermal
33 Ingestion Injection absorptio all of above 4
During the ……………...phase, the various types of existing control measures and
34 their effectiveness are also studied. Identification Evaluation Control Hygiene 2
Prevent the Good Export
35 The unit-specific technical requirements are designed to …… release of HW housekeepin Analysis activities 1
hazard evaluation
identification chemical pathway of long term
36 What are the steps involved in evaluation of toxicity? and dose- analysis analysis impact 1
Risk
___________ establishes the relationship between the contaminant/s of concern Hazard Toxicity characteri Exposure
37 and the receptor. identification assessment sation assessment 2
38 Which of the following is not characteristics of hazardous waste? Toxicity Corrosivity Ignitibility Leakage 4
Results from long-term exposure to lower doses of a chemical is known as Chronic Moderate
39 ________ Acute toxicity toxicity toxicity None 2
Which of the following chemical is responsible for acute lung disease from Methylisocyan Methylisocy Methylcyana
40 Bhopal gas tragedy? ate anade Methyl te 1
Immune Nervous Respiratory
41 Heavy metals like Arsenic, Cadmium and Cyanide effects _________ system system Skin system 2
42 ______ represents a contact between a chemical agent and an object. Dose Response Exposure Concentratio 3
43 Under the OSH Act, employers are responsible for providing a __________ Safe Land Insurance Estimation 1
To reduce Ecological
44 OSHA was created to _________ Data analysis hazards developm EIA analysis 2
By critical Chemical Character Personal
45 How is sensitivity analysed in risk estimation? assumptions assessment assessmen measureme 1
Stressor has
the potential Poses
to cause harm threat to Monitorin Outburst of
46 An incident can be called hazardous only when? to humans and surrounding g is failed chemicals 1
To minimise For better To To reduce
the effect of a risk characteri probability
47 What is the main purpose of hazard identification? consequence managemen ze adverse of 3
48 Doses are expressed on a _________ basis. Accuracy Precision Body- End point 3
49 Major application of dose-response curve is to obtain ______ Toxin Carcinogens Mutagens Threshold 4
Pressure Reflux Altitude
50 Which of the following valve is known as a safety valve? Scour valve relief valve valve valve 2
51 When did Seveso accident occur? 1974 1975 1976 1977 3
52 A waste to be called toxic, acute oral LD50 concentration should be _______ 2200 2300 2400 2500 4
Effects due to Effects due Effects
long term to short due to Benefits due
53 What is chronic toxicity? exposure term exposure to exposure 1
54 The gauge pressure during normal service, usually 10% below the MAWP known Operating Set pressure Overpress Accumulatio 1
to protect to minimize
personnel chemical
from the losses
55 Pressure relief systems are required for which of the following reasons dangers of during both 1 & 2 None 3
Prevent the Good Export
70 The unit-specific technical requirements are designed to …….. release of HW housekeepin Analysis activities 1
OSHA incident Fatal Fatality 4
71 Which of the following is not measure of effectiveness safety program? rate Accident Rate HAZOP
All of the 4
72 How toxicants enters into organism? Ingestion Injection Inhalation above
Thresold Limit Average Highest Relative 1
73 Lowest value on response vs dose curve is called…. Value response response toxicity
Safety Industrial Material None of 2
74 Identification, Evaluation and control are the phases of……. Program Hygiene handling above
Exothermic exothermic Endother Endothermic 1
75 Fire is rapid-------- of ignited fuel. oxidation reduction mic oxidation
………………..is a rapid increase in volume and release of energy in an extreme 3
76 manner, usually with the generation of high temperatures and the release of Fire Flammability Explosion Toxicity
…………..is the lowest temperature that the vapours of a material will ignite when Autoigniti 2
77 exposed to an ignition source. Flash point Fire point on Inerting
An explosion occurring within a vessel or a building, known as Confined Unconfined None of 1
78 Explosion Explosion BLEVE above
79 Which of the following Causes of overpressure….. Ambient heat Valve Both 1 & 2 None of 3
Flammable Corrosive Environment 4
liquids substance al risk
Indoor storage should be s should assessments
facilities for stored in not be should not
flammable retaining stored be available.
liquids should embankmen above eye
have ts so they level.
80 For material handling which is wrong statement……… ventilation. cannot
81 Who is responsible for ensuring the workers are provided with safe working HAZAN HAZOP AICHE OSHA 4
Safety 4
Review/Audit/ All of the
82 Hazard evaluation consist of the elements….. Inspection HAZAN HAZOP above
Process Public Public Personal 1
Hazard Housing Health Health
83 PHA stands for Analysis Authority Associatio Assessment
The reliability analysis in process industry is done by which of the following?
Which of the following is not Guide word of HAZOP?
HAZAN study includes
Process of adding inert gas to combustible mixture
to reduce concentration of oxygen below limiting
oxygen concentration (LOC) Vessels
can be pressure-purged by
adding inert gas ………
The ____________ process determines whether exposure to a chemical can
increase the incidence of adverse health effect.
Hazard is defined as the probability of suffering harm or loss.
What is acute toxicity?
Why does site history have to be considered for hazard identification?
Hazard identification mainly focus on _____
Estimation of short-term and long term exposure are usually in terms of
________
Fault tree Diaster Event tree 1
analysis managemen analysis
NO LESS MORE NAND 4
steps can be It is 4
taken to centered
either around
Estimate how eliminate the hazard
often an risks or analysis
incident will reduce risk and All of the
occur. to an functional above
Fire Point Flash point inerting Toxicity
Under Above 1
atmospheric Atmospheric Atmosphe at high
pressure pressure ric temp.
Toxicity Risk 1
Hazard Exposure assessmen characterizat
identification assessment t ion
True False 2
Effects due to Effects due Effects
long term to short due to Benefits due
exposure term exposure to exposure 2
To know
the For
probable determinatio
To calculate source n of
To estimate carcinogenic and remedial
the risk exposure causes of actions 3
Chemical Chemical Chemical Chemical
source and exposure analysis pathway 1
Doses by
exposure rate Susceptibilit Populatio Genetics 1
r
Question Which of the following organizations coordinates the collection of chemical
inventories for the Process Industries
A EH&S
B OSHA
C ISO
D PCRA
ANS A
Question Most of common hazardous classes include
A Corrosive acids
B Oxidizer
C Cryogens
D All of the above
ANS D
Question Each chemical family is to be separated by
A Brick wall
B Plastic wall
C Non-combustible partition
D Metal wall
ANS C
Question Which of the following should not be stored near organic acids
A Cryogens
B Oxidizing mineral acids
C Compressed gases
D Pyrophorics
ANS B
Question Which of the following to be referred during storage of specific chemicals
A Material Safety Data Sheet
B Steam Table
C Chemical and Physical Properties
D Chemical Storage Guide
ANS D
Question Acetic acid is both –
A Corrosive acid and combustible liquid
B Corrosive base and combustible liquid
C Cryogen and combustible gas
D Oxidizer and combustible liquid
ANS A
Chemical Process Safety, MCQs, Dr. S. A. Ghodke, DYPIEMR, Akurdi Page 1
Question Flammable and combustible liquids are to stored in
A Bins
B Flammable storage cabinets
C Barrels
D Cans
ANS B
Question Inerting is the process of adding an inert gas to a combustible mixture to reduce
the
A concentration of oxygen below the _____________
B Oxygen concentration
C Least Oxygen Concentration
D Limiting Oxygen Concentration
ANS C
Question Flammable materials are charged only after the _______
A Cleaning
B Washing
C Oxidizing
D Inerting
ANS D
Question The _____________ purging process adds purge gas into a vessel at one
opening and withdraws the mixed gas from the vessel to the atmosphere (or
scrubber) from
A Sweep-through
B Vacuum
C Pressure
D Siphon
ANS A
Question For industrial operations where flammable vapors may be present, any charge
accumulation exceeding 0.1 mJ is considered dangerous.
A 1 mJ
B 10 mJ
C 0.1 mJ
D 20 mJ
ANS C
Chemical Process Safety, MCQs, Dr. S. A. Ghodke, DYPIEMR, Akurdi Page 2
