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Power Engineering 4A Questions and
Answers Already Passed
- One cubic metre is equal to: A. 1 cubic decimetre B. 1000000 litres C. 1000 litres D. 100 cubic decimeters E. 1000 cubic centimetres โโC
- One watt is equal to: A. 1 joule B. 1 newton metre C. 1 joule/s D. 1 ampere E. 1 coulomb โโC
3. Which of the following numbers are integers:
E 1, 2 โโD
- A 1, 2,
- B 1, 3,
- C 2, 3,
- D 1, 2, 3,
- Which of the following are prime numbers?
A. always a vector quantity B. a scalar quantity C. measured in a straight line D. always measured in a circular path E. velocity /time โโB
- When a simply supported beam is loaded with a mass of 1 tonne acting at the centre of the beam, the reaction at each end of the beam is: A. 0.4905 kN B. 9.81 kN C. 49.05 kN D. 98.1 kN E. 4.905 kN โโE
- An example of a vector quantity is:
A. speed B. velocity C. time D. magnitude E. distance โโB
- Thermodynamics is that branch of physics which deals with the: A. measurement of heat B. transfer of heat into other forms of energy C. relationship between temperature and the electrical condition in metals D. conversion of energy into heat E. movement of heat through solids โโB
- When the Fahrenheit reading is 312 ยฐF the Celsius reading is: A. 148.6 ยฐC
D. is a chemical change E. all of the above โโB
- Where more than one view is shown in a drawing A. width is common to the front and top views B. height is common to the front and side views C. depth is common to the top and side views D. hidden lines are used E. all of the above โโE
- A power plant log book: A. should record all important events which occur during a shift and be signed by the person in charge of the shift B. should record only start up and shut down dates of equipment C. should not include information which is recorded elsewhere D. should be maintained and signed by the chief engineer only
E. should record all important events which occur during a shift and be signed by the chief engineer and the shift engineer โโA
- Section 7, "Rules for Care of Power Boilers" of the ASME Code Book are: A. rules that are strictly enforced by the ASME B. suggested rules to promote safety in boiler operation C. applicable only to large high pressure boilers D. rules developed to produce best economy of operations E. rules that all boiler operators must follow โโB
- When working inside a boiler the maximum voltage of the lights you must use is: A. 12 volts B. 60 volts C. 110 volts
E. open and shut all valves under no load to save wear on the valves โโD
- A lock-out procedure for a boiler, pressure-vessel, pump or electrical equipment being repaired or serviced is to: A. lock and tag the control device in an inoperative position B. lock only the main disconnect so that repairs can be performed C. lock and tag only equipment that can be remotely started D. tag and lock equipment but leave key in main office so that maintenance can be performed E. tag and lock equipment as approved by the safety committee โโA
- M.S.D.S. means: A. Material Specification Data System B. Material Specification Data Sheet C. Manufacturers Specification Data Sheet D. Manufacturers Safety Data Sheet
E. Material Safety Data Sheet โโE
- Three different extinguishing media used on fires are: A. dry powder, foam, oxygen B. water, dry powder, carbon dioxide C. dry powder, carbon monoxide, water D. foam, water, sulphur dioxide E. sand, water and hydrogen โโB
- Which of the following extinguishers would ordinarily be used to combat a class "C" fire?
- carbon dioxide
- foam
- dry chemical
- water A. 1, 2
B. report the incident to Provincial Environmental Authorities C. report the incident to E.R.C.B D. minimize and control the release E. evacuate the plant โโD
- The most proficient method of dealing with environmental impacts due to wastes is to: A. avoid the generation of hazardous waste B. ensure it conforms with Transport of Dangerous Goods Act C. ensure that disposal of material waste conforms with required legislation D. conduct periodic inspections of the company used to dispose of hazardous waste E. use long term storage โโA
- Metals that are very soft and easily worked are said to be: A. hard
B. elastic C. brittle D. malleable E. tough โโD
- Case hardening of low carbon steel produces: A. a high carbon inner core and low carbon outer surface B. a high carbon inner core and high carbon outer surface C. a low carbon inner core and low carbon outer surface D. a low carbon inner core and high carbon inner surface E. a low carbon inner core and high carbon outer surface โโE
- Relative to babbitt, the greater amount of lead it contains the: A. greater will be the amount of tin B. less load it will support C. shaft can operate at higher speed and light loads
A. 1, 5
B. 2, 3, 4
C. 1, 3
D. 4, 5
E. 1, 2, 3, 4, 5 โโC
- A check valve is a valve that: A. is required on all boilers B. allows flow in two directions C. allows flow at regular intervals D. does not allow any flow at all E. allows flow in one direction only โโE
- When steam is first being introduced into a piping system, it is important that: A. all valves be wide open
B. all drains be closed C. all valves be closed D. all condensate water is drained E. all by-pass valves are closed โโD
- Beading the tube ends on a fire tube boiler:
- is done with a sledgehammer
- makes the tube act as a stay
- reduces oxygen pitting
- prevents overheating and splitting of the tube end A. 1, 3 B. 2, 3 C. 2, 4 D. 1, 4 E. 3, 4 โโC
A. top supported B. bottom-supported C. externally fired D. horizontal return tubular E. oil fired boilers โโB
- The advantage of a multi-pass firetube boiler is: A. larger water space B. stronger construction C. increased heat transfer D. larger gas volume E. high heat content in the flue gases at the stack โโC
- If a boiler has 60 m2 of heating surface, it must have how many safety valves: A. at least two B. at least one
C. only three D. no more than two E. one with enough capacity โโA
- A stop valve is allowed between the safety valve and the boiler drum when: A. the stop valve is locked in the open position B. there is more than one safety valve C. a rupture disc is placed between the stop valve and the safety valve D. no valve is allowed at any time E. the pipe diameter is less than 2" โโD
- The chemical symbol for carbon monoxide is: A. C B. CaCO C. CO D. CO
