Download 100 Elevator Final Exam | 100% Correct Answers | Verified | Latest 2025 Version and more Exams Workplace Safety in PDF only on Docsity!
100 Elevator Final Exam | 100% Correct
Answers | Verified | Latest 2025 Version
Which of the following is a term used to describe a body harness used in conjunction with a shock absorbing lanyard? - ✔✔Personal fall arrest system A mechanic is working on a construction job, and finds the carpenter using a powder activated tool to anchor wall track. Of the following, which precaution should the mechanic take? - ✔✔Wear hearing protection Which is the best way to communicate with your coworkers while you are in the machine room and they are working in the pit? - ✔✔Two-way radio A mechanic hurts their back while lifting a heavy box. A doctor diagnoses a "strain". What type of Injury did they sustain? - ✔✔Muscle stretched beyond limits You are about to step to a car top. After activating the top of car stop switch and the inspection switch, what is the next step to verify that they work? - ✔✔Close the hoist way doors and set up a hall call What safety device might you encounter in a hydraulic elevator pit? - ✔✔Plunger gripper What is the most serious consequence of incorrect lifting? - ✔✔Spinal injury What is called the "silent killer" - ✔✔The counter weight A mechanic needs to ride on the car top, but a top-of car operating device is not available. What should the mechanic do? - ✔✔Establish communication with a qualified person in the car You are about to perform routine maintenance on an elevator. After applying a lock and a tag, what step should you take? - ✔✔Verify no power with appropriate test equipment
When does ASME A17.1 require a pit ladder to be installed? - ✔✔When pit depth exceeds 35" A mechanic is taking a trouble call in a dumbwaiter, and realizes he must stand on the car top, what should the dumbwaiter be equipped with? - ✔✔Car safeties When working around electricity, which of the following safety precautions should be followed? - ✔✔Remove jewelry and metal frames glasses When are elevator constructors permitted to ride inside a 400lb. Capacity dumbwaiter - ✔✔They are not permitted to ride inside any dumbwaiter Who is ultimately responsible for ensuring adequate lighting at a work site? - ✔✔You Your mechanic asks you to perform a job site inspection and you find a serious OSHA violation. Who would you notify first? - ✔✔Your mechanic What are the two most common causes of accidents to members of the general public on elevators? - ✔✔Trips and falls, and being struck by the doors Before shortening a governor rope, what safety steps should be taken? - ✔✔LOTO and support tension sheave You aren't sure if a particular hoistway is considered a permit-required confined space. Where can you find more information? - ✔✔OSHA 29 CFR 1926 code You arrive at the machine room to replace a thrust bearing and find the lights are not working. What should you do? - ✔✔Do not start work until the lighting is restored After locking out and tagging out the electrical system, what safety step must be taken before entering an escalator truss? - ✔✔Install a mechanical lock
When would a mechanic be required to replace an escalator comb or comb plate? - ✔✔When teeth are broken Along with spring buffers, limit switches, and cylinder head packing, what else would be found in a conventional hydraulic elevator pit? - ✔✔Drip collection pan or oil return system When lifting heavy objects, what is the best lifting technique to use? - ✔✔Back straight, legs bent When performing any work in a traction elevator pit, which hazard is known as the silent killer - ✔✔Counterweight Which conveyance system is described as one in which a "car" or "cab" is moved up or down a hoistway by suspension means? - ✔✔Traction elevator What must elevator constructors do before using chemical solutions or cleaning fluids? - ✔✔Read SDS You are asked to install additional lighting in the hoistway. What type of extension cord should you use? - ✔✔Three-wire In which type of conveyance system is the energy applied by means of a liquid under pressure? - ✔✔Hydraulic elevator Refer to the figure. An apprentice is setting up a ladder to access a landing 12 feet above his level. What is dimension B? - ✔✔3 feet Prior to using the elevator car sling as a running platform, what must be operational and tested? - ✔✔Governor and safeties Which entity requires all employees be given information and training on the long and short term health effects of the chemicals they work with? - ✔✔OSHA
What type of fire extinguisher is required in the machine room? - ✔✔ABC When moving heavy parts or machinery, which if the following is most important? - ✔✔Establishing good communication with coworkers What size must a dumbwaiter cab enclosure be to transport people? - ✔✔Dumbwaiter s may only transport materials, not people While working on a moving walk, where are barriers required? - ✔✔At the points embarkation and disembarkation At which point on the lifeline should your lanyard be attached? - ✔✔Above your shoulder A construction crew arrives to work on Monday morning and finds the overhead machine room floor is being poured. What precautions shoot be taken? - ✔✔Avoid working in the hoistway What are 2 types of mechanical drawings used in elevator installations? - ✔✔Layout drawing, detail drawing You are installing a V-belt drive pulley on a 40 horse motor for a hydraulic pump unit. What type of acre is needed to lock down the pulley to motor shaft? - ✔✔Hexagonal socket with cup head screws You must order enough wire to complete installation of a duplex. Where would you find the information that would determine how much wire is needed? - ✔✔Electrical layout In the metric system, how is the measurement of volume identified? - ✔✔Liter Refer to print 1. Which view shows the pit depth? - ✔✔A. Elevation view
Where would an elevator constructor find information about the locations of entrances and hall fixtures?
- ✔✔Abstract A construction team receives a job folder. What does it contain? - ✔✔Wiring diagrams, final layout, and abstract For purpose of dimensioning, what type of lines are used on installation drawings? - ✔✔Extension lines On installation drawings, which dotted line represents a part in motion or a part in an alternative position? - ✔✔Phantom line Which type of drawing will show a view of a part as if it were cut? - ✔✔Section drawing Mounting specifications for a governor call for plain lockwashers. Which type is required? - ✔✔Cut washer Where is the "drop of governor to car" measurement taken from? - ✔✔Centerline of main rails What is the front or side view drawing of a hoistway called? - ✔✔Elevation view You are installing a bearing on a fearless machine with a class #7 fit. Which two items are necessary for this to e adequate? - ✔✔Dry ice and bearing heater Which document shows all major parts of an installation - ✔✔Final layout drawing Door rollers can be held in place with through bolts. What other means of attachment can accomplish this? - ✔✔Snap rings Elevator constructors should only use which type of drawings? - ✔✔Final and approved
When installing an escalator, what is the most common type of measurement system used? - ✔✔Metric On the plan drawing, the main guide rails are shown in relation to the location of what? - ✔✔Column line What is the acceptable tolerance (in inches) for the installation of guide rails on a job where the layout drawing does not specify a maximum or minimum dimension? - ✔✔Plus or minus 1/64" What needs to be done prior to surveying the hoistway? - ✔✔Install plumb line With regard to prints, what is another term for arias view? - ✔✔Plan view What is the term for viewing an object straight on from many sides, with each side being at right angles to its adjacent side? - ✔✔Orthographic projection What dangerous gas is given off by a running gasoline engine? - ✔✔Carbon monoxide Why must you LOTO the main disconnect witch before checking the oil reservoir? - ✔✔So the pump will not start What do you need to be certain of before getting on top of a dumbwaiter - ✔✔That it can support your weight and it has safeties What makes a hydraulic elevator pit dangerous? - ✔✔The car can come down without power What is the function of a ground fault circuit interrupter? - ✔✔Detect an imbalance in current between the hot and neutral wires What are the main hazards in the machine room of a heated traction elevator? - ✔✔Electrical and mechanical hazards
What is the name of the document that lists the hazards of substance? - ✔✔Safety data sheet Who is responsible for seeing that barricades are kept in place? - ✔✔Everyone on the job What is a "walk-in" pit? - ✔✔A pit with an access door at floor level of the pit What is the maximum capacity of a dumbwaiter? - ✔✔500lbs What supports a hydraulic elevator? - ✔✔The column of oil inside the jack What amount of force, in the direction of the hoistway, must the approved barricade be able to withstand? - ✔✔200lbs What is the required height for OSHA approved barricade? - ✔✔42" What three factors determine the severity of injury from contact with electricity? - ✔✔The route through the body, current, and exposure time Ties must be capable of which of the following - ✔✔Resisting both tension and compressive forces If a scaffold grade plank is used for a sill - ✔✔It must never be used as a component of a scaffold platform When tying a scaffold to another structure, what must be determined? - ✔✔The structure is stable Screwjacks are used for which of the following? - ✔✔To level the scaffold What is the minimum distance a 10 foot scaffold plank should extend over its supports of it's not cleared or otherwise restrained from movement? - ✔✔6 inches
You are erecting a scaffold with a 5' x 7' base using a 4:1 ratio. What is the maximum allowable height of the first intermediate tie from the ground? - ✔✔46' Scaffolding cross braces can be used as a mid rail in a guard rail system. - ✔✔True What is the maximum allowable platform deflection between supports? - ✔✔1/60 of the span when loaded According to the federal OSHA safety standard what is the accepted height to base width ratio (including outrigger supports, if used) after which the scaffold needs to be restrained from tipping by buying, tying or bracing? - ✔✔4: What are scaffolds tied to other structures? - ✔✔All answer choices are correct You are working from a scaffold without a guardrail system. At what height is fall protection required? - ✔✔10ft What is the purpose of a cross brace? - ✔✔To provide stability and strength A scaffold is required to be able to support its own weight and atleast times the maximum intended loan applied to transmitted to it. - ✔✔ 4 Before assembling scaffolding, the components should be inspected for - ✔✔All answer choices are correct You are erecting a scaffold with a 5' x7' base using a 4:1 ratio. What is the maximum height of the first tie? - ✔✔20' You are using 10 in. wide, 10ft. Long planks rated at 50psf. To build a scaffold. Use your text to find the allowable load rating for the plank. - ✔✔5,000lbs
When normal voice communication cannot be used what is required? - ✔✔ 2 - way communication devices The secondary brake on winding drum must be manually reset once it trips - ✔✔True The anchor point for a lifeline must be capable of supporting for each safety like attached to it - ✔✔ 5000 pounds What statement best describes a layout drawing? - ✔✔Overall view showing how large pieces and assemblies are placed in a building Which of the following best describes the final layout drawing? - ✔✔A mechanical drawing showing plan and elevation views of the elevator installation Which document would provide information on the number and color of doors for an installation? - ✔✔Job abstract What is the purpose of the elevation view found in the final layouts? - ✔✔To show vertical locations and dimensions of elevator components How many possible views are available from drawings using orthographic projections? - ✔✔Six What are the two major categories of construction drawings used in the elevator trade? - ✔✔Mechanical and electrical What is he scale of a drawing when marked 1'=1" - ✔✔1/ What type of materials are typically found in the job folder? - ✔✔Wiring diagrams, mechanical layouts, detail drawings, and abstracts
When looking at a plan view drawing, what direction are you viewing the drawing from? - ✔✔Looking down from above Which of the following would be drawn as a detail drawing? - ✔✔Motor control real When a roller bearing needs to be pressed onto a shaft, what type of allowance does the shaft have? - ✔✔Negative allowance Which class of screw thread has the greatest number of threads per inch for a given size? - ✔✔Unified national fine What is done with pipe threads to ensure a good seal? - ✔✔The threads are tapered If an escalator was delivered to the construction site weighing 5,700 kilograms, what is the correct US customary weight? - ✔✔12,540 lbs How would a class 1 fit for a bot be described? - ✔✔Loose What type of screw would be used to hold a pulley on a shaft? - ✔✔Setscrew What is the distance from the crest of one thread to the crest of the next thread called? - ✔✔Pitch What type of locking device uses a second nut run up against the first which flattens when tightened? - ✔✔Pal it What is the tolerance accepted in the elevator industry of not specified? - ✔✔a.+- 1/64" How are threads specified on metric bolts - ✔✔Pitch of the threads
