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Elevator Mechanic Exam Prep 2026.
Know the formula for RPM - ANSWERRPM = 60 ∙ ƒ ÷ P÷2 = Step 1. 60 x Frequency (Hz.) = Step 2. Poles ÷ 2 = Take ANSWER 1 and ÷ by ANSWER 2 = You are using a Temp Run Box and you get shocked! Why! 520 Pg. 4 - ANSWERBad Ground Scaffolding, You have 32' of rise, you are using 3x5 scaffolding. Where will the tie off points be? 140 PG. 287- 288 - ANSWERScaffolding should be tied to the structure using #9 wire or tie-in devices. The first vertical tie should be at the maximum height of 4 times the narrowest base dimension. Additional ties are not to exceed 26' vertically. Maximum horizontal distance between ties is not to exceed 30'. How much should Counterweight way? 240 Pg. 14 - ANSWERCounterweights (Typically) are hung to counter balance the weight of the car PLUS 40% of Capacity Load.
Pulling Spare Wires (Example) 10% of 52 Wires 515 Pg.26 - ANSWERNote: We do not use wire smaller than #20 in travelling cables and #24 outside travelers. Largest wires are feeders to Hoist /Pump motor We always have 10 % spares 10% of 52 = 5. On a calculator Multiply the percent 10 by the number you have and ÷ by 100 10 X 52 ÷ 100 = 5. The freight door motor is spinning but the door wont move, Why? 535 Pg. 9 - ANSWERThe correct lube must be used on chains. Read Lula and Dumb waiters 545 Pg 1 - ANSWERLula: Limited use/Limited Access (Example Wheelchair Lifts) Max Rise 25' Max Speed 30 Ft/Min Max Capacity 1400 Lbs. Max Platform Area 18 Sq/Ft. Residential Elevator: Max Rise 50 '
Multiple are times height to solve for Volume V = A∙H V = 28.27 x 300 (25" feet x 12" = 300) V = 8481 Cubic Inches Since we already know there are 231 cubic inches to the gallon 8481 ÷ 231 = 36.71 Gallons Relief valve working pressure - ANSWERRelief Valve is set at 150% working pressure SCR Example: 635 Pg 14 Figure 26 - ANSWERA Meter with the positive lead on the Anode and the negative lead on the Cathode. A jumper is placed across the Anode and Gate as well This should show .7 Volts an indication of a Good SCR Ward Leonard System 425 Pg 7,17 - ANSWERWhen the Generator and Hoist motor armature are connected in parallel they form a closed loop.In this configuration car speed is controlled by controlling the amount of current passing thru the generator shunt field. To achieve nearly constant speed under changing loads , The Ward Leonard System of automatic armature voltage control has been in use for 1/ century.
This system also regenerates power back thru the generator to the AC mains, and an energy cost is realized. Rack and Pinion Hoist (Outside Hoist) Contractor wants to move the hoist, what do you need? 850 pg 11,12 - ANSWERExtension tubes and ties Escalator is 10 inches too low, what was wrong? 825 Pg 12 - ANSWERIncorrect column mark How do you measure an Escalator Hand Rail 835 Pg 14 (Figure 14) - ANSWERMark along the top portion of incline and bottom. (Not on curved section)Measure in between. Measure Down! Advance the escalator till the bottom line is at the top and place new line at bottom using first measurement. Continue to do this till you reach first measurement. Add all together. Note: Last measurement will be shorter than the rest. What is Maximum Incline of Moving Walkway? 830 Pg 6 - ANSWERMoving walkway Max angle is 12° Escalator Max angle is 30°
a 75 Ohm resistor has blow and you don't have a replacement, What can you use? - ANSWER 3 - 225 Ohm resistors in parallel or 3 - 25 Ohm in series Series Brake Circuit (345 Pg 8 Figure 11) 345 Pg 8 Figure 11 - ANSWERYou open contact E to reduce the current. Contact E opens when the brake is lifted and inserts more of the brake resistance in this series circuit, reducing the value of the brake current. This circuit places a small portion of the break resistor in series with the brake coil at the start to limit the initial current into the coil, After the coil is fully energized, the full resistor is introduced to further reduce the coil current. That is the current has to gradually build up in the coil and once it does ,it does not require as much current to keep it energized.Like a flywheel, it takes alot to get it going but once its rotating not much is needed, The final current value prevents the brake coil from saturating and thus allow it it to drop quicker and more gently when applying mechanical brake. If a Rack and Pinion Hoist (Outside Hoist) is not Plumb ,Level and Square what can happen? 850 Pg Unknown - ANSWERThe hoist can go on safeties! Extension tubes 850 Pg 16 - ANSWERThe extension tubes provide necessary clearance for placement of concrete forms
Area of a plunger 815 Pg 15 - ANSWER(Pi) 3.1416 x (R)radius ²(squared) Plunger diameter is 10" So you divide ÷ by 2 = 5 3.1416 x 5² (25)= 78.54 inches If you arrive at site with freight doors and one side is hanging down, what is the first thing that you do? - ANSWERBlock the doors/they have their own disconnect Escalator Step Level Switch 825 Pg 37 - ANSWERStep Level switches (Sometimes referred to as Sag Switches) are located within the step band of both upper and lower truss assemblies.The switches function is to prevent a step that is sagging more than 1/8 inch at the riser end of either side of the step. This is generally caused by worn, damaged or missing step wheels. This switch is manually reset to be able to run. The Escape Hatch opens which way? - ANSWEROutward Does a residential lift require an Escape Hatch
128 Pg 12 - ANSWERRaise Boom / Arm out straight to side with thumb pointed up. Lower Boom / Arm out straight to side with thumb pointed down. Extend Boom / Thumbs pointed out Retract Boom / Thumbs pointed in Hoist up / Forefinger up rotating clockwise Hoist down / Forefinger out facing down rotating counterclockwise Traveling Cable 515 Pg 8,9 - ANSWERThe Travelling cable is connected to the car hanger to form a loop.Generally this loop should be at least 30 times the diameter of the traveling cable,The Hanger may have to be adjusted POST WISE so the loop clears the edge of the platform.The cable must have a minimum of FOUR feet vertical suspension at both the hoist-way and car hanger attachments before it starts to form into its loop. In a modernization, they plan on moving the controller 30 Feet away which ends up resulting in a voltage drop. What do you do? - ANSWERUse larger Wire
Governor tripping speeds 235 Pg 5 - ANSWERGovernor trips at 115% of rated speed. Overspeed trips 90% of governor tripping speed. ex. car travels 400fpm 400x1.15= 460x.9= Weight of rails Question: I you have 15 full 16 lbs. rails and two 8' sections. How much do they weigh? - ANSWER15 (Rails) ,16 Lbs., 2 8Ft sections 2 x 8 = 16 total rails are now 16 16 lbs. x 16 ft. (Length of standard rail) = 256 Lbs. 256 Lbs x 16 = What is an ok substitute for a top rail for a barricade? 131 Pg 9 - ANSWERsteel rope Who can you demand a MSDS sheet from to check chemicals in a cleaning product. 110 PG 13 - ANSWERYour elevator Company Superintendent/Manager What is needed for a False Platform 225 Pg 9 - ANSWERSafeties
Step ladders: Never step on top two steps. When replacing a circuit board in a controller, what should you do after the power is Off? 645 Pg 14 - ANSWERUnless directed you should handle all PSBs using a ground strap. Never Remove or install a PCB unless the power is removed from the system! Who gives you a rite to a safe workplace? 125 Pg 1,2 - ANSWEROSHA Static Load test (Hydraulic Elevator) A car is given a Annual Static Load Test. The car drifts down 15 inches in ten minutes with no noticeable oil leak. Where is it leaking? 820 Pg 12 - ANSWERthe annual cylinder test (Static Load Test) is required on unexposed cylinders.The test is performed after the relief pressure test by placing the empty car at any location and marking the location of the sill or jack to determine if there is any movement. Any movement that can not be accounted for by temperature change,valve leakage,or visible leaks after 15 minutes indicates an UNDERGROUND LEAK. They give you a voltage of 480 on Primary and 216 on secondary and a current and asked which transformer you would need to order. 1KVA 1-1 , 2KVA 2-1 , 3KVA 2- 1
To ANSWER Current is needed. also helps to know if Single Phase or Three Phase - ANSWERSingle Phase Transformers and Three Phase Transformers require 2 pieces of information:
- The Load Line to Line voltage (V) volts
- The Maximum Load phase current (I) current For a Single Phase Transformer (Calculation) KVA = (V x I) ÷ 1000 = For A Three Phase Transformer (Calculation) Note: (1.732) is the numerical value for the (square root of 3) or (3√) KVA = (V x I x 1.732) ÷ 1000 = KVA = (V x I x 3√) ÷ 1000= You are sent to an industrial plant to perform a repair in an elevator pit that has been determined to be a "Confined Space", What general level of training must you have to perform your task? 133 Pg 14 - ANSWEREntrant Traction & Hydraulic elevator machines have many hazards, Which of the following would you consider the most dangerous? - ANSWERRotating Equipment You are installing elevator machine and sheave. Where would the machine and secondary sheaves be aligned. 230 Pg 17 - ANSWERCenter of Rail Measrements
When using personal fall protection, The life line should be made of a synthetic material or wire rope with a minimum breaking strength of? - ANSWER5000 Lbs. Which one of the following moving Hazards is called the silent killer? 120 Pg 6 - ANSWERCounterweight You are preparing to replace a resistor on a car out of service. What should you do first? - ANSWERLock Out / Tag Out During Hydraulic pit maintenance, what are the three major hazards? - ANSWEROil, Tripping and electricity You are using a portable ladder to get from landing to the machine room level. How far above the upper level must the side rails of the ladder extend? 132 Pg 13 - ANSWER3 Feet You are installing push buttons and notice they have snake eye screws. What tool must be used? 205 Pg 10 - ANSWERTamper Proof When using hoisting materials, How often should they be checked for defects? - ANSWERBefore every pick
You are working with eye bolts. What would you check to determine the safe working load? 210 Pg 24 last paragrah - ANSWERWe never use to hoist / Otherwise known as in line load Installing the limit cam on the car, you notice holes in different locations on the mount. Where do you find the correct measurements to set it? 175 Pg 8 - ANSWERMechanical detail Drawings You are on a callback and you find the pulley came off the Pump Motor and the set screw is missing.What type of set screw is needed to replace the missing one? - ANSWERCup set screw You have been told to measure the outside diameter of a pipe. What tool would you use? 205 Pg 4 - ANSWERCaliper A team is installing a 200Fpm. car with spring buffers. What is the minimum stroke? 215 Pg 4 Figure 5 - ANSWER4" inches 100 or less 1½ 101 to 150 2½
When using a clevis with a screw type pin, what must you do before each lift? 210 Pg 9 - ANSWERTighten or inspect the pin A mechanic has a car that weighs 7000 Lbs. with a capacity load of 3500 Lbs. The counter weight balance is 40%, What does the counterweight weigh? 204 Pg 14 - ANSWERCounterweights typically are hung to counter balance the weight of the car plus 40% of capicity load. 3500 (Capacity) x 40 ÷ 100 = 1400 Lbs 1400 (40 % of capcity) + 7000 (Car Weight) = 8400Lbs. Your installing an simplex Hydro Elevator with a total rise of 48'. How many rails will you need if you stack them staggered? - ANSWER 6 Rails are 16 feet standard length Hydros only have car rails , so a SET of rails 48 ÷ 16 = 3 and we need a SET so x 2 = 6 You are installing an elevator with a capacity load of 3000 Lbs.How much of a load should the brake stop and hold if properly adjusted? 230 Pg 2 - ANSWERASME Rule 207.8 requires that an elevator shall be able to lower , stop and HOLD 125% of rated load safely.
3000 Lbs. x 1.25 = 3750 3750 Lbs. which is 125% On a traction elevator the bottom guide shoes or roller guides are fastened to the? 240 Pg 4 - ANSWERSafety Plank You have a hoist rated at 3000 Lbs. If you used a double block to single block reeving , what would your total lifting capacity be? - ANSWER6000 Lbs. Your apprentice ask you what the DBG is for a new installation you are on. Where would you find this information? 175 Pg 11 - ANSWERFinal Layout/ hoistway plan view drawing While hoisting a rail with a capstan winch with a single whip line, the apprentice has a hard time lifting the rail. What can be done? 210 Pg 17 - ANSWERAdd another wrap to the winch When responding to a service call on a hydro elevator, you determine that the 50 Amp. circuit breaker that feeds the controller has tripped. Which component of the elevator system had the capability of causing this problem? - ANSWERThe Pump Motor
