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ELEVATOR MECHANIC EXAM 2024 REAL 200 ACTUAL QUESTIONS WITH 100% CORRECT ANSWERS UPDATED 2024 GUARANTEE A+ JUST RELEASED
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ELEVATOR MECHANIC EXAM 2024 REAL 200 ACTUAL QUESTIONS WITH 100% CORRECT ANSWERS UPDATED 2024 GUARANTEE A+ JUST RELEASED A contractor wants to raise the car speed from 100fpm to 125fpm, it currently has a 12" sheave. What sheave is required? - CORRECT ANSWER >>>>Diam=12" 12/4=3" 25fpm=3" 100fpm + 25fpm= 12"+3"= 15" sheave A MOV (Metal Oxide Varistor) burns out. You replace it, but cannot read voltage or resistance. What should you do? - CORRECT ANSWER >>>>Replace it with a larger MOV On a Ward-Leonard circuit the break is set, but the motor is trying to slip through the break. What is the issue? - CORRECT ANSWER >>>>Suicide Circuit You have an old DC motor and are adding an SCR drive, what do you do to the interpoles? - CORRECT ANSWER
Leave the interpoles alone. When adding a SCR drive to
the generator, the series loop is removed, as are the 3 resistors. Everything else remains the same A hydro runs up with no load, but will not run with a full load. What is the issue? - CORRECT ANSWER >>>>The relief valve is set too low Runby for a 1:1 hits the CWT buffer 4" below the top landing. CWT runby should be set at 18". How much should the ropes be shortened? - CORRECT ANSWER >>>>22" You need to work on a freight door retiring cam, you LOTO the main line but there is still power on the cam. What circuit is still hot? - CORRECT ANSWER >>>>Door Operator Disconnect/ Main Line Disconnect The contractor requests that the vertical center of a Rack and Pinion hoist be moved. How do you do this? - CORRECT ANSWER >>>>Adjust Tie Downs and Wall Ties Working pressure on a Hydro is 400psi. What is the maximum relief valve setting? - CORRECT ANSWER
400psi x 150%= 600psi What must be installed on a false car before operation? - CORRECT ANSWER >>>>Spring Loaded Safeties.
There is slight arcing between the brush and commutator. What action must be taken? - CORRECT ANSWER >>>>None. Heavy arcing=Light brush pressure. Heavy bush pressure=mechanical wear If rigging gear is roped 3:1 and a BEAM CLAMP is used to lift a 6,000lb load. What is the beam capacity? - CORRECT ANSWER >>>>18,000lbs. Beam capacity is cut in half with use of clamp, when rigging all blocks, rope, and clamps will be Equal to the lowest load rating How much resistance is measured over a normally closed switch? - CORRECT ANSWER >>>>1.2ohms. should be zero, but will never be that low A car traveling in the hoistway always stops at the same spot and blows a fuse. What causes this? - CORRECT ANSWER >>>>Traveling cable has a cut/exposed wire or a short How is a class 1 yearly buffer test preformed? - CORRECT ANSWER >>>>Car at bottom landing and on inspection, jump out direction and final limits. With pit clear, run down to compress buffers, buffers should fully extend within 90 seconds. 5yr: Full load Full speed CWT: Full speed Empty
How many strain supports are required on a 350ft raceway?
Slow speed and constant pressure What is the required amount of retainer clips for wedge shackles and what is the spacing? - CORRECT ANSWER Minimum 2 clips. 1st at a maximum 4x the diameter of the rope 2nd at a maximum 8x the diameter above the 1st clip A 300ohm resistor burns out, but you don't have another one. How can you make one? - CORRECT ANSWER >>>> 600ohm resistors in parallel is 300ohms. Resistance is half of
highest resistor in parallel circuit. 3 225ohm resistors in parallel is 75ohms. When cutting laminated panels, which direction should the finish side face? - CORRECT ANSWER >>>>Finish side facing the cutting edge of the tool. Blade will burr the backside How do you cut a finished floor? - CORRECT ANSWER
Cutting blade away from finished side
A 480vac stepdown 240vac transformer is connected to a 3 phase rectifier, what is the output voltage? - CORRECT ANSWER >>>>320vac 3 phase full wave = 1.33x output voltage A car is loaded with 125% and sinks, why? - CORRECT ANSWER >>>>Slipping through the break If you find a broken or missing barricade what should you do? - CORRECT ANSWER >>>>Write up a formal inspection request What are the consequences of misaligned joints on a Rack and Pinion? - CORRECT ANSWER >>>>Broken Gear teeth. CWT derailment. Excessive wear/ crease the surface of the tube A dumbwaiter is 9sqft in area, 4ft high, and capacity is 13.9lb/ft3. What is total capacity? - CORRECT ANSWER
9 x 4 x 13.9= 500lbs Max capacity
Minimum 2 clips. 1st at a maximum 4x the diameter of the rope 2nd at a maximum 8x the diameter above the 1st clip A 300ohm resistor burns out, but you don't have another one. How can you make one? - CORRECT ANSWER >>>> 600ohm resistors in parallel is 300ohms. Resistance is half of highest resistor in parallel circuit. 3 225ohm resistors in parallel is 75ohms. When cutting laminated panels, which direction should the finish side face? - CORRECT ANSWER >>>>Finish side facing the cutting edge of the tool. Blade will burr the backside How do you cut a finished floor? - CORRECT ANSWER >>>>Cutting blade away from finished side A 480vac stepdown 240vac transformer is connected to a 3 phase rectifier, what is the output voltage? - CORRECT ANSWER >>>>320vac 3 phase full wave = 1.33x output voltage A car is loaded with 125% and sinks, why? - CORRECT ANSWER >>>>Slipping through the break If you find a broken or missing barricade what should you do? - CORRECT ANSWER >>>>Write up a formal inspection request What are the consequences of misaligned joints on a Rack and Pinion? - CORRECT ANSWER >>>>Broken Gear teeth. CWT derailment. Excessive wear/ crease the surface of the tube A dumbwaiter is 9sqft in area, 4ft high, and capacity is 13.9lb/ft3. What is total capacity? - CORRECT ANSWER >>>>9 x 4 x 13.9= 500lbs Max capacity You must enter a pit with a toxic atmosphere, how do you proceed? - CORRECT ANSWER >>>>Following proper OSHA procedure with proper training and PPE
When changing a 1:1 car rated at 600fpm and 2,000lb capacity to a 2:1, what are the new ratings? - CORRECT ANSWER >>>>300fpm 4,000lbs capacity Half the speed, Double the capacity A vertical platform lift has a clearance of 1 inch. How much will it have to move to meet code? - CORRECT ANSWER
Move in ¼ inch. Code is ¾ inch A car weighs 2500lbs with a capacity of 2500lbs, the CWT is weighted at 40%, how much is the motor lifting when the Cutting blade away from finished side A 480vac stepdown 240vac transformer is connected to a 3 phase rectifier, what is the output voltage? - CORRECT ANSWER >>>>320vac 3 phase full wave = 1.33x output voltage A car is loaded with 125% and sinks, why? - CORRECT ANSWER >>>>Slipping through the break If you find a broken or missing barricade what should you do? - CORRECT ANSWER >>>>Write up a formal inspection request What are the consequences of misaligned joints on a Rack and Pinion? - CORRECT ANSWER >>>>Broken Gear teeth. CWT derailment. Excessive wear/ crease the surface of the tube A dumbwaiter is 9sqft in area, 4ft high, and capacity is 13.9lb/ft3. What is total capacity? - CORRECT ANSWER >>>>9 x 4 x 13.9= 500lbs Max capacity You must enter a pit with a toxic atmosphere, how do you proceed? - CORRECT ANSWER >>>>Following proper OSHA procedure with proper training and PPE When changing a 1:1 car rated at 600fpm and 2,000lb capacity to a 2:1, what are the new ratings? - CORRECT ANSWER >>>>300fpm 4,000lbs capacity Half the speed, Double the capacity A vertical platform lift has a clearance of 1 inch. How much will it have to move to meet code? - CORRECT ANSWER >>>>Move in ¼ inch. Code is ¾ inch A car weighs 2500lbs with a capacity of 2500lbs, the CWT is weighted at 40%, how much is the motor lifting when the car is fully loaded? - CORRECT ANSWER >>>>2500(car) + 1000(40%) 3500. 5000-3500=1500lbs lifted by the machine How must Oxygen and Acetylene tanks be stored? - CORRECT ANSWER >>>>Vertically, 12 feet apart, or on a cart with a ½ hour fire barrier between them What is code for sill to sill distance? - CORRECT ANSWER Minimum ½ inch Maximum 1 ½ inches When drilling a jack hole in sandy conditions what type of drill rig is required? - CORRECT ANSWER >>>>Rotary or Auger bit. Rotary=Soft Percussion=Rocky Combo=Solid
A customer does not want an escape hatch on a residential elevator, under what condition is this legal? - CORRECT ANSWER >>>>Manual operation must be provided Your helper wired the down direction and final limit switches, now the car will only travel up, what is the issue? - CORRECT ANSWER >>>>The down direction limit was wired incorrectly. What are the effects of one rope sitting deeper in the sheave groove? - CORRECT ANSWER >>>>The rope wears out and breaks faster There is a noise coming from a freight door. The sheave is moving, but the chain is not. What is the problem? - CORRECT ANSWER >>>>Oil on the drive chain What is the effect when you change a sling angle from 60 degrees to 30 degrees? - CORRECT ANSWER >>>>More tension, less capacity. Any angle 30 or less is dangerous How many points of a contact must be maintained on a ladder? How far above landing must it extend? What is proper Ratio? What steps don't we use? - CORRECT ANSWER >>>>3 points of contact. 3 foot above. 4:1. Top 2 steps
You open a dumbwaiter access panel and it still runs, what is the problem? - CORRECT ANSWER >>>>Pit access switch is not working properly You perform a static load test with the pit valve closed. The car sinks 6" in 15 minutes. What is the problem? - CORRECT ANSWER >>>>Cylinder leak Where should you aim a fire extinguisher to put out a fire? - CORRECT ANSWER >>>>At the base of the fire Car with selective collective system is moving to the lobby to take a call, an up call is put in at the 2nd floor, what happens? - CORRECT ANSWER >>>>The call is bypassed until the car is traveling up During construction you land an escalator, but it is 10mm low, what is wrong? - CORRECT ANSWER >>>>The pit is too deep or column MARK is off During construction the Omega CWT rails have been damaged, what happened? - CORRECT ANSWER >>>>The Omegas were over tightened How do you handle a co-worker who shows up drunk? - CORRECT ANSWER >>>>Speak with MIC, Call BA, call supervisor
How do you attach brackets to brick? - CORRECT ANSWER
Inserts set back a ¼ inch into the block. Code could call for through bolts What is Selective Collective System? - CORRECT ANSWER Controller that allows an elevator to bypass calls in the opposite direction of travel. Generator runs at 600rpm and has 4 poles, what is the output frequency? - CORRECT ANSWER >>>>20hz 600/60=10 10x2=20 RPM 60 x frequency / pole/ If a XOR gate was connected to a NOR gate and attached to an AND gate with a High output. What is input of the XOR gate A&B? - CORRECT ANSWER >>>>Both must be High Using BINARY logic, what DIP switches must be on for a 128 bit 30 second timer set at 150% - CORRECT ANSWER 1,3,4,6=45 seconds How many wires are needed for the following circuit? Exclude spares. BCE---SPI/BCD---SP2/BCD---SP4/BCD--- UR1/BCE---UR2/BCE---DR1/CRE--- DR2/GRD - CORRECT ANSWER >>>>11 wires. You do not need the duplicates
How must a 9 lead 480/240 motor be wired for High Voltage? - CORRECT ANSWER >>>>L1(1) L2(2) L3(3) Low Voltage L1(1-7) L2(2- 8) L3(3-9) 7-4 8-6 9-5 4 5 6 + 120v______0------- 0_______R2________A_________R1_______GRD There is voltage at the switch, but none at A, what is wrong?
Door limit switch malfunction Car is running normally, but the Fire Service buzzer will not shut off, Why? - CORRECT ANSWER >>>>EHP 3-2 shorted Relay STR has voltage, TRU has voltage, RU no voltage, why?
Car will not travel to 2 without a 3 call, and will not go down to 3 without a 2 call? - CORRECT ANSWER >>>>2F1 4- 6 Sheet 3, why wont the motor start? - CORRECT ANSWER
MOL1 T/B The step level switch on an escalator has been tripped, where do you check? - CORRECT ANSWER >>>>Upper and Lower Truss assemblies, trips if step sags more than 1/8th inch You get a trouble call for an inoperable freight door. What must you do before you begin work? - CORRECT ANSWER Block open the door. LOTO. Barricades You get shocked when attempting to move a car with a temp run bug, what is the problem? - CORRECT ANSWER Ground wire not hooked up A motor needs a sleeve bearing replaced, what type of bearing do you need? - CORRECT ANSWER >>>>Friction bearing AKA Sleeve bearing. Anti-Friction Bearing AKA Ball bearing 7 - foot platform with inside cab clearance of 6'8", what is the thickness of the cab walls? - CORRECT ANSWER >>>>2-inch- thick walls
You notice Roughing on the Gov and Tail Sheave. What should you check? - CORRECT ANSWER >>>>Rope Diameter Car doors are dragging in the sill, how high should the car doors be above the sill? - CORRECT ANSWER >>>>¼ inch What type of safeties are required on a 300fpm car? - CORRECT ANSWER >>>>Type B wedge clamp What stopping devices are required on vertical platforms? - CORRECT ANSWER >>>>2 pan switches. 15lbs max pressure What type of oil is required for sleeve bearings? - CORRECT ANSWER >>>>Single viscosity SAE 20 What is the maximum inclination for moving walks? - CORRECT ANSWER >>>>12 degrees How does a GFI work? - CORRECT ANSWER >>>>Detects an imbalance between Hot and Neutral Wires Who is required to provide MSDS or SDS for a solvent you are using? - CORRECT ANSWER >>>>Your employer How do emergency doors swing? - CORRECT ANSWER
Outwards
You have an EMT run with 3-90s, 2-45s, and a saddle bend. What is required? - CORRECT ANSWER >>>>An Intermediate pull box. 360 degrees is most bends for a continuous pipe What is the maximum distance between vertical race way supports? - CORRECT ANSWER >>>>15 feet What is the smallest wire used inside travelers and outside of travelers? - CORRECT ANSWER >>>>#20awg #24awg What is the maximum distance between strain relief supports? - CORRECT ANSWER >>>>100 feet What is the maximum length Motor-Generator leads can be outside of a controller? - CORRECT ANSWER >>>>6 feet In what section of NEC is elevator, escalator, moving walks, and dumbwaiters? - CORRECT ANSWER >>>>Article 620 What is the ratio between the loop and diameter of a round traveler? - CORRECT ANSWER >>>>30 times What are the most common features of Load Weigh? - CORRECT ANSWER >>>>Control generator field and Inside express operation
What is required by ASME on the car top? - CORRECT ANSWER >>>>Inspection station, Light, and Duplex outlet. At what distance from closed does the gate switch operate?
What is maximum leading edges for center opening doors? - CORRECT ANSWER >>>>½ inch What is minimum sill to gib engagement? - CORRECT ANSWER >>>>¼ inch What is minimum and maximum sill to sill gap? - CORRECT ANSWER >>>>½ inch to 1 ½ inch 1 gallon equals how many cubic feet? - CORRECT ANSWER
.134 cubic feet How many gallons are needed to run a 6" plunger 30'? - CORRECT ANSWER >>>>30' to inch= 360" 3x3x3.14=28. 28.26x360=10,173.6/231=44.04 gallons 4" 25': 25x12= 2x2x3.14=12.56x300=3768/231=16.3 gallons A force of 5,000lbs is applied to a plunger with an area of 25sqin. What is system pressure? - CORRECT ANSWER 200psi 500/25 PRESSURE=FORCE/AREA AREA=FORCE/PRESSURE What best describes the operation of a hydro valve, with the elevator at the lobby? - CORRECT ANSWER >>>>Down valve: Closed 10 % At what speed should the Gov. switch contact be set to open? - CORRECT ANSWER >>>>Electrical 90% of Tripping speed for 150fpm-500fpm. 95% for +500fpm If the DC output of a 3 phase rectifier is lower than specified, what is the problem? - CORRECT ANSWER >>>>AC fuse is blown. 1 input phase is missing What is the overlap minimum on 2 & 3 speed doors? - CORRECT ANSWER >>>>Horizontal ½ inch Vertical 1 inch What are minimum and maximum clearance between sill and car doors? - CORRECT ANSWER >>>>¼ inch Minimum 3/8-inch Maximum What is maximum leading edges for center opening doors? - CORRECT ANSWER >>>>½ inch What is minimum sill to gib engagement? - CORRECT ANSWER >>>>¼ inch What is minimum and maximum sill to sill gap? - CORRECT ANSWER >>>>½ inch to 1 ½ inch 1 gallon equals how many cubic feet? - CORRECT ANSWER >>>>.134 cubic feet How many gallons are needed to run a 6" plunger 30'? - CORRECT ANSWER >>>>30' to inch= 360" 3x3x3.14=28. 28.26x360=10,173.6/231=44.04 gallons 4" 25': 25x12= 2x2x3.14=12.56x300=3768/231=16.3 gallons A force of 5,000lbs is applied to a plunger with an area of 25sqin. What is system pressure? - CORRECT ANSWER >>>>200psi 500/25 PRESSURE=FORCE/AREA AREA=FORCE/PRESSURE What best describes the operation of a hydro valve, with the elevator at the lobby? - CORRECT ANSWER >>>>Down valve: Closed Check valve: Closed Up valve: Open
What is the definition of working pressure? - CORRECT ANSWER >>>>Fully loaded to capacity, Full speed running up What is the conversion for kg to pounds? - CORRECT ANSWER >>>>1kg=2.205lbs On a geared machine the worm and worm gear are made out of what materials? - CORRECT ANSWER >>>>Steel and Bronze What is the purpose of a gear reduction unit on a geared machine? - CORRECT ANSWER >>>>Increased lifting capacity What holds a stopped Hydraulic elevator? - CORRECT ANSWER >>>>Check valve What must be done if you get on top of a dumbwaiter? - CORRECT ANSWER >>>>Never fully get on top. Work only partially on with the mainline disconnect off How do you measure an escalator hand rail? - CORRECT ANSWER >>>>Mark the top and bottom of the inclination, measure in between and move the car until the bottom mark is at the top, measure again and continue doing this until you see your 1st mark. The last measurement will be
shorter. Add all the measurements together to get your length. A moving walk has an inclination of 10degrees, what is the highest angle it can be? - CORRECT ANSWER >>>>12degrees escalator 31degrees In a Ward-Leonard system, if all 3 contacts close what will happen? - CORRECT ANSWER >>>>The car will run at full speed What type of oil do you put in a machine? - CORRECT ANSWER >>>>Gear oil, non-detergent, single viscosity A 75ohm resistor has blown, no replacement, how do you fix it? - CORRECT ANSWER >>>>3-225ohm resistors in parallel. 3 - 25ohm resistors in series If a Rack and Pinion hoist is not plumb, level and square. What can happen? - CORRECT ANSWER >>>>Set the Safeties What are extension tubes used for? - CORRECT ANSWER
Necessary clearance for placement of concrete forms. If a hoist motor is making noise, what is the problem? - CORRECT ANSWER >>>>To help prevent distortion to the
building AC supply, INDUCTORS can be used on AC input of a solid state drive. Inductors can serve double duty, they operate as Transformers, to match input voltage, or provide voltage isolation. As well as performing filtering on notch effect. What is the area of a 10" plunger? - CORRECT ANSWER
Pie x Radius Squared= Area 3.14x5x5=78. The escape hatch opens in what direction? - CORRECT ANSWER >>>>From the outside of the car up, preventing people from getting on top of the car What drawing will show how many and location of fixtures?
You see a saw tooth wave form when using an oscilloscope out of the encoder, is that good? - CORRECT ANSWER
NO. A perfect encoder will show a square wave. Saw tooth, when encoder has a fault What are the hand signals for crane operation? - CORRECT ANSWER >>>>Thumbs out=Boom out Thumbs in=Boom in Thumb up=Boom up Thumb down=Boom down Finger up clockwise=Hoist up Finger down counter clockwise=Hoist down Arm out=Stop You are working on a MOD and have to move the controller 30 feet farther away, you notice voltage drop, what can be done to increase voltage? - CORRECT ANSWER >>>>Use a larger gauge of wire What is the weight of normal rails? 15 full 16' rails and 2 8' rails - CORRECT ANSWER >>>>16 x 16' x 15lbs = 3840lbs What is an acceptable substitute for the top rail of a barricade? - CORRECT ANSWER >>>>¼ inch thick wire rope What is the proper way to test incoming voltage? - CORRECT ANSWER >>>>3 phase AC using digital meter: L1-L2 L1-L3 L2- L
Hydro at pump starter. Traction at L1, L2, L When replacing a PCB in a controller what precautions must be taken? - CORRECT ANSWER >>>>Use a grounding wrist strap, and never remove anything with the power on Who gives you a right to a safe work space? - CORRECT ANSWER >>>>OSHA On an ANNUAL static load test, the car drifts down 15" in 10 minutes. There is no visible oil in the pit, where is the leak coming from? - CORRECT ANSWER >>>>Underground. Annual static test required for unexposed cylinders What training must be done before you can enter a pit that has been classified as a confined space? - CORRECT ANSWER
Confined space entrant training Traction and Hydraulic machines have many hazards, what is most dangerous? - CORRECT ANSWER >>>>Rotating Equipment You are installing a machine and sheave, where would machine and secondary sheaves be aligned? - CORRECT ANSWER >>>>In the center of the Rail measurements
You are testing an elevator with a rated speed of 500fpm. What is the minimum speed the safeties should set at? - CORRECT ANSWER >>>>575fpm. Mechanical:115% x 500=575. Electrical:90% x 575=517.5fpm What is one of the most dangerous Hazards in the trade and most obvious for us? - CORRECT ANSWER >>>>FALLS You are installing machines, governors, and generators, and need to know the location where it needs installed. Where would you find the information? - CORRECT ANSWER
The machine room plan view What is the minimum breaking strength of a wire rope used as Life Safety? - CORRECT ANSWER >>>>5,000 pounds What is known as the silent killer? - CORRECT ANSWER CTW You go to a trouble call and the building owner keeps asking when the car will be back up and if you can take any short cuts to get it up faster. What is your response? - CORRECT ANSWER >>>>Give a reasonable response on time and safety factors. If that doesn't work, he can **** OFF
You are preparing to replace a resistor on an out of service car. What is the 1st thing do? - CORRECT ANSWER
Make sure it is LOTO and verify no voltage. What are 3 major factors in Hydraulic pit maintenance? - CORRECT ANSWER >>>>Oil, Tripping hazards, Electricity What is the tolerance for 3/8 at .003? - CORRECT ANSWER 372-.378 bilateral=2 direction unilateral=1 direction You are installing push buttons using snake eye screws. What type of screwdriver? - CORRECT ANSWER >>>>Tamper Proof You are working with EYE BOLTS, where would you check for lifting capacity? - CORRECT ANSWER >>>>NEVER use eye bolts for hoisting You are installing the limit cam on the car and notice that the holes are not lining up. Where do you find the correct location for the cam? - CORRECT ANSWER >>>>The mechanical detail drawing You are on a call and find the pulley came off the pump motor and the set screw is missing, what kind of screw
would you use to replace the set screw? - CORRECT ANSWER >>>>Cup Screw You have to measure the outside of a pipe. What tool would you use? - CORRECT ANSWER >>>>Caliper Rule You are installing spring buffers on a 200fpm car, what is the minimum buffer stroke? - CORRECT ANSWER >>>>4inch 100fpm 1 ½ inch 100fpm-150fpm 2 ½ inch 200fpm 4 inch You are going to replace the disc on your grinder, what test should you do before using? - CORRECT ANSWER >>>>Ring test How often do electrical cords need to be checked for continuity? - CORRECT ANSWER >>>>Every 3 months The DBG is 6'6" using 15lb rails with ¼ shim on the brackets, what is DBB? - CORRECT ANSWER >>>>7' 1 ½" 15lb rail is 3 ½ deep so 7" total. 2 ¼" shim is ½". 6'6" + 7 ½" =7 foot 1 ½ inch How does OSHA classify a competent person? - CORRECT ANSWER >>>>One who is capable of identifying existing and potential hazards, and who has authorization to take prompt, Corrective measurements
Car weighs 7,000lbs with a capacity of 3,500lbs. what does the CWT weigh? - CORRECT ANSWER >>>>8,400lbs 3500 x 40 / 100=1,400lbs 7,000 + 1,400 = 8,400 You are stacking rails in a single hydro hoist way, with a rise of 48' how many rails will you need? - CORRECT ANSWER
6 total rails 48' / 16' = 3 3 x 2 sides = 6 rails Installing a 3,000lb capacity car, how much load will the break stop and hold? - CORRECT ANSWER >>>>3,750lbs 125% of rated capacity 3,000 x 125 = 375,000 / 100 = 3,750 On traction elevators where are the bottom guide shoes mounted? - CORRECT ANSWER >>>>To the safety plank You have a hoist rated at 3,000lbs, if you use a double block to single block reeving, what would your total lifting capacity be? - CORRECT ANSWER >>>>6,000lbs You need to find the DBG for the car, where would you find this information? - CORRECT ANSWER >>>>Final layout or Hoistway plan view drawing
You are hoisting rails into the hoist way using a capstan hoist, your apprentice is having a hard time pulling in rails. What can be done to make it easier? - CORRECT ANSWER
Add another or more wraps to the capstan hoist Responding to a call on a hydro, you determine that the
50amp circuit breaker that feeds the controller has tripped. What component of the elevator has the ability to cause this problem? - CORRECT ANSWER >>>>The pump motor The motor field windings on a DC motor are wound around a laminated core. The composition of the core material is dependent upon which characteristics? - CORRECT ANSWER
Permeability: the ability of a substance to pack in magnetic lines of flux in a given space You suspect a phasing issue with building power. Which controller device should you check 1st? - CORRECT ANSWER Reverse phase relay: detects if incoming power has a loss of phase or phase reversal How do you measure AC voltage on a Digital Multimeter? - CORRECT ANSWER >>>>Function to VAC Red lead to Volt ohm Black lead to common