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MECHANICS M.E. NEEP EXAM: VERIFIED QUESTIONS
AND ANSWERS | 100% CORRECT
“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"
"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=28.26 28.26x360=10,173.6/231=44.04 gallons 4" 25': 25x12= 2x2x3.14=12.56x300=3768/231=16.3 gallons"
"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 is the weight of normal rails? 15 full 16' rails and 2 8' rails - CORRECT ANSWER 16 x 16'
x 15lbs = 3840lbs"
"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, L3"
"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"
"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" "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 have attempted to start up a 3 phase AC motor and stalls then hums or growls? - CORRECT
ANSWER If the rotor bar becomes loose at the ring connection, or if the rotor bar cracks,
current cannot flow through The bar and the entire rotor field is disrupted, causing loud growl or humming sound"
RPM= 60 x F / P/2" "You have finished digging a hole hydro, the jack is not on site. What must the hole have on it
before you leave? - CORRECT ANSWER A welded cover"
"A CWT frame weighs 10,000lbs and needs to be increased by 5%. What is the new weight of the
frame? - CORRECT ANSWER 10,500lbs
10,000 x 5 / 100= 500lbs +10,000 = 10,500lbs"
"You have 32' of rise in scaffolding and are using a 3'x5' base. Where are tie offs? - CORRECT
ANSWER 1st at 12' and cannot be more than 26' apart vertically 30' apart horizontally"
"How is a step level switch on an escalator reset? - CORRECT ANSWER Manually"
"What is the Law of Power? - CORRECT ANSWER P=ExI"
"What is the maximum voltage drop that can occur across a 500watt resistor carrying 2amps of
current? - CORRECT ANSWER 250 volts
P/I 500/2=250"
"While testing for a locked rotor condition, what could happen if the testing was carried on for too
long? - CORRECT ANSWER Damage to the stator or rotor"
"What is needed to coordinate the movement and to dispatch hall calls? - CORRECT ANSWER
A group controller"
"Where is weight added on a freight door for balancing? - CORRECT ANSWER On the top."
"What door is heavier on bi-parting freight doors? - CORRECT ANSWER The lower door
because of the tucking sill"
"what is the conversion for Kg to pounds? - CORRECT ANSWER 1 Kg = 2.205 pounds"
"what is the purpose of a gear reduction unit on a geared machine? - CORRECT ANSWER
Increased lifting capacity"
"At what speed should the Gov. switch be set to open? - CORRECT ANSWER Electrical - 90%
of tripping speed for 150 -500 fpm. 95% for anything over 500 fpm."
"at what distance from closed does the gate switch operate? - CORRECT ANSWER 2""
"What are the most common features of Load weigh? - CORRECT ANSWER Control the
generator field and inside express operation"
"does a GFCI work? - CORRECT ANSWER Detects imbalance between hot and neutral wires"
"A motor needs a sleeve bearing replaced, what type of bearing do you need? - CORRECT
ANSWER Friction Bearing
(anti-friction bearing = ball bearing)"
"Using binary logic, What dip switches must be on for a 128 bit 30 second timer at 150%? -
CORRECT ANSWER 1,3,4,6 = 45 seconds"
"How do you attach brackets to brick? - CORRECT ANSWER Inserts set back 1/4' into the
block. code could call for through bolt."
"The DBG is 6'6" using 15 pound rails with 1/4" shim on the brackets, what is DBB? - CORRECT
ANSWER 15 pound rails are 3 1/2" deep (x2) = 7"
1/4" shim (x2) = 1/2" 6'6"+7 1/2" = 7' 1 1/2""
"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 3,500 pounds x 40% = 1400 pound
7000 pounds + 1400 pounds = 8400 pounds"
"Installing a 3,000lb capacity car, how much load will the break stop and hold? - CORRECT
ANSWER 125% of rated capacity
3000 pounds x125% = 3,750 pounds"
"On traction elevators where are the bottom guide shoes mounted? - CORRECT ANSWER to
the safety plank"
"You need to find the DBG for the car, where would you find this information? - CORRECT
ANSWER Final layout or hoistway plan view drawing"
"how many millimeters are in an inch? - CORRECT ANSWER 25.4 mm"
"What is 90 seconds in binary? - CORRECT ANSWER 01011010"
"5 year test is called what? - CORRECT ANSWER Rated load test"
"how do you stack doors? - CORRECT ANSWER vertically the long way on edge."
"What is a typical reading on a high rise door lock circuit? - CORRECT ANSWER 1.8"
"What type of safeties would you have on a car that goes 300 fpm? - CORRECT ANSWER Type
B"
"What kind of safeties are needed on a false platform? - CORRECT ANSWER Spring tight
safeties"
"What tool do we use to read ripple voltage? - CORRECT ANSWER oscilloscope"
"you have 4 windings, 3 of them are dropping 30 volts. The 4th is dropping 40 volts. why is the last
one dropping more? - CORRECT ANSWER More resistance"
"you shut off the mainline on a freight car and go to work on the doors only to find out they were
still alive. What is the problem? - CORRECT ANSWER Door operator has its own power
source"
"When a grinder wheel makes a dull noise when doing a ring test what is the situation? -
CORRECT ANSWER it is cracked."
"When changing a packing what must be done first? - CORRECT ANSWER hone the piston"
"When changing a packing, what must be done to prevent unintentional movement? -
CORRECT ANSWER block up the car"
"general contractor wants to know when you need an escape hatch in a residential elevator? -
CORRECT ANSWER When there is no manual lowering."
"You find a problem with a barricade on the 45th floor of your job, based on OSHA requirements,
what are you required to do? - CORRECT ANSWER Make a hand written request to get it
repaired."
"When doing a mod and you go to an scr drive but you keep the DC motor, what phase do you use?
- CORRECT ANSWER 3 phase" "if you are tasked with testing the slide through on safeties, which type of safeties would you be
testing? - CORRECT ANSWER Pull through safeties
(type c)"
"On a roped hydraulic what do you tie the pressure switch into? - CORRECT ANSWER Down
travel circuit"
"How do you read current? - CORRECT ANSWER Ammeter in series with circuit"
"your brushes are sparking, what could be the problem? - CORRECT ANSWER High Mica"
"elevator cannot reach the final limit in the up direction, what is wrong? - CORRECT
ANSWER Shorten the hoist ropes"
"How do you check incoming current? - CORRECT ANSWER individually with a clamp on
meter"
"Where do you find asbestos in a 1960 building? - CORRECT ANSWER fire proofing"
"you have a blown mainline fuse that is too burnt to see the amp rating. How do you check
current to the circuit to find a replacement? - CORRECT ANSWER put your ammeter across
the two fuse terminals" "you have a two lead permanant magnet motor that wont open or close the doors, what is wrong?
- CORRECT ANSWER stuck brush"
"you are drilling a hole and the gfci trips. where is the imbalance of current? - CORRECT
ANSWER between the hot and neutral"
"how many pan switches are required in a vertical platform lift? - CORRECT ANSWER
Minimum of 2 at 15 pounds of pressure. Must stop within 2 inches."
"Do you disconnect all the leads from a motor when using a meggar? - CORRECT ANSWER
yes"
"you have finished digging a hole for a hydro. the jack is not on site. What must the hole have on it
before you leave? - CORRECT ANSWER a welded cover"
"you need to speed up an AC motor that has a fixed number of poles. How can you speed it up
using the RPM formula? - CORRECT ANSWER Change the frequency.
RPM = 60 x F/P/2" "Your supervisor informs you to change software on a hydro micro-processer board. The software is a 24 pin, DIP package. To properly orientate the new chip on the board, what must you
do? - CORRECT ANSWER Verify that the notch on the dip chip matches the notch on the
board" "installing horizontal doors with guides in each door panel, how far must each guide engage the
sill guage? - CORRECT ANSWER 1/4""
"you just pulled multi-cables down the hoistway of a highrise. how should you provide strain
relief for the cables? - CORRECT ANSWER required every 100 ft begin installing at the lowest
and work upwards to adjust and tension" "there is a call that a traction elevator is stuck in the overhead. in order to get the car down what
circuits do you need to jump out? - CORRECT ANSWER The primary safety circuits"
"A DC motor supplied from a 3 phase rectifier runs slow. The DC voltage is normally 320 but is
reading 220, what should you do? - CORRECT ANSWER Check the fuse feeding the AC
rectifier" "you find a blown fuse in the DC circuit feeding the door motor, When picking the replacement
fuse what should you do? - CORRECT ANSWER compare the blown fuse to the fuse rating in
the straight line diagram" "When going to a trouble call you find that the machine room has 2 inches of water in it, what is
the first thing you do? - CORRECT ANSWER Leave the machine room"
"troubleshooting a 3 input AND gate all inputs are high but the gate output is low. What is the
problem? - CORRECT ANSWER Faulty gate.
(truth table says output should be high)" "The fuses on a 3 phase input to DC direct drive are open and the elevator will not run, what needs
to be done to check for a shorted SCR? - CORRECT ANSWER Remove the SCR, connect +lead
to anode, -lead to cathode, jumper between anode and gate. .7v if good
Remove jumper and it should stay on. remove a lead and it should read infinite" "You are about to troubleshoot an elevator that is off. what print would help to make it easier to
trace the circuits? - CORRECT ANSWER Straight line diagram"
"while on service you observe the mechanical safety edges on center opening doors bumping into
each other and reopening the doors. where do you need to look to repair this problem? -
CORRECT ANSWER The safety edge retraction mechanism."
"you are preparing to hoist the car for cable installation. before doing this, what needs to be
installed? - CORRECT ANSWER The governor cable"
"Before you move a pison on a hydro, what precautions must be taken? - CORRECT ANSWER
Check the piston for debris and tightness of the head. Make sure pit is clear." "you momentarily actuate the motor starting relay. the direction of rotation is not correct. what
can be done to change the rotation direction? - CORRECT ANSWER Reverse any 2 leads of
incoming motor phases" "after receiving an inspection report , one violation is door closing force. after checking, you read
50 pounds of door force. is this code? how do you make it code compliant? - CORRECT
ANSWER Not code.
Code is 30 pounds or less. To fix it you need to adjust the torque/speed of the door operator." "What does ASME code specify regarding clearance between skirt panel and the side of the step
tread? - CORRECT ANSWER Skirt board switches are required at upper and lower ends with
a gap no more than 3/16"" "While adjusting a passenger elevator door operator with a permanent magnet DC motor, which
operation would you perform to control the motor? - CORRECT ANSWER Speed and torque
control is accomplished by varrying armature current and voltage only"
"escalator demarcation lights are required by code for what reason? - CORRECT ANSWER To
provide passengers with a visual indication when entering and exiting the unit." "as a mechanic you are sent to install an escalator. What point of reference would you use to
square the unit? - CORRECT ANSWER The column line"
cracks , current cannot flow through the bar and the entire field is disrupted causing a loud growl or humming sound." "you need to replace an unmarked single phase transformer with primary voltage at 220 vac,
current at 5 amp. What size would you need to double it? - CORRECT ANSWER Kva sizing
must be calculated from primary or secondary volt + amp info. Single phase kva = (vx1) / 1,000kva = 220 x 5 = 1100/1000 = 1.1 kva 2.2 kva needed to double."
"you have 26, 16', 22pound rails and 2, 8' 22 pound rails. what is the total weight of the rails? -
CORRECT ANSWER 27 x 16 x 22 = 9,504 pounds"
"You're pulling 15 #14 awg, 27 #16 awg and 57 #18 awg wires. how many spares are needed? -
CORRECT ANSWER 2-#
(10% spares required)"
"exciter voltage comes from what source? - CORRECT ANSWER generator"
"How could you connect an ohm meter to check load resistance? - CORRECT ANSWER Black
to common Red to V ohm switch at ohm (no power, take one lead off, connect in parallel. Analog needs to be zeroed 1st.)"
"In a series circuit with a 10k ohms resistor and a 2mA current. what is the voltage? - CORRECT
ANSWER 20v
E = R x I 10,000 x .002 = 20v" "Customer is complaining that an older SCR drive is powered elevator is causing noise in the
building power lines. What can help reduce the noise? - CORRECT ANSWER isolation
transformer (used to minimize electrical noise from being reflected back to the supply lines.)"
"Which maintenance procedure addresses the issue of proper DC generator commutation? -
CORRECT ANSWER continued contact between brushes and commutator"
"What hydro piece uses electrical power using the principle of electromagnetism? - CORRECT
ANSWER hydro valve solenoid
(electro-mechanical device operated by a coil and having an iron core steel plunger as an armature)" "sometimes it is necessary to increase output of a DC generator to overspeed an elevator as part of the safety test. if maximum output is reached and speed cannot be increased it is said to be what?
CORRECT ANSWER Saturated: cannot produce anymore magnetic lines of flux"
"how do you measure AC voltage on a digital multimeter? - CORRECT ANSWER Function to
VAC
Red lead to volt ohm Black lead to common" "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" "The motorfield 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."
"installing a 3,000 pound capacity car, how much load will the brake stop and hold? - CORRECT
ANSWER 3,750 pounds
125% of rated capacity: 3,000 x 125% = 375,000/100 = 3,750" "responding to a job on a hydro, you determine that the 50 amp circuit breaker that feeds the controller has tripped. what component of the elevator has the capability to cause this problem?
CORRECT ANSWER The pump motor."
"you are hoisting rails into the hoistway 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." "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 "
"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"
"At what distance from closed does the gate switch operate? - CORRECT ANSWER 2 inches"
"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"
"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 is the definition of working pressure? - CORRECT ANSWER Fully loaded to capacity,
Full speed running up"
"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"
"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=78.5"
"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? - CORRECT ANSWER The
elevator Abstract. Rails, lanterns, push buttons, etc. and quantity, color, material, etc" "You have to order P.I. for a 12 stop building with 3 cars. 3 floors do not have P.I. what is the total
number of P.I. you need to order? - CORRECT ANSWER 12x3=36 total floors 3 floors with no
p.i.= 36-9=27 P.I. needed"
"If an elevator travels 1760rpm @ 60hz, how many hz needed to run at 600fpm? - CORRECT
ANSWER 20hz 600/60=10 assume 4 poles. 10x2=20"
"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" "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"
"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" "Sometimes necessary to increase output of a DC generator to over speed an elevator as part of the
safety test. If maximum output is reached and speed cannot be increased, it is said to be what? -
CORRECT ANSWER Saturated: cannot produce any more magnetic lines of flux"
"Which of the following maintenance procedures addresses the issue of proper DC generator
commutation? - CORRECT ANSWER Continued contact between brushes and commutator"
"Customer is complaining that an older SCR drive powered elevator, is causing noise in the
building power lines. What can help reduce the noise? - CORRECT ANSWER Isolation
Transformer: Used to minimize electrical noise from being reflected back to supply lines"
"In a series circuit with a 10K ohm resistor and a 2mA current, what is Voltage? - CORRECT
ANSWER 20v
E=R x I 10,000 x .002= 20v"
"How would you connect an ohm-meter to check load resistance? - CORRECT ANSWER Black
to common Red to V ohm Switch at Ohm. No power, take one lead off, connect in parallel Analog needs to be Zeroed 1 st"
"Exciter voltage comes from what source? - CORRECT ANSWER Generator"
"Your pulling 15 #14awg 27 #16awg 57 #18awg wires. How many spares needed? - CORRECT
ANSWER 2
10% spares required"
"You have 26 16' 22lb rails and 2 8' 22lb rails, what is the total weight of the rails? - CORRECT
ANSWER 27 x 16 x 22 = 9504lbs"
"You need to replace an unmarked SINGLE PHASE transformer with primary voltage at 220vac
current at 5amp. What size would you need to double it? - CORRECT ANSWER KVa sizing
must be calculated from primary or secondary volt + amp info Single phase kVa=(VxI) / 1,000 kVa=220x5=1100 / 1000= 1. kVa 2.2 kVa needed to double" "You receive a call that a center opening car is running with one door partially open, how is this
possible? - CORRECT ANSWER The gate switch is activated by the door drive, but the relating
device has failed" "In order to properly bond an isolation platform, where should you connect your bonding straps?
- CORRECT ANSWER From the platform to the car sling" "As a mechanic you are sent to install an escalator, what point of reference would you use to
square the unit? - CORRECT ANSWER Column LINE"
"Escalator demarcation lights are required by code for what reason? - CORRECT ANSWER To
provide passengers with a visual indication when entering and exiting the unit." "While adjusting a passenger elevator door operator with a PERMANENT MAGNENT DC motor.
Which operation would you perform to control the motor? - CORRECT ANSWER Speed and
Torque control is accomplished by varying armature current and voltage only SHUNT MOTORS: shunt voltage increases, torque increases, speed decrease. Shunt voltage decreased, torque decrease, speed increase Armature voltage increase, rotation speed increase affecting door speed and torque." "What does ASME code specify regarding clearance between skirt panel and the side of the step
tread? - CORRECT ANSWER Skirt board switches required at upper and lower ends. Gap no
more than 3/16""
