Mechanics Exam 2026 Exam Questions
and Answers | A+ Score Assured
** An MOV burns out, you replace it but cannot read voltage or resistance.
What should you do? - 🧠 ANSWER ✔✔Replace it with a larger one (630)
* On a Ward-Leonard circuit, the brake is set but the motor is trying to slip
through the brake. What circuit is the issue? - 🧠 ANSWER ✔✔Suicide
circuit (425)
** A Hydro runs up with no load but does not run up with a full load. What is
the issue? - 🧠 ANSWER ✔✔The relief valve is set too low (805)
,** Runby for a 1:1 car hits the CWT buffer 4" below the top landing. The
CWT runby should be set at 18". How much should the ropes be
shortened? - 🧠 ANSWER ✔✔22" for 1:1.
For a 2:1 with the same issue is 44".
** You need to work on a freight door retiring cam. You LOTO the mainline
disconnect but there is still power to the cam. What circuit is still hot? - 🧠
ANSWER ✔✔Mainline disconnect (535)
** The contractor requests that the vertical center of the Rack and Pinion
hoist be moved. How is this accomplished? - 🧠 ANSWER ✔✔Adjust Tie
downs/Wall ties (805)
** Working pressure on a Hydro is 400 PSI. What is the correct Relief Valve
Setting? - 🧠 ANSWER ✔✔600 PSI Max. (805)
400 psi x 150% = 600 psi
** A contractor wants to raise the car speed from 100 FPM to 125 FPM. It
currently has a 12" sheave. What size sheave is required? - 🧠 ANSWER
✔✔15"
(125 /100 = 1.25 1.25 x 12 = 15)
, ** There is slight arcing at the Brushes and Commutator. What actions
must be taken? - 🧠 ANSWER ✔✔None. (430)
"Heavy arcing is due to light brush pressure. Mechanical wear indicates
heavy brush pressure.
** How much resistance is normally measured across a normally closed
switch ? - 🧠 ANSWER ✔✔1.2 ohms or 1 to 2 ohms
** A car traveling in the hoistway always stops at the same point and blows
a fuse. What is the problem? - 🧠 ANSWER ✔✔Traveling cable has a cut or
short
** How is a Class 1 (yearly) buffer test performed? - 🧠 ANSWER ✔✔At slow
speed and the buffer must return in 90 seconds. (555) *(60 seconds is
acceptable) (90 seconds is code)
5 year test (Class 5) is car at rated load and speed. Buffer must return in 90
seconds. CWT at rated speed and buffer must return in 90 seconds.
** How many Strain Supports are required on a 350' raceway? - 🧠
ANSWER ✔✔4
One for every 100'
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
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and Answers | A+ Score Assured
** An MOV burns out, you replace it but cannot read voltage or resistance.
What should you do? - 🧠 ANSWER ✔✔Replace it with a larger one (630)
* On a Ward-Leonard circuit, the brake is set but the motor is trying to slip
through the brake. What circuit is the issue? - 🧠 ANSWER ✔✔Suicide
circuit (425)
** A Hydro runs up with no load but does not run up with a full load. What is
the issue? - 🧠 ANSWER ✔✔The relief valve is set too low (805)
,** Runby for a 1:1 car hits the CWT buffer 4" below the top landing. The
CWT runby should be set at 18". How much should the ropes be
shortened? - 🧠 ANSWER ✔✔22" for 1:1.
For a 2:1 with the same issue is 44".
** You need to work on a freight door retiring cam. You LOTO the mainline
disconnect but there is still power to the cam. What circuit is still hot? - 🧠
ANSWER ✔✔Mainline disconnect (535)
** The contractor requests that the vertical center of the Rack and Pinion
hoist be moved. How is this accomplished? - 🧠 ANSWER ✔✔Adjust Tie
downs/Wall ties (805)
** Working pressure on a Hydro is 400 PSI. What is the correct Relief Valve
Setting? - 🧠 ANSWER ✔✔600 PSI Max. (805)
400 psi x 150% = 600 psi
** A contractor wants to raise the car speed from 100 FPM to 125 FPM. It
currently has a 12" sheave. What size sheave is required? - 🧠 ANSWER
✔✔15"
(125 /100 = 1.25 1.25 x 12 = 15)
, ** There is slight arcing at the Brushes and Commutator. What actions
must be taken? - 🧠 ANSWER ✔✔None. (430)
"Heavy arcing is due to light brush pressure. Mechanical wear indicates
heavy brush pressure.
** How much resistance is normally measured across a normally closed
switch ? - 🧠 ANSWER ✔✔1.2 ohms or 1 to 2 ohms
** A car traveling in the hoistway always stops at the same point and blows
a fuse. What is the problem? - 🧠 ANSWER ✔✔Traveling cable has a cut or
short
** How is a Class 1 (yearly) buffer test performed? - 🧠 ANSWER ✔✔At slow
speed and the buffer must return in 90 seconds. (555) *(60 seconds is
acceptable) (90 seconds is code)
5 year test (Class 5) is car at rated load and speed. Buffer must return in 90
seconds. CWT at rated speed and buffer must return in 90 seconds.
** How many Strain Supports are required on a 350' raceway? - 🧠
ANSWER ✔✔4
One for every 100'
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
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