Commutator Study guides, Class notes & Summaries
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4th Class ABSA Exam Part A Practice Questions and Answers Solved 100% Correct
- Exam (elaborations) • 105 pages • 2024
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4th Class ABSA Exam Part A Practice Questions and 
Answers Solved 100% Correct 
Absolute pressure is: -Answer-gauge pressure plus atmospheric pressure 
The motion of moving parts is _____ by friction: 
A: Prevented 
B: Improved 
C: controlled 
D: resisted 
E: Regulated -Answer-D: resisted 
Voltage is 
a) the rate of current flow 
b) the rate of electron flow 
c) electromotive force 
d) Kinetic energy 
e) A form of power -Answer-c) electromotive force 
The resistance of a conductor is affected by...
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Elevator Mechanic Exam Review exam 2022/023
- Exam (elaborations) • 17 pages • 2022
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A contractor wants to raise the car speed from 100fpm to 125fpm, it currently has a 12" sheave. What sheave is required? - 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? - 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? - Answer- Suicide Circuit 
...
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NEIEP 400 Final Exam V2 (New 2023/ 2024 Update) Questions and Verified Answers| 100% Correct| Graded A
- Exam (elaborations) • 25 pages • 2023
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NEIEP 400 Final Exam V2 (New 2023/ 2024 
Update) Questions and Verified Answers| 100% Correct| Graded A 
 
QUESTION 
 
 which statement applies when a secondary winding is partially shorted?- 
 
 
Answer: 
 current through the secondary is low. 
 
 
QUESTION 
 the direction of the magnetic field around a wire when electron current flows through it can be 
determined by ? 
 
Answer: 
 The left hand rule. 
 
 
 
 
QUESTION 
 What are naturally magnetic mat...
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ABYC ELECTRICAL STUDY 1 EXAM QUESTIONS AND ANSWERS
- Exam (elaborations) • 14 pages • 2024
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ABYC ELECTRICAL STUDY 1 EXAM QUESTIONS AND ANSWERS 
 
The reverse polarity indicator is an LED with 2 legs. One of these legs have a resistor of - ANS 25k Ohms 
 
Anodes used in cathodic protection systems shall be - ANS painted with a protective barrier coating 
 
oil pressure and temperature gauges are - ANS installed in series 
 
what type of element are in series - ANS the switches 
 
voltage regulator ( in between output and breaker) - ANS controls alternator field voltage 
...
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ABYC ELECTRICAL STUDY 1 QUESTIONS WITH COMPLETE SOLUTIONS
- Exam (elaborations) • 17 pages • 2024
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ABYC ELECTRICAL STUDY 1 QUESTIONS WITH COMPLETE SOLUTIONS 
The reverse polarity indicator is an LED with 2 legs. One of these legs have a resistor of - Correct Answer 25k Ohms 
 
Anodes used in cathodic protection systems shall be - Correct Answer painted with a protective barrier coating 
 
Oil pressure and temperature gauges are - Correct Answer installed in series 
 
What type of element are in series - Correct Answer the switches 
 
Voltage regulator ( inbetween output and breaker) - Correc...
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ABSA Exam Part A 4th Class Questions And Answers Already Rated A+.
- Exam (elaborations) • 70 pages • 2024
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Absolute pressure is:	gauge pressure plus atmospheric pressure 
The motion of moving parts is _____ by friction: 
 
A: Prevented 
B: Improved 
C: controlled 
D: resisted 
E: Regulated	D: resisted 
Voltage is 
a) the rate of current flow 
b) the rate of electron flow 
c) electromotive force 
d) Kinetic energy 
e) A form of power	c) electromotive force 
The resistance of a conductor is affected by: 
 
1. Cross section area 
2. Length 
3. Temperature 
4. Type of material 
 
a) 1,2,3 
b) 1,2,4 
c)...
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NEIEP MECHANICS EXAM REVIEW
- Exam (elaborations) • 16 pages • 2024
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A contractor wants to raise the car speed from 100 fpm to 125 fpm, it currently has a 12" sheave. What is required? - Answer-100 fpm/125 fpm= 12"/ X =15 
 
A MOV (Metal Oxide Varistor) burns out. You replace it, but cannot read voltage or resistance. What should you do? - Answer-Replace it with a larger MOV - 630 
 
On a Ward-Leonard circuit the brake is set, but the motor is trying to slip through the brake. What is the issue? - Answer-Suicide Circuit - 425 
 
You have an old DC motor and are...
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POWER ENGINEERING TECHNOLOGY (PET YR. 1): 4A ELECTROTECHNOLOGY & INSTRUMENTATION EXAM 100% CORRECT
- Exam (elaborations) • 53 pages • 2024
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POWER ENGINEERING TECHNOLOGY 
(PET YR. 1): 4A ELECTROTECHNOLOGY 
& INSTRUMENTATION EXAM 100% 
 
CORRECT 
 
The unit that refers to a flow of electrons past a given point, over a specific period of time, is the: 
a. ampere 
b. volt 
c. ohm 
 
d. watt a 
 
_______ is a unit of electromotive force. 
a. the ampere 
b. the ohm 
c. the watt 
 
d. the volt d 
 
A basic law of electricity is, unlike charge attract eachother and like charges: 
a. repel eachother 
 
b. hold eachother 
 
c. attract eachoth...
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Mechanics Exam Questions and Answers Already Passed
- Exam (elaborations) • 25 pages • 2024
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Mechanics Exam Questions and 
Answers Already Passed 
 
** An MOV burns out, you replace it but cannot read voltage or resistance. What should you do? 
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? Suicide circuit (425) 
 
** A Hydro runs up with no load but does not run up with a full load. What is the issue? The 
relief valve is set too low (805) 
 
** Runby for a 1:1 car hits t...
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MODULE 2 MOTORSTHEORY AND APPLICATION 2024 QUESTIONS WITH CORRECT ANSWERS ALREADY PASSED AND VERIFIED
- Exam (elaborations) • 17 pages • 2024
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MODULE 2 MOTORSTHEORY AND APPLICATION 2024 
QUESTIONS WITH CORRECT ANSWERS ALREADY PASSED 
AND VERIFIED 
1. The field coils of a series motor are connected in series with the . - 
: armature 
2. A(n) is used to provide the switching action required forcontinuous 
DC motor rotation.: Commutator 
3. The most common class of insulation used in motor manufacturing andrewinding is NEMA 
.: Class B 
4. Which type of motor requires brushes,slip rings, and an amortisseur wind-ing?: Synchronous 
motor...
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