Commutator Study guides, Class notes & Summaries

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...

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 ...

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...

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 ...

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...

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...

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)...

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...

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...

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...