Commutator - Study guides, Class notes & Summaries

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)...

A length of coaxial cable used for computers, radio or television signals, is open at both ends. With an ohm meter, the resistance from the center conductor to the shield is 80 ohms. What does this indicate? A. THE CABLE IS PARTIALLY SHORTED The transistor configuration shown in the figure is B. NPN The Y axis of an oscilloscope is used to measure C. AMPLITUDE Which one of the following will cause a generator to produce DC voltage rather than AC voltage? C. THE COMMUTATOR A 4.8 V battery ...

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...

What is the commutator [qi, pj]? iℏδij What would be the value of d<O>/dt? i<[H,O]>/ℏ + <dO/dt> What are the momentum operators in cartesian coordinates? pi = (ℏ/i)*d/dqi How is angular momentum defined in cartesian coordenates? L = r x p What is the angular momentum operator in terms of tensors? Lj = εjkl * rk * pl What is the commutator [AB,C]? A[B,C] + [A,C]B What is the commutator of the Hermitian operator and the square angular momentum operator? 0

4th Class ABSA Exam Part A Practice Questions and Answers 100% Pass 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: 1...

What are the 5 basic electrical circuits fin automotive electrical systems? 1. Charging circuit 2. Starting 3. Ignition 4. Lighting 5. Accessory Which circuit supplies all of the electricity for a vehicle whenever the engine is running? The charging circuit What are the 4 basic parts of a charging circuit? 1. Batter 2. Alternator (generator) 3. Alternator Belt 4. Voltage regulator What is the usual type of battery used in automotive equipment? A lead-acid cell-typ...

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 ...

4th Class ABSA Exam Part A Practice Exam Questions With Complete Solutions Absolute pressure is: - answergauge pressure plus atmospheric pressure The motion of moving parts is _____ by friction: A: Prevented B: Improved C: controlled D: resisted E: Regulated - answerD: 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 - answerc) electromotive force The resistance of a conductor is affected by: ...

NEIEP 400 Final Exam Review Questions With Answers Latest Updated 2024/2025. A machine that converts mechanical energy into electrical energy - answers>Generator 4. What is the purpose of interpoles in a motor? - answers>Helps prevent neutral planes from shifting 5. In the basic loop circuit generator armature supplies DC power to what DC elevator hoist motor component? - answers>Motor Armature 6. If you have leakage resistance to ground, what will you use to test? - answers>M...

After installing a new battery how long should you wait to allow for pcm time : no need to wait As blower motor speed decreases the voltage drop across the resistance block.... : increases What should you do first when replacing junction block or fuse? : Unlock the battery ground cable The polarity of the voltage applied to the electromagnetic coils of an actual working DC motor is.... : a commutator When performing a volt drop test the volt meter setting should be set to the following...