The stationary magnet of a DC motor is represented by the _____.
a. armature
b. field poles
c. commutator
d. rotor
b. field poles
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Voltage ratings for power-limited fire alarm circuit conductors must be rated to __________.
A. 150V B. 300V C. 600V D. 1000V
If the temperature remains constant and the volume that a gas occupies increases, the pressure will ____.
A. decrease B. increase C. remain the same D. cannot be determined from the information given
The type of electrical output should be expected from a digital shaft angle encoder?
a. A series of digital pulses over a single pair of output wires b. Several parallel wires, each one with a digital voltage level, which must be interpreted together to get the shaft angle c. A variable resistance analog signal d. A bipolar dc voltage
Answer the following statement(s) true (T) or false (F)
1. the noise from a defective rear drive pinion bearing may produce a high pitched whistling or whining sound that changes with driving mode (on or off the gas pedal) 2. In a differential with a gear ratio of 4:1, the drive pinion would revolve four times to cause the ring gear to rotate once. 3. the positive traction differential is designed to resist the tendency of one drive wheel to rotate without the other. 4. a non-hunting ring and pinion gear will have the same teeth on the pinion touch the same teeth on the ring gear each revolution. 5. Backlash is the amount of movement between the tooth contact of two gears in mesh.