Answer the following statement(s) true (T) or false (F)
1. Variable-speed motors are commonly used to operate light loads such as ceiling fans and blower motors.
2. One type of variable-voltage control uses a triac to control the amount of voltage applied to the motor.
3. A light dimmer can be adapted for use as a motor speed controller.
4. Triac light dimmers are intended to be used with resistive loads such as incandescent lamps.
5. Series impedance control is accomplished by connecting a tapped inductor in parallel with the motor
1. TRUE
2. TRUE
3. FALSE
4. TRUE
5. FALSE
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Technician A says that an advantage of PRIME on a HEUI injector, is that it can be used for cold start conditions and eliminated once the engine is running. Technician B says that PRIME requires the HEUI plunger to have two downstrokes in a single fueling cycle. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B
A transistor is made by joining how many layers of semiconductor material?
a. Two b. Three c. Four d. Five
Electrical shock occurs when a person becomes part of an electrical circuit.
Answer the following statement true (T) or false (F)
Pipe dope is used to _____
A) clean threads before assembly B) seal and lubricate threads for ease of assembly C) reduce oxidation buildup on the threads D) repair damaged threads