What should you do to enable a non-cycling circuit breaker to close again after it has tripped and opened?
A. replace it
B. key off the ignition circuit to cool the breaker
C. short it through with a jumper wire
D. use aluminum foil to close terminals
Answer: B
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When the compressor in a system using capillary tubes is sweating, it is a sign of ____.
A. refrigerant overcharge B. dirty evaporator C. evaporator blower motor problem D. any of the above
The subsequent problems deal with the circuit below where all voltage sources are dc and the circuit is assumed to be in steady state. Also, R1 = R2 = R3 = R4 = R.
If R3 is replaced by an closed (short) circuit and I2 is known, the current through R2 will be
A. I2 / 2 B. 0 C. ?I2 D. I2 E. 2I2
Because the P205/75R14 tires on a car are replaced with P185/75R14 tires, the speedometer now reports an incorrect speed. The original speedometer drive gear had 18 teeth. How many teeth should a replacement gear have?
What will be an ideal response?
A sequential fuel injection system uses a ________ to time the fuel injection pulses
A) MAP sensor B) CMP sensor C) Throttle body sensor D) Spark sensor