A new engine has just been started for the first time. Technician A says that a mechanical oil pressure gauge should be installed and monitored during this time. Technician B says to let the engine idle until the oil pressure stabilizes and the thermostat opens. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
Answer: A
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In a panelboard, the black circuit conductor in a lighting circuit is connected to a(n) _____.
a. neutral bus b. grounding bus c. bonding jumper d. overcurrent protection device
Prohibitions on the abuse of drugs apply _____.
a. to any inappropriate use of drugs or other substances that cause impairment b. only to illegal drugs, such as cocaine, crystal meth, and many others like them c. only to illegal and prescription drugs, but no other substances d. only to using someone else’s prescription or overmedicating with prescription drugs
What is the hertz rating of an AC circuit if the frequency is 20 cycles per 1/2 second?
a. 10Hz b. 20Hz c. 30Hz d. 40Hz
The gap of 0.8 V between the HIGH voltage and LOW voltage thresholds is called
A) hysteresis voltage. B) LOW voltage. C) hold voltage. D) invalid voltage.