What is the purpose of ground fault protection?
What will be an ideal response?
This type of protection is intended to detect a ground-fault that is great enough to cause damage or create a hazard, but is too small to be detected quickly by the service overcurrent protective device.
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A typical radar cruise control system uses ________
A) Short-range radar (SRR) B) Electronic throttle control system to control vehicle speed C) Long-range radar (LRR) D) All of these
The coil of a current relay used with small single phase compressors should have a resistance of approximately:
A) 50 ohms. B) 250 ohms. C) 10,000 ohms. D) 1 ohm.
What is the resistance of a 100 W bulb when it is operating in a circuit with a supply of 120 V?
A) 144 ? B) 56 ? C) 2.14 ? D) 560 ?
Testing the components of a loop for functionality without using live process is known as _____
A) loop checking B) selling C) proving D) commissioning