?Which type of control is typically used with a room thermostat?
A. ?on/off control
B. ?floating control
C. ?modulating DC output control
D. ?differential control
Answer: A
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An isometric sketch has all of its surfaces shown at ____° angles.
A. 15 B. 30 C. 45 D. 60
What size and type weld is required?
Review drawing number 523667B0A and then answer the question.
In single-phase motor installations, the branch-circuit protection is based on NEC Table 430.52 as a percentage of full-load current. (Note: Full-load current referred to here is the Code book value.) The full-load current is listed in Table 430.248 for single-phase motors. If using a typical inverse time breaker, the percentage for single-phase motors is 250% of the Code book value for the size of the motor at the connected voltage. Briefly explain why this high percentage is allowed.
What will be an ideal response?
Technician A says that the camshaft turns at half of the crankshaft speed in a four-stroke cycle engine. Technician B says that the camshaft rotates at one-quarter the crankshaft speed. Which technician is correct?
A) Technician A B) Technician B C) Both technicians D) Neither technician