The __________ the number of poles used in a stepper motor, the better the resolution.
A. smaller
B. larger
Answer: B
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How many degrees of CRANKSHAFT rotation are required for a piston to travel from TDC to BDC and return to TDC?
A) 90
B) 720
C) 360
D) 180
In a dual-fuel heat pump packaged system, when does the furnace go into use?
A) Only during winter conditions B) Once the outdoor temperature is below the balance point C) Once the outdoor temperature drops to the balance point D) Only when it is most economical
Refrigerant increases in volume as it travels through the:
A) Compressor. B) Condenser. C) Entropy. D) Metering device.
____, often referred to as "urbanite," can be removed and recycled on the same site, saving the cost of disposal and new material.
A. Old railroad ties B. Recycled plastic ties C. Old concrete slabs D. Pressure-treated timbers