What types of compressors are commonly used for large chillers?
A) Centrifugal and screw B) Rotary and reciprocating
C) Rotary and scroll D) Diaphragm and bellows
A
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Compared to a recirculating ball steering gear and parallelogram steering linkage, a rack and pinion steering gear and linkage has fewer friction points.
Answer the following statement true (T) or false (F)
A series circuit consists of four resistors that dissipate 4 mW, 6 mW, 12 mW, and 15 mW, respectively. The total wattage dissipated is
A) 15 mW B) 37 mW C) 9.25 mW D) 4 mW
For proper ventilation during the summer for cattle in barns, a minimum of _____ air changes per hour
is required.
a. 20 c. 40 b. 30 d. 50
A fuel pump is being replaced for the third time. Technician A says that the gasoline could be contaminated. Technician B says that wiring to the pump could be corroded. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B