A water-source heat pump does not require a defrost cycle because
A) it uses buried loops in which water is circulated, and the heat is then extracted from the water.
B) there are no check valves or extra metering devices within a water-source heat pump.
C) the fluid circulating through the water-source unit cannot be allowed to freeze.
D) most water-source units use a single bi-flow thermostatic expansion valve.
C
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Which type of blade is used with a demolition saw?
a. A chisel-tooth combination blade b. An abrasive wheel c. A carbide-tipped blade d. A combination rip blade
The idler gear contributes to torque output.
Answer the following statement true (T) or false (F)
Technician A says that most factory service manuals cover several years and models. Technician B says that most aftermarket service manuals only cover one year and model vehicle. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Binary numbers in the range of 0000 through 1001 are often called _____
A) words B) decimal C) hexadecimal D) BCD