Commercial and industrial refrigeration systems:
A) Are only used in production facilities.
B) Refer to retail food and cold-storage equipment and facilities.
C) Are used only in supermarkets.
D) Use three-phase equipment only.
B
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A loud "bang" is heard and felt every time the accelerator is depressed or released on a rear-wheel drive vehicle. Technician A says that a leaking shock absorber could be the cause. Technician B says that a broken torque arm could be the cause. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
If electric heating elements are used in conjunction with a heat pump, when do they operate?
A) The electric heating elements operate whenever the heat pump is not operating. B) The electric heating elements operate simultaneously with the heat pump. C) The electric heating elements operate in the first stage. D) The electric heating elements operate in the second stage.
Atoms are composed of:
A) Protons, neutrons, and electrons. B) Positrons, neutrons, and electrons. C) Positrons, neutrinos, and electrons. D) Protons, neutrinos, and electrons.
The tool used to create pipe threads on the outside of a pipe is called a ____________________.
Fill in the blank(s) with the appropriate word(s).