Type ____ cable is a factory assembly of one or more insulated circuit conductors enclosed in an armor of interlocking metal tape or a smooth or corrugated metallic sheath.
a. AC
b. DC
c. BC
d. MC
d. MC
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Which sign in the figure above can be used to warn about unsafe practices?
a. B b. C c. D d. E
Why is it important to cycle the furnace on and off several times when replacing a sequencer?
A) To make sure the power is working correctly. B) To make sure that only the heating elements are coming on and not the blower. C) To make sure the heating elements and the blower are turning on at the same time. D) To make sure the heating elements and the blower are switching on and off in the correct cycle.
How many binary digits are required to count to decimal 100?
A) 3 B) 100 C) 7 D) 2
An air-conditioning system using capillary tubes is operating on a 95°F outdoor temperature and an evaporator superheat of 12°F. If water is sprayed on the condenser, what will happen to the superheat and why?
What will be an ideal response?