Author Question: Why should electric furnaces NOT rest directly on the ceiling joists? A) The ceiling will act as ... (Read 51 times)

elizabeth18 · **on:** Jul 24, 2018

Why should electric furnaces NOT rest directly on the ceiling joists?

A) The ceiling will act as a sounding board and transmit the blower sound throughout the house.
B) Most electric furnaces cannot be installed in the horizontal position.
C) Most electric furnaces are too heavy to be supported by ceiling joists.
D) Most electric furnaces should have a 6-inch clearance to combustibles on all sides.

Question 2

At its most basic, a control requires:

A) A voltage source, a path, and a load. B) A sensor, an actuator, and a linkage.
C) A thermostat and a motor. D) A transformer, a relay, and a motor.