The framing component shown is used to improve sound insulation in walls. It is called a _____.
a. runner
b. C-channel
c. resilient channel
d. track
Answer: C
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Which of the following is NOT true of a MacPherson strut?
A) The strut assembly controls spring oscillation B) MacPherson struts attach to the steering knuckle C) They are used only on the front of a vehicle D) MacPherson strut suspension systems may include an upper bearing
What does the furnace board do on most modern furnaces?
A) cycles the indoor blower motor B) controls the ignition, safety, and blower operation C) controls the flames ignition sequence D) monitors furnace safety
A valve stack would be a likely device connected to ControlNet but another PLC is usually never connected to ControlNet
Indicate whether the statement is true or false
Which of the following are non-volatile and electro-mechanical?
A) CD-ROM B) hard drive C) floppy disk D) all of the above