Technician A says that internal wet disc brakes are mounted atthe wheel end of the axle. Technician B says that they aremounted right next tothe differential. Who is correct?
A. Technician A
B. Technician B
C. Both
D. Neither
Answer: C
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A float switch is used when a pump motor must be started and stopped according to changes in the ____ in a tank or sump.
a. mercury level b. Bourdon c. water pressure d. liquid level
Floor plans have the dimensions of _____.
a. width and height b. length and width c. length, width, and height d. length and height
The NEC® requires at least __________ of free conductor in electrical device boxes for connection to switches and receptacles.
a. 6 inches b. 8 inches c. 10 inches d. 12 inches
Why do air-source heat pumps usually require auxiliary heat?
A) Because air-source heat pumps break down a lot B) Because the heating capacity of the unit drops as house heating requirements increase C) The heat pump compressor will not start in cold weather unless it is first warmed up D) The heat that a heat pump "pumps in" must first be provided by an auxiliary heat source