Air compressors are started directly or indirectly on a call for more air by a ____.
a. thermostat
b. float switch
c. pressure switch
d. limit switch
c. pressure switch
You might also like to view...
A ground source heat pump needs a heat exchange bed? 
square feet in size. So far, an area of 
square feet has been excavated. Find the area that still needs to be dug.
Fill in the blank(s) with the appropriate word(s).
The bottom of a cylindrical container has an area of 10 cm2. The container is filled to a height whose mean is 5 cm, and whose standard deviation is 0.1 cm. Let V denote the volume of fluid in the container.
a. Find 
.
b. Find 
.
Which of these is NOT one of the primary causes of the overpopulation of dogs and cats?
A) parents who want their children to experience "the miracle of birth" B) unplanned matings C) mating for research purposes D) mating for commercial purposes
Technician A says that when working on a refrigerant system you should work in a well-ventilated area. Technician B says to determine the type of refrigerant used in a system, a refrigerant identifier should be used prior to servicing the vehicles refrigerant system. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B