Suppose a circuit is designed to turn off a compressor if the pressure in the system reaches a predetermined level. If the pressure becomes high enough to cause the pressure switch contacts to close, ____.
a. the CR relay coil is turned off
b. the compressor motor will connected to an auxiliary power line
c. a warning light will be turned on
d. compressor is automatically restarted by the thermostat
c. a warning light will be turned on
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Most reversing controllers only contain mechanical interlocks.
Answer the following statement true (T) or false (F)
What is pelleting of feed?
What will be an ideal response?
A high speed (HSS) lathe tool would have to be above 1300 F. (704 C.) to be overheated. A temperature of 2000 F. (1093 C.) could be produced on the cutting edge when grinding by:
A) Using the roughing wheel for finishing B) Not cooling it off in water frequently C) Using a glazed wheel or by forcing the tool into the wheel D) Using a wheel that is too coarse
One horsepower is equal to ________ watts
A) 500 B) 1050 C) 745 D) None of these