Which of the following devices indicates how much pressure you have in your air tanks?
A. Application pressure gauge
B. Low air pressure warning signal
C. Ammeter
D. Supply pressure gauge
Answer : D. Supply pressure gauge
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Each component in a communicating control system must have its own:
A) Power supply. B) Transformer. C) Microprocessor. D) 24 V relay.
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The formula to determine the arithmetic mean or average of a set of n numbers is 
Answer the following statement true (T) or false (F)
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When building a stair with a total rise of 7?-7?, the number of risers required and their unit rise is _____
a. 11 risers, each 7-1/2? high b. 12 risers, each 7? high c. 13 risers, each 7? high d. 14 risers, each, 7-1/4? high
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A system is excited by a signal X(t) = 4 ret(t/2) and its response is 
What is its impulse response?
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