When the timer is triggered in a 555 timer, the output, pin #____, turns on.

a. 2
b. 3
c. 4
d. 5


b. 3

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The efficiency of the heat engine sketched in the figure is nearest


A) 11%
B) 18%
C) 22%
D) 33%

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Who entered the first diesel powered automobile in the Indy 500?

A. Ricardo B. Ford C. Edison D. Cummins

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A slip connector is installed on the short dimension of a rectangular galvanized metal duct system.

Answer the following statement true (T) or false (F)

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Which of these is also known as electrical potential?

A) Volts B) Amps C) Ohms D) None of these

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