If a mercury thermostat seems out of adjustment, the first thing to do is _____.

a. recalibrate the thermostat
b. reset the system switch to Off
c. check for accurate leveling
d. adjust the setting lever


c. check for accurate leveling

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The fractional dimensions found on welding fabrication drawings will have a denominator or 2, 4, 8, or  _____.?  

A. 10? B. 12? C. 16? D. 20?

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The United States per capita consumption of mutton and lamb is about _____ pounds

a. 2 1/2 c. 10 b. 5 1/2 d. 25

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AMCA fan performance classifications are based on:

A) The physical design of the fan wheel. B) Minimum and maximum fan RPM for the design airflow. C) The minimum and maximum motor horsepower. D) The upper and lower ranges of static pressure and outlet velocity.

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A rotameter can be used to provide a feedback signal for closed-loop control.

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

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