When fluids are rated, what do SAE and API stand for?

What will be an ideal response?


Society of Automotive Engineers, American Petroleum Institute

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When current begins to flow through a(n) ____, a magnetic field expands around the ____.

A. conductor B. resistor C. inductor D. capacitor

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What type of output does an induction pulse generator used to read shaft or rotor speed produce?  

A. AC B. DC C. PWM D. constant frequency

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What is the purpose of the white ceramic pieces on the strip heaters?

A) They concentrate the heat of the strips. B) They insulate the heater wire from the metal frame supporting it. C) They make it easier to identify where the heat strips are installed. D) They seal the heat produced by the strips inside the furnace.

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Partially open damper blades can be closed by _____

a. speeding up the actuator motor b. caulking the damper frame c. increasing enthalpy sensor voltage d. adjusting damper linkage

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