A thermostat that is stuck open will cause ________ engine operating temperature and ________ heater performance.

Fill in the blank(s) with the appropriate word(s).


low; poor

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A ____ is used to keep the bottom of the stringer from sliding on the floor when downward pressure is applied to the stringer.

A. riser B. stair jack C. kickblock D. stringer

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When Caterpillar single actuator MEUIs are energized by the ECM drivers, voltage peaks at:

A. 5 V-DC B. 8 V-DC C. 12 V-DC D. over 100 V-DC

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Preparing a house for a future solar array is not complicated and can simplify the eventual installation if done properly. Where there is a south or near-south facing roof, it should be designed to have a minimum of ____ square feet of unshaded area with no mechanical penetrations such as plumbing vents, wires, or other obstructions.

A. 100 B. 200 C. 300 D. 400

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A major difference between three-phase motors and single-phase motors is that:

A) Three-phase motors do not need any type of starting components. B) Three-phase motors use three times as much current. C) Three-phase motors have a laminated iron rotor. D) Three-phase motors use three sets of starting components.

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