What is the most accurate instrument for checking a deep vacuum?
A. compound gauge
B. mercury "U" tube manometer
C. mercury barometer
D. electronic vacuum gauge
Answer: D
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In some late-model engines, head bolts are purposely torqued to within 2% of their yield point. This method, known as ____________________, provides a more consistent clamping force and the most fatigue resistant joint possible.
Fill in the blank(s) with the appropriate word(s).
One benefit of VFD technology is that the motor can be operated at different speeds above and below its rated _______________ speed.
Fill in the blank(s) with the appropriate word(s).
The condenser fan motor ________
A) is usually controlled by the high pressure switch B) is usually controlled by the same controls that control the evaporator fan C) is usually controlled by the same controls that control the compressor
The symbol for a 2-input OR gate that has "bubbles" on each of the inputs is equivalent to a(n)
A) AND gate. B) OR gate. C) NOR gate. D) NAND gate.