Commercial and industrial refrigeration systems:
A) Are used only in supermarkets.
B) Refer to retail food and cold-storage equipment and facilities.
C) Use three-phase equipment only.
D) Are only used in production facilities.
B
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Which of the following are fundamental dimensions:
a. area, volume, power, pressure, energy b. temperature, time, mass, length c. force, energy, power, weight d. heat, power, power, weight e. electric resistance, electrical voltage, electric power
0.153
A) 0.001 53% B) 1.53% C) 15.3% D) None of these
What can be used to check that the heads are at the correct angle for the intake manifold on a V-type engine?
A) A metal rule B) A dial indicator C) A tape measure D) An angle gauge
Which of the following is the correct formula of Ohm?s law?
A) E = R/I B) E = I + R C) E = I/R D) E = IR