How do newly installed loops become clogged?
A) The water temperature is outside the allowable range.
B) Pipe shavings restrict the water flow.
C) The pressure is set incorrectly.
D) Air in the loop corrodes the connections.
B
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What is a machine that converts chemical (fuel) energy into mechanical force?
A. Motor B. Torque C. Engine D. Drivers
Horsepower is used to rate the _____.
a. length of operation of a motor b. synchronous speed of a motor c. output capacity of a motor d. thermal protection of a motor
Which of the following statements is false?
A. The constant volume heat capacity of an ideal gas is a function of temperature only. B. The internal energy of an ideal gas is a function of both temperature and pressure. C. There is no explicit “flow work” term in the generalized energy balance because flow work is accounted for in the enthalpy term. D. The specific volume of a liquid is frequently modeled as constant with respect to temperature and pressure. E. In some cases such as low pressures or low volumes, enthalpy and internal energy values are essentially identical.
Typical primary coil resistance specifications usually range from ________ ohms
A) 0.5-3 B) 500-1,500 C) 100-450 D) 6,000-30,000