What coolant tester that measures specific gravity is no longer recommended by the American Society for Testing and Materials (ASTM)?
What will be an ideal response?
Because of inaccurate results, the American Society for Testing and Materials (ASTM) no longer recommends hydrometer testing. A hydrometer measures specific gravity, which changes a good deal with temperature.
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Finishing knives range from a narrow putty knife to an extremely wide taping knife with a _____.
a. 10" blade b. 12" blade c. 24" blade d. 30" blade
A piston compresses two kilograms of air in an insulated cylinder such that the pressure changes from 100 kPa to 1000 kPa. If the initial temperature is 25ºC, the entropy change of the air is nearest:
A) 3.6 kJ/K B) 2.2 kJ/K C) 1.7 kJ/K D) 0.008 kJ/K
The difference between a liquid receiver and a suction accumulator is that:
A) Receivers receive the refrigerant that accumulators accumulate. B) A liquid receiver is used after the evaporator on the high side. C) An accumulator is located on the high side just before the condenser. D) Receivers only allow liquid to leave while accumulators only allow vapor to leave.
In a wye-connected load, the line current and phase current are the same.
Answer the following statement true (T) or false (F)