Liquid refrigerant should always be recovered first from chillers:
A) To insure that all the oil is removed from the compressor.
B) To keep from freezing the water in the chiller tubes.
C) To prevent the removal of refrigerant oil with the refrigerant.
D) To insure the best mixing of refrigerant and water during recovery.
B
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According to the Goodyear Tire and Rubber Company, a 4 psi decrease in pressure below the recommended amount can result in a 10% loss of tread life.
Answer the following statement true (T) or false (F)
Technician Asays a voltmeter measures the electrical difference between two points of the circuit. Technician B says a voltmeter that is connected in parallel to the load device will indicate the voltage drop across the device. Who is correct?
A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A nor B
A hand-operated air pump for inflating bicycle tires must be able to generate pressures up to 80 psi. These pumps do not require the user to apply much force, however. If the user can apply up to 40 pounds, what should be the area of the pump's piston?
What will be an ideal response?
The _____ is the only ostrich that has been successfully farmed.
Fill in the blank(s) with the appropriate word(s).