The fastest method for charging a large system which holds 50 pounds of refrigerant is to add:
A) Liquid into the king valve with the king valve front-seated and the system operating.
B) Liquid into the suction service valve with the system running.
C) Vapor into the suction service valve with the system off.
D) Vapor into both the suction service valve and king valve with the system off.
Question 2
Which of the following statements regarding safety training sessions is correct?
a. They are usually conducted by the project manager.
b. They are only conducted for new employees.
c. They should be conducted frequently by the crew leader.
d. They are only required after an accident has occurred.
Large-scale impacts of the (a) positive, and (b) negative phases of the North Atlantic Oscillation.
Concept map of disease and immune system
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