Vertical pipe runs should be supported at each floor level using _____
a. clevis hangers
b. riser clamps
c. beam clamps
d. trapeze hangers
b
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Lighting fixtures that distribute 60% to 90% of their emitted light downward but also distribute 10% to 40% upward to illuminate the ceiling are classified as _____.
a. direct lighting fixtures b. diffused lighting fixtures c. semi-direct lighting fixtures d. direct-indirect lighting fixtures
Troubleshooting Reach-In / Low Temp - Diagnosis: Overcharged with refrigerant
The angular difference between the hotspot and the falloff angle determines how big the transitional zone is between the fully lighted and the dark zones
Indicate whether the statement is true or false
How is recovering into a receiver accomplished?
A) The Schrader valves are replaced with receiving hoses. B) A receiver is placed over a tube after it has been pierced. C) A plastic recovery device is emptied into a receiver. D) The refrigerant is pumped into the receiver with the king valve closed.