Electrical feedback is usually a result of ________
A) Too high a voltage in circuit B) Too much current (amperage) in a circuit
C) Lack of a proper ground D) Both A and B
C
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What are the advantages of designing exposed ceilings (no T-bars and tiles)? Select all that apply.
A) Access to services will be easier. B) Space will be quieter. C) Housekeeping will be easier. D) Eliminating the ceiling will be cheaper.
When a flame retention head burner is used, the smoke level should be adjusted for _____.
a. zero smoke b. No. 1 smoke c. No. 1 to No. 2 smoke d. No. 2 smoke
____ nets are fine nets that entangle fish
A) Trammel B) Gill C) ?Shocker D) ?Hook and line
To comply with laws set forth by the EPA, the technician should __________ pressurize a system for leak-checking purposes with 100 percent refrigerant.
A. always B. never C. occasionally D. often