On a system with a fixed metering device, a low superheat value can indicate _____
a. an overcharged condition
b. too much airflow over the condenser
c. a lack of airflow over the evaporator
d. that the metering device is too small
c
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Glow plugs are used in diesel engines to:
A. Warm the fuel B. Ignite the fuel C. Warm the intake air D. Warm the combustion chamber
Which of the following is not a name for one of the three specific portions of fiber cable?
A) section B) system C) segment D) span
?Technician A says that drill sizes are classified by letters. Technician B says that drill sizes are classified by numbers. Who is right?
A. ?Technician A only B. ?Technician B only C. ?Both A and B D. ?Neither A nor B
Which of the following is true with regard to circuit breaker interrupting capacity ratings?
a. NEMA tests are certified by unbiased reviewers. b. UL tests now include NEMA ratings. c. The interrupting capacity of a circuit breaker is the same for all voltage levels. d. UL tests are self-certification.