If a technician needs to check the refrigerant pressures on a system with a small charge:
A) A short refrigeration gauge should be used.
B) Only the high side of the gauge manifold set should be connected.
C) A standard gauge manifold set should be connected to both sides of the system.
D) Only the low side of the gauge manifold set should be connected.
A
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The first response to a fire is to _____.
a. lower the load b. secure the crane c. cease crane operation d. extinguish the fire
Which one of the following is least like the other four?
A. closed shop B. lockout C. yellow dog contract D. blacklist E. company town
With the system operating, a technician gets a reading of 20 V between the L1 and T1 terminals at the contacts of the contactor. This tells the technician that:
A) The contactor is operating correctly. B) The compressor is defective. C) The contacts are defective because they have a measurable voltage drop. D) The transformer is defective because the voltage should be 24 V.
If a 50 mH inductor is in series with a 50 k? resistor across a 50 VDC source, what is the maximum current that will flow in the circuit?
A) 1 ?A B) 1 mA C) 10 mA D) 100 ?A