When charging a refrigeration system with a near-azeotropic mixture, what must be done to prevent liquid from entering the system?
A. Charge only as a vapor through the high side.
B. Charge only liquid through the high side.
C. Charge as a liquid through the low side using a restrictor.
D. Charge as a vapor through the low side using a resistor.
Answer: C
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When current flow is created by moving a conductor through a magnetic field, it is known as:
A. thermoelectricity B. photoelectricity C. piezoelectricity D. electromagnetic induction
A ____ is a relaxation oscillator that can function in either of two temporarily stable conditions and is capable of rapidly switching from one temporary state to the other.
A. multivibrator B. blocking oscillator C. Wien-bridge oscillator D. phase-shift oscillator
Most transient suppression modules consist of an RC circuit that is designed to suppress coil voltage transients to approximately what percentage of the peak coil supply voltage?
A) 200% B) 300% C) 125% D) 250%
Briefly discuss the danger caused by air bags.
What will be an ideal response?