Two technicians are discussing tire pressure and temperature. Technician A says that tire pressure will drop 1 PSI for every 10 degrees drop in temperature. Technician B says that the tire pressure will increase as the vehicle is being driven. Which technician is correct?
A) Technician A only B) Technician B only
C) Both technicians A and B D) Neither technician A nor B
C
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The final choice of piping material for many applications, including fuel gases, is often controlled by _____.
a. building codes b. the material cost c. personal preference d. the installing contractor
? Identify and state the historical significance of William Johnson.
What will be an ideal response?
The common-base amplifier provides
A) voltage gain with current gain B) no voltage or current gain C) voltage gain with no current gain D) current gain with no voltage gain
If the low-side test pressure is not known, the maximum pressure that should be used for leak testing an R-22 refrigeration system with hermetic compressor is:
A) 250 psig. B) 300 psig. C) 200 psig. D) 150 psig.