Technician A says that some crankcase vent systems use a calibrated orifice instead of a PCV valve Technician B says that turbocharged engines often use an oil/water separator in the PCV system. Which technician is correct?
A) Technician A only
B) Technician B only
C) Both technicians
D) Neither technician
Ans: C) Both technicians
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Technician A says that all O- rings are OK to use with R 134a systems. Technician B says that the color of the O-ring indicates the material it is made from. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
A 200-ft-long section of a steam pipe whose outer diameter is 4 in passes through an open space at 50°F. The average temperature of the outer surface of the pipe is measured to be 280°F, and the average heat transfer coefficient on that surface is determined to be 6?Btu/h•ft2•°F. Determine (a) the rate of heat loss from the steam pipe and (b) the annual cost of this energy loss if steam is generated in a natural gas furnace having an efficiency of 86 percent and the price of natural gas is $1.10/therm (1 therm = 100,000 Btu).
What will be an ideal response?
Deep cycling means ________
A) The battery is fully discharged and then recharged B) The battery is overfilled with acid (H2SO4) C) Overcharging the battery D) Overfilling or underfilling the battery with water
What portion of the fiber strand carries the transmitted light?
A. Cladding B. Core C. Protective jacket D. Couplings