The refrigerator containing R-12 is operating at a 26.1 psig suction pressure. The boiling point in the evaporator is ____°F.
A. 20
B. 24
C. 27
D. 30
Answer: C
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Technician A says sometimes the exhaust lobe on the camshaft will wear quickly and more severely than the intake. Technician B says the roller cam cuts valvetrain friction by 75%. Who is right?
A. Technician A B. Technician B C. Both technicians D. Neither technician
A Rankine heat engine uses water as the operating fluid. The steam leaving the boiler is saturated vapor at P = 1 MPa. The fluid leaving the turbine is at P = 0.2 MPa, and the turbine efficiency is 75 %. The fluid leaving the condenser is saturated liquid at P = 0.2 MPa. The pump work is 2 kJ/kg. What is the overall efficiency of the cycle?
A. 9.4 B. 0.10 C. 0.13 D. 0.12 E. Insufficient information to solve
Which device is used to connect an output device to the computer's data bus?
A) an octal latch B) a decoder C) a three-state octal buffer D) a demultiplexer
The line graph shows the monthly consumption of energy in kilowatt-hours for a house during a one-year period. Find the total amount of energy consumed during the year.
Fill in the blank(s) with the appropriate word(s).