Engineering, 06.04.2021 02:50 kaidee
A vapor compression refrigeration cycle operating with R-134a has a temperature of 15 deg. F exiting the expansion valve, a pressure of 100 psia in the condenser, and a temperature of 145 deg. F leaving the compressor. Assuming the system is charged and operating correctly, what is the estimated net refrigeration effect (GENRE) of this unit, in Btu/lbm
Answers: 2
Engineering, 03.07.2019 23:20
Two technicians are discussing the intake air temperature (iat) sensor. technician a says that the computer uses the iat sensor as a backup to the engine coolant temperature (ect) sensor. technician b says that the powertrain control module (pcm) will subtract the calculated amount of fuel if the air measures hot. who is correct
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Engineering, 04.07.2019 18:10
Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.
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Engineering, 04.07.2019 18:20
Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above
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Engineering, 04.07.2019 18:20
Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?
Answers: 3
A vapor compression refrigeration cycle operating with R-134a has a temperature of 15 deg. F exiting...
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