When driving a set of doubles, it is necessary to close which shut-off valve in the last trailer:
a. Front valve
b. Back valve.
c. Middle section valve.
b. Back valve.
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The Krebs cycle is part of photosynthesis
Indicate whether the statement is true or false
The effects of moisture in the refrigeration system are which of the following? You may select more than one
A) Metering device freeze-up B) Acid formation in the system C) Higher-than-normal pressures D) Internal system corrosion E) Dilution of the refrigerant oil
Technician A says press bending reduces the diameter of tubing. Technician B says a mandrel bender prevents changes in a tube's diameter during the bend. Who is correct?
A. Technician A B. Technician B C. Both technicians D. Neither technician
A reversible heat engine receives 25,500 Btu/hr of heat from a high-temperature reservoir at 1100 R, and produces 4.2 hp of power. What is the temperature of the low-temperature reservoir.
Given: TH = 1100 R; Q?H=25,500Btu/hr; W = 4.2 hp = 10,689Btu/hr. What will be an ideal response?