When metering in zeotropes, why must the liquid flash off to vapor before entering the compressor?
A) Ensure the unit and cylinder remain in a saturated state
B) To prevent too much liquid from damaging the compressor
C) To prevent the system from freezing solid
D) To ensure maximum efficiency throughout the system
B
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Fill in the blank(s) with correct word
A dc series motor runs a constant-torque load. The terminal voltage of the motor is 200 V, the speed is 500 rpm, the armature current is 25 A, the armature resistance is 0.2 ?, and the field resistance is 0.6 ?. If the armature is shunted by a 10 ? resistance, what is the speed of the motor?
What will be an ideal response?
What is the maximum safe fill level for a refillable refrigerant cylinders?
A. 80% B. 90% C. 70% D. 60%
Name the plan that shows how water is diverted over and away from the roof system, and typically shows ridges or valleys in the roof, roof drains, and downspouts:
What will be an ideal response?