31. (8443.) In a gear-type hydraulic pump. a mechanical safety device incorporated to protect the pump from overload is the
A—bypass valve.
B—check valve.
C—shear pin.
32. (8463.) Some hydraulic systems incorporate a device which is designed to remain open to allow a normal fluid flow in the line, but closed if the fluid flow increases above an established rate. This device is generally referred to as a
A—hydraulic fuse.
B—flow regulator.
C—metering check valve.
33. (8499.) In a freon vapor-cycle cooling system, where is cooling air obtained for the condenser?
A—Turbine engine compressor.
B—Ambient air.
C—Pressurized cabin air.
General
34. (8019.) A 1 -horsepower, 24-volt dc electric motor that is 80 percent efficient requires 932.5 watts. How much power will a 1-horsepower, 12-volt dc electric motor that is 75 percent efficient require?
(Note: 1 horsepower = 746 watts)
A—932.5 watts.
B—1,305.5 watts.
C—994.6 watts.
35. (8031.) A cabin entry light of 10 watts and a dome light of 20 watts are connected in parallel to a 30-volt source. If the voltage across the 10-watt light is measured, it will be
A—equal to the voltage across the 20-watt light.
B—half the voltage across the 20-watt light.
C—one-third of the input voltage.