FAA RECIPROCATING ENGINE INDUCTION AND COOLING SYS 1

A malfunction that causes the turbocharger waste gate or controller to fluctuate will. have no effect on manifold pressure. cause engine surges due to an erratic manifold pressure. cause the oil pressure to the turbocharger to decrease.

The purpose of an intercooler when used with a turbocharger is to cool the. exhaust gases before they come in contact with the turbo drive. turbocharger bearings. air entering the carburetor from the turbocharger.

Which of the following would be a factor in the failure of an engine to develop full power at takeoff?. Improper adjustment of carburetor heat valve control linkage. Excessively rich setting on the idle mixture adjustment. Failure of the economizer valve to remain closed at takeoff throttle setting.

The application of carburetor heat will have which of the following effects?. The manifold pressure will be increased. The mixture will become leaner. The mixture will become richer.

Which of the following assists in removing heat from the metal walls and fins of an air-cooled cylinder assembly?. An intercooler system. A baffle and cowl arrangement. An engine induction system.

Carburetor icing on an engine equipped with a constant-speed propeller can be detected by. a decrease in power output with no change in manifold pressure or RPM. an increase in manifold pressure with a constant RPM. a decrease in manifold pressure with a constant RPM.

What is the purpose of a turbocharger system for a small reciprocating aircraft engine?. Compresses the air to hold the cabin pressure constant after the aircraft has reached its critical altitude. Maintains constant air velocity in the intake manifold. Compresses air to maintain manifold pressure constant from sea level to the critical altitude of the engine.

Prolonged idling of an engine will usually result in. excessive cylinder head temperatures. increased oil consumption. foreign material buildup on spark plugs.

A broken cooling fin on a cylinder head. is cause for rejection of the head. may be filed to smooth contours if damage and/or repair limits are not exceeded. should be left alone.

What is the purpose of the rate-of-change controller in a turbocharger system?. Limits the maximum manifold pressure that can be produced by the turbocharger at full throttle conditions. Controls the rate at which the turbocharger discharge pressure will increase. Controls the position of the waste gate after the aircraft has reached its critical altitude.

What part of an air-cooled cylinder assembly has the greatest fin area per square inch?. Cylinder barrel. Rear of the cylinder head. Exhaust valve port.

The primary purpose of baffles and deflectors installed around cylinders of air-cooled aircraft engines is to. create a low pressure area aft of the cylinders. force cooling air into close contact with all parts of the cylinders. increase the volume of air used to cool the engine.

If carburetor or induction system icing is not present when carburetor heat is applied with no change in the throttle setting, the. mixture will become richer. manifold pressure will increase. engine RPM will increase.

When starting an engine equipped with a carburetor air heater, in what position should the heater be placed?. HOT. COLD. NEUTRAL.

If a fire starts in the induction system during the engine starting procedure, what should the operator do?. Turn off the fuel pump switches. Continue cranking the engine. Turn off the magneto switches.

Cylinder head temperatures are measured by means of an indicator and a. resistance bulb sensing device. wheatstone bridge sensing device. thermocouple sensing device.

Which of the following should a mechanic consult to determine the maximum amount of cylinder cooling fin that could be removed when cracks are found?. AC 43.13-1A. Engine manufacturer's service or overhaul manual. Engine structure repair manual.

Using compressor bleed air directed into a nozzle, a vortex dissipater's primary function is to. reduce wingtip vortices. increase lift capability of aircraft flaps. destroy vortices that can suck debris from the ground into engines that are mounted in pods that are low to the ground.

The position of the cowl flaps during normal cruise flight conditions is. closed. open. neutral.

The action of a carburetor airscoop is to supply air to the carburetor, but it may also. cool the engine. keep fuel lines cool and prevent vapor lock. increase the pressure of the incoming air by ram effect.

If the turbocharger waste gate is completely closed,. none of the exhaust gases are directed through the turbine. the turbocharger is in the OFF position. all the exhaust gases are directed through the turbine.

What is the position of the cowl flaps during engine starting and warmup operations under normal conditions?. Full open at all times. Full closed at all times. Open for starting, closed for warmup.

Which of the following results in a decrease in volumetric efficiency?. Cylinder head temperature too low. Part-throttle operation. Short intake pipes of large diameter.

If an engine air filter element is not routinely cleaned and becomes excessively dirty, it can cause. the engine to not start. a loss of engine power. both A and B are true.

What is the purpose of the density controller in a turbocharger system?. Limits the maximum manifold pressure that can be produced at other than full throttle conditions. Limits the maximum manifold pressure that can be produced by the turbocharger at full throttle. Maintains constant air velocity at the carburetor inlet.