FREE AND STUDY GAMES ABOUT RECIP. FINAL EXAM

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FREE AND STUDY GAMES ABOUT RECIP. FINAL EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -91 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: on a float type carburetor, the purpose of the economizer valve is to

Answer:

provide a richer mixture and fuel cooling at maximum power output Question 2: On which stroke or strokes are both valves on a four stroke cycle reciprocating engine cylinder open

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exhaust and intake Question 3: The source most of the heat that is absorbed by the lubricating oil in a reciprocating engine is the

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piston and cylinder walls Question 4: in order to relieve excessive pump pressure in an engines internal oil system, most engines are equipped with a

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relief valve

Question 5: the main oil filters strain the oil at which point in the system

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just as it leaves the pressure pump

Question 6: As manifold pressure increases in a reciprocating engine

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the density of air in the cylinder increases Question 7: Which of the following is the type of thrust bearing used in most radial engines

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deep ball groove Question 8: what carburetor component measures the amount of air delivered to the engine

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venturi Question 9: the device that controls the ratio of the fuel air mixture delivered to the cylinders is called

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a mixture control Question 10: what is the purpose of the check valve generally used in a dry sump lubricating system

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to prevent the oil from the supply tank from seeping into the crankcase during inoperative periods

Question 11: a spark plug is fouled when

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its spark grounds without jumping electrodes Question 12: what is the purpose of a turbocharger system for a small reciprocating aircraft engine

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to compress air to hold manifold pressure constant from sea level to the critical altitude of the engine

Question 13: A reciprocating engine automatic mixture control responds to changes in air density causes by changings in

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altitude or temperatures Question 14: on a twin engine aircraft with fuel injected reciprocating engines, one fuel flow indicator reads considerably higher than the other in all of the engine operating configurations.What is the probable cause of this indication?

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one or more fuel nozzles are clogged Question 15: The horsepower developed in the cylinders of a reciprocating engine is known as

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indicated horsepower Question 16: the spark plug is produced in a magneto ignition system when the break points are

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beginning to open

Question 17: where is the throttle valve located in a float type carburetor

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after the main discharge nozzle and venturi Question 18: on a carburetor without an automatic mixture control, as the aircraft ascends to altitude, the mixture will

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be enriched Question 19: If the exhaust valve of a four stroke cycle engine is closed and the intake is just closing, the piston is on the

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compression stroke

Question 20: The insides of some cylinder barrels are hardened by

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Nitriding Question 21: Which of the following results in a decrease in volumetric efficiency

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part throttle operation

Question 22: what is the purpose of a safety gap in some magnetos

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to discharge the secondary coil's voltage if an open occurs in the secondary circuit Question 23: The actual power delivered to the propeller of an aircraft engine is called

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brake horsepower Question 24: a carburetor preheater is not generally used on takeoff, unless absolutely necessary because of the

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resulting loss of power and possible detonation

Question 25: Increased engine heat will cause volumetric efficiency to

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decrease

Question 26: magneto pole shoes are generally made of

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laminations of high grade soft iron

Question 27: Cylinder walls are usually lubricated by

Answer:

splashed or sprayed oil