Power3

To allow surplus oil to return to the crankcase, holes are drilled In. the piston pin. the piston oil control ring grooves. the oil scraper ring grooves. both the oil control and the oll scraper rings.

Excessive valve clearance wll cause the duratlon of valve opening to. increase for both intake and exhaust valves. decrease for both Intake and exhaust valves. decrease for intake valves and increase for exhaust valves. increase for intake valves and decrease for exhaust valyes.

Cam-ground pistons are installed in some aircraft engines to. provide a better fit at operating temperatures. equalize the wear on pistons that do not operate in a vertlcal plane. act as a compensating feature so that a compensated magneto is required. none of the above.

Knuckle pins form the hinge between. the master rod and the crankshaft. the pistons and the connecting rods. the pinion gears and the reductlon gear cage. the articulating rods and the master rod flanges.

At what speed range is a fixed pitch propeller designed to be most efficient?. ground idle. cruise. flight idle. none of the above.

What happens to the blade angle of a constant speed propeller in flight if the throttle is advanced?. it will stay the same. it will be decreased. it will be increased. none of the above.

What is the flat side of the propeller blade called?. the back. the face. the tip. the but.

The thrust reverser accounts for how much percentage of braking?. 12%. 10%. 20%. 40%.

The following be a signíficant factor In the failure of an englne to develop full power at take-off. improper adjustment of the carburetor heat valve control leakage. improper adjustment of the carburetor heat valve control leakage.

Why should a Px carburetor be "soaked" before its installation is considered complete?. It conditlons the diaphragm to the exact pliablity with whlch they were calibrated. It conditlons the diaphragm to the exact pliablity with whlch they were calibrated.

Correct idle mixture adjustment is Indicated if movement of the mixture control to the cut-off position rejects in. slight RPM Increase (50 RPM) and then It drops of. slight RPM Increase (50 RPM) and then It drops of.

The difference between a "cold" and a "hot" spark plug is the variation in. plug reach. spark gap. length of the insulator core nose. sealing between the insulator and electrode.

An alrcraft magneto is shut off by. opening the primary circuit. opening the secondary circuit. grounding the primary circuit. grounding the secondary circuit.

The fourth electrode in the magneto sparking order of a nine cylinder radial engine serves cylinder #. 2. 4. 7. 9.

The magneto timing should ensure that the E-gap position occurs when the breaker points are. open. closed. just opening. just closing.

At what speed must a crankshaft turn if each cylinder of a four stroke cylinder engine is to be fired 200 times a minute. 100 RPM. 200 RPM. 300 RPM. 400 RPM.

A magneto impulse coupllng. is used to provide a hl voltage advanced spark during start. is used to provide a hi voltage retarded spark during start. is electrically energlzed by the booster coil. supplies voltage to the retard polnts during start.

During routine inspection of a magneto, the breaker polnts are found to be badly pitted and burned. A likely cause would be. an incorrect E-gap setting. too wide a spark plug gap. a faulty primary capacitor. a faulty secondary coil.

A manifold pressure gauge indicates. The Brake Mean Effective Pressure. The differential pressure between the intake manifold and atmosphere. variatlons of atmospheric pressure at different altitudes. the absolute pressure in the Intake manifold.

A hissing sound from the exhaust stacks when the propeller is being pulled manually indicates. a cracked exhaust stack. worn piston ring. a rich mixture. exhaust valve blow-by.

How should the exhaust system be lnsoected on an alrcraft that utilizes an exhaust heat exchanger as a sOurce of cabin heat. hydrostatically tested. X-ray the exchanger to detect cracks. with the heater air shroud removed. with an exhaust gas analyzer.

By use of a differential pressure tester, it is determined that #3 cylinder of a nine-cylinder radial engine will not hold pressure after the crankshaft has been rotated from top dead center compression stroke #1 cylinder. How can this indication usually be interpreted. a normal indication. exhaust valve blow-by. Badly worn or damaged piston rings. A damaged exhaust valve or insufficient exhaust valve clearance.