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ASA POWERPLANT ORALS EXAM LATEST 2024 WITH ACTUAL QUESTIONS AND CORRECT VERIFIED ANSWERS/ALREADY GRADED A+ 100% GUARANTEED TO PASS CONCEPTS(ALL WHAT YOU NEED) LATEST EDITION 2024$23.99
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ASA POWERPLANT ORALS EXAM LATEST 2024 WITH ACTUAL QUESTIONS AND CORRECT VERIFIED ANSWERS/ALREADY GRADED A+ 100% GUARANTEED TO PASS CONCEPTS(ALL WHAT YOU NEED) LATEST EDITION 2024
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Course
ASA POWERPLANT ORALS
Institution
ASA POWERPLANT ORALS
ASA POWERPLANT ORALS EXAM LATEST 2024 WITH ACTUAL
QUESTIONS AND CORRECT VERIFIED ANSWERS/ALREADY
GRADED A+ 100% GUARANTEED TO PASS CONCEPTS(ALL
WHAT YOU NEED) LATEST EDITION 2024
ASA POWERPLANT ORALS EXAM LATEST 2024 WITH ACTUAL
QUESTIONS AND CORRECT VERIFIED ANSWERS/ALREADY
GRADED A+ 100% GUARANTEED TO PASS CONCEPTS(ALL
WHAT YOU NEED) LATEST EDITION 2024
In what position should the crankshaft be when a magneto is being timed to
the engine? - ANSWER-The piston in cylinder no.1 should be in the correct
position for ignition to occur. This is normally about 30 degrees before top
center on the compression stroke.
What is the purpose of a cold cylinder check? - ANSWER-A cold cylinder check
determines which cylinder is not firing. Run the engine for a few minutes at the
speed, and on the magneto, at which it runs roughest. Shut it down and feel
the exhaust stack near the cylinder head. The cylinder with the stack that is not
as hot as the others is the cylinder that has not been firing.
What is checked on engine run up to determine the operational condition of
the engine? - ANSWER-Idling RPM and manifold pressure, engine acceleration,
maximum static RPM and manifold pressure, magneto drop, ignition switch
safety check, propeller pitch change, propeller feathering, oil pressure, fuel
pressure, and fuel flow.
,How can you determine the firing order of an 18-cylinder radial engine? -
ANSWER-Begin with cylinder 1, add 11 and subtract 7, whichever will keep the
numbers between 1 and 18. 1-12-5-16-9-2-13-6-17-10-3-14-7-18-11-4-15-8.
What are two main causes of a cylinder having low compression? - ANSWER-
Piston rings not seating or broken, and valves not seating or burned.
What is a hydraulic lock in an aircraft engine? - ANSWER-Oil has drained past
the piston rings and filled the combustion chamber of cylinders that are below
the center line of the engine. If the crankshaft is turned over with this oil in the
cylinder it will lock, and there is a probability that the piston, cylinder, or
connecting rod will be damaged.
How is a hydraulic lock removed from an aircraft engine? - ANSWER-Remove a
spark plug from the locked cylinder and drain all the oil out. Clean the spark
plug and reinstall it.
What is a low-tension ignition system? - ANSWER-It is an ignition system using
a magneto with a brush-type distributor and a coil that has no secondary
wiring. Low voltage is directed from the magneto to a transformer mounted on
the cylinder head. Her the low voltage is boosted to a high voltage and is
directed through a very short high-tension lead to the spark plug. There is one
transformer for each spark plug.
What is a floating cam ring on a large radial engine? - ANSWER-It is a cam ring
that rides on a shelf-type bearing with a large amount of clearance between
the bearing and the ring. When adjusting the valves on an engine with a
floating cam ring, the pressure of the valve springs on the opposite side of the
engine must be removed so the cam ring will be tight against the bearing for
the valves being adjusted.
,Why is valve clearance adjusted on radial engines, but not on most horizontally
opposed engines? - ANSWER-Most horizontally opposed engines have
hydraulic valve lifters that keep all of the clearance out of the valve train. Radial
engines have solid lifters.
Why are both the hot and cold valve clearances given for most radial engines? -
ANSWER-The hot clearance is given for valve timing purposes. The timing is
adjusted with the valves in cylinder number one, set with the hot clearance.
When the timing is set, all of the valves are adjusted to their cold clearance.
What must be inspected to determine the airworthiness of an engine
installation? - ANSWER-The propeller, lubrication system, ignition system, fuel
metering system, cooling system, and the exhaust system.
What checks should be made to determine the proper operation of a
reciprocating engine installation? - ANSWER-Idle RPM and mixture, static RPM,
propeller pitch change operation, magneto check, ignition switch safety check,
and carburetor heat check.
Where can you find the correct grade of fuel and amount of engine lubricating
oil for an aircraft engine? - ANSWER-In the Type Certificate Data Sheets (TCDS)
for the aircraft.
What are the basic steps in troubleshooting an engine installation? - ANSWER-
A. Know how the system should operate B. Observe how the system is
operating. C. Divide the system to find the trouble. D. Look for the obvious
problems first.
Where do you find the procedures to follow when correcting a defective
condition in an aircraft engine? - ANSWER-In the engine maintenance manual.
, Where do you find instructions for removing an engine from an aircraft? -
ANSWER-In the aircraft maintenance manual.
What must normally be done to a nose-wheel airplane before removing an
engine? - ANSWER-The tail of the airplane must be supported.
What should be done to the cylinders to protect them from rust and corrosion
when preparing the engine for long-time storage? - ANSWER-Spray a
preservative oil inside the cylinders and replace the spark plugs with desiccant
plugs.
What should be used to cover the ends of fuel and oil lines that have been
disconnected from the engine? - ANSWER-The correct plugs or caps. Never
cover the end of a line with tape.
What is meant by a QEC engine assembly? - ANSWER-An engine that has been
prepared for a quick engine change. The engine is on its mount and all of the
accessories are installed. A minimum of time is required to change engines. All
that is needed is for the controls, wiring, and fluid lines to be connected to the
firewall.
What is meant by rigging the engine controls so they have some "cushion"? -
ANSWER-The control on the engine component must contact its stop before
the control handle in the cockpit reaches its stop. This causes the control
handle to spring back a slight amount when it is moved to the extent of its
travel.
What are two ways of pre oiling an engine? - ANSWER-A. before the spark
plugs are installed and after the oil tank or sump is filled, turn the engine over
with the starter until oil runs out of the fitting to which the oil pressure gage
connects. B. Use a pre oiler tank. Air pressure forces oil through all of the
passages until some of it flows from the oil pressure gage fitting.
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