QUIZ

Question 1

Engine Type

Answer 1

4 cylinders
• Horizontally opposed
• Normally aspirated(No turbo charge)
• Air cooled (Engine oil and fuel helps cooling)
• Direct drive(Propeller is attached to the crank shaft directly without any reduction gear or trans- mission)
• Fuel injected

Question 2

Normally aspirated

Answer 2

(No turbo charge)

Question 3

Alternate air: Purpose and what happens to RPM

Answer 3

Working as a carburetor heat.

RPM drops slightly when it is open.

Question 4

Where does the alternate air heat comes?

Answer 4

Heated air around exhaust manifold is directed through the alternate air source.

Question 5

What does pilot do when he move the prop lever in the cockpit? What will happen to governor?

Answer 5

It change the tension of the speeder spring.

High tension requires more centrifugal force on the fly weight.

It increase the RPM.

Low tension requires less centrifugal force on the fly weight. It decrease the RPM.

Question 6

Where is the oil from? for the prop

Answer 6

Engine oil reservoir at the bottom of the engine.

Question 7

What will happen if you lose engine oil completely?

Answer 7

It become high pitch. Moves toward feathering.

Question 8

Will the prop feather when you shut down the engine after landing? Can you feather the prop when engine is not running?

Answer 8

No. There is anti-feather lock pin which prevent the prop from feathering below, 800RPM.

When the RPM is high, the pin hide inside sleeve due to centrifugal force.

When the RPM is low, the spring push out the pin to stop the movement of the prop.

Question 9

How many fuel pumps are there?

What drives fuel pumps?

Answer 9

4. Each engine has engine driven fuel pump and electrical fuel pump.

Question 10

How many fuel gauges are there?

Answer 10

Three. Fuel quantity gauges. Fuel pressure gauges. Furl flow gauges

Question 11

What is the purpose of cross feed?

Answer 11

To balance the weight laterally when one engine is inoperative. For longer range/endurance.

Question 12

How can you make sure you have correct fuel? Color.

Answer 12

100 is green. 100 LL is blue.

Question 13

Landing Gear System, How does it work?

Answer 13

It is electrical-hydraulic system.

Pilot can select the position(up/down) by the gear handle.

The electrical motor rotate the hydraulic pump which send the hydraulic fluid from reservoir to three actuators.

The fluid move the piston in each actuators to move the push-pull rod which are connected to the landing gears.

Each gear (Left, right main and the nose) has up limit and down limit switches

When all three up limit switches are pressed, red unsafe warning light will be off and pump will stop.

Also, there is a hydraulic pressure switch. When the gear is up and hydraulic pressure inside reaches certain amount, it disconnect the circuit and the pump will stop.

When the hydraulic pressure decrease, pressure switch activate the motor to pump the hydraulic fluid. The pressure switch and the up limit switch is in the se- rial connection so either pressure reaches the set amount or all three up limit switches are pressed the pump will stop.

When all three down limit switches are pressed, pump will stop and green lights are turned on.

Question 14

What is the color of the hydraulic fluid?

Answer 14

Red.

Question 15

What will happen in the case of loss of hydraulic fluid?

Answer 15

The gear will drop by gravity and spring.

Question 16

Is there anything to tell you the position of the nose gear?

Answer 16

There is a mirror on the left cowling to check nose gear position

Question 17

Is there any system which warns you when you forget to extend the gear for a landing?

Answer 17

There is warning horn.
When the throttle is reduced(14”) with gear up, it beeps.

When the flap is ex- tended at 25 or 40 degree with gear up, it beeps.

It beeps on the ground when the gear handle is up.

Question 18

What makes gear down when you use manual extension system?

Answer 18

It release the hydraulic pressure. The gravity and the spring pulls gear down.

Question 19

How many voltage regulators are there?

Answer 19

Two. Each alternator has its own voltage regulator.

Question 20

What is happening if you see over voltage warning light?

Answer 20

Over voltage relay shut down the alternator field as a result of over voltage caused by spike or voltage regulator failure. Recycle the master switch and/or alternator.

Question 21

How can you make sure one of the alternators is working or not?

Answer 21

Turn off the alternator one at a time. If the other load increase, the alternator you turned off was work- ing.

Question 22

What is bus bar? Location?

Answer 22

Bus bar is a piece of metal used for the distribution of the electricity. It simplify the wiring. It is lo- cated behind the circuit breakers.

Question 23

How can you detect the alternator failure? What would you do then?

Answer 23

One or both load meters indicate zero.

If only one indicates zero, turn off the other one to make sure it is working.

If both indicate zero, check master switch on, circuit breaker, recycle alternator.

If it still indicate zero, turn off the master switch to conserve the battery.

Also alternator warning light on.