Block 1 Exam

Question 1

Once Fuel / Air is mixed where does it go?
And from there on?

When do spark plugs fire, when does ignition happen?

Answer 1

Intake manifold (in)
Intake Valve 
Cylinder 
Compression Stroke 
Combustion Stroke
Exhaust Valve (out)
Exhaust Manifold 
Muffler
Exhaust Pipe

Question 2

On a single cylinder 4 stroke engine how many combustion stages occur.

Answer 2

Once every two rotations of the crankshaft.

Question 3

Which indicator shows power output with a constant speed prop?

Answer 3

Manifold Pressure Gauge

Question 4

Which indicator shows power output in a fixed pitch propeller?

Answer 4

Tachometer

Question 5

What would cause the AOA on a fixed pitch propeller to increase?

Answer 5

Decrease in speed.

Question 6

Trading a 7252 propeller to a 7256 what would be affected and how?

Answer 6

Cruise Performance would increase

Takeoff Performance would decrease

Question 7

What does the bendix do?

Answer 7

Acts like a jack screw and is attached to the starter. Once the starter begins the bendix engages and unscrews, engaging the flywheel.

Question 8

4 cycles of 4 stroke engine:

Answer 8

Intake
Compression
Combustion
Exhaust

Question 9

5 parts of a turbine Engine:

Answer 9

Intake 
Compression
Combustion
Turbine 
Exhaust

Question 10

What moves the piston?
What does the piston move?
What does the connecting rod move?
What does the crankshaft move?

Keep going until you reach the valve.

Answer 10

Expansion of gasses moves the piston
Piston moves the connecting rod
Connecting rod moves the crankshaft
The crankshaft moves the crankshaft gear

Camshaft Gear
Camshaft
Cam Lobes
Cam Roller
Push Rod
Rocker Bar
Valve Spring
Opens Valve

Question 11

What are camshaft lobes:

Answer 11

Oval protrusions attached to the camshaft that push up and actuate the cam rollers which push the push rod up to the rocker arm.

Question 12

How is a two stroke engine different than a 4 stroke?

Answer 12

No Standing Oil

Fuel/air mixture comes to bottom o crank case and when piston comes down it enter cylinder. When piston goes up it fires and comes out as the piston makes it’s way down again.

Question 13

In an ARCHER with a constant speed prop:

Pitching forward you don’t adjust any other controls, initially what will happen?

Answer 13

AOA on blade will decrease because of an increase in your speed.

Question 14

What do the flywheels do?

Answer 14

Fly outward, taking the weight of the prop.
Prop will move at a higher RPM

RPM is always opposite pitch

Question 15

Benefits of a Radial Engine?

Answer 15

Better Cooling
Better Harmonics (less vibration)
Power to Weight Ratio

Question 16

Aerodynamic Twisting on a constant speed propeller will try and bring blades to a ______ pitch because it wants to ________ the blade to _______ with the ________________

Answer 16

Aerodynamic Twisting on a constant speed propeller will try and bring blades to a lower pitch because it wants to flatten the blade to align with the relative wind.

Question 17

Before I start the engine, manifold pressure will read

Answer 17

Slightly under Altimeter Pressure

Question 18

Part 23 does what?

Answer 18

Outlines certifications for GA

Question 19

What’s the difference between AD’s and Service Bulletins?

Answer 19

AD’s are mandatory, SB’s are a last ditch effort to get people to comply without having to make an AD.

Question 20

If I rent a plane can I do preventative maintenance?

Answer 20

NO, only owner/operator can do preventative maintenance on an aircraft.