Volume 2 CDC 2A651 ( Q

1. Which section of a jet engine keeps the compressor rotating?

Turbine.

Exhaust.

Diffuser

Combustion.

2. To measure barometric pressure, you would use a

Potentiometer.

Psychrometer

Pyrometer.

Barometer.

3. Which section of a jet engine introduces and burns fuel?

Turbine.

Diffuser.

Compressor.

Combustion.

4. What is the sea-level atmospheric pressure at "standard day" conditions?

13.5 psi

14.7 psi

49.94

40.55 psi

5. "The combination of decreased pressure above an airfoil, and the increased pressure below the airfoil produces lift" is best described by

Bernoulli's principle.

Newton's first law of motion

Newton's second law of motion

Newton's third law of motion

6. Which engine component meters fuel for combustion?

P&D valve.

Fuel Pump.

Fuel control.

Fuel nozzles.

7. Which type of duct would decrease the velocity and increase the pressure of a gas as it passes through?

Elbow.

Straight.

Divergent.

Convergent.

8. The tendency of an object at rest to remain at rest and the tendency of an object in motion to continue its motion in a straight line at the same speed is called

Energy.

Inertia.

Friction

Potential.

9. What directs the gases onto the first-stage turbine wheel blades in a jet engine?

Flameholder.

Combustion chamber.

Turbine wheel blades.

Turbine stator.

10. The heat content per pound of kerosene is how many Btu's?

10,500

15,000

18,500

40,000

11. Which method of producing thrust does a turboprop engine use?

Accelerating a large mass of air by a small amount.

Moving a small quantity of air through a large velocity change

Using the same working fluid for propulsive force as that used within the engine.

12. Which type of horsepower is delivered to the propeller for useful work?

Brake.

Indicated.

Frictional.

Equivalent shaft.

13. When two or more turbine wheels are used in a jet engine,which component

Diffuser

Jet nozzle.

Combustion chamber

Turbine stator

14. An unbalanced force on a body produces or tends to produce an acceleration in the direction of the force and that the acceleration, if any, is directly proportional to the force and inversely proportional to the mass pf the body. " this statement is

Bernoulli's principle.

Newton's first law of motion.

Newton's second law of motion.

Newton's third law of motion

15. What effect does a divergent design of a diffuser have on air pressure?

Increases pressure.

Decreases pressure.

Has no effect on pressure

Results in pressure fluctuations.