October 24, 2020 Quiz

8.1 Physics of the Atmosphere

Atmospheric pressure is measured with an instrument called a barometer, composed of ?
1. Fluid in a tube
2. Mercury in a tube
3. Air in a tube
Density varies ………. with the temperature ?
1. directly
2. constant
3. inversely
Temperature ……….. with altitude in the stratosphere ?
1. Increases
2. Decreases
3. Constant
Aerodynamics covers the relationships between the aircraft ?
1. Relative wind and ground
2. Relative wind and atmosphere
3. Relative wind and thermosphere
Pressure, temperature, humidity, and density of the air are ?
1. Continuously changing
2. Constant
3. Not changing
The uppermost layer of the atmosphere is ?
1. Mesosphere
2. Thermosphere
3. Troposphere
Atmospheric pressure at sea level is ?
1. 14.7 psi or 1013 mb
2. 14.7 psi or 2013 mb
3. 14.7 psi or 39.92 Hg
The action of the airflow over a body is a large part of the study of ?
1. Thermodynamics
2. Pneudraulics
3. Aerodynamics
Most civilian aviation takes place in the troposphere in which as altitude increases, ?
1. temperature decreases
2. temperature increases
3. temperature constant
It is usually defined as the force exerted against the earth’s surface by the weight of the air above that surface ?
1. Aerodynamics pressure
2. Differential pressure
3. Atmospheric pressure

15.1 Fundamentals

To convert miles per hour to meter per second multiy mph with ?
1. 1.25
2. 1.467
3. 1.667
Combustion chamber extracts _______ from chemical energy ?
1. Heat energy
2. Electrical energy
3. Solar energy
Divergant duct in subsonic aircraft ?
1. Increase pressure and velocity
2. Increase pressure decrease velocity
3. Decrease pressure increase velocity
1 btu is equal to …….. Foot pound of energy ?
1. 600
2. 778
3. 887
Brayton cycle is a
1. Thermodynamic cylce
2. Constant volume cycle
3. Aerodynamic cycle
Convergant duct in subsonic aircraft ?
1. Decrease pressure increase velocity
2. Increase pressure and velocity
3. Increase pressure decrease velocity
Thrust horse power = ?
1. Net thrust - aircraft velocity
2. Net thrust x aircraft velocity / 375
3. Net thrust - aircraft velocity / 375
Energy stored due to distortion of elastic body is known as ?
1. Potential energy
2. Kinetic energy
3. Power
The four continuous and constant events of a brayton cycle with their correct sequence are ?
1. Intake, compression, expansion (includes power), and exhaust
2. Intake, expansion (includes power), compression and exhaust
3. Compression,intake, expansion (includes power), and exhaust
Compression takes place in in which section ?
1. Turbine section
2. Combustion chamber
3. Compressor section

October 18, 2020 Quiz

M14 Propulsion

October 18, 2020 AVIATION, Quiz

M-14 Chapter No 1

Abbreviation, BTU stands for ?
1. Bio thermal unit (BTU)
2. British thermal unit (BTU)
3. Balanced thermal unit (BTU)
During combustion, the addition of fuel to burn with the air, ___________ the pressure and there is a corresponding increases in volume ?
1. decreases
2. increases
3. no change
Energy that is due to distortion of an elastic body is ?
1. Kinetic
2. Hydral
3. Potential
The fluid, when enters from the narrow section to wide section of the venturi, it produces ?
1. pressure high static pressure
2. high velocity
3. low static
Aircraft fly on the principle of Newton's ?
1. third Law of motion
2. first Law of motion
3. second Law of motion
The FADEC type control gives the electronic controller computer ?
1. partial control
2. no control
3. complete control
All aircraft propulsion systems employ ?
1. Newton’s third law of motion
2. Newton’s second law of motion
3. Newton’s first law of motion
The volume of a mass of gas at constant pressure is proportional to the temperature of the gas (air) is explained as, ?
1. Charles' Law
2. Boyle's Law
3. Bernolie theoram
Where the cross-sectional area is decreasing, the passageway is referred to as a ?
1. diverging duct
2. kinetic duct
3. converging duct
It is the type of engine that is generally categorized as high bypass or low bypass in accordance with their bypass ratios ?
1. Turbojet
2. Turbofan
3. Turboshaft

October 17, 2020 Quiz

Part 66 Preparation