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Rocket Propulsion MCQ

What type of propulsion uses electrical power?

Solar electric propulsion

Rocket motor

Nuclear electric propulsion

Chemical electric propulsion

Answer

Correct Answer: Nuclear electric propulsion

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What type of propulsion uses the heat of a nuclear reactor?

Electric propulsion

Nuclear electric propulsion

Nuclear air propulsion

Nuclear thermal propulsion

Answer

Correct Answer: Nuclear thermal propulsion

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What type of propulsion uses nuclear explosions to propel a spacecraft?

Nuclear pulse propulsion

Solar electric propulsion

Antimatter propulsion

Solar wind propulsion

Answer

Correct Answer: Nuclear pulse propulsion

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What are the two types of fields that can be used to accelerate a plasma?

Electric and gravitational fields

Electric and nuclear fields

Magnetic and electric fields

Electric and magnetic fields

Answer

Correct Answer: Electric and magnetic fields

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What type of field is used to accelerate plasma?

Dielectric

Chemical

Magnetic

Electrostatic

Answer

Correct Answer: Electrostatic

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What are the types of Electric Propulsion?

Dielectric, Magnetic, Thermal

Electrothermal,Electrostatic, Electromagnetic

Answer

Correct Answer: Electrothermal,Electrostatic, Electromagnetic

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What type of power generates nuclear propulsion?

Solar

Steam

Wind

Fission

Answer

Correct Answer: Fission

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Electric fields are used to accelerate what?

Electrons

Ions

Protons

Molecules

Answer

Correct Answer: Ions

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What is a chemical reaction?

Energy releasing

Burning

Transformation

Change in mass

Answer

Correct Answer: Energy releasing

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Specific Impulse equal to What?

Distance travelled per unit time

Thrust divided by the amount of fuel used per unit time

RPM of the engine

Weight of the object

Answer

Correct Answer: Thrust divided by the amount of fuel used per unit time

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What is the name of the rocket engine efficiency measurement?

Thrust

Specific Consumption

Specific Power

Specific Impulse

Answer

Correct Answer: Specific Impulse

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What is the force generated by an engine or rocket?

Thrust

Power

Kinetic energy

Energy

Answer

Correct Answer: Thrust

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What is the conservation of momentum?

Momentum is conserved

Initial momentum equals final momentum

Momentum is not conserved

None of these

Answer

Correct Answer: Initial momentum equals final momentum

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What do liquid chemicals do when they react?

Cause a foamy reaction

Cause a fire

Form Liquid

Expand greatly

Answer

Correct Answer: Expand greatly

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What do the chemicals in a liquid fuel react with?

The ground

Each other

The engine

The air

Answer

Correct Answer: Each other

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What kind of engine is the turbojet?

Jet engine

Gas turbine

Piston

Turbine

Answer

Correct Answer: Gas turbine

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What type of fan is on a turbojet engine?

Cylinder

Convective

Ducted

Combined

Answer

Correct Answer: Ducted

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What is a propellant?

A substance that is used to clean paint

A mixture of fuel and oxidizer that burns to produce rocket thrust

An explosive that is used in fireworks

Gas used to inflate balloons

Answer

Correct Answer: A mixture of fuel and oxidizer that burns to produce rocket thrust

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What is a propellant that burns to produce rocket thrust?

Nitrogen

Liquid oxygen

Solid fuel

A mixture of fuel and oxidizer

Answer

Correct Answer: A mixture of fuel and oxidizer

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What is the name of the process in which the compressed mixture is ignited?

Power stroke

Injector stroke

Injection stroke

Exhaust stroke

Answer

Correct Answer: Power stroke

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What is the name of the cargo carried by the rocket?

Cargo

Fuel

Payload

Payload plus cargo

Answer

Correct Answer: Payload

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How long does the intake stroke last?

The piston moves away from the piston head

The intake stroke lasts the same amount of time as the compression stroke

The intake valve opens and the cylinder fills with air

The intake stroke lasts twice as long as the compression stroke

Answer

Correct Answer: The piston moves away from the piston head

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What is the device that creates a hot exhaust gas that was passed through a nozzle to produce thrust?

Turbine

Jet engine

Rocket engine

Gas turbine

Answer

Correct Answer: Gas turbine

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A device that creates a hot exhaust gas that was passed through a what to produce thrust?

Turbine

Jet engine

Rocket engine

Nozzle

Answer

Correct Answer: Nozzle

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What does the exhaust stroke do?

Expels the piston's motion through the cylinder

Purges the gas mixture in the chamber

Expels the burned gases from the chamber

Inhales new air into the chamber

Answer

Correct Answer: Expels the burned gases from the chamber

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How does the piston move back towards the cylinder head?

Expansion stroke

Intake stroke

Both compression and expansion strokes

Compression stroke

Answer

Correct Answer: Compression stroke

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The point on the surface of an object about which the object's surface area is centred is known as what?

Centre of Mass

Centroid

Centre of mass

Centre of pressure

Answer

Correct Answer: Centre of pressure

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What do thrust reversers do when an aircraft is landing?

Decrease power

Increase power

Decrease thrust

Slow

Answer

Correct Answer: Slow

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What is used to reverse the flow of air?

Thrust reverser

Emergency air brakes

Slider

Air brakes

Answer

Correct Answer: Thrust reverser

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What is defined as supersonic?

A sonic boom

Above the speed of sound

Below the speed of sound

Between the speed of sound and the speed of light

Answer

Correct Answer: Above the speed of sound

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What is defined as subsonic?

A sonic boom

Above the speed of sound

Below the speed of sound

Between the speed of sound and the speed of light

Answer

Correct Answer: Below the speed of sound

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What is the term used for the row of blades in a jet engine?

Nozzle

Piston

Stage

Turbine

Answer

Correct Answer: Stage

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What is on each side of the propeller?

Pylon

Hub

Blade

Wing

Answer

Correct Answer: Pylon

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What does the pylon connect to?

Wing

Tower

Runway

A transformer

Answer

Correct Answer: Wing

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What is the device at the rear of the exhaust duct?

Exhaust pipe

Pipe

Nozzle

Compressor

Answer

Correct Answer: Nozzle

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What's the name of the device that produces electrical power for an aircraft?

Battery

Generator

Fuel pump

Answer

Correct Answer: Generator

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At the rear of the engine, what structure discharges the hot air from the engine?

Cooling fan

Turbocharger

Exhaust pipe

Radiator

Answer

Correct Answer: Exhaust pipe

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What does the term "disc" refer to in the context of an engine?

The part of the engine that turns the rotors

The part of the engine that holds the rotating blades

The part of the engine that powers the vehicle

The part of the engine that turns the shaft

Answer

Correct Answer: The part of the engine that holds the rotating blades

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What type of deformation is creep?

Creep

Fracture

Compression

Plastic

Answer

Correct Answer: Plastic

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What process involves the gradual plastic deformation of a material?

Shear

Melt

Etch

Creep

Answer

Correct Answer: Creep

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What is the name of the hood that covers the engine?

Crusher

Canopy

Grill

CowlING

Answer

Correct Answer: CowlING

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What surrounds the engine?

Metal shroud

Air filter

Plastic cover

Plastic shroud

Answer

Correct Answer: Metal shroud

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What type of engine is the high-pressure section of a jet engine?

Combustor

Propeller

Core

Turbine

Answer

Correct Answer: Core

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What is a compressor made up of?

Air

Hoses

Spinning blades

Motor

Answer

Correct Answer: Spinning blades

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The compressor is the centre of what?

The powerplant

The turbine

The fan

The jet engine

Answer

Correct Answer: The jet engine

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What is the part of an engine that burns the mixture?

Fuel injection system

Combustion chamber

Injector

Exhaust pipe

Answer

Correct Answer: Combustion chamber

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What type of metal is used to make sculptures?

The process by which a piece of sculpted metal is produced by pouring molten metal

The process by which metal is shaped into the desired form

A metal that is not magnetic

A metal alloy is a combination of two or more other metals

The material from which a sculpture is made

Answer

Correct Answer: The process by which a piece of sculpted metal is produced by pouring molten metal

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What kind of engine does the carburetor work on?

Piston

Compressor

Gasoline engine

Gasoline

Answer

Correct Answer: Piston

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What is used on a piston engine to mix fuel and air?

INTAKE PIPE

CARBURETOR

PISTON

EXHAUST PIPE

Answer

Correct Answer: CARBURETOR

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What kind of material is aluminium?

Nonmetal

Sheet

Metal

Alloy

Answer

Correct Answer: Alloy

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What is the property of alloys?

They are strong

The ability to form a hard, solid surface

They are malleable

The mixture of two or more metals

The ability to resist corrosion

Answer

Correct Answer: The mixture of two or more metals

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What does an afterburner do to an engine?

Doubles the power

Reduces the fuel consumption

Increases the power

Causes the engine to overheat

Answer

Correct Answer: Doubles the power

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What device reacts to external mass?

Rocket

Raygun

Jet

Machine gun

Answer

Correct Answer: Jet

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What device creates thrust by expelling stored mass

Fan

Jet engine

Rocket

Helicopter

Answer

Correct Answer: Rocket

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A decrease in chamber pressure and thrust due to the Erosion of the nozzle results in what?

A small increase in nozzle cross-sectional area

A decrease in thrust

A large increase in nozzle cross-sectional area

A decrease in chamber pressure and thrust

Answer

Correct Answer: A small increase in nozzle cross-sectional area

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What type of change can be controlled through thrusters?

Orbit

Flight Velocity

Direction

Node Location

Speed

Answer

Correct Answer: Flight Velocity

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What is the purpose of Thrust Vector Control?

Controlling the speed and altitude of the aircraft

Deflection of the thrust direction

Control of the exhaust speed

Control of the engine inlet temperature

Answer

Correct Answer: Deflection of the thrust direction

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In what condition does the fuse prevent stray electrical currents from reaching the igniter?

Safe

Ignited

Inoperable

Armed

Answer

Correct Answer: Safe

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In the arm condition, what can be activated?

Pulser

Stimulator

Igniter

Mechanism

Answer

Correct Answer: Igniter

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What is the Safe and Arm Mechanism usually a?

Part of a firearm

A firearm

Complex electromechanical device

Powered armor

Custom built gun

Answer

Correct Answer: Complex electromechanical device

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What are applied to the outside of liquid propellant tanks or solid propellant motor cases to protect against excessive heat transfer from?

Radiators

External Thermal Protection

External Insulators

External Heat Sinks

Liquid Crystal Displays

Answer

Correct Answer: External Insulators

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What protects the case from reaching a high temperature?

Metal Sheets

External Insulators

Heatsink

Internal Insulators

Answer

Correct Answer: Internal Insulators

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What kind of material does the internal insulator have to be?

Low thermal conductivity

Low heat capacity

Low electrical resistance

High thermal conductivity

Answer

Correct Answer: Low thermal conductivity

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What material promotes grain adhesion?

The Adhesive

The Envelope

The Liquid

The Binder

Answer

Correct Answer: The Binder

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What does the Grain have?

It is the byproduct of milling flour and other grains

A kernel, a seed, or an element of bread dough

Perforations, Slots, Grooves, holes, or Port Areas

A cereal grain, a fruit, or a vegetable

Answer

Correct Answer: Perforations, Slots, Grooves, holes, or Port Areas

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What does the burning rate vary with?

Chamber pressure and the initial ambient temperature of the grain

Grain size and the type of fuel

Grain size and the amount of carbon in the feedstock

Grain temperature and the air-fuel ratio

The type of burner used

Answer

Correct Answer: Chamber pressure and the initial ambient temperature of the grain

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What are layers of non-burning materials glued to expose grain surfaces to stop them from burning?

Fuel

Inhibitors

Cap

Covers

Air

Answer

Correct Answer: Inhibitors

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What is the Burning Rate of a rocket?

Miles per hour

Kilometers per second

Inches per second

Answer

Correct Answer: Inches per second

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What is the oxidizer in solid rocket propellant?

Ammonium sulfate

Aluminum powder

Ammonium nitrate

Ammonium perchlorate

Nitrogen tetroxide

Answer

Correct Answer: Ammonium perchlorate

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What is used to prevent the case from becoming too hot?

A fan

A heater

A vent

Insulation

Answer

Correct Answer: Insulation

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What type of propellants does a Rocket Motor use?

Liquid

Gases

Propellants with Combustion

Gas

Solid

Answer

Correct Answer: Solid

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What does the Gas Generator generate when it is turned on?

Cold gases

Hot gases

Electricity

Gasoline

Answer

Correct Answer: Hot gases

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What type of system has propellants feed to the engine?

Rocket Motor

Jet engine

Reaction Engine

Turbopump System

Rocket

Answer

Correct Answer: Turbopump System

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What is the name of the process that removes liquid from the tanks when a rocket is pressurized?

Liquid Fuel System

Liquid Oxygen System

Liquid Hydrogen System

Vacuum System

Pressurized System

Answer

Correct Answer: Pressurized System

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What is the Feed Mechanism considered to be?

A Hybrid System

A Filter System

A Pressurized System

A System that Uses a Combination of Techniques

Answer

Correct Answer: A Pressurized System

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What type of nozzle thruster has?

Rotating

Converging-diverging

Fixed-angle

Fixed-position

Answer

Correct Answer: Converging-diverging

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What part of the engine is used to meter the propellants?

Turbine

Injector

Combustor

Exhaust

Compressor

Answer

Correct Answer: Injector

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What is the Thrust Chamber also called?

Thruster

Chamber

Engine

Answer

Correct Answer: Thruster

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What is used to move the liquids in the rocket engine?

Solid Propellant Rocket Engines

Gears

Jets

Piping and Valves

Pistons

Answer

Correct Answer: Piping and Valves

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What does the Power Source do?

Regulate the temperature of the liquid propellant

Extract air from the thrust chamber

Pump the liquids through the engine

Provide energy to the feed mechanism

Answer

Correct Answer: Provide energy to the feed mechanism

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What does the feed mechanism do?

Regulate the temperature of the liquid propellant

Extract air from the thrust chamber

Pump the liquids through the engine

Force the liquids into the thrust chamber

Answer

Correct Answer: Force the liquids into the thrust chamber

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What is used to store the propellants in Rocket Engine?

Tanks

Cans

Tubes

Canisters

Pipes

Answer

Correct Answer: Tanks

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What does a Rocket Engine usually contain?

Solid Rocket Motors

Thrust Chambers

Fuel Cells

Nozzles

Fuel Tanks

Answer

Correct Answer: Thrust Chambers

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What are the most popular type of Rocket Propulsion System?

Jet Propulsion System

Rocket Fuel,Rocket Motor

Rocket Motor,Rocket

Rocket Engine,Rocket Motor

Satellite Propulsion System

Answer

Correct Answer: Rocket Engine,Rocket Motor

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What does a Rocket Motor use?

Liquid propellants

Solid propellants

Gasoline

Answer

Correct Answer: Solid propellants

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What does a Rocket Engine use?

Liquid propellants

Solid propellants

Gasoline

Answer

Correct Answer: Liquid propellants

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What is the ratio of the liquid oxidizer flow rate divided by the liquid fuel flow rate?

Mixture Ratio

Burn Rate

Oxygen Flow Rate

Oxidizer to Fuel Ratio

Answer

Correct Answer: Mixture Ratio

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What is the temperature of a Cryogenic propellants when it is a gas?

Ambient temperatures

373 degrees Kelvin

-182 degrees Celsius

-196 degrees Celsius

-460 degrees Celsius

Answer

Correct Answer: Ambient temperatures

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What type of propellant requires energy to initiate combustion?

Gas

Liquid

Solid

Answer

Correct Answer: Liquid

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What type of propellant combination consists of a liquid fuel and a liquid oxidizer?

Bipropellants

Monopropellants

Hybrid propellants

Answer

Correct Answer: Bipropellants

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What can be defined as the thrust of an equivalent rocket propulsion system?

Expendable propellant

Velocity

Impulse

Height

Answer

Correct Answer: Impulse

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Where are exhaust gases accelerated and ejected?

A Tunnel

Inside a Rocket Engine

A Supersonic Nozzle

Outside a Rocket Engine

A Jet engine

Answer

Correct Answer: A Supersonic Nozzle

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What does the "high chamber pressure" in the combustion process refer to?

High velocity

High pressure

High temperature

Low temperature

Answer

Correct Answer: High temperature

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In what order did the various processes occur during the combustion process?

Low chamber pressure and low temperature

High chamber pressure and high temperature

Answer

Correct Answer: High chamber pressure and high temperature

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What is the name of the process that takes place in a furnace?

Condensation Process

Boiling Process

Thermal Process

Combustion Process

Oxidation Process

Answer

Correct Answer: Combustion Process

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What can be a Solid Propellant?

Its combustion chamber

Its nozzle

Liquid propellant

Solid fuel

Its grain

Answer

Correct Answer: Its combustion chamber

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What is the stored matter that is energized and ejected?

Combustion products

Propellant

Fuel

Armament

Answer

Correct Answer: Propellant

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What is used to measure the pressure in the combustion chamber of an operating rocket propulsion system?

Rocket Propulsion System Design Gross Weight

Static Pressure

Chamber Pressure

Exhaust Gas Temperature

Answer

Correct Answer: Chamber Pressure

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What type of propulsion uses propellant?

Chemical Rocket Propulsion

Electrical Rocket Propulsion

Solid Rocket Propellant

Solar Electric Propulsion

Thermal Rocket Propulsion

Answer

Correct Answer: Chemical Rocket Propulsion

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What type of locomotion is propelled by the use of rocket propulsion?

Sail

Electricity

Thrust

Ram

Steam

Answer

Correct Answer: Thrust

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What is a means of locomotion that produces thrust by ejecting matter?

Foot Flight

Jet Propulsion

Swimming

Rocket Propulsion

Wing Flight

Answer

Correct Answer: Rocket Propulsion

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