AMT (FINALS)

Question 1

This law states that for every action, there is an equal and opposite reaction

Answer 1

Newton’s reaction principle (Third law)

Question 2

This engine operates independently of the atmosphere

Answer 2

rocket engine

Question 3

This type of rockets are advantageous due to their simple design, with fewer moving parts

Answer 3

Solid-propellant rockets

Question 4

This engine requires forward motion to compress incoming air

Answer 4

ramjet

Question 5

This type of rocket, the combustion relies on fuel and oxidizer

Answer 5

liquid-propellant rocket

Question 6

Ramjet engines operates best at what speed

Answer 6

high speed

Question 7

Rocket engines primarily operate on the principle of

Answer 7

conservation of momentum

Question 8

are known for producing no exhaust

Answer 8

Electric propulsion system

Question 9

This engine combines characteristics of both rockets and jets

Answer 9

scramjet engine

Question 10

This type of rocket have a drawback in that they cannot be shut down once ignited

Answer 10

solid propellant rocket

Question 11

In space, a rocket engine is powered by

Answer 11

fuel and oxidizer

Question 12

Where does combustion in jet engine takes place

Answer 12

combustion chamber

Question 13

Where do ramjets depend for air compression

Answer 13

vehicle’s speed

Question 14

Electric thrusters uses what to generate energy

Answer 14

solar cells

Question 15

Ramjets are commonly used in what type of aircraft

Answer 15

high-speed aircraft

Question 16

This engine uses atmospheric oxygen as the oxidizer and functions best at high speeds

Answer 16

scramjet

Question 17

Scramjets differ from ramjets because they operate at

Answer 17

hypersonic speeds

Question 18

It provides the rocket engine oxygen for combustion

Answer 18

oxidizer

Question 19

What speed is the ramjet most efficient

Answer 19

supersonic speeds

Question 20

Why can the rocket engine operate in space

Answer 20

Does not rely on atmospheric oxygen

Question 21

A ramjet engine works on the principle of

Answer 21

supersonic air compression without moving parts

Question 22

Ramjets are efficient at ____, but less so at _____

Answer 22

• High speeds
• Lower speeds

Question 23

produce thrust in pulsating bursts

Answer 23

pulse jets

Question 24

is the part of a gas turbine that compresses incoming air

Answer 24

compressor

Question 25

are commonly used in low-cost weapons systems

Answer 25

pulse jet engines

Question 26

offer continuous and adjustable thrust, ideal for various applications

Answer 26

gas turbines

Question 27

provide extra thrust by injecting fuel into the exhaust gases

Answer 27

Afterburners

Question 28

are valued for their high power-to-weight ratio

Answer 28

gas turbine engines

Question 29

This type of engine are suited for low-speed regional flights

Answer 29

turboprop engines

Question 30

Most commercial airliners use what type of engine for efficiency

Answer 30

turbofan engines

Question 31

Thrust ratios in turbofan engines are measured by the

Answer 31

ratio of bypassed air to core air

Question 32

this engine transfer power to a shaft rather than producing direct thrust

Answer 32

turboshaft engines

Question 33

This engine can improve fuel efficiency by around 15%

Answer 33

Ultra-High Bypass engines

Question 34

Turboprop engines uses what to convert turbine rotation to drive a propeller

Answer 34

gearbox

Question 35

How do turbofan engines produce additional thrust

Answer 35

bypassing air around the engine core

Question 36

What engine were used in the V-1 flying bomb

Answer 36

pulse jet engines

Question 37

the primary fuel for gas turbine engines in aviation

Answer 37

Aviation kerosene

Question 38

Ramjet engine lacks what

Answer 38

compressor

Question 39

Turboprop engines typically operate in the ______ knot speed range.

Answer 39

250-400 knot speed

Question 40

primarily used in fighter jets for a quick thrust increase

Answer 40

afterburners

Question 41

What material often used in Ultra-High Bypass engine blades for weight reduction

Answer 41

Titanium composites

Question 42

This engine is characterized by open-rotor blades without a cowl

Answer 42

Unducted fan (UDF) engines

Question 43

primarily spin the turbine in gas turbine engines

Answer 43

High-pressure gases from combustion

Question 44

This type of engine is used to power helicopters

Answer 44

Turboshaft engines

Question 45

In high-bypass turbofan engines, a ______ increases overall fuel efficiency.

Answer 45

larger bypass ratio