Which law of motion is the principle behind rocket propulsion?
a) Newton’s First Law
b) Newton’s Second Law
c) Newton’s Third Law
d) Law of Universal Gravitation
What is the main function of a rocket nozzle?
a) To mix fuel and oxidizer
b) To expel exhaust gases at high velocity
c) To store propellant
d) To generate electricity
Which of the following is NOT a type of rocket fuel?
a) Liquid hydrogen
b) Solid propellant
c) Plasma gas
d) Hypergolic fuel
Which component of a rocket provides the thrust needed for liftoff?
a) Payload bay
b) Booster stage
c) Guidance system
d) Heat shield
Which space agency successfully landed the first humans on the Moon?
a) NASA
b) Roscosmos
c) ISRO
d) ESA
What is the primary advantage of a multi-stage rocket?
a) Reduces drag
b) Increases payload capacity
c) Uses only solid fuel
d) Requires less fuel
Which type of propulsion system is used in most modern spacecraft for long-duration space travel?
a) Solid rocket boosters
b) Ion propulsion
c) Nuclear propulsion
d) Ramjet engines
Which of the following is a reusable rocket developed by SpaceX?
a) Saturn V
b) Falcon 9
c) Atlas V
d) Voyager 1
Which part of a rocket protects the payload during launch?
a) Fairing
b) Nozzle
c) Combustion chamber
d) Thruster
What is the escape velocity required to leave Earth’s gravitational pull?
a) 3 km/s
b) 8 km/s
c) 11.2 km/s
d) 15 km/s
Which space probe was the first to leave the solar system?
a) Voyager 1
b) Apollo 11
c) Hubble Space Telescope
d) Sputnik 1
What is the main advantage of ion propulsion over chemical propulsion?
a) Higher thrust
b) Greater fuel efficiency
c) Faster acceleration
d) Lower power requirement
Which of the following is NOT a challenge for long-term space travel?
a) Microgravity effects on the human body
b) Radiation exposure
c) Fuel shortage
d) Faster-than-light travel
What is the purpose of a heat shield on a spacecraft?
a) To improve aerodynamics
b) To generate lift
c) To protect against extreme temperatures during re-entry
d) To store fuel
Which force must a rocket overcome to leave Earth’s atmosphere?
a) Centripetal force
b) Gravity
c) Friction
d) Magnetic force
Which of the following fuels is commonly used in liquid rocket engines?
a) Liquid hydrogen and liquid oxygen
b) Diesel and gasoline
c) Propane and butane
d) Nitrogen and helium
What is the primary challenge of using nuclear propulsion in space travel?
a) Low thrust output
b) Environmental concerns
c) Lack of fuel availability
d) High cost of development
Which of the following planets has been visited by a rover?
a) Venus
b) Mars
c) Mercury
d) Neptune
What does “gimbaling” refer to in rocket engines?
a) Fuel injection system
b) Adjusting the angle of the engine for steering
c) Increasing exhaust velocity
d) Heat dissipation method
Which spacecraft is the farthest human-made object from Earth?
a) Hubble Space Telescope
b) Voyager 1
c) Apollo 11
d) ISS
Which of the following is necessary for a rocket to function in space?
a) Air resistance
b) Oxidizer
c) Gravity
d) Wind resistance
What is the primary goal of the Artemis program?
a) Build a space hotel
b) Establish a permanent base on Mars
c) Return humans to the Moon
d) Study Saturn’s rings
What is a major advantage of solid rocket boosters?
a) They are reusable
b) They can be throttled easily
c) They provide high initial thrust
d) They require minimal cooling
Which company developed the Starship rocket for deep space travel?
a) NASA
b) SpaceX
c) Blue Origin
d) Boeing
What is the main purpose of a space station?
a) Serve as a launch pad for deep-space missions
b) Replace satellites
c) Test new rocket engines
d) Conduct long-term space research
What is the primary risk associated with spacewalks?
a) High-speed debris
b) Lack of oxygen
c) Fire hazards
d) Low temperatures
Which planet has the highest escape velocity in the solar system?
a) Earth
b) Jupiter
c) Mars
d) Saturn
Which of the following is a key benefit of space tourism?
a) Expands scientific research
b) Reduces Earth’s population
c) Replaces commercial airlines
d) Decreases space debris
Which material is commonly used for spacecraft thermal shielding?
a) Carbon fiber
b) Aluminum
c) Reinforced carbon-carbon
d) Steel
