Cryogenic Engine Quiz

Which country was the first to develop cryogenic rocket engines?

• India

• China

• Soviet Union

• United States

Answer explanation

The United States was the first country to develop cryogenic rocket engines.

What is the main application of cryogenic technology in big cities?

• Rocket Engine

• Electric power transmission

• Frozen food

• Blood banking

Answer explanation

The main application of cryogenic technology in big cities is for electric power transmission.

What is the most commonly used combination of cryogenic fuel and oxidizer in rocket engines?

• Liquid hydrogen and liquid oxygen

• Liquid ammonia and liquid chlorine

• Liquid nitrogen and liquid helium

• Liquid methane and liquid carbon dioxide

Answer explanation

The most commonly used combination of cryogenic fuel and oxidizer in rocket engines is liquid hydrogen and liquid oxygen.

What is the main advantage of a cryogenic rocket engine in terms of energy/mass ratio?

• Low efficiency

• High efficiency

• Medium efficiency

• No efficiency

Answer explanation

The main advantage of a cryogenic rocket engine in terms of energy/mass ratio is high efficiency.

What is the main disadvantage of cryogenic propellants in terms of storage and handling?

• Low density

• Toxicity

• Complex storage

• High temperature storage

Answer explanation

The main disadvantage of cryogenic propellants in terms of storage and handling is the complex storage required, which can be challenging and costly to maintain.

Which engine was used for the Chandrayaan-3 mission by India?

• RL10

• ATLAS V

• CE-20

• N1

Answer explanation

The correct engine used for the Chandrayaan-3 mission by India was CE-20.

What is the propellant used in the CE-20 engine?

• Liquid helium

• LOX/LH2

• Liquid methane

• Liquid nitrogen

Answer explanation

The propellant used in the CE-20 engine is LOX/LH2, a combination of liquid oxygen and liquid hydrogen.

What is the cycle configuration of the CE-20 engine?

• Full Flow Staged Combustion

• Expander Cycle

• Staged Combustion

• Gas Generator

Answer explanation

The cycle configuration of the CE-20 engine is Gas Generator, as it utilizes a gas generator cycle for its operation.

What is the thrust range of the CE-20 engine?

• 180–220kN

• 150–200kN

• 220–250kN

• 100–150kN

Answer explanation

The correct thrust range of the CE-20 engine is 180–220kN, as stated in the question.

What was the duration of the first hot test of the CE-20 engine at IPRC, Mahendragiri?

• 500 seconds

• 635 seconds

• 700 seconds

• 800 seconds

Answer explanation

The duration of the first hot test of the CE-20 engine at IPRC, Mahendragiri was 635 seconds, as mentioned in the answer choices.