What is the approximate number of species or compounds present in the exhaust for a solid propellant rocket engine?

100

200

Correct Answer : 50

Explanation : The number of compounds present in the exhaust for a solid propellant rocket engine or a liquid propellant rocket engine with additives can be 50 or more. But many of these chemical species are present in negligible amounts and can be ignored.

Recently Updated in Rocket Propulsion Questions

1-methyl-1, 2-dicyclopropyl cyclopropane is also called as _______

RP-1

Jet fuel

Syntin

Kerosene

Correct Answer : Option (C) : Syntin

Explanation : Syntin is a high-energy formulation briefly used in the upper stages of rockets developed by the Soviet Union. Its molecular formula is C₁₀H₁₆ and it is a mixture of 4 stereoisomers.

The fuel which releases the most energy per unit mass of combustion is ______

RP-1

LH₂

Kerosene

Methane

Correct Answer : Option (B) : LH₂

Explaination : Compared to hydrocarbon fuels, liquid hydrogen delivers most energy per unit mass of combustion. Any hydrocarbon fuel, when subjected to combustion produces more pollution than LH₂.

Which of the following fuels were used in the first stage of Titan I?

RP-1

RDX

HMX

None of the above

Correct Answer : Option (A) : RP-1

Explanation : RP-1 fuel is used in the first stage of Titan 1. Other than that, it was also used in the first stages of Saturn V, Energeia, Saturn I and IB etc. It is a cheaper and less explosive alternative to LH₂.