For a rocket having 95% combustion efficiency, total chemical power of – McqOptions

MCQOPTIONS

1.	For a rocket having 95% combustion efficiency, total chemical power of 17MW, a mass flow rate of propellants of 15 kg/s, and effective jet exhaust velocity of 1443 m/s, find the internal efficiency of rocket propulsion.
A.	97%
B.	95%
C.	93%
D.	91%
Answer» B. 95%

Discussion

No Comment Found

Related MCQs

For a rocket having 95% combustion efficiency, total chemical power of 17MW, a mass flow rate of propellants of 15 kg/s, and effective jet exhaust velocity of 1443 m/s, find the internal efficiency of rocket propulsion.
Which of the following is not a way of losing energy in a chemical rocket?
If a propulsion system produces a thrust of 5 kN, exhaust velocity of 4500 m/s, and vehicle velocity of 3000 m/s, what is the power transmitted to the vehicle?
For a propulsive device, if power available is denoted by P1, power input by P2, combustion efficiency by e, then which of the following expression is correct?
Which of the following Is the maximum energy available per unit mass of chemical propellants?
What is the way of production of energy in a chemical rocket?
If a chemical rocket has a jet power of 18 MW, inert mass of 50 kg, a propellant mass of 1000 kg, then what is its specific power?
If the power of the jet is given to be 25 MW for a chemical rocket having a weight flow rate of 147 N/s, find out the vehicle s specific impulse.
For a constant gas ejection velocity (v) of 1440 m/s and a mass flow rate (m) of 15 kg/s, find the power of the jet (Pjet).
Which form of energy is most useful for propulsion?