A rocket has a throat area of 10 mm2 and nozzle exit area of 25 mm2. – McqOptions

MCQOPTIONS

1.	A rocket has a throat area of 10 mm2 and nozzle exit area of 25 mm2. If the mass flow rate of its propellants is 2 kg/s, exit velocity is 30 m/s, and if exit pressure is twice the standard atmospheric pressure at sea level, what will be the total thrust?
A.	60 N
B.	62.53 N
C.	61.26 N
D.	65.06 N
Answer» C. 61.26 N

Discussion

No Comment Found

Related MCQs

If exhaust pressure is Pe and surrounding fluid pressure is Pa, what is the condition for the optimum expansion ratio of a rocket nozzle?
Consider a rocket engine A and a jet engine B. Which of them will have higher specific impulse?
Rocket A has twice the pressure thrust of rocket B while it has half the momentum thrust as that of B. If the momentum thrust of B is 5 times its pressure thrust, find the ratio of total thrust of A to B.
A rocket has a throat area of 10 mm2 and nozzle exit area of 25 mm2. If the mass flow rate of its propellants is 2 kg/s, exit velocity is 30 m/s, and if exit pressure is twice the standard atmospheric pressure at sea level, what will be the total thrust?
How does the total thrust vary with an extendable nozzle?
The rocket nozzle is usually so designed such that the exhaust pressure is ____ the ambient fluid pressure.
What will happen to thrust and specific impulse as the rocket is propelled to higher altitudes?
If Pe represents exit pressure and Pa represents the atmospheric pressure, what is the condition for a nozzle to be overexpanded?
In the expression of pressure thrust, what does the area (A) represent?
If the exit pressure is thrice the atmospheric pressure for a rocket A and if it is twice for rocket B, what will be the ratio of pressure thrust of rocket A to that of B?