Explore topic-wise MCQs in Rocket Propulsion.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Rocket Propulsion knowledge and support exam preparation. Choose a topic below to get started.

1.

Reaction control of the Space Shuttle is achieved using ________ thrusters.

A. 24
B. 48
C. 38
D. 34
Answer» D. 34
2.

For very short pulse duration of the thruster firing, the specific impulse is degraded by __________

A. 1-5%
B. 0.5-1%
C. 5-25%
D. 1-5%
Answer» D. 1-5%
3.

What is range of side force required by a ballistic missile during its final closing maneuver just before nearing in on the target?

A. 100-4500 N
B. 200-6000 N
C. 800-8000 N
D. 1000-18000 N
Answer» C. 800-8000 N
4.

___________ system determines the maneuver to be performed and _________ system sends command signals to specific thrusters for number of signals required.

A. Control; control
B. Guidance; guidance
C. Control; guidance
D. Guidance; control
Answer» E.
5.

A thruster firing repeatedly for 0.010 seconds each time followed by a pause of 0.020 seconds or 0.150 seconds is an example for __________

A. step input mode
B. pulsing mode
C. sinusoidal mode
D. ramp input mode
Answer» C. sinusoidal mode
6.

Which of the following modes of firing thrusters leads to pure modulation?

A. Pulsing mode
B. Step input mode
C. Ramp input mode
D. Sinusoidal mode
Answer» B. Step input mode
7.

For the application of pure torques in three directions, it requires ______ thrusters.

A. 6
B. 3
C. 12
D. 9
Answer» D. 9
8.

Reaction control systems produce larger thrust than auxiliary propulsion systems.

A. True
B. False
Answer» C.
9.

Rocket engines used for orbital adjustments are also called as _____________

A. boost propulsion system
B. primary propulsion system
C. auxiliary rockets
D. strap-on motors
Answer» D. strap-on motors
10.

What is the nature of thrusters and feed system for attitude control rocket engines?

A. small; common pressurized feed system
B. large; separate turbopump feed system
C. small; separate pressurized feed system
D. large; common turbopump feed system
Answer» B. large; separate turbopump feed system