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Discussion :: UPSC Civil Service Exam Questions - Section 2 (Q.No.4)

4. 

Which of the following assumptions are made in the analysis of jet impinging normally on a moving plate?
1. Friction between jet and plate is neglected
2. Flow is steady
3. Momentum of jet is unchanged
4. Plate moves at a constant velocity
Choose the correct answer using the codes given below :
[A]. 1, 2 and 4
[B]. 1, 2 and 3
[C]. 2, 3 and 4
[D]. 1, 3 and 4

Answer: Option C

Explanation:

No answer description available for this question.
Report errors
Ayush Sharma said: (May 5, 2016)  
Should momentum not be changed?

Because the force in the plate caused by a change in momentum.
Zen said: (Feb 18, 2017)  
The Correct answer is A.
Shwetha said: (Jan 20, 2018)  
A is correct.
M.J said: (Feb 22, 2021)  
A is the correct answer.
D Singh said: (Jul 15, 2021)  
Momentum changes so, the answer is A.

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