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SSC JE Mechanical 2017- Daily Quiz 19

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Question 1

The relation

for an irrotational flow is known as which one of the following?

Question 2

For the same indicated work per cycle, mean speed and permissible fluctuation of speed, what is the size of flywheel required for a multi-cylinder engine in comparison to a single-cylinder engine?

Question 3

The turbulent boundary layer thickness varies as

Question 4

For tool A, Taylor’s tool life exponent (n) is 0.45 and constant (k) is 90 Similarly for tool B, n = 0.3 and k = 60. The cutting speed (in m/min) above which tool A will have a higher tool life than tool B is ________.

Question 5

Rankine’s theory is valid to______.

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