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BARC OCES 2022 Quiz 2

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Question 1

If the temperature of the sun is doubled, the rate of energy received on earth will be increased by a factor of

Question 2

If the ratio of the length of a connecting rod to the crank radius increases then

Question 3

What is the number of nodes in a shaft carrying three rotors?

Question 4

For the fully developed laminar flow and heat transfer in a uniformly heated long circular tube, if the flow velocity is doubled and the tube diameter is halved, the heat transfer coefficient will be

Question 5

Determine the ratio of the buckling strength of a solid column to that of a hollow column of the same material having the same area of cross section. The internal diameter of the column is half of the external diameter. Both columns are identical length and are pinned or hinged at the ends:

Question 6

In an operation performed on a slender and long workpiece on a lathe machine, the workpiece may bend if not supported. To overcome this, it needs to be supported using.