SSC JE Mechanical 2017- Daily Quiz 8

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Question 1

Which of the following is not an inversion of single slider crank mechanism.

• AOscillating Cylinder Engine
• BPendulum Engine
• CWhitworth Quick return
• DScotch yoke mechanism

Question 2

Which of the following metal is best suitable for extrusion either hot or cold ?

• AZinc
• BMagnesium
• CCopper
• DAluminum

Question 3

Which one of the following is the correct statement?
Streamline, path line and streak line are identical when the

• Aflow is steady.
• Bflow is uniform.
• Cflow velocities change steadily with time.
• Dflow is neither steady nor uniform.

Question 4

If the temperature of a solid surface changes from 27^oC to 627^oC, then its emissive power changes which ratio?

• A6 : 1
• B9 : 1
• C27 : 1
• D81 : 1

Question 5

Minimum number of teeth to avoid interference is for a pressure angle of

• A16
• B17
• C18
• D32

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