| 1. | In case of thick cylinders, the tangential stress across the thickness of cylinder is ? | |
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maximum at the outer surface and minimum at the inner surface
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maximum at the inner surface and minimum at the outer surface
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maximum at the inner surface and zero at the outer surface
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maximum at the outer surface and zero at the inner surface
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Report Question| 2. | The algebraic difference between the maximum limit and the basic size is called ? | |
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lower deviation
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upper deviation
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actual deviation
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mean deviation
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| 3. | For unequal width of butt straps, the thickness of butt straps are ? | |
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0.75 1 for wide strap on the inside and 0.625 r for narrow strap on the outside
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0.75 t for narrow strap on the inside and 0.625 t for wide strap on the outside
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0.75 t for both the straps on the inside and outside
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0.625 t for both the straps on the inside and outside
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| 4. | Which of the following statement is correct ? | |
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The distance from a point on one thread to the corresponding point on the next thread is called pitch
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The distance which a screw thread advances axially in one rotation of the nut is called lead
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In single start threads, lead is equal to pitch
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all of the above
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| 5. | The resistance to fatigue of a material ? | |
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elastic limit s measured by
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Young's modulus
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ultimate tensile strength
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endurance limit
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| 6. | A key way lowers ? | |
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the strength of the shaft
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the rigidity of the shaft
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both the strength and rigidity of the shaft
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the ductility of the shaft
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| 7. | In order to remove internal stresses produced by hardening the steel, the process usually adopted is ? | |
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tempering
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annealing
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normalising
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spheroidising
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| 8. | The shear stress at a point in a shaft subjected to a torque is ? | |
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directly proportional to the polar moment of inertia and to the distance of the point from the axis
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directly proportional to the applied torque and inversely proportional to the polar moment of inertia
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directly proportional to the applied torque and the polar moment of inertia
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inversely proportional to the applied torque and the polar moment of inertia
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| 9. | The objective of caulking in a riveted joint is to make the joint ? | |
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free from corrosion
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stronger in tension
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free from stress
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leak-proof
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| 10. | A tapered key which fits in a key way in the hub and is flat on the shaft, is known as ? | |
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feather key
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gib-head key
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wood ruff key
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flat saddle key
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