MACHINE DESIGN QUIZ

Factor of safety for fatigue loading is the ratio of

Young's modulus to the ultimate tensile strength

Elastic limit to the yield point

Endurance limit to the working stress

Elastic limit to the working stress

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The taper on a rectangular sunk key is

1 in 16

1 in 32

1 in 100

1 in 48

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The rivet head used for boiler plate riveting is usually

Counter sunk head

Snap head

Pan Head

Conical head

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A tap bolt

Has pointed threads

Has both the ends threaded

Has head at one end and other end fits into a tapped hole in the other part to be joined

Has a head on one end and a nut fitted to the other

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For circumferential joint in boilers, the type of joint used is

Lap joint with one ring overlapping the other

Butt joint with single cover plate

Butt joint with double cover plate

Any one of the above

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The radial distance from the __________ to the clearance circle is called working depth.

Addendum circle

Pitch circle

None of these

Dedendum circle

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When carbon in the cast iron is principally in the form of graphite, the cast iron will be of

Grey colour

Brown colour

Yellow colour

White colour

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The shock absorbing capacity of a bolt can be increased by

Making shank diameter equal to core diameter of thread

Tightening it properly

Grinding the shank

Increasing shank diameter

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In second type of levers,

Fulcrum is in between the load and effort

Load is in between the fulcrum and effort

Effort is in between the fulcrum and load

None of these

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Slenderness ratio is the ratio of

Maximum size of column to minimum size of column

Effective length of column to width of column

Effective length of column to least radius of gyration of the column

Width of column to depth of column

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