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91.

The size of hole drilled in plates for rivetting is

A.	Equal to the diameter of rivet shank	B.	Slightly smaller than the diameter of river shank
C.	1.5 to 2 mm smaller than the diameter of rivet for revets of 25 mm and above size	D.	1.5 to 2 mm large than the diameter of the rivet for rivets of 25 mm and above size
E.	None of the above

92.

Approximate horse power that can be transmitted by a shaft 60 mm dimeter at 180 rpm with permissible shear stress of 850 kg/cm2 would be

A.	30 - 35	B.	35 - 50
C.	50 - 60	D.	60 - 85
E.	85 - 95

93.

If the load at the free end of a cantilever beam is increased, the failure will occur

A.	At the free and	B.	At the centre
C.	At the support	D.	Any where between free end and centre
E.	Any where between free end and support

94.

For a thin longitudinal cylinder the ratio hoop stress/longitudinal stress is

A.	1	B.	2
E.	4

95.

An axial hoad is applied on a circular section of diameter D. If the same load is applied on hollow circular section with inner diameter D/2, the ratio of stress in two cases would be

A.	4?3	B.	1
C.	3?4

96.

The area around the centre of gravity of a cross-section within which any load applied will produce stress of only one sign throughout the entire cross-section, is known as

A.	Centroid	B.	Neutral zone
C.	Symmetrical	D.	Balance zone
E.	Kern

97.

An axial load P is applied on a circular section of diameter D. If the same load is applied on a hollow circular shaft with inner diameter as D/2, the ratio of stress in two cases would be

A.	4?3	B.	9?8
C.	1	D.	8?3
E.	3?4

98.

The units of true strain are

A.	cm/cm	B.	kg/cm
C.	kg-cm/cm	D.	Dirnensionless
E.	None of the above

99.

The effective length of a column effectively held in position and restrained in direction at one end but not held in position or restrained in direction at the other end would be

A.	L	B.	1.5 L
C.	2 L	D.	0.67 L
E.	0.85 L

100.

A column is known as short column if

A.	The length is more than 30 times the diameter	B.	Slenderness ratio is more than 120
C.	The length is less than 8 times the diameter	D.	The slenderness ratio is more than 32
E.	The length is 15 times the diameter