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81.

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

B.	1
C.	2	D.	4

82.

A uniform beam of effective length L, fixed at one end and loaded uniformly will have maximum deflection at

A.	7/8 L from fixed end	B.	3/8 L from free end
C.	5/8 L from free end	D.	At free end

83.

In a beam where shear force is maximum the bending moment will be

A.	Maximum	B.	Zero
C.	Minimum	D.	There is no such relation between the two
E.	None of the above

84.

The deformation of any structure takes place in such a manner that the work of deformation is a minimum. This is known as

A.	Principle of least work	B.	Law of minimum energy
C.	Law of conservation of energy	D.	Principle of failure of structure
E.	None of the above

85.

The torsional resisting moment of the following section is being considered with identical characteristic parameter. Which section will have maximum torsional resisting moment

A.	Circular	B.	Hollow circular
C.	Square	D.	Triangular
E.	Hexagonal

86.

A circular section of steel 20 mm diameter is subjected to an axial force of 100 kg. The components of force normal and tangential to a plane inclined to the axis of bar will be

A.	141 kg	B.	100 kg
C.	80 kg	D.	70.7 kg
E.	54 kg

87.

The limit within which Hooke's law holds good is known as

A.	Elastic limit	B.	Plastic limit
C.	Yield point	D.	Eulers limit
E.	None of the above

88.

The percentage reduction of area during tensile test on a cast iron specimen may be

A.	Negligible	B.	5%
C.	10%	D.	25%
E.	50%

89.

The effective length of a column effectively held in position and restrained in direction at both ends will be

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

90.

Rivets are generally specified by

A.	Shape	B.	Diameter of head
C.	Overall length	D.	Thickness of plates to be joined
E.	Shank diameter