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201.

For which of the following diameters a seam-less pipe of 3 mm wall thickness will be considered as a thin walled cylinder?

A.	30 mm	B.	60 mm
C.	80 mm	D.	90 mm
E.	All of the above

202.

A bolt of nominal diameter 33 mm having a safe tensile stress of 100 N/mm2 can safely carry a load of

A.	60 kN	B.	100 kN
C.	150 kN	D.	160 kN
E.	260 kN

203.

A mild steel bolt of net cross-sectional area 8.4 sq. cm, diameter 37 will be safe to take a tensile load of about

A.	30 tonnes	B.	40 tonnes
C.	50 tonnes	D.	60 tonnes
E.	75 tonnes

204.

A sheet metal 2 mm thick having a shear strength of 40 kg/cm2 is to receive a punch hole of 35 mm diameter. The force required to make the punching will be

A.	17,600 kg	B.	12,540 kg
C.	88 kg	D.	4400 kg
E.	2200 kg

205.

Which of the following statement is incorrect?

A.	At a hinge in a beam there is no bending moment but there is shear force	B.	In case of inclined loads horizontal components cause thrust in the beam
C.	Bending moment is maximum at a point where shear force is zero or where it changes deflection from positive to negative or vice versa	D.	The point where shear force is zero is known as the point of contraflexure
E.	None of the above

206.

Hooke's Law is valid within the limits of proportionality. The limit of proportionality depends on

A.	type of loading	B.	area of cross-section
C.	type of material	D.	hardness of material

207.

The light gauge steel structural members are usually

A.	hot rolled	B.	cold rolled
C.	casted	D.	riveted

208.

Secondary stresses may be set up in a frame due to any of the following reasons EXCEPT

A.	rigidity of the members	B.	ecentricity of connections
C.	self-weight of the members	D.	members not being straight

209.

The Young's modulus of elasticity of a material is twice its modulus of rigidity. The Poisson's ratio for the material will be

A.	Zero	B.	0.5
C.	1	D.	None of the above

210.

A form factor is introduced in the design of compressive members to represent the effect of

A.	local buckling	B.	voids
C.	grain orientation	D.	diagonal buckling