Civil Engineering11)Principal planes are subjected to

Correct Option: A

normal stresses only

Civil Engineering12)In plastic analysis, the shape factor for a circular section, is

Correct Option: C

1.7

Civil Engineering13)In plastic analysis, the shape factor for rectangular section, is

Correct Option: B

1.5

Civil Engineering14)A truss containing

jjoints andmmembers, will be a simple truss if

Correct Option: A

*m* = 2*j* - 3

Civil Engineering15)The ratio of maximum shear stress to average shear stress of a circular beam, is

Correct Option: D

\(4 \over 3\)

Civil Engineering16)A rolled steel joist is simply supported at its ends and carries a uniformly distributed load which causes a maximum deflection of 10 mm and slope at the ends of 0.002 radian. The length of the joist will be,

Correct Option: D

16 m

Civil Engineering17)If

Qis load factor,Sis shape factor andFis factor of safety in elastic design, the following:

Correct Option: D

*Q = S x F*

JEE Physics18)An adiabatic process occurs in

Correct Option: C

isolated system

JEE Physics19)Three moles of an ideal gas expanded spontaneously into vacuum. The work done will be :

Correct Option: A

Zero

JEE Physics20)Hess's law is based on

Correct Option: B

law of conservation of energy

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