Civil Engineering11)Principal planes are subjected to
normal stresses only
Civil Engineering12)In plastic analysis, the shape factor for a circular section, is
1.7
Civil Engineering13)In plastic analysis, the shape factor for rectangular section, is
1.5
Civil Engineering14)A truss containing j joints and m members, will be a simple truss if
m = 2j - 3
Civil Engineering15)The ratio of maximum shear stress to average shear stress of a circular beam, is
\(4 \over 3\)
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,
16 m
Civil Engineering17)If Q is load factor, S is shape factor and F is factor of safety in elastic design, the following:
Q = S x F
JEE Physics18)An adiabatic process occurs in
isolated system
JEE Physics19)Three moles of an ideal gas expanded spontaneously into vacuum. The work done will be :
Zero
JEE Physics20)Hess's law is based on
law of conservation of energy