Civil Engineering11)In plastic analysis, the shape factor for rectangular section, is
1.5
Civil Engineering12)A truss containing j joints and m members, will be a simple truss if
m = 2j - 3
Civil Engineering13)The ratio of maximum shear stress to average shear stress of a circular beam, is
\(4 \over 3\)
Civil Engineering14)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 Engineering15)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 Physics16)An adiabatic process occurs in
isolated system
JEE Physics17)Three moles of an ideal gas expanded spontaneously into vacuum. The work done will be :
Zero
JEE Physics18)Hess's law is based on
law of conservation of energy
JEE Physics19)In order to decompose 9 g water 142.5 kJ heat is required. Hence, the enthalpy of formation of water is
- 285 kJ
JEE Physics20)If one mole of ammonia and one mole of hydrogen chloride are mixed in a closed container to form ammonium chloride gas, then
∆H < ∆U