11)

Principal planes are subjected to

Civil Engineering

A)

normal stresses only

B)

tangential stresses only

C)

normal stresses as well as tangential stresses

D)

none of these

12)

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

Civil Engineering

A)

1.5

B)

1.6

C)

1.7

D)

1.75

13)

In plastic analysis, the shape factor for rectangular section, is

Civil Engineering

A)

1.4

B)

1.5

C)

1.6

D)

1.7

E)

1.8

14)

A truss containing j joints and m members, will be a simple truss if

Civil Engineering

A)

m = 2j - 3

B)

j = 2m - 3

C)

m = 3j - 2

D)

j = 3m - 2

15)

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

Civil Engineering

A)

\(2 \over 3\)

B)

\(3 \over 2\)

C)

\(3 \over 4\)

D)

\(4 \over 3\)

16)

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,

Civil Engineering

A)

10 m

B)

12 m

C)

14 m

D)

16 m

E)

18 m

17)

If Q is load factor, S is shape factor and F is factor of safety in elastic design, the following:

Civil Engineering

A)

Q = S + F

B)

Q = S - F

C)

Q = F - S

D)

Q = S x F

18)

An adiabatic process occurs in

JEE Physics

A)

open system

B)

closed system

C)

isolated system

 

D)

 in all the given system

19)

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

JEE Physics

A)

Zero

B)

Infinite

C)

3 Joules

 

D)

9 Joules

20)

Hess's law is based on

JEE Physics

A)

law of conservation of mass

B)

law of conservation of energy

C)

first law of thermodynamics

 

D)

None of the above