41) The bending moment in a simple supported beam can be calculated with the help of influence line drawn for the following types of load
a) a single point load
b) a uniformly distributed load
c) a number of point loads
d) All of the above three
42) A 10 m long beam carries point loads. When SF diagram is drawn, there are two rectangles of 10 kN x 2 m side; one is starting from one end and above the base and other starting from the other end and below the base line. The BM at the centre of the beam is
a) 20 kNm
b) 30 kNm
c) 40 kNm
d) 50 kNm
43) If the modulus of elasticity is zero, the material is said to be
a) rigid
b) elastic
c) flexible
d) plastic
44) A rubber band is elongated to double its initial length, its true strain is
a) 0.500
b) 0.693
c) 1.00
d) 1.386
45) Cup –and-cone type fracture occurs in the case of
a) cast iron
b) round specimen of ductile metals
c) tough steel
d) soft brass
46) A prismatic beam has uniform
a) depth
b) width
c) strength
d) cross-section
47) The number of elastic constants for a completely anisotropic elastic material which follows Hooke’s law is
a) 2
b) 4
c) 21
d) 25
48) Two tie rods are connected, through a pin of a cross-sectional area of 40 mm2. If the tie rods carry a tensile load of 10 kN, the shear stress in the pin is
a) 125 Mpa
b) 250 Mpa
c) 500 Mpa
d) None of these
49) In stress-strain curve, the area upto elastic limit stress indicates which mechanical property?
a) Ductility
b) Strength
c) Resilience
d) None of these
50) In the case of pure bending, the beam will bend into an arc of a
a) circle
b) parabola
c) ellipse
d) hyperbola
Good Luck!!