Q.1

If b is the width of a plate joined by diamond riveting of diameter d, the efficiency of the joint is given by

Q.2

If b is the width of a plate joined by diamond riveting of diameter d, the efficiency of the joint is given by

Q.3

Columns of given length, cross-section and material have different values of buckling loads for different end conditions. The strongest column is one whose

  • one end is fixed and other end is hinged
  • both ends are hinged or pin jointed
  • one end is fixed and the other end entirely free
  • both the ends are fixed
  • none of the these.
Q.4

The radius of gyration of a rectangular section is not proportional to

  • square root of the moment of inertia
  • square root of the inverse of the area
  • square root of the moment of inertia divided by area of the section
  • none of these.
Q.5

When loads are applied proportionately to a frame structure containing its members in one plane, the structure is called

  • grid frame
  • plane frame
  • space frame
  • truss frame.
Q.6

Influence lines are drawn for structures

  • of any type
  • statically determinate
  • pin-jointed truss
  • none of these.
Q.7

A reinforced concrete beam is assumed to be made of

  • homogeneous material
  • heterogeneous material
  • isotropic material
  • none of these.
Q.8

A three-hinged arch is said to be :

  • statically determinate structure
  • statically indeterminate structure
  • a bent beam
  • none of these.
Q.9

The shear stress at any section of a shaft is maximum

  • at the centre of the section
  • at a distance r/2 from the centre
  • at the top of the surface
  • at a distance 3/4 r from the centre
  • none of these.
Q.10

A three-hinged arch is said to be :

  • statically determinate structure
  • statically indeterminate structure
  • a bent beam
  • none of these.
Q.11

The maximum twisting moment a shaft can resist, is the product of the permissible shear stress and

  • moment of inertia
  • polar moment of inertia
  • polar modulus
  • modulus of rigidly.
Q.12

The minimum number of rivets for the connection of a gusset plate, is

  • 1
  • 2
  • 3
  • 4
Q.13

A shaft turningr.p.m. is subjected to a torque ofkgm. Horse power transmitted by the shaft is

  • π
  • 10 π
  • π2
  • 1/π
Q.14

If the rivets in adjacent rows are staggered and outermost row has only one rivet, the arrangement of the rivets, is called

  • chain riveting
  • zig-zag riveting
  • diamond riveting
  • none of these.
Q.15

The region of the cross-section of a column in which compressive load may be applied without producing any tensile stress, is known as the core of the cross-section. In circular columns the radius of the core, is

  • one-half of the radius
  • one-third of the radius
  • one-quarter of the radius
  • one-fifth of the radius
  • one-sixth of the radius.
Q.16

If the width of a simply supported beam carrying an isolated load at its centre is doubled, the deflection of the beam at the centre is changed by

  • 1/2
  • 1/8
  • 2
  • 8
  • 4
Q.17

If the width of a simply supported beam carrying an isolated load at its centre is doubled, the deflection of the beam at the centre is changed by

  • 1/2
  • 1/8
  • 2
  • 8
  • 4
Q.18

For a simply supported beam with a central load, the bending moment is

  • least at the centre
  • least at the supports
  • maximum at the supports
  • maximum at the centre.
Q.19

A beam of length L is pinned at both ends and is subjected to a concentrated bending couple of moment M at its centre. The maximum bending moment in the beam is

  • M
  • M/2
  • M/3
  • ML/2
Q.20

In case of an eccentric loading on a bracket subjected to moment M, the tangential force developed in any rivet, at right angles to its radius vector r is

Q.21

A beam of length L is pinned at both ends and is subjected to a concentrated bending couple of moment M at its centre. The maximum bending moment in the beam is

  • M
  • M/2
  • M/3
  • ML/2
Q.22

A simply supported beam carrying a uniformly distributed load over its whole span, is propped at the centre of the span so that the beam is held to the level of the end supports. The reaction of the prop will be

  • half the distributed load
  • 3/8th the distributed load
  • 5/8th the distributed load
  • distributed load.
  • none of these.
Q.23

The shape of the bending moment diagram over the length of a beam, having no external load, is always

  • linear
  • parabolic
  • cubical
  • circular.
Q.24

A beam is said to be of uniform strength, if

  • B.M. is same throughout the beam
  • deflection is same throughout the beam
  • bending stress is same throughout the beam
  • shear stress is same throughout the beam
  • none of these.
Q.25

For a simply supported beam of length L, the bending moment M is described as M = a (x - x3/L2), 0 ≤ x < L; where a is a constant. The shear force will be zero at

  • the supports
  • x = L/2
  • x = L/3
  • x = L/3
Q.26

The shape of the bending moment diagram over the length of a beam, having no external load, is always

  • linear
  • parabolic
  • cubical
  • circular.
Q.27

For a given material Young's modulus isGN/m2 and modulus of rigidity isGN/m2. The value of Poisson's ratio is

  • 0.15
  • 0.20
  • 0.25
  • 0.30
  • 0.40
Q.28

The slenderness ratio of a vertical column of a square cross-section of 2.5 cm sides andcm length, is

  • 200
  • 240
  • 360
  • 416
  • 500
Q.29

If two forces acting at a joint are not along the straight line, then for the equilibrium of the joint

  • one of the forces must be zero
  • each force must be zero
  • forces must be equal and of the same sign
  • forces must be equal in magnitude but opposite in sign.
Q.30

A simply supported beam of span L carries a concentrated load W at its mid-span. The maximum bending moment M is

0 h : 0 m : 1 s