Q.1

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.2

The range within which a load can be applied on a rectangular column, to avoid any tensile stress, is

  • one-half of the base
  • one-third of the base
  • one-fourth of the base
  • one-fifth of the base
  • one sixth of the base on either side of centroid.
Q.3

Pick up the incorrect statement

  • The cross-sectional area of the welded member is effective
  • A welded joint develops strength of its parent metal
  • Welded joints provide rigidity
  • Welded joints have better finish
  • Welding takes more time than riveting.
Q.4

In a tension test, the yield stress iskg/cm2, in the octa hedral shear stress at the point is:

  • 100 2 kg/cm2
  • 150 2 kg/cm2
  • 200 2 kg/cm
  • 250 2 kg/cm2.
Q.5

The force in DB of the truss shown in below figure is

  • 3 W compression
  • W tension
  • 2 W compression
  • 5 W tension
  • 4 W tension.
Q.6

The ratio of the moment of inertia of a circular plate and that of a square plate for equal depth, is

  • less than one
  • equal to one
  • more than one
  • equal to 3π/16
  • none of these.
Q.7

The ratio of the maximum deflections of a beam simply supported at its ends with an isolated central load and that of with a uniformly distributed load over its entire length, is

  • 1
    128-6.72-1.png
    128-6.72-2.png
    128-6.72-3.png
    128-6.72-4.png
Q.8

In a beam, the neutral plane

  • may be its centre
  • passes through the C.G. of the area of cross-section
  • does not change during deformation
  • none of these.
Q.9

The force in DB of the truss shown in below figure is

  • 3 W compression
  • W tension
  • 2 W compression
  • 5 W tension
  • 4 W tension.
Q.10

If a rectangular beam measuringxxcm carries a unformly distributed load such that the bending stress developed iskg/cm2. The intensity of the load per metre length, is

  • 240 kg
  • 250 kg
  • 260 kg
  • 270 kg
  • 280 kg.
Q.11

The shape of the bending moment diagram over the length of a beam, carrying a uniformly distributed load is always

  • linear
  • parabolic
  • cubical
  • circular.
Q.12

A rectangular beamcm wide is subjected to a maximum shearing force ofkg, the corresponding maximum shearing stress beingkg/cm2. The depth of the beam is

  • 15 cm
  • 20 cm
  • 25 cm
  • 30 cm.
Q.13

The shape of the bending moment diagram over the length of a beam, carrying a uniformly distributed load is always

  • linear
  • parabolic
  • cubical
  • circular.
Q.14

A rectangular beamcm wide is subjected to a maximum shearing force ofkg, the corresponding maximum shearing stress beingkg/cm2. The depth of the beam is

  • 15 cm
  • 20 cm
  • 25 cm
  • 30 cm.
Q.15

If the shear force along a section of a beam is zero, the bending moment at the section is

  • zero
  • maximum
  • minimum
  • average of maximum-minimum
  • none of these.
Q.16

If the shear force along a section of a beam is zero, the bending moment at the section is

  • zero
  • maximum
  • minimum
  • average of maximum-minimum
  • none of these.
Q.17

The force in member U2L2 of the truss shown in below figure, is

  • 10 T tension
  • 10 T compression
  • zero
  • 15 T compression.
Q.18

As compared to uniaxial tension or compression, the strain energy stored in bending is only

Q.19

The ratio of strengths of solid to hollow shafts, both having outside diameter D and hollow having inside diameter D/in torsion, is

  • 1/4
  • 1/2
  • 1/16
  • 15/16
  • 3/8
Q.20

The ratio of strengths of solid to hollow shafts, both having outside diameter D and hollow having inside diameter D/in torsion, is

  • 1/4
  • 1/2
  • 1/16
  • 15/16
  • 3/8
Q.21

The weakest section of a diamond riveting, is the section which passes through

  • first row
  • second row
  • central raw
  • one rivet hole of end row.
Q.22

In a loaded beam, the point of con-traflexture occurs at a section where

  • bending moment is minimum
  • bending moment is zero or changes sign
  • bending moment is maximum
  • shearing force is maximum
  • shearing force is minimum.
Q.23
Limiting force of friction is the
  • Tangent of angle between normal reaction and the resultant of normal reaction and limiting friction
  • Ratio of limiting friction and normal reaction
  • The friction force acting when the body is just about to move
  • The friction force acting when the body is in motion
Q.24
A pair of smith’s tongs is an example of the lever of
  • zeioth order
  • first order
  • second order
  • third order
Q.25
Two coplanar couples having equal and opposite moments
  • Balance each other
  • Produce a couple and an unbalanced force
  • Are equivalent
  • Produce a moment of couple
Q.26
The neutral axis of the cross-section a beam is that axis at which the bending stress is
  • zero
  • minimum
  • maximum
  • infinity
Q.27
A load which is spread over a beam in such a manner that it varies uniformly over the whole length of abeam is called uniformly __________ load.
  • distributed
  • varying
Q.28
Whenever a material is loaded within elastic limit, stress is __________ strain.
  • equal to
  • directly proportional to
  • inversely proportional to
  • All of above
Q.29
When two main plates are kept in alignment butting each other and riveted with cover plate on both sides of the main plates with two rows of rivets in each main plate, the joint is known as __________ double cover butt joint.
  • single riveted
  • double riveted
Q.30
The strain energy stored in a solid circular shaft subjected to shear stress (τ) is (where C = Modulus of rigidity for the shaft material)
  • x Volume of shaft
  • x Volume of shaft
  • x Volume of shaft
  • x Volume of shaft
0 h : 0 m : 1 s