Civil Engineering MCQ Quiz Hub

1. A portion of beam between two sections is said to be in pure bending, when there is
zero bending moment and constant shear force
zero binding moment and zero shear force
constant bending moment and zero shear force
constant bending moment and constant shear force

2. In a electrical strain gauge, the quantity measured to determine strain is
resistance
current
voltage
none of the above

3. Liming value of Poisson's ratio are
0 and 0.2
0 and 0.5
1 and – 0.5
– 1 and – 0.5

4. According to Robert Hooke, stress is proportional to strain upto
ultimate stress
yield point
elastic limit
proportionality limit

5. Endurance limit is
The maximum stress at which even a billion reversal of stress cannot cause failure of the material
The maximum stress a material can sustain for very long time
The maximum bending stress the material can take
The maximum stress a material can take under direct loading

6. The angle between the direction of maximum shear plane and maximum principal plane are
30°
40°
45°
50°

7. Kern of rectangular column is having _____ shape.
rectangular
triangular
square
diamond

8. In any beam, shear stress at extreme fibre and neutral axis are respectively
maximum and zero
zero and maximum
zero and zero
maximum and maximum

9. A bar of brass is enclosed in a steel tube and are rigidly fastened at both the ends. If the coefficient of thermal expansion of brass is more than that of the steel, when temperature rises, the nature of stresses developed are
tensile in both steel and brass bars
compressive in steel and tensile in brass bars
tensile in steel and compressive in brass bar
compressive in both steel and brass bars

10. The weakest section of a diagonal riveting, is the section which passes through
central row
one rivet hole of end row
first row
second row

11. A beam is said to be of uniform strength, if
bending stress is same at every section along its longitudinal axis
deflection is same throughout the beam
shear stress is same throughout the beam
B.M. is same throughout the beam

12. Shear force for a cantilever carrying a uniformly distributed load over its length, is
cubic parabola
parabola
rectangle
triangle

13. The shape of the bending moment diagram over the length of a beam, having no external load, is always
circular
cubical
linear
parabolic

14. In the analysis of thick cylinder, the assumption made is
the longitudinal strain is uniform across the section
the longitudinal stress distribution is uniform
tithe hoop stress distribuon is uniform
radial stress is negligible streradialss is negligible

15. Beam of uniform strength means
a beam with same maximum shear stress at all sections
a beam in which maximum bending stress is same at all sections
a beam subjected to same moment throughout
a beam with uniform cross section

16. In case of steel, the strain at yield point is
0.125%
0.0125%
12.50%
1.25%

17. The type of butt joints in common use, is
single V-butt joint
double V-butt joint
double U-butt joint
single inverted V-butt joint

18. The shear force on a simply supported beam is proportional to
algebraic sum of the transverse forces of the section
curvature of the neutral axis
displacement of the neutral axis
sum of the transverse forces

19. The effect of arching a beam, is
nothing on the bending throughout
to reduce the bending moment throughout
to increase the bending moment throughout
all the above

20. The resistance offered by a loaded section of a bar per unit area, is called
load
intensity of stress
strain
stress

21. Influence lines are drawn for structures
pin-jointed truss
statistically determinate
of any type
None of these

22. Stress in members of statically determinate simple frames can be determined by
graphical solution
method of sections
method of joints
all the above

23. Hooke's law states that stress and strain are
curvilinearly related
directly proportional
inversely proportional
none of these

24. The stress at which extension of a material takes place more quickly as compared to the increase in load, is called
elastic point
yielding point
breaking point
plastic point

25. Which one of the following is not the assumption in deriving Euler's theory for long columns?
the columns are having hinged ends only
the column fails by buckling alone
the column is initially straight and is loaded axially
the section of the column is uniform throughout

26. In a tension test on a bar, gauge length means
the length over which extension is measured
the length over which extensometer grips
grip to grip distance
none of the above

27. A leaf spring is a practical example of a beam of uniform strength since
it deflects uniformly
it absorbs shocks on the body uniformly
section modulus is varied in steps depending upon the moment
it consists of a number of leaves of same cross section

28. The property of a material by which it can be drawn to a smaller section, due to tension is called
elasticity
malleability
plasticity
ductility

29. In a bar of large length when held vertically and subjected to a load at its lower end, its own weigh produces additional stress. The maximum stress will be
at every point of the bar
at the central cross section
at the built in upper cross section
at the lower cross section

30. When two plates butt together and are riveted with two cover plates with two rows of rivets, the joint is known as
butt joint
lap joint
double riveted double cover butt joint
single riveted single cover butt joint

31. The distance between the centres of adjacent rivets in the same row, is called
pitch
lap
gauge
staggered pitch

32. A bending moment may be defined as
algebraic sum of the moments of all the forces on either side of the section
arithmetic sum of the forces on either side of the section
arithmetic sum of the moments of all the forces on either side of the section
none of these

33. An arch may be subjected to
bending moment and shear force
shear and axial force
thrust, shear force and bending moment
bending moment and axial force

34. The point of contraflexture occurs in
over hanging beams only
continuous beams only
cantilever beams only
all types of beams

35. The value of Poisson's ratio always remains
equal to one
greater than one
less than one
none of these

36. For the same height, the bottom width for no tension.
for triangular section is same as that of rectangular section
for triangular section is more than rectangular section
for rectangular section is more than triangular section
none of these

37. A long vertical member, subjected to an axial compressive load, is called
a stanchion
a tie
a strut
column

38. The maximum bending moment due to a moving load on a simply supported beam, occurs
anywhere on the beam
under the load
at the supports
at the mid span

39. If the stress in each cross section of a pillar is equal to its working stress, it is called
body of equal strength
body of equal section
body of equal
none of these

40. The property by which a body returns to its original shape after removal of the force, is called
malleability
ductility
elasticity
plasticity

41. The shape of the bending moment diagram over the length of a beam, carrying a uniformly increasing load, is always
linear
cubical
parabolic
circular

42. A reinforced concrete beam is assumed to be made of
isotropic material
homogeneous material
heterogeneous material
none of these

43. In case of steel, the factor of safety taken is
1.85
2.5
3.0
4 to 5

44. When a cast iron specimen is tested in tension its failure is
at right angles to the axial direction
by formation of cup and cone
at 30° to axial direction
at 45° to axial direction

45. Stress at any point in a material is defined as
resisting force per unit area
modulus elasticity times strain
load per unit area
none of the above

46. In a thin cylinder stress in _____ direction is negligible.
radial
circumferential
longitudinal
any

47. The minimum number of rivets for the connection of a gusset plate is
1
2
3
4

48. For a simply supported beam with a central load, the bending moment is
maximum at the centre
maximum at the supports
least at the centre
least at the supports

49. The materials which have the same elastic properties in all directions, are called
hard
homogeneous
isotropic
brittle

50. The deflection of any rectangular beam simply supported is
directly proportional to the cube of its length
inversely proportional to the cube of its depth
directly proportional to its weight
inversely proportional to its width

51. A diagram which shows the variation of the axial load for all sections of the span of a beam, is called
stress diagram
shear force diagram
bending moment diagram
thrust diagram

52. The key of graphic construction is the cancelling of pairs of
collinear components
equal components
opposite components
all the above

53. Elastic limit means
the stress remains the same but strain increases
limiting value of stress upto which if the material is stressed and then released, strain disappears completely
limiting value of stress upto which stress is proportional to strain
none of the above

54. The bending moment is maximum on a section where shearing force
is minimum
is maximum
changes sign
is equal

55. The moment diagram for a cantilever whose free end is subjected to a bending moment, will be a
cubic parabola
parabola
triangle
rectangle

56. The stress in the wall of a cylinder in a direction normal to its longitudinal axis, due to a force acting along the circumference is known as
circumferential stress
hoop stress
longitudinal stress
yield stress

57. Maximum shear stress in a beam of rectangular cross section is _____ times the average shear stress.
1.5
1.25
2.0
4.0

58. Linear strain is defined as
shortening per unit original length
change in length per unit original length
extension per unit original length
none of the above