Q.1.
The ratio of the section modulus of a square section of side B and that of a circular section of diameter D, is
Q.2.
If M, I, R, E, F, and Y are the bending moment, moment of inertia, radius of curvature, modulus of elasticity stress and the depth of the neutral axis at section, then
Q.3.
If M, I, R, E, F, and Y are the bending moment, moment of inertia, radius of curvature, modulus of elasticity stress and the depth of the neutral axis at section, then
Q.4.
The radius of gyration of a rectangular section (depth D, width B) from a centroidal axis parallel to the width is
Q.5.
The locus of the end point of the resultant of the normal and tangential components of the stress on an inclined plane, is
-
circle -
parabola -
ellipse -
straight line.
Q.6.
The deformation per unit length is called
- Strain
- Stress
- Bulk modulus
- Elasticity
Q.7.
What is the unit for stress?
- N/m2
- Nm
- N/m
- Nm2
Q.8.
The ratio of stress and strain is known as
- Modulus of elasticity
- Young's modulus
- Both a. and b.
- None of the above
Q.9.
The ability of the material to deform without breaking is called
- Elasticity
- Creep
- Plasticity
- Brittle
Q.10.
In a composite body, consisting of two different materials………..will be same in both materials.
- Stress
- Strain
- Both of the above
- None of these
Q.11.
Maximum shear stress theory for the failure of a material at the elastic limit, is known
- Guest's or Trecas' theory
- St. Venant's theory
- Rankine's theory
- Haig's theory
Q.12.
The limit beyond which the material does not behave elastically is known as
- Proportional limit
- Elastic limit
- Plastic limit
- Yield point
Q.13.
Shear stress causes
- Elongation
- Distortion
- Deformation
- Displacement
Q.14.
Flat spiral springs
- Consist of uniform thin strips
- Are supported at outer end
- Are wound by applying a torque
- All the above
Q.15.
When tensile stress is applied axially on a circular rod its
- diameter decreases and length increases
- diameter decreases
- length increases
Q.16.
The shape factor of standard rolled beam section varies from
- 1.10 to 1.20
- 1.20 to 1.30
- 1.30 to 1.40
- 1.40 to 1.50
Q.17.
The equivalent length of a column of length L, having both the ends hinged, is
- 2L
- L
- L/2
- L/√2
Q.18.
A shaft is subjected to bending moment M and a torque T simultaneously. The ratio of the maximum bending stress to maximum shear stress developed in the shaft, is
- M/T
- T/M
- 2M/ T
- 2T/M
Q.19.
Short column failure
- Crushing failure
- Buckling failure
Q.20.
When a bar is subjected to a change of temperature and its deformation is prevented, the stress induced in the bar is
- tensile stress
- compressive stress
- shear stress
- thermal stress
Q.21.
A simply supported beam A carries a point load at its mid span. Another identical beam B carries the same load but uniformly distributed over the entire span. The ratio of the maximum deflections of the beams A and B, will be
- 2/3
- 3/2
- 5/8
- 8/5
Q.22.
Slenderness ratio of a long column, is
- Area of cross-section divided by radius of gyration
- Area of cross-section divided by least radius of gyration
- Radius of gyration divided by area of cross-section
- Length of column divided by least radius of gyration
Q.23.
A close coil helical spring when subjected to a moment M having its axis along the axis of the helix
- It is subjected to pure bending
- Its mean diameter will decrease
- Its number of coils will increase
- All the above
Q.24.
A wall designed to resist the lateral displacement of soil or other materials
- Retaining wall
- Bearing wall
- Shear wall
Q.25.
A beam having both ends restrained against translation and rotation. The fixed ends transfer bending stresses, increase the rigidity of the beam and reduce its maximum deflection.
- Fixed end beam
- Deformation of a beam
- Cantilever beam
- Simple beam
Q.26.
In RC beams, which portion is under compression?
- Bottom
- Top
- Mid-span
- Middle thirds
Q.27.
Complex of columns, beams, girders, spandrels, and trusses connected to one another and to the columns anchored in a foundation
- Frame
- Skeletal
- Support
- Load bearing
Q.28.
A slight convex curvature intentionally built into beam, girder, or truss to compensate for an anticipated deflection
- Inflection point
- Camber of beam
- Deformation of beam
- Moment of beam
Q.29.
If the slab is permanently exposed to the ground, minimum concrete cover is ______ clear.
- 80 mm
- 75 mm
- 70 mm
- 65 mm
Q.30.
The length of a wire is increased by 1 mm on the application of a certain load. In a wire of the same material but of twice the length and half the radius, the same force will produce an elongation of
- 0.5mm
- 2mm
- 4mm
- 8mm