MCQOPTIONS
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MCQOPTIONS
This section includes 187 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
In a shaft shear stress intensity at a point is not |
| A. | Directly proportional to the distance from the axis |
| B. | Inversely proportional to the distance from the axis |
| C. | Inversely proportional to the polar moment of inertia |
| D. | Directly proportional to the applied torque |
| Answer» C. Inversely proportional to the polar moment of inertia | |
| 102. |
If a shaft is rotating N revolutions per minute with an applied torque T kg-m, the horse power being transmitted by the shaft, is |
| A. | 2 /550 |
| B. | 2 /750 |
| C. | 2 /4500 |
| D. | 2 /55 |
| Answer» D. 2 /55 | |
| 103. |
Which of the following is not the unit of work, energy and heat? |
| A. | kcal |
| B. | kg m |
| C. | kWhr |
| D. | hp |
| Answer» E. | |
| 104. |
At either end of a plane frame, maximum number of possible bending moments, are |
| A. | Zero |
| B. | One |
| C. | Two |
| D. | Three |
| Answer» B. One | |
| 105. |
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 |
| A. | 3/2 |
| B. | 15/24 |
| C. | 24/15 |
| D. | 2/3 |
| Answer» D. 2/3 | |
| 106. |
Forces are called concurrent when their lines of action meet in |
| A. | One point |
| B. | Two points |
| C. | Plane |
| D. | Perpendicular planes |
| Answer» B. Two points | |
| 107. |
If two forces acting at a joint are not along the straight line, then for the equilibrium of the joint |
| A. | One of the forces must be zero |
| B. | Each force must be zero |
| C. | Forces must be equal and of the same sign |
| D. | Forces must be equal in magnitude but opposite in sign |
| Answer» C. Forces must be equal and of the same sign | |
| 108. |
In actual machines |
| A. | Mechanical advantage is greater than velocity ratio |
| B. | Mechanical advantage is equal to velocity ratio |
| C. | Mechanical advantage is less than velocity ratio |
| D. | Mechanical advantage is unity |
| Answer» D. Mechanical advantage is unity | |
| 109. |
In a loaded beam, the point of contraflexure occurs at a section where |
| A. | Bending moment is minimum |
| B. | Bending moment is zero or changes sign |
| C. | Bending moment is maximum |
| D. | Shearing force is maximum |
| Answer» C. Bending moment is maximum | |
| 110. |
For keeping the stress wholly compressive the load may be applied on a circular column anywhere within a concentric circle of diameter |
| A. | d/2 |
| B. | d/3 |
| C. | d/4 |
| D. | d/8 |
| Answer» D. d/8 | |
| 111. |
The type of butt joints in common use, is: |
| A. | Single inverted V-butt joint |
| B. | Double V-butt joint |
| C. | Double U-butt joint |
| D. | Single V-butt joint |
| Answer» B. Double V-butt joint | |
| 112. |
Tangent of angle of friction is equal to |
| A. | Kinetic friction |
| B. | Limiting friction |
| C. | Angle of repose |
| D. | Coefficient of friction |
| Answer» E. | |
| 113. |
In the equation of virtual work, following force is neglected |
| A. | Reaction of any smooth surface with which the body is in contact |
| B. | Reaction of a rough surface of a body which rolls on it without slipping |
| C. | Reaction at a point or an axis, fixed in space, around which a body is constrained to turn |
| D. | All of the above |
| Answer» E. | |
| 114. |
joint of a frame is subjected to three tensile forces P, Q and R equally inclined to each other. If P is 10 tonnes, the other forces will be |
| A. | Q = 10 tonnes and R = zero |
| B. | R + 10 tonnes and Q = zero |
| C. | Q + R = 10 tonnes |
| D. | Q and R each is equal to 10 tonnes |
| Answer» E. | |
| 115. |
When equal and opposite forces applied to a body, tend to elongate it, the stress so produced, is called |
| A. | Shear stress |
| B. | Compressive stress |
| C. | Tensile stress |
| D. | Transverse stress |
| Answer» D. Transverse stress | |
| 116. |
During a tensile test on a ductile material |
| A. | Nominal stress at fracture is higher than the ultimate stress |
| B. | True stress at fracture is higher than the ultimate stress |
| C. | True stress at fracture is the same as the ultimate stress |
| D. | None of these |
| Answer» C. True stress at fracture is the same as the ultimate stress | |
| 117. |
The maximum resistance against rotation, is offered by the weld at a point |
| A. | Most distant |
| B. | Least distant |
| C. | At either end |
| D. | Centrally located |
| Answer» B. Least distant | |
| 118. |
The maximum bending moment due to a moving load on a simply supported beam, occurs |
| A. | At the mid span |
| B. | At the supports |
| C. | Under the load |
| D. | Anywhere on the beam |
| Answer» D. Anywhere on the beam | |
| 119. |
The unit of power in S.I. units is |
| A. | Newton meter |
| B. | Watt |
| C. | Joule |
| D. | Kilogram meter/sec |
| Answer» C. Joule | |
| 120. |
The maximum stress intensity due to a suddenly applied load is x-times the stress intensity produced by the load of the same magnitude applied gradually. The value of x is |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 1/2 |
| Answer» C. 3 | |
| 121. |
When loads are applied proportionately to a frame structure containing its members in one plane, the structure is called |
| A. | Grid frame |
| B. | Plane frame |
| C. | Space frame |
| D. | Truss frame |
| Answer» D. Truss frame | |
| 122. |
The angle which an inclined plane makes with the horizontal when a body placed on it is about to move down is known as angle of |
| A. | Friction |
| B. | Limiting friction |
| C. | Repose |
| D. | Kinematic friction |
| Answer» D. Kinematic friction | |
| 123. |
The ratio of the moments of resistance of a solid circular shaft of diameter D and a hollow shaft (external diameter D and internal diameter d), is |
| A. | D4/(D4 – d4) |
| B. | D3/(D3 – d3) |
| C. | (D4 – d4)/D4 |
| D. | (D3 – d3)/D3 |
| Answer» B. D3/(D3 – d3) | |
| 124. |
The coefficient of friction depends upon |
| A. | Nature of surfaces |
| B. | Area of contact |
| C. | Area of contact |
| D. | All of the above |
| Answer» B. Area of contact | |
| 125. |
A closely coiled helical spring of radius R, contains n turns and is subjected to an axial loadW. If the radius of the coil wire is r and modulus of rigidity of the coil material is C, the stress developed in the helical spring is |
| A. | WR/ 3 |
| B. | 2WR/ 3 |
| C. | 2WR/ 2 |
| D. | 4WR/ 2 |
| Answer» C. 2WR/ 2 | |
| 126. |
The coefficient of friction depends on |
| A. | Area of contact |
| B. | Shape of surfaces |
| C. | Strength of surfaces |
| D. | Nature of surface |
| Answer» E. | |
| 127. |
Center of gravity of a thin hollow cone lies on the axis at a height of |
| A. | One-fourth of the total height above base |
| B. | One-third of the total height above base |
| C. | One-half of the total height above base |
| D. | Three-eighth of the total height above the base |
| Answer» C. One-half of the total height above base | |
| 128. |
Which of the following is not a vector quantity? |
| A. | Weight |
| B. | Velocity |
| C. | Acceleration |
| D. | Force |
| Answer» B. Velocity | |
| 129. |
The value of Poisson’s ratio always remains |
| A. | Greater than one |
| B. | Less than one |
| C. | Equal to one |
| D. | None of these |
| Answer» C. Equal to one | |
| 130. |
In a bar of large length when held vertically and subjected to a load at its lower end, its ownweight produces additional stress. The maximum stress will be |
| A. | At the lower cross-section |
| B. | At the built-in upper cross-section |
| C. | At the central cross-section |
| D. | At every point of the bar |
| Answer» C. At the central cross-section | |
| 131. |
Which of the following is not the unit of distance? |
| A. | Angstrom |
| B. | Light year |
| C. | Micron |
| D. | Milestone |
| Answer» E. | |
| 132. |
The shear force on a simply supported beam is proportional to |
| A. | Displacement of the neutral axis |
| B. | Sum of the forces |
| C. | Sum of the transverse forces |
| D. | Algebraic sum of the transverse forces of the section |
| Answer» E. | |
| 133. |
The unit of work or energy in S.I. units is |
| A. | Newton |
| B. | Pascal |
| C. | Kilogram meter |
| D. | Joule |
| Answer» E. | |
| 134. |
A beam of length L supported on two intermediate rollers carries a uniformly distributed load on its entire length. If sagging B.M. and hogging B.M. of the beam are equal, the length of each overhang, is |
| A. | 0.107 L |
| B. | 0.207 L |
| C. | 0.307 L |
| D. | 0.407 L |
| Answer» C. 0.307 L | |
| 135. |
A pair of smith’s tongs is an example of the lever of |
| A. | Zeroth order |
| B. | First order |
| C. | Second order |
| D. | Third order |
| Answer» D. Third order | |
| 136. |
If Z and I are the section modulus and moment of inertia of the section, the shear force F and bending moment M at a section are related by |
| A. | F = My/I |
| B. | F = M/Z |
| C. | F = dM/dx |
| D. | F Mdx |
| Answer» D. F Mdx | |
| 137. |
In a three hinged arch, the shear force is usually |
| A. | Maximum at crown |
| B. | Maximum at springing |
| C. | Maximum at quarter points |
| D. | Varies with slope |
| Answer» C. Maximum at quarter points | |
| 138. |
If three forces acting in one plane upon a rigid body, keep it in equilibrium, then they must either |
| A. | Meet in a point |
| B. | Be all parallel |
| C. | At least two of them must meet |
| D. | All the above are correct |
| Answer» E. | |
| 139. |
If the rivets in adjacent rows are staggered and outermost row has only one rivet, the arrangement of the rivets, is called |
| A. | Chain riveting |
| B. | Zig-zag riveting |
| C. | Diamond riveting |
| D. | None of these |
| Answer» D. None of these | |
| 140. |
On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be |
| A. | Towards the wall at its upper end |
| B. | Away from the wall at its upper end |
| C. | Upwards at its upper end |
| D. | Downwards at its upper end |
| Answer» D. Downwards at its upper end | |
| 141. |
If two tensile forces mutually perpendicular act on a rectangular parallelepiped bar are equal, the resulting elongation of the pipe, is |
| A. | (P/E) (1 – m) |
| B. | (E/P) (m -1) |
| C. | (E/P) (1 – m) |
| D. | (P/E) (1 + m) |
| Answer» B. (E/P) (m -1) | |
| 142. |
If a rectangular beam measuring 10 × 18 × 400 cm carries a uniformly distributed load such that the bending stress developed is 100 kg/cm2. The intensity of the load per metre length, is |
| A. | 240 kg |
| B. | 250 kg |
| C. | 260 kg |
| D. | 270 kg |
| Answer» C. 260 kg | |
| 143. |
From a circular plate of diameter 6 cm is cut out a circle whose diameter is a radius of the plate. Find the e.g. of the remainder from the center of circular plate |
| A. | 0.5 cm |
| B. | 1.0 cm |
| C. | 1.5 cm |
| D. | 2.5 cm |
| Answer» B. 1.0 cm | |
| 144. |
Maximum deflection of a |
| A. | Cantilever beam carrying a concentrated load W at its free end is WL3/3EI |
| B. | Simply supported beam carrying a concentrated load W at mid-span is WL3/48EI |
| C. | Cantilever beam, carrying a uniformly distributed load over span is WL3/8EI |
| D. | All the above |
| Answer» E. | |
| 145. |
A triangular section having base b, height h, is placed with its base horizontal. If the shear stress at a depth y from top is q, the maximum shear stress is |
| A. | 3S/bh |
| B. | 4S/bh |
| C. | 4b/Sh |
| D. | 3b/bS |
| Answer» B. 4S/bh | |
| 146. |
A heavy ladder resting on floor and against a vertical wall may not be in equilibrium, if |
| A. | The floor is smooth, the wall is rough |
| B. | The floor is rough, the wall is smooth |
| C. | The floor and wall both are smooth surfaces |
| D. | The floor and wall both are rough surfaces |
| Answer» D. The floor and wall both are rough surfaces | |
| 147. |
A 8 metre long simply supported rectangular beam which carries a distributed load 45 kg/m. experiences a maximum fibre stress 160 kg/cm2. If the moment of inertia of the beam is 640 cm4, the overall depth of the beam is |
| A. | 10 cm |
| B. | 12 cm |
| C. | 15 cm |
| D. | 18 cm |
| Answer» B. 12 cm | |
| 148. |
Pick up the incorrect statement |
| A. | The cross-sectional area of the welded member is effective |
| B. | A welded joint develops strength of its parent metal |
| C. | Welded joints provide rigidity |
| D. | Welding takes more time than riveting |
| Answer» E. | |
| 149. |
Which of the following is a vector quantity? |
| A. | Energy |
| B. | Mass |
| C. | Momentum |
| D. | Angle |
| Answer» D. Angle | |
| 150. |
If all the dimensions of a bar are increased in the proportion n : 1, the proportion with which the maximum stress produced in the prismatic bar by its own weight, will increase in the ratio |
| A. | 1 : n |
| B. | n : 1 |
| C. | 1 : (1/n) |
| D. | 1 : n |
| Answer» C. 1 : (1/n) | |