MCQOPTIONS
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MCQOPTIONS
This section includes 117 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. |
A hoop of radius 3 m weighs 100 kg. It rolls along a horizontal floor so that at its centre of mass has a speed of 200 mm/sec, . The work required to stop the hoop is______________? |
| A. | 2 J |
| B. | 4 J |
| C. | 6 J |
| D. | 8 J |
| Answer» C. 6 J | |
| 102. |
A heavy ladder resting on floor and against a vertical wall may not be in equilibrium if________________? |
| A. | floor is smooth and wall is rough |
| B. | floor is rough and wall is rough |
| C. | both floor and wall are rough |
| D. | both floor and wall are smooth |
| Answer» E. | |
| 103. |
A funicular polygon cannot be made to pass through___________________? |
| A. | one specified point |
| B. | two specified points |
| C. | three specified points |
| D. | more than three specified points |
| Answer» E. | |
| 104. |
A force P of 50 N and another force Q of unknown magnitude act at 90° to each other. They are balanced by a force of 130 N. The magnitude of Q is__________________? |
| A. | 60 N |
| B. | 80 N |
| C. | 100 N |
| D. | 120 N |
| Answer» E. | |
| 105. |
A flywheel of moment of inertia 20 kg-m” is acted upon by a tangential force of 5 N at 2 m from its axis, for 3 seconds. The increase in angular velocity in radian persecond is__________________? |
| A. | 1/2 |
| B. | 3/2 |
| C. | 2 |
| D. | 3 |
| Answer» C. 2 | |
| 106. |
A disc of mass 4 kg, radius 0.5m and moment of inertia 3 kg-m2 rolls on a horizontal surface so that its center moves with speed 5 m/see. Kinetic energy of the disc is ___________________? |
| A. | 50 J |
| B. | 150 J |
| C. | 200 J |
| D. | 400 J |
| Answer» D. 400 J | |
| 107. |
A cylinder will slip on an inclined plane of inclination 0 if the coefficient of static friction between plane and cylinder is_____________________? |
| A. | less than (1/3) tan 0 |
| B. | less than (2/3) tan 0 |
| C. | less than (1/3) sin 6 |
| D. | less than (2/3) sin 6 |
| Answer» B. less than (2/3) tan 0 | |
| 108. |
A cube on a smooth horizontal surface___________________? |
| A. | cannot be in stable equilibrium |
| B. | cannot be in neutral equilibrium |
| C. | cannot be in unstable equilibrium |
| D. | can be in any of these states |
| Answer» E. | |
| 109. |
A 2 m long ladder rests against a wall and makes an angle of 30° with the horizontal floor. Where will be the instantaneous center of rotation when the ladder starts slipping ?_x005F_x000D_1) 1.0 in from the wall_x005F_x000D_2) 1.732 m from the wall_x005F_x000D_3) 1.0 m above the floor_x005F_x000D_4) 1.732 m above the floor_x005F_x000D_The correct answer is? |
| A. | (1) and (3) |
| B. | (1) and (4) |
| C. | (2) and (3) |
| D. | (2) and (4) |
| Answer» E. | |
| 110. |
A circular disc rotates at n rpm. The angular velocity of a circular ring of same mass and radius as the disc and to have the same angular momentum is___________________? |
| A. | n rpm |
| B. | n/2 rpm |
| C. | n/4 rpm |
| D. | 2n rpm |
| Answer» C. n/4 rpm | |
| 111. |
A car goes round a curve of radius 100 m at 25 m/sec. The angle to the horizontal at which the road must be banked to prevent sideways friction on the car wheels is tan”1 x, where x is (Assume g = 10 m/sec2)_____________________? |
| A. | 3/8 |
| B. | 1/2 |
| C. | 9/5 |
| D. | 5/8 |
| Answer» E. | |
| 112. |
A cable loaded with 10 kN/m of span is stretched between supports in the same horizontal line 100 m apart. If the central dip is 10 m, then the maximum and minimum pull in the cable respectively are____________________? |
| A. | 1346.3 kN and 1500 kN |
| B. | 1436.2 kN and 1250 kN |
| C. | 1346.3 kN and 1250 kN |
| D. | 1436.2 kN and 1500 kN |
| Answer» D. 1436.2 kN and 1500 kN | |
| 113. |
A body is dropped from a height of 100 m and at the same time another body is projected vertically upward with a velocity of 10 m/sec. The two particles will____________________? |
| A. | never meet |
| B. | meet after 1 sec |
| C. | meet after 5 sec |
| D. | meet after 10 sec |
| Answer» E. | |
| 114. |
A block in the shape of a parallelopiped of sides lm x 2m x 3m lies on the surface. Which of the faces gives maximum stable block ? |
| A. | 1 m x 2 m |
| B. | 2 m x 3 m |
| C. | 1 m x 3m |
| D. | equally stable on all faces |
| Answer» C. 1 m x 3m | |
| 115. |
A ball is dropped from a height of 16 m on a horizontal floor. If it rebounds to a height of 9 m after striking the floor, the coefficient of restitution between ball and floor is_____________________? |
| A. | 1/4 |
| B. | 2/3 |
| C. | 3/4 |
| D. | 4/3 |
| Answer» D. 4/3 | |
| 116. |
A ball moving on a smooth horizontal table hits a rough vertical wall, the coefficient of restitution between ball and wall being 1/3. The ball rebounds at the same angle. The fraction of its kinetic energy lost is___________________? |
| A. | 1/3 |
| B. | 2/3 |
| C. | 1/9 |
| D. | 8/9 |
| Answer» E. | |
| 117. |
A 2 m long ladder rests against a wall and makes an angle of 30° with the horizontal floor. Where will be the instantaneous center of rotation when the ladder starts slipping ?1) 1.0 in from the wall2) 1.732 m from the wall3) 1.0 m above the floor4) 1.732 m above the floorThe correct answer is? |
| A. | (1) and (3) |
| B. | (1) and (4) |
| C. | (2) and (3) |
| D. | (2) and (4) |
| Answer» E. | |