Herewith below we have shared more than MCQs in Engineering Mechanics of our Civil Engineering subject. This will be very useful to study MCQs in systematic Manner.
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 Answered
 Review

Question 1 of 265
1. Question
Select the correct statement

Question 2 of 265
2. Question
The following is in unstable equilibrium

Question 3 of 265
3. Question
In a lifting machine with efficiency 60%, an effort of 200 N is required to raise a load of 6 kN. The velocity ratio of the machine is

Question 4 of 265
4. Question
The member forces in a statically in determinate truss

Question 5 of 265
5. Question
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

Question 6 of 265
6. Question
A heavy ladder resting on floor and against a vertical wall may not be in equilibrium if

Question 7 of 265
7. Question
The maximum displacement of a particle executing S.H.M. corresponds to

Question 8 of 265
8. Question
A sphere and a cylinder having the same mass and radii start from rest and roll down the same inclined plane. Which body gets to the bottom first?

Question 9 of 265
9. Question
When a circular wheel rolls on a straight track, then the shape of body centrode and space centrode respectively are

Question 10 of 265
10. Question
The time period of a simple pendulum depends on
(i) Mass of suspended particle
(ii) Length of the pendulum
(iii) Acceleration due to gravity The correct answer is 
Question 11 of 265
11. Question
A light rope is loaded with many equal weights at equal horizontal intervals. The points of suspension on the rope lie on a

Question 12 of 265
12. Question
Free body diagram is an

Question 13 of 265
13. Question
The graphical method of determining the forces in the members of a truss is based on

Question 14 of 265
14. Question
In which of the following trusses, the method of substitution is required for determining the forces in all the members of the truss by graphic statics?

Question 15 of 265
15. Question
If the direction of projection bisects the angle between the vertical and the inclined plane, then the range of projectile on the inclined plane is

Question 16 of 265
16. Question
A particle executes a simple harmonic motion. While passing through the mean position, the particle possesses

Question 17 of 265
17. Question
The tension in a cable supporting a lift

Question 18 of 265
18. Question
The shape of a suspended cable under its own weight, is

Question 19 of 265
19. Question
The inherent property of a body which offers reluctance to change its state of rest or uniform motion, is

Question 20 of 265
20. Question
A particle is executing simple harmonic motion in a line 1.0 m long. If the time of one complete vibration is 1 sec, then the maximum velocity of the particle is

Question 21 of 265
21. Question
Pick up the correct statement from the following. The kinetic energy of a body

Question 22 of 265
22. Question
Three forces which act on a rigid body to keep it in equilibrium. The forces must be coplanar and

Question 23 of 265
23. Question
Coefficient of friction depends on

Question 24 of 265
24. Question
If a particle is projected inside a horizontal tunnel which is 554 cm high with a velocity of 60 m per sec, the angle of projection for maximum range, is

Question 25 of 265
25. Question
The maximum pull in a cable, carrying a uniformly distributed load and supported at two ends which are at the same level, is at

Question 26 of 265
26. Question
A stone is whirled in a vertical circle, the tension in the string, is maximum

Question 27 of 265
27. Question
At a given instant ship lA’ is travelling at 6 km/h due east and ship ‘B’ is travelling at 8 km/h due north. The velocity of ‘B’ relative to ‘A’ is

Question 28 of 265
28. Question
The ratio of the moment of inertia of a rectangle about its centroidal axis to the moment of inertia about its base, is

Question 29 of 265
29. Question
The angular speed of a car taking a circular turn of radius 100 m at 36 km/hr will be

Question 30 of 265
30. Question
Two particles have been projected at angles 64° and 45° to the horizontal. If the velocity of projection of first is 10 m/sec, the velocity of projection of the other for equal horizontal ranges is

Question 31 of 265
31. Question
The force polygon representing a set of forces in equilibrium is a

Question 32 of 265
32. Question
The centre of gravity of a homogenous body is the point at which the whole

Question 33 of 265
33. Question
A satellite moves in its orbit around the earth due to

Question 34 of 265
34. Question
The force acting on a point on the surface of a rigid body may be considered to act

Question 35 of 265
35. Question
For a nonconcurrent force system to be in equilibrium

Question 36 of 265
36. Question
A rod 5 m in length is moving in a vertical plane. When it is inclined at 60° to horizontal, its lower end is moving horizontally at 3 m/sec and upper end is moving in vertical direction. The velocity of its upper end, is

Question 37 of 265
37. Question
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

Question 38 of 265
38. Question
Parallelogram Law of Forces states, “if two forces acting simultaneously on a particle be represented in magnitude and direction by two adjacent sides of a parallelogram, their resultant may be represented in magnitude and direction by

Question 39 of 265
39. Question
The following factor affects the orbit of a satellite up to an altitude of 720 km from the earth’s surface

Question 40 of 265
40. Question
Two circular discs of same weight and thickness are made from metals having different densities. Which disc will have the larger rotational inertia about its central axis?

Question 41 of 265
41. Question
The masses of two balls are in the ratio of 2 : 1 and their respective velocities are in the ratio of 1 : 2 but in opposite direction before impact. If the coefficient of restitution is %, the velocities of separation of the balls will be equal to

Question 42 of 265
42. Question
A point subjected to a number of forces will be in equilibrium, if

Question 43 of 265
43. Question
A particle moves with a velocity of 2 m/sec in a straight line with a negative acceleration of 0.1 m/sec2. Time required to traverse a distance of 1.5 m, is

Question 44 of 265
44. Question
One Joule is equivalent to

Question 45 of 265
45. Question
The velocity of a moving body, is

Question 46 of 265
46. Question
The centre of gravity of a triangle is at the point where three

Question 47 of 265
47. Question
For perfectly elastic bodies, the value of coefficient of restitution is

Question 48 of 265
48. Question
A stone was thrown vertically upwards from the ground with a velocity of 50 m/sec. After 5 seconds another stone was thrown vertically upwards from the same place. If both the stones strike the ground at the same time, then the velocity with which the second stone was thrown should be (Assume g = 10 m/sec2)

Question 49 of 265
49. Question
A retarding force on a body does not

Question 50 of 265
50. Question
A cable loaded with 0.5 tonne per horizontal metre span is stretched between supports in the same horizontal line 400 m apart. If central dip is 20 m, the minimum tension in the cable, will be

Question 51 of 265
51. Question
The bending moment in an arch is proportional to

Question 52 of 265
52. Question
Joule is the unit of

Question 53 of 265
53. Question
The equation of motion of a particle starting from rest along a straight line is x = t3 – 3l2 + 5. The ratio of the velocities after 5 sec and 3 sec will be

Question 54 of 265
54. Question
If a set of given forces are such that their free vectors build a closed polygon, then

Question 55 of 265
55. Question
To double the period of oscillation of a simple pendulum

Question 56 of 265
56. Question
When a body in equilibrium undergoes an infinitely small displacement, work imagined to be done, is known as

Question 57 of 265
57. Question
A ball is dropped from a height of 2.25 m on a smooth floor and rises to a height of 1.00 m after the bounce. The coefficient of restitution between the ball and the floor is

Question 58 of 265
58. Question
If the resultant of two forces has the same magnitude as either of the force, then the angle between the two forces is

Question 59 of 265
59. Question
A ball which is thrown upwards, returns to the ground describing a parabolic path during its flight

Question 60 of 265
60. Question
A string of length 90 cm is fastened to two points ‘A’ and ‘B’ at the same level 60 cm apart. A ring weighing 120 g is slided on the string. A horizontal force ‘P7 is applied to the ring such that it is in equilibrium vertically below ‘fl7. The value of ‘P7 is:

Question 61 of 265
61. Question
A rigid body is in a stable equilibrium if the application of any force

Question 62 of 265
62. Question
A uniform rod 9 m long weighing 40 kg is pivoted at a point 2 m from one end where a weight of 120 kg is suspended. The required force acting at the end in a direction perpendicular to rod to keep it equilibrium, at an inclination 60° with horizontal, is

Question 63 of 265
63. Question
The instantaneous centre of a member lies at the point of intersection of two lines drawn at the ends of the member such that the lines are inclined to the direction of motion of the ends at

Question 64 of 265
64. Question
A flywheel of moment of inertia 20 kgm” 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 per second is

Question 65 of 265
65. Question
The phenomenon of collision of two elastic bodies takes place because bodies

Question 66 of 265
66. Question
The unit of Moment of Inertia of a body, is

Question 67 of 265
67. Question
The angle of friction is:

Question 68 of 265
68. Question
One Newton force, is

Question 69 of 265
69. Question
A simple pendulum of length ‘/’ has an energy ‘E’, when its amplitude is ‘A’. If the length of pendulum is doubled, the energy will be

Question 70 of 265
70. Question
A particle moving with a simple harmonic motion, attains its maximum velocity when it passes

Question 71 of 265
71. Question
Pick up the correct statement from the following:

Question 72 of 265
72. Question
A stone of mass 1 kg is tied to a string of length 1 m and whirled in a horizontal circle at a constant angular speed 5 rad/sec. The tension in the string is,

Question 73 of 265
73. Question
A ladder of weight ‘w’ rests against a smooth vertical wall, and rests on rough horizontal ground, the coefficient of friction between the ladder and the ground being 1/4. The maximum angle of inclination of the ladder to the vertical, if a man of weight ‘w’ is to walk to the top of it safely, is tan’1 x, where x is

Question 74 of 265
74. Question
For a selflocking machine, the efficiency should be

Question 75 of 265
75. Question
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

Question 76 of 265
76. Question
The forces which meet at one point and have their lines of action in different planes are called

Question 77 of 265
77. Question
A marble ball is rolled on a smooth floor of a room to hit a wall. If the time taken by the ball in returning to the point of projection is twice the time taken in reaching the wall, the coefficient of restitution between the ball and the wall, is

Question 78 of 265
78. Question
A system of coplanar forces acting on a rigid body can be reduced to

Question 79 of 265
79. Question
WilliotMohr diagram is used to determine deflection in

Question 80 of 265
80. Question
The Law of Polygon of Forces states that

Question 81 of 265
81. Question
A 49 kg lady stands on a spring scale in an elevator. During the first 5 sec, starting from rest, the scale reads 69 kg. The velocity of the elevator will be

Question 82 of 265
82. Question
The numbers of funicular polygons which can be drawn to pass through two specified points in the space diagram are

Question 83 of 265
83. Question
Periodic time of body moving with simple harmonic motion, is

Question 84 of 265
84. Question
A geostationary satellite is one which orbits the earth with a velocity of rotation of

Question 85 of 265
85. Question
The total time of collision and restitution of two bodies, is called

Question 86 of 265
86. Question
P’ is the force acting on a body whose mass is ‘m’ and acceleration is ‘f. The equation P – mf= 0, is known as

Question 87 of 265
87. Question
Two forces act an angle of 120°. If the greater force is 50 kg and their resultant is perpendicular to the smaller force, the smaller force is

Question 88 of 265
88. Question
The necessary condition of equilibrium of a body is:

Question 89 of 265
89. Question
Which of the following represents the state of neutral equilibrium?

Question 90 of 265
90. Question
The unit of force in C.G.S. system of units, is called

Question 91 of 265
91. Question
Pick up the incorrect statement from the following:

Question 92 of 265
92. Question
If the angular distance, 0 = 2t3 – 3t2, the angular acceleration at t = 1 sec. is

Question 93 of 265
93. Question
A heavy ladder resting on a floor and against a vertical wall may not be in equilibrium, if

Question 94 of 265
94. Question
If the tension in a cable supporting a lift moving upwards is twice the tension when the lift is moving downwards, the acceleration of the lift, is

Question 95 of 265
95. Question
Newton’s law of Collision of elastic bodies states that when two moving bodies collide each other, their velocity of separation

Question 96 of 265
96. Question
The angle of projection at which the horizontal range and maximum height of a projectile are equal to

Question 97 of 265
97. Question
The mechanical advantage of an ideal machine is 100. For moving the local through 2 m, the effort moves through

Question 98 of 265
98. Question
A ball moving with a velocity of 5 m/sec impinges a fixed plane at an angle of 45° and its direction after impact is equally inclined to the line of impact. If the coefficient of restitution is 0.5, the velocity of the ball after impact will be

Question 99 of 265
99. Question
If A is the amplitude of particle executing simple harmonic motion, then the total energy E of the particle is

Question 100 of 265
100. Question
According to Law of Triangle of Forces

Question 101 of 265
101. Question
The locus of the instantaneous centre of a moving rigid body, is

Question 102 of 265
102. Question
A 50 kg boy climbs up a 8 m rope in gymnasium in 10 sec. The average power developed by the boy is approximately

Question 103 of 265
103. Question
Minimum pull in a suspended cable with supports at two ends is equal to

Question 104 of 265
104. Question
Engineer’s units of force, is

Question 105 of 265
105. Question
A shell of mass 100 kg travelling with a velocity of 10 m/sec breaks into two equal pieces during an explosion which provides an extra kinetic energy of 20000 Joules. If the pieces continue to move in the same direction as before, then the speed of the faster one must be

Question 106 of 265
106. Question
The rate of change of displacement of a body with respect to its surrounding, is known

Question 107 of 265
107. Question
If the radius of the earth is 600 km the height of a mountain above sea level at the top of which a beat seconds pendulum at sea level, looses 27 seconds a day, is

Question 108 of 265
108. Question
If the horizontal range is 2.5 times the greatest height, the angle of projection of the projectile, is

Question 109 of 265
109. Question
If two forces are in equilibrium, then the forces must
(i) Be equal in magnitude
(ii) Be opposite in sense
(iii) Act along the same line The correct answer is 
Question 110 of 265
110. Question
A projectile is thrown at an angle ‘a’ to the horizontal with velocity V. It will have the maximum centripetal acceleration

Question 111 of 265
111. Question
The angles between two forces to make their resultant a minimum and a maximum respectively are

Question 112 of 265
112. Question
The piston of a steam engine moves with a simple harmonic motion. The crank rotates 120 r.p.m. and the stroke length is 2 metres. The linear velocity of the piston when it is at a distance of 0.5 metre from the centre, is

Question 113 of 265
113. Question
The angle which an inclined surface makes with the horizontal when a body placed on it is on the point of moving down, is called

Question 114 of 265
114. Question
Two shots fired simultaneously from the top and bottom of a vertical tower with elevations of 30° and 45° respectively strike a target simultaneously. If horizontal distance of the target from the tower is 1000 m, the height of the tower is

Question 115 of 265
115. Question
The angular speed of a car while taking a circular turn of radius 100 m at 36 km/hour, is

Question 116 of 265
116. Question
A particle is dropped from the top of a tower 60 m high and another is projected upwards from the foot of the tower to meet the first particle at a height of 15.9 m. The velocity of projection of the second particle is

Question 117 of 265
117. Question
At the instantaneous center, the velocity of the moving lamina at any instant is

Question 118 of 265
118. Question
If a body moves in such a way that its velocity increases by equal amount in equal intervals of time, it is said to be moving with

Question 119 of 265
119. Question
A number of forces acting simultaneously on a particle of a body

Question 120 of 265
120. Question
A stone is thrown up a slope of inclination 60° to the horizontal. At what angle to the slope must the stone be thrown so as to land as far as possible from the point of projection?

Question 121 of 265
121. Question
If a body is acted upon by a number of coplanar nonconcurrent forces, it may

Question 122 of 265
122. Question
If three rigid rods are hinged together to form a triangle and are given rotary as well as translatory motion, the number of instantaneous centres of the triangle, will be

Question 123 of 265
123. Question
From a circular plate of a diameter 6 cm is cut out a circle whose diameter is equal to the radius of the plate. The C.G. of the remainder from the centre of circular plate is at a distance of

Question 124 of 265
124. Question
If the gravitational acceleration at any place is doubled, the weight of a body, will

Question 125 of 265
125. Question
A pilot flies a small plane in a vertical loop of radius V. At the top of its trajectory he experiences weightlessness. If the acceleration due to gravity is ‘g’ the speed of the plane at the top of its trajectory would be

Question 126 of 265
126. Question
If a body is lying on a plane whose inclination with the horizontal is less than the angle of friction, then?
(i) A force is required to move the body upwards
(ii) A force is required to move the body downward
(iii) The body will not be in equilibrium The correct answer is 
Question 127 of 265
127. Question
The acceleration of a particle moving along the circumference of a circle with a uniform speed, is directed

Question 128 of 265
128. Question
Work may be defined as

Question 129 of 265
129. Question
A shell travelling with a horizontal velocity of 100 m/sec explodes and splits into two parts, one of mass 10 kg and the other of 15 kg. The 15 kg mass drops vertically downward with initial velocity of 100 m/sec and the 10 kg mass begins to travel at an angle to the horizontal of tan”1 x, where x is

Question 130 of 265
130. Question
A ball of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/sec hits an identical stationary ball ‘B’ on the table. If the impact is perfectly plastic, the velocity of the ball ‘B’ just after impact would be

Question 131 of 265
131. Question
The length of a Second’s pendulum, is

Question 132 of 265
132. Question
The following statement is one of the laws of Dynamic friction

Question 133 of 265
133. Question
Force polygon method is applicable for

Question 134 of 265
134. Question
The condition of equilibrium for any system of forces in a plane is

Question 135 of 265
135. Question
Varingon’s theorem of moment’s states

Question 136 of 265
136. Question
The characteristic of a couple is:

Question 137 of 265
137. Question
The displacement of a particle which moves along a straight line is given by S = 4t3 + 3t2 10 where ‘S’ is in meters and t is in seconds. The time taken by the particle to acquire a velocity of 18 m/sec from rest, is

Question 138 of 265
138. Question
Which one of the following statements is true?

Question 139 of 265
139. Question
A load of 500 kg was lifted through a distance of 13 cm. by an effort of 25 kg which moved through a distance of 650 cm. The velocity ratio of the lifting machine is

Question 140 of 265
140. Question
Instantaneous center is at infinity when the angular velocity is

Question 141 of 265
141. Question
When a body moves round a fixed axis, it has

Question 142 of 265
142. Question
A load of 500 kg was lifted through a distance of 13 cm. by an effort of 25 kg which moved through a distance of 650 cm. The efficiency of the lifting machine is

Question 143 of 265
143. Question
Newton’s Law of Motion is:

Question 144 of 265
144. Question
Time period and length of a second’s pendulum respectively are

Question 145 of 265
145. Question
The frequency of oscillation on moon as compared to that on earth, will be

Question 146 of 265
146. Question
The maximum velocity of a body vibrating with a simple harmonic motion of amplitude 150 mm and frequency 2 vibrations/sec, is

Question 147 of 265
147. Question
To attain the synchronous orbit, the launch of a satellite, is done from a place

Question 148 of 265
148. Question
Pick up the correct statement from the following. A rubber ball when strikes a wall rebounds but a lead ball of same mass and velocity when strikes the same wall, falls down

Question 149 of 265
149. Question
Two objects moving with uniform speeds are 5 m apart after 1 second when they move towards each other and are 1 m apart when they move in the same direction. The speeds of the objects are

Question 150 of 265
150. Question
A body of weight 14 g appears to weight 13 g when weighed by a spring balance in a moving lift. The acceleration of the lift at that moment was

Question 151 of 265
151. Question
The product of mass and velocity of a moving a body, is called

Question 152 of 265
152. Question
A body is said to move with Simple Harmonic Motion if its acceleration, is

Question 153 of 265
153. Question
An ordinate in a funicular polygon represents

Question 154 of 265
154. Question
A bullet weighing 200 g is fired horizontally with a velocity of 25 m/sec from a gun carried on a carriage which together with the gun weighs 100 kg. The velocity of recoil of the gun, will be

Question 155 of 265
155. Question
The ratio of the ranges on the inclined plane with motion upward and with motion downward for a given velocity, angle of projection will be

Question 156 of 265
156. Question
The resultant of two forces P and Q is R. If Q is doubled, the new resultant is perpendicular to P. Then,

Question 157 of 265
157. Question
A sphere is resting on two planes BA and BC which are inclined at 45° and 60° respectively with the horizontal. The reaction on the plane BA will be

Question 158 of 265
158. Question
A projectile is fired with a velocity of 100.3 m/sec. at an elevation of 60°. The velocity attained by the projectile when it is moving at a height of 100 m, is

Question 159 of 265
159. Question
A stone is thrown vertically upwards with a vertical velocity of 49 m/sec. It returns to the ground in

Question 160 of 265
160. Question
One end of an elastic string of natural length / and modulus X is kept fixed while to the other end is attached a particle of mass m which is hanging freely under gravity. The particle is pulled down vertically through a distance x, held at rest and then released. The motion is

Question 161 of 265
161. Question
If two forces acting at a point are in equilibrium, they must be equal in magnitude and their line of action must be along

Question 162 of 265
162. Question
The shape of a suspended cable for a uniformly distributed load over it is

Question 163 of 265
163. Question
Kinetic friction may be defined as

Question 164 of 265
164. Question
Ball’A’ of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/s hits an identical stationary ball ‘B’ on the table. If the impact is perfectly elastic, the velocity of the ball ‘B’ just after impact would be

Question 165 of 265
165. Question
A bullet weighing 10 gm moves with a velocity of l km/sec. Its kinetic energy is
(i) 5000 Nm
(ii) 5000 kg.m
(iii) 5000 J
The correct answer is 
Question 166 of 265
166. Question
A funicular polygon cannot be made to pass through

Question 167 of 265
167. Question
From a solid cylinder of height 8 cm and radius 4 cm, a right circular cone is scooped out on the same base and having the same height as that of the cylinder. The C.G. of the remainder is at a height of

Question 168 of 265
168. Question
A cube on a smooth horizontal surface

Question 169 of 265
169. Question
Two forces of 6 Newtons and 8 Newtons which are acting at right angles to each other, will have a resultant of

Question 170 of 265
170. Question
Rate of change of angular momentum is equal to

Question 171 of 265
171. Question
A Second’s pendulum gains 2 minutes a day. To make it to keep correct time its length

Question 172 of 265
172. Question
In a simple harmonic motion, the position of equilibrium is always

Question 173 of 265
173. Question
The centre of gravity of a quadrant of a circle lies along its central radius at a distance of