Explore topic-wise MCQs in Civil Engineering.

This section includes 314 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.

151.

__To attain the synchronous orbit, the launch of a satellite, is done from a place__

A. On equator
B. On 30° latitude
C. On 45° latitude
D. On the poles
Answer» B. On 30¬¨‚àû latitude
Discussion
152.

__Power developed by a torque, is__

A. 2πNT kg m/min
B. 2πNT/4500 h.p
C. 2πNT /60 watts
D. All the above
Answer» E.
Discussion
153.

__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 ?i. 1.0 in from the wallii. 1.732 m from the walliii. 1.0 m above the flooriv. 1.732 m above the floorThe correct answer is__

A. (i) and (iii)
B. (i) and (iv)
C. (ii) and (iii)
D. (ii) and (iv)
Answer» E.
Discussion
154.

__The resultant of the forces acting on a body will be zero if the body__

A. Rotates
B. Moves with variable velocity in a straight line
C. Moves along a curved path
D. Does not move at all
Answer» E.
Discussion
155.

__A projectile is thrown at an angle ‘α’ to the horizontal with velocity ‘v’. It will have the maximum centripetal acceleration__

A. At the start
B. At the top of the trajectory
C. As it strikes the ground
D. Elsewhere
Answer» B. At the top of the trajectory
Discussion
156.

__The velocity ratio of an inclined plane of inclination ‘θ’ with horizontal for lifting a load is__

A. sin θ
B. cos θ
C. tan θ
D. cosec θ
Answer» E.
Discussion
157.

__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__

A. Zero
B. 5 m/sec
C. 10 m/sec
D. None of these
Answer» B. 5 m/sec
Discussion
158.

__The total kinetic energy of a hoop of mass 2 kg and radius 4 m sliding with linear velocity 8 m/sec and angular velocity 5 radian/sec is__

A. 64 J
B. 400 J
C. 464 J
D. 89 J
Answer» D. 89 J
Discussion
159.

_When a body falls freely under gravitational force, it possesses$?

A. Maximum weight
B. Minimum weight
C. No weight
D. No effect on its weight
Answer» D. No effect on its weight
Discussion
160.

_The velocity ratio of the differential wheel and axle is$?

A. R/r1 - r2
B. 2R/r1
C. 3R/r1 - r2
D. 2R/r1 + r2
Answer» C. 3R/r1 - r2
Discussion
161.

_The maximum value of the horizontal range for a projectile projected with a velocity of 98 m/sec is$?

A. 98 m
B. 490 m
C. 980 m
D. 1960 m
Answer» D. 1960 m
Discussion
162.

_The angle of projection at which the horizontal range and maximum height of a projectile are equal to$?

A. 45°
B. tan-1 (2)
C. tan-‘ (4)
D. tan”1 (1/4)
Answer» D. tan‚Äö√Ñ√π1 (1/4)
Discussion
163.

_A square hole is made in a circular lamina, the diagonal of the square is equal to the radius of the circle as shown in below figure the shift in the centre of gravity is$?

A. r (π - 0.75)/(π - 0.5)
B. r (π - 0.25)/(π - 0.75)
C. r (π - 0.5)/(π - 0.75)
D. r (π - 0.5)/(π - 0.25)
Answer» B. r (≈ì√Ñ - 0.25)/(≈ì√Ñ - 0.75)
Discussion
164.

_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 ?$?

A. 15°
B. 30°
C. 45°
D. 75°
Answer» B. 30¬¨‚àû
Discussion
165.

_The following is in unstable equilibrium$?

A. A uniform solid cone resting on a generator on a smooth horizontal plane
B. A uniform solid cone resting on its base on a horizontal plane
C. A solid cube resting on one edge
D. A satellite encircling the earth
Answer» D. A satellite encircling the earth
Discussion
166.

_If the resultant of two forces has the same magnitude as either of the force, then the angle between the two forces is$?

A. 30°
B. 45°
C. 60°
D. 120°
Answer» E.
Discussion
167.

_Periodic time of body moving with simple harmonic motion, is$?

A. Directly proportional to its angular velocity
B. Directly proportional to the square of its angular velocity
C. Inversely proportional to the square of its angular velocity
D. Inversely proportional to its angular velocity
Answer» E.
Discussion
168.

_The C.G. of a right circular cone lies on its axis of symmetry at a height of$?

A. h/2
B. h/3
C. h/4
D. h/5
Answer» D. h/5
Discussion
169.

_The C.G. of a thin hollow cone of height ‘h’, above its base lies on the axis, at a height of$?

A. h/3
B. h/4
C. 2h/3
D. 3h/4
Answer» D. 3h/4
Discussion
170.

_The numbers of funicular polygons which can be drawn to pass through two specified points in the space diagram are$?

A. Zero
B. 1
C. 2
D. Infinity
Answer» E.
Discussion
171.

_Engineer's units of force, is$?

A. Newton in absolute units
B. Dyne in absolute units
C. Newton and dyne in absolute units
D. All the above
Answer» B. Dyne in absolute units
Discussion
172.

_Maximum efficiency of a screw jack for the angle of friction θ, is$?

A. sin θ/(1 + sin θ)
B. (1 - sin θ)/sin θ
C. (1 + sin θ)/(1 - sin θ)
D. (1 - sin θ)/(1 + sin θ)
Answer» E.
Discussion
173.

_A point subjected to a number of forces will be in equilibrium, if$?

A. Sum of resolved parts in any two directions at right angles, are both zero
B. Algebraic sum of the forces is zero
C. Two resolved parts in any two directions at right angles are equal
D. Algebraic sum of the moments of the forces about the point is zero
Answer» B. Algebraic sum of the forces is zero
Discussion
174.

_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$?

A. 1/4
B. 1/3
C. 3
D. 4
Answer» C. 3
Discussion
175.

_The reaction at the support B of the beam shown in below figure is$?

A. 1.6 t
B. 9.6 t
C. 8.5 t
D. 0.5 t
Answer» D. 0.5 t
Discussion
176.

_‘ω’ rad/sec is the angular velocity of a crank whose radius is ‘r’. If it makes θ° with inner dead centre and obliquity of the connecting rod ‘l’ is ‘ϕ’, the velocity v of the piston, is given by the equation$?

A. ω² (l cos ϕ + r sin ϕ tan θ)
B. ω² (l sin ϕ + r cos φ tan θ)
C. ω (l sin ϕ + r cos ϕ tan θ)
D. ω² (l sin ϕ - r cos θ tan ϕ)
Answer» D. ≈ì√¢¬¨‚⧠(l sin ≈ì√Ø - r cos ≈í‚àè tan ≈ì√Ø)
Discussion
177.

_Kinetic friction may be defined as$?

A. Friction force acting when the body is just about to move
B. Friction force acting when the body is in motion
C. Angle between normal reaction and resultant of normal reaction and limiting friction
D. Ratio of limiting friction and normal reaction
Answer» C. Angle between normal reaction and resultant of normal reaction and limiting friction
Discussion
178.

_A block in the shape of a parallelepiped of sides 1m √ó 2m √ó 3m lies on the surface. Which of the faces gives maximum stable block?$?

A. 1 m √ó 2 m
B. 2 m √ó 3 m
C. 1 m √ó 3 m
D. Equally stable on all faces
Answer» C. 1 m ‚àö√≥ 3 m
Discussion
179.

_A body is said to move with Simple Harmonic Motion if its acceleration, is$?

A. Always directed away from the centre, the point of reference
B. Proportional to the square of the distance from the point of reference
C. Proportional to the distance from the point of reference and directed towards it
D. Inversely proportion to the distance from the point of reference
Answer» D. Inversely proportion to the distance from the point of reference
Discussion
180.

_An ordinate in a funicular polygon represents$?

A. Shear force
B. Resultant force
C. Bending moment
D. Equilibrium
Answer» D. Equilibrium
Discussion
181.

_A particle moves along a straight line such that distance ‘x’ traversed in ‘t’ seconds is given by x = t²(t + 1), the acceleration of the particle, will be$?

A. 3t³ - 2t
B. 3t² + 2t
C. 6t - 2
D. 6t + 2
Answer» E.
Discussion
182.

_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.
Discussion
183.

_Cartesian form of the equation of catenary is$?

A. y = c cosh x/c
B. y = c sinh x/c
C. y = c tan x/c
D. y = c sin x/c
Answer» B. y = c sinh x/c
Discussion
184.

_Pick up the incorrect statement from the following:$?

A. The C.G. of a circle is at its centre
B. The C.G. of a triangle is at the intersection of its medians
C. The C.G. of a rectangle is at the intersection of its diagonals
D. The C.G. of a semicircle is at a distance of r/2 from the centre
Answer» E.
Discussion
185.

If g1 and g2 are the gravitational accelerations on two mountains A and B respectively, the weight of a body when transported from A to B will be multiplied by$?

A. g1
B. g2
C. g1/g2
D. g2/g1
Answer» E.
Discussion
186.

When a circular wheel rolls on a straight track, then the shape of body centrode and space centrode respectively are$?

A. Straight line and parabola
B. Straight line and circle
C. Circle and straight line
D. Circle and parabola
Answer» D. Circle and parabola
Discussion
187.

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$?

A. Rubber and lead balls undergo equal changes in momentum
B. Change in momentum suffered by lead ball is less that of rubber ball
C. Momentum of rubber ball is less than that of lead ball
D. None of these
Answer» E.
Discussion
188.

The unit of force in C.G.S. system of units, is called$?

A. Dyne
B. Newton
C. Kg
D. All the above
Answer» B. Newton
Discussion
189.

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:$?

A. 2 m/sec and 2 m/sec
B. 3 m/sec and 2 m/sec
C. 3 m/sec and 3 m/sec
D. 4 m/sec and 6 m/sec
Answer» C. 3 m/sec and 3 m/sec
Discussion
190.

The following is not a law of static friction:$?

A. The force of friction always acts in a direction opposite to that in which the body tends to move
B. The force of friction is dependent upon the area of contact
C. The force of friction depends upon the roughness of the surface
D. The magnitude of the limiting friction bears a constant ratio to the normal reaction between two surfaces
Answer» B. The force of friction is dependent upon the area of contact
Discussion
191.

In a lifting machine a weight of 5 kN is lifted through 200 mm by an effort of 0.1 kN moving through 15 m. The mechanical advantage and velocity ratio of the machine are respectively$?

A. 50 and 75
B. 75 and 50
C. 75 and 75
D. 50 and 50
Answer» B. 75 and 50
Discussion
192.

Pick up the correct statement from the following. The kinetic energy of a body$?

A. Before impact is equal to that after impact
B. Before impact is less than that after impact
C. Before impact is more than that after impact
D. Remain constant
Answer» D. Remain constant
Discussion
193.

Effect of a force on a body depends upon its$?

A. Direction
B. Magnitude
C. Position
D. All the above
Answer» E.
Discussion
194.

A uniform pyramid and a uniform prism of same height lie with their base on the surface. Which is more stable ?$?

A. pyramid
B. prism
C. both equally stable
D. none of the above
Answer» B. prism
Discussion
195.

A weight of 100 kg is supported by a string whose ends are attached to pegs ‘A’ and ‘B’ at the same level shown in below figure. The tension in the string is$?

A. 50 kg
B. 750 kg
C. 100 kg
D. 120 kg
Answer» D. 120 kg
Discussion
196.

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$?

A. Less than that on BC
B. More than that of BC
C. Equal to that on BC
D. None of these
Answer» C. Equal to that on BC
Discussion
197.

On a ladder resisting on a smooth ground and leaning against a rough vertical wall, the force of friction acts$?

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
Discussion
198.

The moment of inertia of a circular lamina of diameter ‘d’, about an axis perpendicular to the plane of the lamina and passing through its centre, is$?

A. π/64 (D⁴ + d⁴)
B. πd⁴/16
C. πd⁴/24
D. πd⁴/32
Answer» E.
Discussion
199.

A simple pendulum of length 1 has an energy E when its amplitude is A. If its amplitude is increased to 2A, the energy becomes$?

A. E
B. E/2
C. 2E
D. 4E
Answer» E.
Discussion
200.

The maximum velocity of a body vibrating with a simple harmonic motion of amplitude 150 mm and frequency 2 vibrations/sec, is$?

A. 188.5 m/sec
B. 18.85 m/sec
C. 1.885 m/sec
D. 0.18845 m/sec
Answer» D. 0.18845 m/sec
Discussion