civil engineering MCQs – Page 277

Practise multiple-choice questions from civil engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

civil engineering Mcqs
5521. Tangent of angle of friction is equal to_________________?
comments icon0

A. angle of repose

B. friction force

C. limiting friction

D. kinetic friction

E. coefficient of friction
5522. Which of the following is the example of lever of first order________________?
comments icon0

A. pair of clinical tongs

B. all of the above

C. none of the above

D. arm of man

E. pair of scissors

5523. If n = number of members andy = number of joints, then for a perfect frame, n =_______________?
comments icon0

A. j-l

B. j-2

C. 2/-3

D. 2/ -4

E. /-2

5524. Which of the following is not the unit of energy________________?
comments icon0

A. watt hours

B. kcal

C. kg m x (m/sec)2

D. wattr

E. kg m

5525. According to principle of moments_________________?
comments icon0
A. if a system of coplanar forces is in equilibrium, then the algebraic sum of their moments about any point in their plane is zero

B. none of the above

C. positive and negative couples can be balanced

D. the algebraic sum of the moments of any two forces about any point is equal to moment of theiwesultant about the same point

E. if a system of coplanar forces is in equilibrium, then their algebraic sum is zero

5526. Which of the following is not a scalar quantity__________________?
comments icon0

A. mass

B. volume

C. density

D. time

E. acceleration
5527. 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__________________?
comments icon0

A. kinematic friction

B. limiting friction

C. static friction

D. repose

E. friction

5528. Which of the following do not have identical dimensions ?
comments icon0
A. Moment of a force and angular momentum

B. Torque and work

C. Torque and energy

D. Momentum and impulse

E. Kinetic energy and potential energy

5529. 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___________________?
comments icon0
A. 0.5 cm

B. 0.25 cm

C. 2.5 cm

D. 1.5 cm

E. 1.0 cm

5530. Center of percussion is______________?
comments icon0

A. point of suspension

B. the point of application of the resultant of all the forces tending to cause a body to rotate about a certain axis

C. the point of C.G.

D. the point in a body about which it can rotate horizontally and oscillate under the influence of gravity

E. the point of metacentre

5531. Pick up the incorrect statement from the following _______________?
comments icon0

A. The C.G. of a rectangle is at the inter-section of its diagonals

B. The C.G. of a circle is at its center

C. The C-G. of an ellipse is at its center

D. The C.G. of a triangle is at the intersection of its medians

E. The C.G. of a semicircle is at a distance of r/2 from the center
5532. A particle moves along a straight line such that distance (x) traversed in t seconds is given by x = t2 (t 4), the acceleration of the particle will be given by the equation_________________?
comments icon0

A. 3t2-lt

B. 6f-4

C. 6t2-8t

D. 6f-8

E. 3t2+2t

5533. If three forces acting in different planes can be represented by a triangle, these will be in________________?
comments icon0

A. full equilibrium

B. unpredictable

C. non-equilibrium

D. none of the above

E. partial equilibrium

5534. Two coplanar couples having equal and op-posite moments_________________?
comments icon0

A. balance each other

B. are equivalent

C. produce a couple and an unbalanced force

D. produce a moment of couple

E. can not balance each other
5535. Dynamic friction as compared to static friction is________________?
comments icon0

A. has no correlation

B. same

C. more

D. less

E. may be less of more depending on nature of surfaces and velocity

5536. If a number of forces act simultaneously on a particle, it is possible_________________?
comments icon0

A. to replace them by a couple

B. to replace them by a single force through C.G.

C. not a replace them by a single force

D. to replace them by a couple and a force

E. to replace them by a single force
5537. A pair of smiths tongs is an example of the lever of__________________?
comments icon0

A. fourth order

B. second order

C. zeioth order

D. third order

E. first order

5538. According to principle of transmissibility of forces, the effect of a force upon a body is_______________?
comments icon0

A. minimum when it acts at the C.G. of the body

B. different at different points in its line of action

C. the same at every point in its line of action

D. maximum when it acts at the center of gravity of a body

E. none of the above

5539. According to law of triangle of forces______________?
comments icon0

A. three forces acting at a point will be in equilibrium

B. three forces acting at a point can be represented by a triangle, each side being proportional to force

C. none of the above

D. if three forces acting upon a patticle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium

E. if three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two

5540. If rain is falling in the opposite direction of the movement of a pedestrain, he has to hold his umbrella_________________?
comments icon0

A. less inclined when moving

B. more inclined when standing

C. more inclined when moving

D. less inclined when standing

E. none of the above