🚧 Civil Engineering Solved MCQs with Answers

Practice 1228 approved 🚧 Civil Engineering questions with verified answers from the 🛠️ Engineering Essentials subject for Pakistan exams.

1228 solved MCQs

According to ISI method of measurement, the order of the sequence isAnswer: Length, breadth, height The assumption on which the trapezoidal formula for volumes is based, isAnswer: All the above. The cross-sections for a highway is taken atAnswer: All the above. The detention period in a septic tank is assumedAnswer: 30 minutes The centre of gravity of a triangle is at the point where threeAnswer: medians of the triangle meet The forces which meet at one point and have their lines of action in different planes are calledAnswer: non-coplaner concurrent forces At a given instant ship A 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 isAnswer: 10 km/hrs The equation of motion of a particle starting from rest along a straight line is x = t³ - 3t² + 5. The ratio of the accelerations after 5 sec and 3 sec will beAnswer: 2 The locus of the instantaneous centre of a moving rigid body, isAnswer: centroid A projectile is thrown at an angle a to the horizontal with α velocity v. It will have the maximum centripetal accelerationAnswer: at the start The unit of Moment of Inertia of a body, isAnswer: m⁴ 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 withAnswer: a variable acceleration If the gravitational accelerational at any place is doubled, the weight of a body, willAnswer: be doubled 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 beAnswer: 500 tonnes at the centre 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 beAnswer: 6t + 2 The Law of Polygon of Forces states thatAnswer: if forces acting on a point can be represented of a polygon taken in order, their sides of a polygon taken in order, their resultant will be represented in magnitude and direction by the closing side of the polygon, taken in opposite order 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 byAnswer: the diagonal of the parallelogram which passes through the point of intersection of the forces" Which one of the following statements is true ?Answer: All of the above The product of mass and velocity of a moving a body, is calledAnswer: momentum Engineer's units of force, isAnswer: Newton in absolute units Joule is the unit ofAnswer: work The maximum velocity of a body vibrating with a simple harmonic motion of amplitude 150 mm and frequency 2 vibrations/sec, isAnswer: 1.885 m/sec If the tension in a cable supporting a lift moving upwards is twice the tension when the lift is movng downwards, the acceleration of the lift, isAnswer: g/3 One Newton force, isAnswer: 10⁵ dynes 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 1/2, the velocities of separation of the balls will be equal toAnswer: original velocity in the opposite direction The angle which an inclined surface makes with the horiontal when a body placed on it is on the point of moving down, is calledAnswer: angle of repose Work may be defined asAnswer: force x distance 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 beAnswer: 0.05 m/sec The tension in a cable supporting a liftAnswer: is less when the lift is moving downwards. A satellite moves in its orbit around the earth due toAnswer: Centripetal force