MCQOPTIONS
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MCQOPTIONS
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.
| 301. |
The ends of a string weighing w/metre are attached to two points at the same horizontal level. If the central dip is very small, the horizontal tension of the string throughout is |
| A. | wl/4d |
| B. | wl²/4d |
| C. | wl²/8d |
| D. | wl²/16d |
| Answer» D. wl¬¨‚â§/16d | |
| 302. |
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 |
| A. | 1.00 m/sec |
| B. | 1.57 m/sec |
| C. | 3.14 m/sec |
| D. | 6.28 m/sec |
| Answer» D. 6.28 m/sec | |
| 303. |
The moment of inertia of a triangular section (base b, height h) about centroidal axis parallel to the base, is |
| A. | b³h/12 |
| B. | bh³/3 |
| C. | bh³/36 |
| D. | bh³/2 |
| Answer» D. bh¬¨‚â•/2 | |
| 304. |
If the angle between the applied force and the direction of motion of a body, is between 90° and 180°, the work done, is called# |
| A. | Virtual work |
| B. | Imaginary work |
| C. | Zero work |
| D. | Negative work |
| Answer» E. | |
| 305. |
The ratio of kinetic energy and potential energy of a simple harmonic oscillator, at a displacement equal to half its amplitude is given by |
| A. | 1 : 2 |
| B. | 1 : 1 |
| C. | 2 : 1 |
| D. | 3 : 1 |
| Answer» E. | |
| 306. |
Lami's theorem states that |
| A. | Three forces acting at a point are always in equilibrium |
| B. | If three forces acting on a point can be represented in magnitude and direction by the sides of a triangle, the point will be in the state of equilibrium |
| C. | Three coplanar forces acting at a point will be in equilibrium, if each force is proportional to the sine of the angle between the other two |
| D. | Three coplanar forces acting at a point will be in equilibrium if each force is inversely proportional to the sine of the angle between the other two |
| Answer» D. Three coplanar forces acting at a point will be in equilibrium if each force is inversely proportional to the sine of the angle between the other two | |
| 307. |
If two forces P and Q (P > Q) act on the same straight line but in opposite direction, their resultant, is |
| A. | P + Q |
| B. | P/Q |
| C. | Q/P |
| D. | P - Q |
| Answer» E. | |
| 308. |
It is observed that in a certain sinusoidal oscillation, the amplitude is linearly dependent on the frequency f. If the maximum velocity during the oscillation is V, then V must be proportional to |
| A. | f |
| B. | 1/f |
| C. | 1/f² |
| D. | f² |
| Answer» E. | |
| 309. |
One end of an elastic string of natural length ‘l’ 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# |
| A. | A simple harmonic motion |
| B. | A rectilinear motion with constant speed |
| C. | A damped oscillatory motion |
| D. | None of the above |
| Answer» B. A rectilinear motion with constant speed | |
| 310. |
The characteristic of a couple is: |
| A. | Algebraic sum of forces, constituting a couple is zero |
| B. | Algebraic sum of moments of forces, constituting a couple, about any point, is same |
| C. | A couple can be never the balanced by a single force |
| D. | All the above |
| Answer» E. | |
| 311. |
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 |
| A. | 20 m/sec |
| B. | 30 m/sec |
| C. | 40 m/sec |
| D. | 50 m/sec |
| Answer» C. 40 m/sec | |
| 312. |
A rod AB carries three loads of 30 N, 70 N and 100 N at distances of 20 mm, 90 mm and 150 mm respectively from A. Neglecting the weight of the rod, the point at which the rod will balance is |
| A. | 109.5 mm from A |
| B. | 119.5 mm from A |
| C. | 125.5 mm from A |
| D. | 132.5 mm from A |
| Answer» B. 119.5 mm from A | |
| 313. |
The torque produced by a force depends oni. the magnitude of the forceii. the direction of the forceiii. the point of application of the force relative to origin The correct answer is |
| A. | only (i) |
| B. | both (i) and (ii) |
| C. | both (i) and (iii) |
| D. | all (i), (ii) and (iii) |
| Answer» E. | |
| 314. |
On a mass ‘m’ describing a circular path of radius ‘r’, the centrifugal force# |
| A. | Acts tangentially to the circular path |
| B. | Acts towards the centre of rotation |
| C. | Acts away from the centre of rotation |
| D. | Is mw2r/g kgf |
| Answer» C. Acts away from the centre of rotation | |