civil engineering MCQs – Page 68

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 Review each marked answer and report any item that may be outdated or unclear.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
3351. A particle of mass 2 kg executes simple harmonic motion of frequency 6/71 Hz and amplitude 0.25 m. Its maximum kinetic energy is___________________?
comments icon0

A. 4.5 J

B. 18.0 J

C. 12.0 J

D. 9.0 J
3352. 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___________________?
comments icon0
A. E/2

B. E

C. 2E

D. 4E

3353. A projectile has maximum range of 40 m on a horizontal plane. If angle of projection is a and the time of flight is 1 second, then sin a must be about__________________?
comments icon0

A. 3-Jan

B. 1/4

C. 5-Jan

D. 2-Jan

3354. A flywheel of moment of inertia 20 kg-m 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 persecond is__________________?
comments icon0

A. 2-Jan

B. 3

C. 3/2

D. 2

3355. The angular speed of a car while taking a circular turn of radius 100m at 36 km/hour, is_______________?
comments icon0

A. 1 radian/sec

B. 1000 radian/sec

C. 0.1 radian/sec

D. 100 radian/sec

3356. When two forces, each equal to P, act at 90 to each other, then the resultant will be_____________?
comments icon0

A. P/V2

B. PV2

C. 2P

D. P

3357. 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_______________?
comments icon0

A. 119.5 mm from A

B. 109.5 mm from A

C. 132.5 mm from A

D. 125.5 mm from A

3358. If A is the amplitude of particle executing simple harmonic motion, then the total energy E of the particle is___________________?
comments icon0
A. proportional to A2

B. independent of A

C. proportional to A

D. proportional to 1/A2

3359. The dimensions of Gravitational Universal constant G are______________?
comments icon0

A. ML3T2

B. M-L2r2

C. M-L3r2

D. M-2L3T2

3360. Minimum potential energy of a system will be in the position of________________?
comments icon0
A. stable equilibrium

B. unstable equilibrium

C. neutral equilibrium

D. all of the above

3361. The ratio of the speed of a rolling cylinder to the speed of sliding cylinder is_______________?
comments icon0
A. less than 1

B. equal to 1

C. between 1 and 2

D. greater than 2

3362. A hoop of radius 3 m weighs 100 kg. It rolls along a horizontal floor so that at its centre of mass has a speed of 200 mm/sec, . The work required to stop the hoop is______________?
comments icon0

A. 6 J

B. 2 J

C. 4 J

D. 8 J

3363. 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___________________?
comments icon0

A. none of the above

B. a simple harmonic motion

C. a rectilinear motion with constant speed

D. a damped oscillatory motion

3364. Rate of change of angular momentum is equal to_______________?
comments icon0
A. torque

B. force

C. linear momentum

D. impulse

3365. A block in the shape of a parallelopiped of sides lm x 2m x 3m lies on the surface. Which of the faces gives maximum stable block ?
comments icon0

A. equally stable on all faces

B. 1 m x 3m

C. 1 m x 2 m

D. 2 m x 3 m
3366. 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_________________?
comments icon0

A. 1/f2

B. 1/f

C. f

D. f2
3367. The error due to eccentricity of inner and outer axes can be eliminated by________________?
comments icon0
A. reading both verniers and taking the mean of the two

B. taking both face observations and taking the mean of the two

C. double sighting

D. taking mean of several readings distributed over different portions of the graduated circle

3368. The graduations in prismatic compass_____________?
comments icon0

A. correct answer is ?

B. (1) and (4)

C. (2) and (3)

D. (2) and (4)

E. (1) and (3)
F. /strong> are inverted
3369. Size of a theodolite is specified by________________?
comments icon0
A. the diameter of lower plate

B. the diameter of upper plate

C. the diameter of vertical circle

D. the length of telescope

3370. Bowditch rule is applied to_________________?
comments icon0

A. an open traverse for graphical adjustment

B. a closed traverse for adjustment of closing error

C. determine the effect of local attraction

D. none of the above

3371. An imaginary line lying throughout the surface of ground and preserving a constant inclination to the horizontal is known as__________________?
comments icon0

A. horizontal equivalent

B. contour gradient

C. contour line

D. contour interval

3372. Select the incorrect statement?
comments icon0

A. The true meridian at any place is not variable

B. The true meridians at different places are parallel to each other

C. The maps prepared by national survey departments of any country are based on true meridians

D. The true meridians converge to a point in northern and southern hemispheres

3373. If the focal length of the object glass is 25 cm and the distance from object glass to the trunnion axis is 15 cm, the additive constant is_______________?
comments icon0

A. 0.1

B. 1.33

C. 0.6

D. 0.4
3374. The process of turning the telescope about the vertical axis in horizontal plane is known as______________?
comments icon0

A. plunging

B. swinging

C. reversing

D. transiting

3375. Which of the following errors is not eliminated by the method of repetition of horizontal angle measurement ?
comments icon0
A. error due to displacement of station signals

B. error due to eccentricity of verniers

C. error due to inaccurate graduation

D. error due to wrong adjustment of line of collimation and trunnion axis

3376. The methods used for locating the plane table stations are_______________?
comments icon0

A. radiation

B. correct answer is

C. traversing

D. ntersection

E. resection

3377. Which of the following errors cannot be eliminated by taking both face observations ?
comments icon0

A. error due to horizontal axis not being perpendicular to the vertical axis

B. index error i.e. error due to imperfect adjustment of the vertical circle vernier

C. error due to non-parallelism of the axis of telescope level and line of collimation

D. none of the above
3378. Direct method of contouring is_________________?
comments icon0

A. adopted for large surveys only

B. a quick method

C. suitable for hilly terrains

D. most accurate method
3379. For a line AB_______________?
comments icon0
A. the forebearing of AB and back bearing of AB differ by 180

B. the forebearing of AB and back bearing of BA differ by 180

C. both (A. and (B. are correct.

D. none is correct

3380. The difference of levels between two stations A and B is to be determined. For best results, the instrument station should be_______________?
comments icon0

A. closer to the lower station

B. as far as possible from the line AB

C. closer to the higher station

D. equidistant from A and B
3381. Subtense bar is an instrument used for _______________?
comments icon0
A. measurement of horizontal distances in undulated areas

B. levelling

C. measurement of angles

D. measurement of horizontal distances in plane areas

3382. The difference between a level line and a horizontal line is that_______________?
comments icon0
A. level line is a curved line while hori-zontal line is a straight line

B. level line is normal to plumb line while horizontal line may not be normal to plumb line at the tangent point to level line

C. horizontal line is normal to plumb line while level line may not be normal to the plumb line

D. both are same

3383. If the true bearing of a line AB is 269 30?, then the azimuth of the line AB is_____________?
comments icon0

A. 89 30?

B. 0 30?

C. 269 30?

D. 90 30?
3384. The suitable contour interval for a map with scale 1 : 10000 is______________?
comments icon0

A. 10 m

B. 2 m

C. 20 m

D. 5m

3385. Dumpy level is most suitable when______________?
comments icon0

A. fly levelling is being done over long distance

B. the instrument is to be shifted frequently

C. all of the above

D. many readings are to be taken from a single setting of the instrument
3386. If a tripod settles in the interval that elapses between taking a back sight reading and the following foresight reading, then the elevation of turning point will_________________?
comments icon0
A. increase

B. not change

C. decrease

D. either a or b

3387. If the staff is not held vertical at a levelling station, the reduced level calculated from the observation would be_______________?
comments icon0

A. none of the above

B. less than true R.L

C. more than true R.L

D. true R.L

3388. If the length of a chain is found to be short on testing, it can be adjusted by______________?
comments icon0

A. closing the joints of the rings if opened out

B. straightening the links

C. removing one or more small circular rings

D. all of the above

3389. After fixing the plane table to the tripod, the main operations which are needed at each plane table station are ______________ ?
comments icon0

A. correct sequence of these operations is

B. centering

C. orientation

D. levelling

3390. The process of determining the locations of the instrument station by drawing re sectors from the locations of the known stations is called_________________?
comments icon0
A. resection

B. traversing

C. radiation

D. intersection

3391. Which of the following methods of offsets involves less measurement on the ground?
comments icon0

A. method of oblique offsets

B. method of ties

C. method of perpendicular offsets

D. all involve equal measurement on the ground

3392. The adjustment of horizontal cross hair is required particularly when the instrument is used for_____________?
comments icon0

A. prolonging a straight line

B. all of the above

C. leveling

D. measurement of horizontal angles

3393. For accurate work, the steel band should always be used in preference to chain because the steel band______________?
comments icon0

A. can be easily repaired in the field

B. is practically inextensible and is not liable to kinks when in use

C. is lighter than chain

D. is easier to handle

3394. The R.L, of the point A which is on the floor is 100 m and back sight reading on A is 2.455 m. If the foresight reading on the point B which is on the ceiling is 2.745 m, the R.L. of point B will be_______________?
comments icon0

A. 94.80 m

B. 100.29 m

C. 99.71 m

D. 105.20 m
3395. The two point problem and three point problem are methods of________________?
comments icon0
A. resection and orientation

B. resection

C. traversing

D. orientation

3396. In direct method of contouring, the process of locating or identifying points lying on a contour is called_______________?
comments icon0

A. horizontal control

B. ranging

C. vertical control

D. centring

3397. The prismatic compass and surveyors compass________________?
comments icon0
A. give whole circle bearing (WCB. of a line and quadrantal bearing (QB. of a line respectively

B. both give QB of a line and WCB of a line

C. both give QB of a line

D. both give WCB of a line

3398. If the magnetic bearing of the sun at a place at noon in southern hemisphere is 167, the magnetic declination at that place is________________?
comments icon0

A. 23 S

B. 13 W

C. 13 E

D. 77 N

3399. Which of the following methods of plane table surveying is used to locate the position of an inaccessible point ?
comments icon0
A. intersection

B. resection

C. radiation

D. traversing

3400. Sensitiveness of a level tube is designated by______________?
comments icon0

A. length of level tube

B. none of the above

C. length of bubble of level tube

D. radius of level tube