civil engineering MCQs – Page 170

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 Review each marked answer and report any item that may be outdated or unclear.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
3381. Subtense bar is an instrument used for _______________?
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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_______________?
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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_____________?
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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______________?
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A. 10 m

B. 2 m

C. 20 m

D. 5m

3385. Dumpy level is most suitable when______________?
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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_________________?
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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_______________?
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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______________?
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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 ______________ ?
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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_________________?
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A. resection

B. traversing

C. radiation

D. intersection

3391. Which of the following methods of offsets involves less measurement on the ground?
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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_____________?
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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______________?
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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_______________?
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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________________?
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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_______________?
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A. horizontal control

B. ranging

C. vertical control

D. centring

3397. The prismatic compass and surveyors compass________________?
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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________________?
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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 ?
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A. intersection

B. resection

C. radiation

D. traversing

3400. Sensitiveness of a level tube is designated by______________?
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A. length of level tube

B. none of the above

C. length of bubble of level tube

D. radius of level tube