civil engineering MCQs – Page 171

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 Review each marked answer and report any item that may be outdated or unclear.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
3401. With the rise of temperature, the sensitivity of a bubble tube______________?
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A. none of the above

B. remains unaffected

C. decreases

D. increases

3402. In the prismatic compass______________?
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A. the line of the sight does not move with the box

B. the magnetic needle and graduated circle do not move with the box

C. the magnetic needle moves with the box

D. the graduated circle is fixed to the box and the magnetic needle always remains in the N-S direction

3403. Transit rule of adjusting the consecutive coordinates of a traverse is used where________________?
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A. linear measurements are more accurate than angular measurements

B. all of the above

C. angular measurements are more accurate than linear measurements

D. linear and angular measurements of the traverse are of equal accuracy

3404. In the quadrantal bearing system, a whole circle bearing of 293 30? can be expressed as______________?
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A. N2330W

B. W2330N

C. S11330N

D. N6630W
3405. Refraction correction________________?
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A. partially eliminates curvature correction

B. has no effect on curvature correction

C. adds to the curvature correction

D. completely eliminates curvature correction

3406. A negative declination shows that the magnetic meridian is to the________________?
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A. western side of the true meridian

B. southern side of the true meridian

C. eastern side of the true meridian

D. none of the above

3407. The correction for sag is_________________?
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A. always zero

B. sometimes additive and sometimes subtractive

C. always subtractive

D. always additive

3408. The length of a chain is measured from_______________?
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A. centre of one handle to centre of other handle

B. outside of one handle to outside of other handle

C. outside of one handle to inside of other handle

D. inside of one handle to inside of other handle

3409. If in a closed traverse, the sum of the north latitudes is more than the sum of the south latitudes and also the sum of west departures is more than the sum of the east departures, the bearing of the closing line is in the________________?
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A. SW quadrant

B. SE quadrant

C. NW quadrant

D. NE quadrant

3410. Which of the following angles can be set out with the help of French cross staff?
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A. any angle

B. 45 only

C. either 45 or 90

D. 90 only

3411. During chaining along a straight line, the . leader of the party has 4 arrows in his hand while the follower has 6. Distance of the follower from the starting point is_____________?
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A. 180m

B. 4 chains

C. 120 m

D. 6 chains
3412. Theodolite is an instrument used for_________________?
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A. tightening the capstan-headed nuts of level tube

B. measurement of horizontal angles only

C. measurement of vertical angles only

D. measurement of both horizontal and vertical angles
3413. The permissible error in chaining for measurement with chain on rough or hilly ground is_____________?
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A. 1 in 1000

B. 1 in 250

C. 1 in 100

D. 1 in 500

3414. As applied to staff readings, the corrections for curvature and refraction are respectively The above table shows a part of a level field book. The value of X should be________________?
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A. 102.3

B. 98.7

C. 100.00

D. 103.3

3415. The angle between the prolongation of the preceding line and the forward line of a traverse is called ________________?
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A. direct angle

B. included angle

C. none of the above

D. deflection angle
3416. Which of the following methods of con-touring is most suitable for a hilly terrain ?
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A. tacheometric method

B. direct method

C. cross-sections method

D. square method

3417. Local attraction in compass surveying may exist due to________________?
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A. presence of magnetic substances near the instrument

B. loss of magnetism of the needle

C. incorrect levelling of the magnetic needle

D. friction of the needle at the pivot

3418. The instrument used for accurate centering in plane table survey is________________?
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A. spirit level

B. trough compass

C. plumbing fork

D. alidade

3419. The maximum tolerance in a 20 m chain is_______________?
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A. 3 mm

B. 8 mm

C. 5 mm

D. 2 mm

3420. Three point problem can be solved by_________________?
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A. Bessels method

B. all of the above

C. Lehmans method

D. Tracing paper method