civil engineering Mcqs
2351. Which of the following sections should preferably be used at places where torsion occurs ?
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A. box type section

B. any of the above

C. angle section

D. channel section

2353. Gantry girders are designed to resist_________________?
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A. lateral loads

B. lateral and longitudinal loads

C. longitudinal loads and vertical loads

D. lateral, longitudinal and vertical loads
2354. The changes in the reflectivity/emissivity with time, is called ?
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A. Temporal variation

B. None of these

C. Spectral variation

D. Spatial variation

2360. Leaf reflectance depends primarily on______________?
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A. Equivalent water content

B. Internal cell structur

C. The pigments

D. All of these
2361. The ratio of plastic section modulus to elastic section modulus__________________?
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A. can be less than 1

B. is equal to 1

C. is always greater than 1

D. is always less than 1

2362. Generally the purlins are placed at the panel points so as to avoid__________________?
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A. deflection of rafter

B. axial force in rafter

C. bending moment in rafter

D. shear force in rafter

2363. The centrifugal force due to curvature of track is assumed to act on the bridge at a height of___________________?
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A. 1.23 m above the rail level

B. 1.50 m above the rail level

C. 1.83 m above the rail level

D. 2.13 m above the rail level

2367. Battening is preferable when the________________?
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A. space between the two main components is not very large

B. ) column is eccentrically loaded </strong>

C. column carries axial load only

D. correct answer is

2369. The normal altitude of GPS satellite is about________________?
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A. 16,200 km

B. 36,100 km

C. 20,200 km

D. 24,400 km

2370. The external wind pressure acting on a roof depends on__________________?
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A. degree of permeability of roof

B. slope of roof

C. both (A) and (B)

D. none of the above

2373. The mechanism method and the statical method give__________________?
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A. lower bound on the strength of structure

B. upper and lower bounds respectively on the strength of structure

C. upper bound on the strength of structure

D. lower and upper bounds respectively on the strength of structure

2374. Bearing stiffeners are provided at________________?
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A. the supports

B. ) the point of application of concentrated loads</strong>

C. correct answer is?

D. the mid span

2379. Area of openings for buildings of large permeability is more than_________________?
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A. 30% of wall area

B. 20% of wall area

C. 10% of wall area

D. 50% of wall area

2381. The portal bracing in a truss bridge is used to_____________________?
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A. keep the rectangular shape of the bridge cross-section

B. stiffen the structure laterally

C. transfer load from top of end posts to bearings

D. prevent the sidesway buckling of top chord

2383. In case of reflection and refraction of electromagnetic radiation ?
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A. Angle of incidence = angle of refraction

B. Angle of refraction = sum of the angles of incidence and refraction

C. Angle of incidence = angle of reflection

D. All the above

2389. The range of economical spacing of trusses varies from________________?
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A. L/3 to L/5

B. L/3 to L/2

C. 2L/5 to 3L/5 where L is span

D. L/4to2L/5

2391. Which one of the following quantities forms the basis of radiometry ?
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A. Radiant intensity (I)

B. Radiant energy (Q)

C. All of these

D. Radiant flux (?e )

2392. The forces acting on the web splice of a plate girder are__________________?
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A. axial and bending forces

B. axial forces

C. shear and axial forces

D. shear and bending forces
2393. A and B are two towers of equal height diametrically opposite on either side of the nadir point, at 3 km and 5 km distances. Which one of the following statements is correct?
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A. Height displacement of A will be less than that of B

B. Height displacement of B will be less than that of A

C. Height displacement of A and B is equal

D. Height displacement of A and B will be towards each other

2396. Lug angles_________________?
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A. increases shear lag.

B. are used to reduce the length of connection.

C. are unequal angles.

D. all the above

2397. compression force in two end posts The pin of a rocker bearing in a bridge is designed for_________________?
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A. bending and shear

B. bearing, shear and bending

C. bearing and bending

D. bearing and shear

2399. What refers to the amount of money paid for the use of borrowed capital ?
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A. Principal

B. Rate of interest

C. Simple interest

D. Interest
2400. Perfect monopoly exists only if_______________?
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A. the single vendor gets the absolute franchise of the product

B. the single vendor can prevent the entry of all other vendors in the market

C. the single vendor is the only one who has the knowledge of the product

D. the single vendor is the only one who has the permit to sell