civil engineering Mcqs
401. Maximum quantity of water needed per 50 kg of cement for M 15 grade of concrete is_______________?
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A. 32 liters

B. 30 liters

C. 28 liters

D. 34 liters

402. Los Angeles testing machine is used to conduct______________?
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A. abrasion test

B. crushing strength test

C. impact test

D. attrition test

403. 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. orientation

C. levelling

D. centering

404. The individual variation between test strength of sample should not be more than______________?
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A. 10% of average

B. 20% of average

C. 5% of average

D. 15% of average
405. Intersection method of detailed plotting is most suitable for________________?
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A. urban areas

B. hilly areas

C. plains

D. forests

406. When the bituminous surfacing is done on already existing black top road or over existing cement concrete road, the type of treatment to be given is________________?
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A. prime coat

B. tack coat

C. seal coat

D. spray of emulsion

407. Which of the following is considered to be the highest quality construction in the group of black top pavements ?
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A. bituminous carpet

B. mastic asphalt

C. bituminous concrete

D. sheet asphalt

408. 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. N6630W

D. S11330N

409. The approximate value of the ratio between direct tensile strength and flexural strength is_____________?
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A. 0.33

B. 0.5

C. 0.75

D. 1

410. For the construction of water bound macadam roads, the correct sequence of operations after spreading coarse aggregates is________________?
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A. dry rolling, wet rolling, application of screening and application of filler

B. dry rolling, application of filler, wet rolling and application of screening

C. dry rolling, application of screening, application of filler and wet rolling

D. dry rolling, application of screening, wet rolling and application of filler
411. The most suitable equipment for compacting clayey soils is a_______________?
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A. smooth wheeled roller

B. sheep foot roller

C. pneumatic tyred roller

D. vibrator

412. The adjustment of horizontal cross hair is required particularly when the instrument is used for_____________?
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A. measurement of horizontal angles

B. prolonging a straight line

C. all of the above

D. leveling
413. Diagonal tension in a beam______________?
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A. increases below the neutral axis and decreases above the neutral axis

B. remains same

C. is maximum at neutral axis

D. decreases below the neutral axis and increases above the neutral axis

414. Which of the following premix methods is used for base course ?
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A. sheet asphalt

B. mastic asphalt

C. bituminous bound macadam

D. bituminous carpet

415. Select the incorrect statement?
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A. The true meridians converge to a point in northern and southern hemispheres

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

C. The true meridian at any place is not variable

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

416. If the intercept on a vertical staff is ob-served as 0.75 m from a tacheometer, the horizontal distance between tacheometer and staff station is________________?
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A. 50

B. 25 m

C. 75 m

D. 7.5 m

417. The factor of safety for______________?
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A. none of the above

B. steel is higher than that for concrete

C. steel and concrete are same

D. steel is lower than that for concrete
418. 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

419. The percentage compensation in gradient for ruling gradient of 4% and horizontal curve of radius 760 m is____________________?
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A. 10%

B. 1%

C. 0.10%

D. no compensation
420. The horizontal angle between the true meridian and magnetic meridian at a place is called______________?
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A. magnetic bearing

B. local attraction

C. declination

D. azimuth

421. One of the criteria for the effecvve width of flange of T-beam is bf =+ bw +6Df 6 In above formula, l0 signifies_______________?
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A. effective span of T-beam

B. clear span of the T-beam

C. distance between points of zero moments in the beam

D. distance between points of maximum moments in the beam

422. A traffic rotary is justified where______________?
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A. when traffic volume is less than 500 vehicles per hour

B. number of intersecting roads is between 4 and 7

C. space is limited and costly

D. when traffic volume is more than 5000 vehicles per hour

423. Softening point of bitumen to be used for read construction at a place where maximum temperature is 40 C should be______________?
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A. greater than 40C

B. none of the above

C. equal to 40C

D. less-than 40C

424. For rapid curing cutbacks, the oil used is______________?
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A. light diesel

B. heavy diesel

C. gasoline

D. kerosene oil

425. With increase in speed of the traffic stream, the maximum capacity of the lane________________?
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A. first increases and then decreases after reaching a maximum value at optimum speed

B. increases

C. first decreases and then increases after reaching a minimum value at optimum speed

D. decreases

426. Subtense bar is an instrument used for _______________?
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A. levelling

B. measurement of horizontal distances in undulated areas

C. measurement of horizontal distances in plane areas

D. measurement of angles

427. The transition curve used in the horizontal alignment of highways as per IRC recommendations is_______________?
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A. any of the above

B. spiral

C. lemniscate

D. cubic parabola

428. Bitumen of grade 80/100 means______________?
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A. its penetration value is 8 to 10 mm

B. its penetration value is 8 to 10 cm

C. its penetration value is 8 mm

D. its penetration value is 10 mm

429. When a number of roads are meeting at a point and only one of the roads is important, then the suitable shape of rotary is________________?
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A. elliptical

B. tangent

C. circular

D. turbine

430. If the lower clamp screw is tightened and upper clamp screw is loosened, the theodolite may be rotated____________?
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A. on its inner spindle without a relative motion between the vernier and the graduated scale of lower plate

B. on its outer spindle with a relative motion between the vernier and graduated scale of lower plate

C. on its inner spindle with a relative motion between the vernier and the graduated scale of lower plate

D. on its outer spindle without a relative motion between the vernier and gra-duated scale of lower plate

431. The maximum allowable Los Angeles abrasion value for high quality surface course is_______________?
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A. 30%

B. 45%

C. 20%

D. 10%

432. In case of summit curves, the deviation angle will be maximum when_______________?
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A. an ascending gradient meets with a level surface

B. a descending gradient meets with another descending gradient

C. an ascending gradient meets with a descending gradient

D. an ascending gradient meets with another ascending gradient

433. Coefficient of compressibility is_______________?
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A. independent of type of soil but depends on the stress history of soil

B. constant for any type of soil

C. different for different types of soils and also different for a soil under different states of consolidation

D. different for different types of soils but same for a soil under different states of consolidation

434. Quick sand is a________________?
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A. type of sand

B. flow condition occurring in cohesive soils

C. flow condition occurring in cohesionless soils

D. flow condition occurring in both cohesive and cohesionless soils

435. In a counterfort retaining wall, the main reinforcement is provided on the_______________?
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A. e="color: #003f1a;">3. bottom face in back counterfort
B. e="color: #003f1a;">4. inclined face in back counterEort
C. ="color: #003f1a;">1. bottom face in front counterfort

D. correct answer is

E. e="color: #003f1a;">2. inclined face in front counterfort
436. For a slab supported on its four edges with corners held down and loaded uniformly, the Marcus correction factor to the moments obtained by Grashoff Rankines theory_______________?
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A. can be more than 1

B. can be less than 1

C. is always greater than 1

D. is always less than 1
437. According to Whitneys theory, depth of stress block for a balanced section of a concrete beam is limited to_______________?
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A. 0.68 d

B. 0.537 d

C. 0.43 d

D. 0.85 d

438. In a deposit of normally consolidated clay_________________?
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A. effective stress and undrained strength increase with depth but water content decreases with depth

B. effective stress, water content and undrained strength decrease with depth

C. effective stress increases with depth but water content of soil and un-drained strength decrease with depth

D. effective stress and water content increase with depth but undrained strength decreases with depth

439. A cylindrical specimen of saturated soil failed under an axial vertical stress of 100kN/m2 when it was laterally unconfmed. The failure plane was inclined to the horizontal plane at an angle of 45. The values of cohesion and angle of internal friction for the soil are respectively______________________?
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A. 0.2 N/mm2 and 0

B. 0.5 N/mm2 and 30

C. 0.05 N/mm2 and 0

D. 0.05 N/mm2 and 45

440. Minimum thickness of load bearing RCC wall should be_____________?
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A. 100 mm

B. 200 mm

C. 50 mm

D. 150 mm

441. The slab is designed as one way if the ratio of long span to short span is_____________?
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A. between 1 and 1.5

B. greater than 2

C. less than 1

D. between 1.5 and 2

442. Toughness index is defined as the ratio of____________________?
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A. consistency index to liquidity index

B. plasticity index to flow index

C. liquidity index to flow index

D. plasticity index to consistency index

443. Within the consolidation process of a saturated clay__________________?
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A. a gradual increase in neutral pressure and a gradual decrease in effective pressure takes place and sum of the two is constant

B. a gradual decrease in neutral pressure and a gradual increase in effective pressure takes place and sum of the two is constant

C. both neutral pressure and effective pressure decrease

D. both neutral pressure and effective pressure increase

444. Ultimate strength of cold drawn high steel wires_______________?
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A. decreases with increase in diameter of bar

B. none of the above

C. does not depend on diameter of bar

D. increases with increase in diameter of bar

445. Terzaghis general bearing capacity formula for a strip footing (C Nc + y D Nq + 0.5 Y NTB. gives______________?
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A. safe bearing capacity

B. ultimate bearing capacity

C. net safe bearing capacity

D. net ultimate bearing capacity where C = unit cohesion

446. Rise of water table in cohesionless soils upto ground surface reduces the net ultimate bearing capacity approximately by________________?
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A. 25%

B. 75%

C. 50%

D. 90%

447. A pre-cast pile generally used, is______________?
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A. Octagonal

B. Circular

C. Square

D. Square with corners chamfered
448. The average permissible stress in bond for plain bars in tension is_______________?
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A. decreased by 10% for bars in compression

B. increased by 10% for bars in compression

C. increased by 25% for bars in compression

D. decreased by 25% for bars in compression

449. Constant head permeameter is used to test permeability of_______________?
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A. clay

B. silt

C. fine sand

D. coarse sand
450. Coarse grained soils are best compacted by a_______________?
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A. vibratory roller

B. drum roller

C. rubber tyred roller

D. sheeps foot roller