civil engineering Mcqs
551. Which of the following types of soil is transported by gravitational forces ?
comments icon0
A. talus

B. dune sand

C. drift

D. loess

552. Stress strain curve of high tensile steel_______________?
comments icon0
A. does not show definite yield point but yield point is defined by 0.2% proof stress

B. has a definite yield point

C. does not show definite yield point but yield point is defined by 2% proof stress

D. does not show definite yield point but yield point is defined by 0.1% proof stress

553. If nominal shear stress tv exceeds the design shear strength of concrete xc, the nominal shear reinforcement as per IS : 456-1978 shall be provided for carrying a shear stress equal to__________________?
comments icon0

A. xc

B. xv TC

C. Tv + Tc

D. xv

554. Inorganic soils with low compressibility are represented by_________________?
comments icon0

A. SL

B. ML

C. CH

D. MH

555. Select the correct statement?
comments icon0

A. High tensile steel is cheaper than mild steel

B. Carbon percentage in high carbon steel is less than that in mild steel

C. Elastic modulus of high tensile steel is nearly the same as that of mild steel

D. Elastic modulus of high tensile steel is more than that of mild steel

556. The load factors for live load and dead load are taken respectively as_________________?
comments icon0

A. 2.2 and 2.2

B. 1.5 and 2.2

C. 1.5 and 1.5

D. 2.2 and 1.5
557. The major principal stress in an element of cohesionless soil within the backfill of a retaining wall is________________?
comments icon0

A. vertical if the soil is in a passive state of plastic equilibrium

B. none of the above

C. vertical if the soil is in an active state of plastic equilibrium

D. inclined at 45 to the vertical plane

558. Clay layer A with single drainage and coefficient of consolidation Cv takes 6 months to achieve 50% consolidation. The time taken by clay layer B of the same thickness with double drainage and coefficient of consolidation Cv/2 to achieve the same degree of consolidation is_________________?
comments icon0

A. 12 months

B. 24 months

C. 3 months

D. 6 months

559. The load stress of a section can be reduced by______________?
comments icon0

A. Increasing the total perimeter of bars

B. Replacing larger bars by greater number of small bars

C. Replacing smaller bars by greater number of greater bars

D. Decreasing the lever arm

560. Dispersed type of soil structure is an arrangement comprising particles having______________?
comments icon0

A. all of the above

B. edge to face orientation

C. face to face or parallel orientation

D. edge to edge orientation

561. Effective stress on soil_____________?
comments icon0

A. increases voids ratio and decreases permeability

B. increases both voids ratio and permeability

C. decreases both voids ratio and permeability

D. decreases voids ratio and increases permeability

562. Which one of the following clays behaves like a dense sand ?
comments icon0
A. over-consolidated ciay with a high over-consolidation ratio

B. normally consolidated clay

C. under-consolidated clay

D. over-consolidated clay with a low over-consolidation ratio

563. Due to shrinkage stresses, a simply supported beam having reinforcement only at bottom tends to_____________?
comments icon0
A. deflect downward

B. deflect downward or upward

C. none of the above

D. deflect upward

564. Voids ratio of a soil mass can_________________?
comments icon0

A. be zero

B. never be greater than unity

C. take any value greater than zero

D. take values between 0 and 1 only

565. At liquid limit, all soils possess________________?
comments icon0

A. same shear strength of large magnitude

B. different shear strengths of large magnitude

C. same shear strength of small magnitude

D. different shear strengths of small magnitude

566. The flownet for an earthen dam with 30 m water depth consists of 25 potential drops and 5 flow channels. The coefficient of permeability of dam material is 0.03 mm/sec. The discharge per meter length of dam is________________?
comments icon0
A. 0.00018 nrVsec

B. 0.1125m3/sec

C. 0.0045 m3/sec

D. 0.18m3/sec

567. Examine the following statements ___________?
comments icon0
A. an style="color: #003f1a;">1. Factor of safety for steel should be based on its yield stress,
B. pan style="color: #003f1a;">4. Factor of safety for concrete should be based on its ultimate stress.
C. pan style="color: #003f1a;">2. Factor of safety for steel should be based on its ultimate stress,
D. pan style="color: #003f1a;">3. Factor of safety for concrete should be based on its yield stress,

E. correct statements are

568. To ensure uniform pressure distribution, the thickness of the foundation, is__________________?
comments icon0

A. Increased gradually towards the edge

B. Decreased gradually towards the edge

C. Kept zero at the edge

D. Kept uniform throughout

569. The ratio of the diameter of reinforcing bars and the slab thickness is_______________?
comments icon0
A. 1/8

B. 5-Jan

C. 6-Jan

D. 4-Jan

570. The permissible diagonal tensile stress in reinforced brick work is_____________?
comments icon0

A. about 1.0 N/mm2

B. 0.3 N/mm2 to 0.7 N/mm2

C. about 0.1 N/mm2

D. zero

571. Sinking of an intermediate support of a continuous beam_____________?
comments icon0
A. e="color: #003f1a;">2. increases the negative moment at support
B. e="color: #003f1a;">3. reduces the positive moment at center of span
C. e="color: #003f1a;">4. increases the positive moment at center of span

D. correct answer is?

E. ="color: #003f1a;">1. reduces the negative moment at support
572. Minimum spacing between horizontal parallel reinforcement of the same size should not be less than________________?
comments icon0

A. 3 diameters

B. One diameter

C. 2.5 diameters

D. 3.5 diameters

573. The maximum value of hoop compression in a dome is given by___________________?
comments icon0

A. 2wR/d

B. wR/d

C. wR/2d

D. wR / 4d

574. For M 150 grade concrete (1:2:4) the moment of resistance factor is_________________?
comments icon0

A. 5.8

B. 8.50

C. 0.87

D. 7.5

575. Coefficient of earth pressure at rest is__________________?
comments icon0

A. less than active earth pressure but greater than passive earth pressure

B. greater than active earth pressure but less than passive earth pressure

C. greater than both the active earth pressure and passive earth pressure

D. less than both the active and passive earth pressures

576. Relative density of a compacted dense sand is approximately equal to_____________?
comments icon0

A. 1.2

B. 0.95

C. 0.4

D. 0.6

577. The width of the flange of a L-beam, should be less than______________?
comments icon0
A. Least of the above

B. Breadth of the rib + four times thickness of the slab

C. Breadth of the rib + half clear distance between ribs

D. One- sixth of the effective span

578. In a spherical dome subjected to concentrated load at crown or uniformly distributed load, the meridional force is always________________?
comments icon0

A. zero

B. compressive

C. tensile

D. tensile or compressive

579. Shrinkage of concrete depends upon_____________?
comments icon0
A. an style="color: #003f1a;">1. humidity of atmosphere

B. correct answer is?

C. pan style="color: #003f1a;">2. passage of time
D. pan style="color: #003f1a;">3. stress
580. Select the correct statement?
comments icon0

A. Uniformity coefficient does not affect strength and stability

B. A uniform soil has more strength and stability than a non-uniform soil

C. Uniformity coefficient of a poorly graded soil is more than that of a well graded soil

D. A uniform soil has less strength and stability than a non-uniform soil
581. If the water table rises upto ground surface, then the___________________?
comments icon0

A. total stress is increased due to de-crease in pore water pressure but effective stress does not change

B. effective stress is reduced due to increase in pore water pressure only but total stress does not change

C. total stress is reduced due to increase in pore water pressure only but effec-tive stress does not change

D. effective stress is reduced due to decrease in total stress only but pore water pressure does not change

582. Which of the following has high tensile strength ?
comments icon0

A. heat treated rolled wires

B. plain hot rolled wires

C. all have same tensile strength

D. cold drawn wires
583. In prestressed concrete______________?
comments icon0

A. forces of tension and compression change but lever arm remains unchanged

B. forces of tension and compressions remain unchanged but lever arm changes with the moment

C. both forces of tension and compres-sion as well as lever arm change

D. both forces of tension and compres-sion as well as lever arm remain unchanged

584. Ratio of permissible stress in direct compression and bending compression is______________?
comments icon0
A. less than 1

B. between 1.5 and 2.0

C. between 1 and 1.5

D. greater than 2

585. The main reinforcement in the toe of a T- shaped R C. retaining wall is provided on_______________?
comments icon0
A. e="color: #003f1a;">4. bottom face perpendicular to the wall
B. e="color: #003f1a;">2. top face perpendicular to the wall

C. correct answer is ?

D. ="color: #003f1a;">1. top face parallel to the wall
E. e="color: #003f1a;">3. bottom face paralleUo the wall
586. A 600 mm square bearing plate settles by 15 mm in plate load test on a cohesionless soil under an intensity of loading of 0.2 N/ram2. The settlement of a prototype shallow footing 1 m square under the same intensity of loading is_______________?
comments icon0

A. 25 mm

B. greater than 25 mm

C. 15 mm

D. between 15 mm and 25 mm
587. For a longitudinal reinforcing bar in a column, the minimum cover shall neither be less than the diameter of bar nor less than_______________?
comments icon0

A. 15 mm

B. 25 mm

C. 40 mm

D. 30 mm

588. If C is creep coefficient, f is original pre-stress in concrete, m is modular ratio, E is Youngs modulus of steel and e is shrinkage strain, the combined effect of creep and shrinkage is________________?
comments icon0

A. (C 1)mf eE

B. (1 C)mf + eE

C. (1 C) mf eE

D. (C 1)mf + eE
589. The maximum permissible size of aggregates to be used in casting the ribs of a slab, is______________?
comments icon0

A. 15 mm

B. 5 mm

C. 10 mm

D. 7.5 mm

590. The neutral axis of a T-beam exists_________________?
comments icon0
A. All the above

B. Within the flange

C. At the bottom edge of the slab

D. Below the slab

591. An R.C.C. lintel is spanning an opening of 2 m span in a brick wall. The height of the roof is 2.9 m above the floor level and that of the opening is 2.1 m above the floor level. The lintel is to be designed for self weight plus_______________?
comments icon0

A. UDL of wall

B. UDL of wall + load from the roof

C. Triangular load of the wall

D. Triangular load + load from the roof

592. In a pile of length /, the points of suspension from ends for lifting it are located at______________?
comments icon0
A. 0.207 1

B. 0.293 /

C. 0.333 /

D. 0.25 /

593. For the design of retaining walls, the minimum factor of safety against overturning is taken as_____________?
comments icon0

A. 2.5

B. 1.5

C. 2.0

D. 3

594. In a ring beam subjected to uniformly distributed load______________?
comments icon0
A. e="color: #003f1a;">3. torsion at mid span is zero
B. e="color: #003f1a;">4. torsion at mid span is maximum
C. ="color: #003f1a;">1. shear force at mid span is zero

D. correct answer is ?

E. e="color: #003f1a;">2. shear force at mid span is maximum
595. Normally prestressing wires are arranged in the_______________?
comments icon0

A. center

B. lower part of the beam

C. upper part of the beam

D. anywhere

596. The percentage of reinforcement in case of slabs, when high strength deformed bars are used is not less than________________?
comments icon0

A. 0.3

B. 1

C. 0.15

D. 0.12
597. Select the incorrect statement?
comments icon0
A. none of the above

B. For heavy loads and large spans in buildings or bridges, post-tensioning system is cheaper than pretensioning system

C. The loss of prestress is more in pre-tensioning system than in post-tensioning system.

D. Pretensioning system has greater certainty about its durability.

598. Bishops method of stability analysis_______________?
comments icon0
A. assumes the slip surface as an arc of a circle

B. neglects the effect of forces acting on the sides of the slices

C. is more conservative

D. all of the above

599. Select the correct statement?
comments icon0
A. coefficient of compressibility of an over-consolidated clay is less than that of a normally consolidated clay

B. coefficient of compressibility of an over-consolidated clay is greater than that of a normally consolidated clay

C. coefficient of compressibility is cons-tant for any clay

D. none of the above

600. Critical section for shear in case of flat slabs is at a distance of_______________?
comments icon0
A. d/2 from periphery of column/capital/ drop panel

B. at the periphery of column

C. effective depth of slab from periphery of column/drop panel

D. at the drop panel of slab