civil engineering Mcqs
701. The shear reinforcement in R.C.C. is provided to resist__________________?
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A. Vertical shear

B. Horizontal shear

C. Diagonal tension

D. Diagonal compression

702. In a simply supported slab, alternate bars are curtailed at________________?
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A. 1/7th of the span

B. 1/4th of the span

C. 1/5th of the span

D. 1/6th of the span

703. If diameter of a reinforcement bar is d, the anchorage value of the hook is_______________?
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A. 16d

B. 12d

C. 8d

D. 4d

704. Pick up the correct statement from the following?
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A. A pile is a slender member which transfers its load by friction

B. A pile is a slender member which transfers its load to the surrounding soil

C. A pile is a slender member which transfers the load through its lower end on a strong strata

D. A pile is a cylindrical body of concrete which transfers the load at a depth greater than its width

705. Spacing of stirrups in a rectangular beam, is__________________?
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A. Decreased towards the centre of the beam

B. Increased at the ends

C. Kept constant throughout the length

D. Increased at the centre of the beam
706. If two equal forces of magnitude P act at an angle 9, their resultant will be________________?
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A. Psin 9/2

B. 2P tan 9/2

C. IP cos 9/2

D. P/2 cos 9/2

E. IP sin 9/2

707. The allowable tensile stress in mild steel stirrups, reinforced cement concrete, is_______________?
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A. 1400 kg/cm2

B. 260 kg/cm2

C. 190 kg/cm2

D. 230 kg/cm2

708. If permissible working stresses in steel and concrete are respectively 1400 kg/cm2 and 80 kg/cm2 and modular ratio is 18, in a beam reinforced in tension side and of width 30 cm and having effective depth 46 cm, the lever arms of the section, is______________?
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A. 37 cm

709. Enlarged head of a supporting column of a flat slab is technically known as______________?
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A. Top of the column

B. Supporting end of the column

C. Drop panel

D. Capital
710. In a combined footing if shear stress does not exceed 5 kg/cm2, the nominal stirrups provided are________________?
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A. 6 legged

B. 12 legged

C. 8 legged

D. 10 legged

711. On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be__________________?
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A. downwards at its upper end

B. none of the above

C. perpendicular to the wall at its upper end

D. zero at its upper end

E. upwards at its upper end

712. The length of the straight portion of a bar beyond the end of the hook, should be at least_______________?
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A. Seven times the diameter

B. Four times the diameter

C. Twice the diameter

D. Thrice the diameter

713. If W is total load per unit area on a panel, D is the diameter of the column head, L is the span in two directions, then the sum of the maximum positive bending moment and average of the negative bending moment for the design of the span of a square flat slab, should not be less than________________?
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A. WL/10 (L 2D/3)

B. WL/12 (L D/3)

C. WL/10 (L + 2D/3)

D. WL/12 (L 2D/3)

714. The length of lap in tension reinforcement should not be less than the bar diameter (actual tension / four times the permissible average bond stress) if it is more than_______________?
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A. 30 bar diameters

B. 24 bar diameters

C. 36 bar diameters

D. 18 bar diameters

715. The maximum diameter of a bar used in a ribbed slab, is______________?
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A. 20 mm

B. 6 mm

C. 12 mm

D. 22 mm
716. A flywheel on a motor goes from rest to 1000 rpm in 6 sec. The number of revolutions made is nearly equal to______________?
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A. 50

B. 100

C. 250

D. 25

E. 500

717. As per IS : 456, the reinforcement in a column should not be less than________________?
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A. 0.6% and not more than 6% of cross-sectional area

B. 0.8% and not more than 8% of cross-sectional area

C. 0.5% and not more than 5% of cross-sectional area

D. 0.7% and not more than 7% of cross-sectional area

718. A pre-stressed rectangular beam which carries two concentrated loads W at L/3 from either end, is provided with a bent tendon with tension P such that central one-third portion of the tendon remains parallel to the longitudinal axis, the maximum dip h is_____________________?
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A. WL/3P

B. WL/4P

C. WL/2P

D. WL/P

719. A number of forces acting at a point will be in equilibrium if_________________?
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A. their total sum is zero

B. two resolved parts in two directions at right angles are equal

C. sum of resolved parts in any two per-pendicular directions are both zero

D. all of them are inclined equally

E. none of the above

720. The width of the rib of a T-beam, is generally kept between_______________?
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A. 1/2 to 3/4 of rib depth

B. 1/3 to 2/3 of rib depth

C. 1/7 to 1/3 of rib depth

D. 1/3 to 1/2 of rib depth

721. If P kg/m2 is the upward pressure on the slab of a plain concrete footing whose projection on either side of the wall is a cm, the depth of foundation D is given by________________?
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A. D = 0.0775 aP

B. D = 0.775 Pa

C. D = 0.07775 aP

D. D = 0.00775 aP
722. Design of a two way slab simply supported on edges and having no provision to prevent the corners from lifting, is made by_________________?
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A. Marcus formula

B. Grashoff formula

C. Rankine Grashoff formula

D. Rankine formula

723. An R.C.C. beam of 25 cm width and 50 cm effective depth has a clear span of 6 metres and carries a U.D.L. of 3000 kg/m inclusive of its self weight. If the lever arm constant for the section is 0.865, the maximum intensity of shear stress, is_______________?
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A. 11.4 kg/cm2

B. 21.5 kg/cm 2

C. 8.3 kg/cm2

D. 7.6 kg/cm2

724. Piles are usually driven by________________?
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A. Single acting steam hammer

B. All the above

C. Diesel operated hammer

D. Drop hammer

725. The unit of force in S.I. units is_________________?
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A. newton

B. joule

C. dyne

D. kilogram

E. watt

726. The minimum cube strength of concrete used for a pre-stressed member, is________________?
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A. 50 kg/cm2

B. 150 kg/cm 2

C. 350 kg/cm2

D. 250 kg/cm2

727. A force acting on a body may_______________?
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A. introduce internal stresses

B. retard its motion

C. all of the above

D. change its motion

E. balance the other forces acting on it

728. If the sides of a slab simply supported on edges and spanning in two directions are equal, the maximum bending moment is multiplied by_________________?
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A. 0.5

B. 0.2

C. 0.4

D. 0.3

729. Which of the following is not the unit of power ?
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A. kW (kilowatt)

B. kcal/sec

C. kcal/kg sec

D. hp (horse power)

E. kg m/sec

730. If the maximum shear stress at the end of a simply supported R.C.C. beam of 16 m effective span is 10 kg/cm2, the length of the beam having nominal reinforcement, is________________?
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A. 8 m

B. 8 cm

C. 6 m

D. 10 m

731. Angle oT friction is the___________________?
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A. ratio of limiting friction and normal reaction

B. ratio of static and dynamic friction

C. the ratio of minimum friction force to friction force acting when the body is in motion

D. angle between normal reaction and the resultant of normal reaction and the limiting friction

E. the ratio of minimum friction force to the friction force acting when the body is just about to move

732. A T-beam behaves as a rectangular beam of a width equal to its flange if its neutral axis______________?
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A. Remains within the flange

B. None of these

C. Coincides the geometrical centre of the beam

D. Remains below the slab

733. on a circular slab of radius , the maximum radial moment at the centre of the If is the load slab, is WR/16_____________?
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A. 2WR/16

B. 5WR/16

C. t; NON OF THESE

D. 3WR/16
734. As per I.S. 456 1978, the pH value of water shall be_______________?
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A. Equal to 7

B. Not less than 6

C. Less than 6

D. Equal to 6

735. To have pressure wholly compressive under the base of a retaining wall of width b, the resultant of the weight of the wall and the pressure exerted by the retained, earth should have eccentricity not more than________________?
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A. b/5

B. b/6

C. b/4

D. b/3

736. The unit of power in S.I. units is______________?
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A. kilogram meter/sec

B. watt

C. pascal per sec

D. newton meter

E. joule

737. The maximum shear stress (qmax) in a rectangular beam is_______________?
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A. 2.0 times the average

B. 1.25 times the average

C. 1.75 times the average

D. 1.50 times the average
738. If is the overall height of a retaining wall retaining a surcharge, the width of the base slab usually provided, is________________?
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A. 0.5 H

B. 0.4 H

C. 0.7 H

D. 0.3 H

739. Post tensioning system_______________?
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A. Is not economical and hence not generally used

B. None of these

C. Is economical for large spans and is adopted now a days

D. Was widely used in earlier days

740. The diameter of transverse reinforcement of columns should be equal to one-fourth of the diameter of the main steel rods but not less than________________?
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A. 6 mm

B. 5 mm

C. 4 mm

D. 7 mm
741. The maximum ratio of span to depth of a cantilever slab, is_______________?
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A. 8

B. 12

C. 16

D. 10

742. The units of moment of inertia of mass are_____________________?
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A. m2/kg

B. kg/m2

C. kg m2

D. kg/m

E. m4

743. If W is the load on a circular slab of radius R, the maximum circumferential moment at the centre of the slab, is________________?
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A. WR/16

B. 2WR/16

C. 3WR/16

D. Zero

744. If three forces acting in different planes can be represented by a triangle, these will be in________________?
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A. partial equilibrium

B. non-equilibrium

C. unpredictable

D. full equilibrium

E. none of the above

745. The percentage of minimum reinforcement of the gross sectional area in slabs, is________________?
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A. 0.12%

B. 0.15 %

C. 0.10%

D. 0.18%

746. If the maximum shear stress at the end of a simply supported R.C.C. beam of 6 m effective span is 10 kg/cm2, the share stirrups are provided for a distance from either end where, is________________?
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A. 50 cm

B. 200 cm

C. 100 cm

D. 150 cm
747. Thickened part of a flat slab over its supporting column, is technically known as_____________?
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A. Drop panel

B. Column head

C. Top of the column

D. None of these

748. If K is a constant depending upon the ratio of the width of the slab to its effective span l, x is the distance of the concentrated load from the nearer support, bw is the width of the area of contact of the concentrated load measured parallel to the supported edge, the effective width of the slab be is_______________?
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A. Kx (1 + x/l) + bw

B. K/x (1 + x/d) + bw

C. Kx (1 x/l) + bw

D. All the above

749. In testing a pile by load test, pile platform is loaded with one and half times the design load and a maximum settlement is noted. The load is gradually removed and the consequent rebound is measured. For a safe pile, the net settlement (i.e. total settlement minus rebound) per tonne of test load should not exceed________________?
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A. 10 mm

B. 25 mm

C. 15 mm

D. 20 mm

750. Though the effective depth of a T-beam is the distance between the top compression edge to the centre of the tensile reinforcement, for heavy loads, it is taken as__________________?
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A. 1/16th of the span

B. 1/10th of the span

C. 1/12th of the span

D. 1/8th of the span