Explore topic-wise MCQs in Civil Engineering.

This section includes 430 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.

101.

The maximum ratio of span to depth of a slab simply supported and spanning in one direction, is______________?

A. 35
B. 25
C. 30
D. 20
Answer» D. 20
102.

The maximum ratio of span to depth of a cantilever slab, is_______________?

A. 8
B. 10
C. 12
D. 16
Answer» D. 16
103.

The maximum permissible size of aggregates to be used in casting the ribs of a slab, is______________?

A. 5 mm
B. 7.5 mm
C. 10 mm
D. 15 mm
Answer» D. 15 mm
104.

The maximum diameter of a bar used in a ribbed slab, is______________?

A. 12 mm
B. 6 mm
C. 20 mm
D. 22 mm
Answer» E.
105.

The maximum area of tension reinforcement in beams shall not exceed_______________?

A. 0.15 %
B. 1.5 %
C. 4 %
D. 1 %
Answer» D. 1 %
106.

The load stress of a section can be reduced by______________?

A. Decreasing the lever arm
B. Increasing the total perimeter of bars
C. Replacing larger bars by greater number of small bars
D. Replacing smaller bars by greater number of greater bars
Answer» D. Replacing smaller bars by greater number of greater bars
107.

The live load to be considered for an accessible roof, is________________?

A. Nil
B. 75 kg/m3
C. 150 kg/m 2
D. 200 kg/cm 2
Answer» D. 200 kg/cm 2
108.

The live load to be considered for an inaccessible roof, is______________?

A. Nil
B. 75 kg/m2
C. 150 kg/cm 2
D. 200 kg/m2
Answer» C. 150 kg/cm 2
109.

The length of the straight portion of a bar beyond the end of the hook, should be at least_______________?

A. Twice the diameter
B. Thrice the diameter
C. Four times the diameter
D. Seven times the diameter
Answer» E.
110.

The length of the lap in a compression member is kept greater than bar diameter x (Permissible stress in bar / Five times the bond stress) or____________________?

A. 12 bar diameters
B. 18 bar diameters
C. 24 bar diameters
D. 30 bar diameters
Answer» D. 30 bar diameters
111.

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_______________?

A. 18 bar diameters
B. 24 bar diameters
C. 30 bar diameters
D. 36 bar diameters
Answer» D. 36 bar diameters
112.

The horizontal portion of a step in a stairs case, is known as_________________?

A. Rise
B. Flight
C. Winder
D. Tread
Answer» E.
113.

The floor slab of a building is supported on reinforced cement floor beams. The ratio of the end and intermediate spans is kept______________?

A. 0.7
B. 0.8
C. 0.9
D. 0.6
Answer» D. 0.6
114.

The effective width of a column strip of a flat slab, is_______________?

A. One-fourth the width of the panel
B. Half the width of the panel
C. Radius of the column
D. Diameter of the column
Answer» C. Radius of the column
115.

The effective span of a simply supported slab, is_______________?

A. Distance between the centres of the bearings
B. Clear distance between the inner faces of the walls plus twice the thickness of the wall
C. Clear span plus effective depth of the slab
D. None of these
Answer» C. Clear span plus effective depth of the slab
116.

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________________?

A. 4 mm
B. 5 mm
C. 6 mm
D. 7 mm
Answer» E.
117.

The diameter of main bars in R.C.C. columns, shall not be less than________________?

A. 6 mm
B. 8 mm
C. 10 mm
D. 12 mm
Answer» E.
118.

The diameter of longitudinal bars of a column should never be less than_____________?

A. 6 mm
B. 8 mm
C. 10 mm
D. 12 mm
Answer» E.
119.

The design of heel slab of a retaining wall is based on the maximum bending moment due to______________?

A. Its own weight
B. Weight of the soil above it
C. Load of the surcharge, if any
D. All the above
Answer» E.
120.

The design of a retaining wall assumes that the retained earth________________?

A. Is dry
B. Is free from moisture
C. Is not cohesive
D. All the above
Answer» E.
121.

the column head support a flat slab, is generally kept The diameter of_____________?

A. 0.25 times the span length
B. 0.25 times the diameter of the column
C. 4.0 cm larger than the diameter of the column
D. 5.0 cm larger than the diameter of the column
Answer» B. 0.25 times the diameter of the column
122.

The breadth of a ribbed slab containing two bars must be between______________?

A. 6 cm to 7.5 cm
B. 8 cm to 10 cm
C. 10 cm to 12 cm
D. 12 cm to 15 cm
Answer» C. 10 cm to 12 cm
123.

The angle of repose of a soil is the maximum angle which the outer face of the soil mass makes_______________?

A. With the horizontal
B. With the vertical
C. With the perpendicular to the inclined plane of the soil
D. None of these
Answer» B. With the vertical
124.

The angle of internal friction of soil mass is the angle whose_______________?

A. Tangent is equal to the rate of the maximum resistance to sliding on any internal inclined plane to the normal pressure acting on the plane
B. Sine is equal to the ratio of the maximum resistance to sliding on any internal inclined plane to the normal pressure acting on the plane
C. Cosine is equal to the ratio of the maximum resistance sliding on any internal inclined plane to the normal pressure acting on the plane
D. None of these
Answer» B. Sine is equal to the ratio of the maximum resistance to sliding on any internal inclined plane to the normal pressure acting on the plane
125.

The anchorage value of a hook is assumed sixteen times the diameter of the bar if the angle of the bend, is___________________?

A. 30°
B. 40°
C. 45°
D. All the above
Answer» E.
126.

The amount of reinforcement for main bars in a slab, is based upon___________________?

A. Minimum bending moment
B. Maximum bending moment
C. Maximum shear force
D. Minimum shear force
Answer» C. Maximum shear force
127.

The allowable tensile stress in mild steel stirrups, reinforced cement concrete, is_______________?

A. 1400 kg/cm2
B. 190 kg/cm2
C. 260 kg/cm2
D. 230 kg/cm2
Answer» B. 190 kg/cm2
128.

The advantage of reinforced concrete, is due to_______________?

A. Monolithic character
B. Fire-resisting and durability
C. Economy because of less maintenance cost
D. All the above
Answer» E.
129.

The advantage of a concrete pile over a timber pile, is_______________?

A. No decay due to termites
B. No restriction on length
C. Higher bearing capacity
D. All the above
Answer» E.
130.

Post tensioning system_______________?

A. Was widely used in earlier days
B. Is not economical and hence not generally used
C. Is economical for large spans and is adopted now a days
D. None of these
Answer» E.
131.

Piles are usually driven by________________?

A. Diesel operated hammer
B. Drop hammer
C. Single acting steam hammer
D. All the above
Answer» E.
132.

Pick up the true statement from the following?

A. Plain ceiling provides the best property diffusing light
B. In the absence of beams, it is easier to install piping
C. In the absence of beams, it is easier to paint
D. All the above
Answer» E.
133.

Pick up the incorrect statement from the following_?

A. In the stem of a retaining wall, reinforcement is provided near the earth side
B. In the toe slab of a retaining wall, reinforcement is provided at the bottom of the slab
C. In the heel slab of a retaining wall, reinforcement is provided at the top of the slab
D. None of these
Answer» E.
134.

Pick up the incorrect statement from the following. The intensity of horizontal shear stress at the elemental part of a beam section, is directly proportional to__________________?

A. Shear force
B. Area of the section
C. Distance of the C.G. of the area from its neutral axis
D. Moment of the beam section about its neutral axis
Answer» E.
135.

Pick up the incorrect statement from the following: Tensile reinforcement bars of a rectangular beam_______________?

A. Are curtailed if not required to resist the bending moment
B. Are bent up at suitable places to serve as shear reinforcement
C. Are bent down at suitable places to serve as shear reinforcement
D. Are maintained at bottom to provide at least local bond stress
Answer» D. Are maintained at bottom to provide at least local bond stress
136.

Pick up the correct statement from the following_?

A. A pile is a slender member which transfers the load through its lower end on a strong strata
B. A pile is a slender member which transfers its load to the surrounding soil
C. A pile is a slender member which transfers its load by friction
D. A pile is a cylindrical body of concrete which transfers the load at a depth greater than its width
Answer» C. A pile is a slender member which transfers its load by friction
137.

Pick up the correct statement from the following__?

A. Lateral reinforcement in R.C.C. columns is provided to prevent the longitudinal reinforcement from buckling
B. Lateral reinforcement prevents the shearing of concrete on diagonal plane
C. Lateral reinforcement stops breaking away of concrete cover, due to buckling
D. All the above
Answer» E.
138.

Pick up the assumption for the design of a pre-stressed concrete member from the following_______________?

A. A transverse plane section remains a plane after bending
B. During deformation limits, Hook’s law is equally applicable to concrete as well as to steel
C. Variation of stress in reinforcement due to changes in external loading is negligible
D. All the above
Answer» E.
139.

per unit run exerted by the Total pressure on the vertical face of a retaining wall of height retained earth weighing per unit volume, is___________________?

A. wh [(1 – )/(1 + sin )]
B. wh² [(1 – )/(1 + sin )]
C. wh² [(1 – )/2(1 + sin )]
D. wh² [(1 – )/3(1 + sin )]
Answer» D. wh² [(1 – )/3(1 + sin )]
140.

On piles, the drop must be at least_______________?

A. 80 cm
B. 100 cm
C. 120 cm
D. 140 cm
Answer» D. 140 cm
141.

On an absolutely rigid foundation base, the pressure will________________?

A. Be more at the edges of the foundation
B. Be uniform
C. Not be uniform
D. Be zero at the centre of the foundation
Answer» D. Be zero at the centre of the foundation
142.

on a circular slab of radius , the maximum radial moment at the centre of the If is the load slab, is WR²/16_____________?

A. 2WR²/16
B. 3WR²/16
C. 5WR²/16
D. NON OF THESE
Answer» C. 5WR²/16
143.

mutually perpendicular principal stresses acting on a soil mass, the normal stress If p1 and p2 are________________?

A. [(p – p p p to the principal plane carrying the principal stress p1, is: sin 2
B. [(p – p p p cos 2
C. [(p p p – p cos 2
D. [(p p p – p /2] sin 2
Answer» D. [(p p p – p /2] sin 2
144.

Minimum spacing between horizontal parallel reinforcement of the same size should not be less than________________?

A. One diameter
B. 2.5 diameters
C. 3 diameters
D. 3.5 diameters
Answer» B. 2.5 diameters
145.

Minimum spacing between horizontal parallel reinforcement of different sizes, should not be less than________________?

A. One diameter of thinner bar
B. One diameter of thicker bar
C. Twice the diameter of thinner bar
D. None of these
Answer» C. Twice the diameter of thinner bar
146.

longitudinal bars and lateral stirrups, is__________________?

A. Stress in concrete × area of concrete
B. Stress in steel × area of steel
C. Stress in concrete × area of concrete + Stress in steel × area of steel
D. None of these
Answer» D. None of these
147.

Long and short spans of a two way slab are l and l and load on the slab acting on strips parallel to lx and ly be wx and wy respectively. Accordingy to xRankine Grashoff theory___________________?

A. (wx/wy) = (ly/lx)
B. (wx/wy) = (ly/lx)²
C. (wx/wy) = (ly/lx)4
D. None of these
Answer» D. None of these
148.

Lapped splices in tensile reinforcement are generally not used for bars of size larger than______________?

A. 18 mm diameter
B. 24 mm diameter
C. 30 mm diameter
D. 36 mm diameter
Answer» E.
149.

is the pre-stressed force applied to the tendon of a rectangular pre-stressed beam whose area of cross section is and sectional modulus is . The maximum stress in the beam, subjected to a maximum bending moment , is_________________?

A. f = (P/A) + (Z/M)
B. f = (A/P) + (M/Z)
C. f = (P/A) + (M/Z)
D. f = (P/A) + (M/6Z)
Answer» D. f = (P/A) + (M/6Z)
150.

is the pre- stressed force applied to tendon of a rectangular pre-stressed beam whose area of cross section is and sectional modulus is . The minimum stress on the beam subjected to a maximum bending moment is________________?

A. f = (P/A) – (Z/M)
B. f = (A/P) – (M/Z)
C. f = (P/A) – (M/Z)
D. f = (P/A) – (M/6Z)
Answer» D. f = (P/A) – (M/6Z)