Civil Engineering Objective Question

A simple field test carried out to determine deterioration of stones when immersed in water is known as

(A) Absorption test
(B) Moh’s hardness test
(C) toughness test
(D) Smith’s test
Ans - D

The machine used to determine hardness of stone is called

(A) Dorry’s testing machine
(B) Deval testing machine
(C) Brinell Hardness testing machine
(D) Rockwell hardness test machine
Ans - A

The main disadvantage of concrete blocks used for masonry as compared to bricks is

(A) lower strength
(B) higher moisture content
(C) more requirement of mortar
(D) Shrinkage due to moisture movement
Ans - D

Ordinary lime mortar is cured by

(A) water
(B) air
(C) covering it with sand
(D) exposing to high temperature
Ans - B

The total percentage of dicalcicum silicate and tricalcium silicate in all types of Portland cement is around

(A) 50%
(B) 60%
(C) 70%
(D) 90%
Ans - C

White cement is white in colour due to

(A) use of limestone and china clay free from metal oxides
(B) its modified manufacturing process
(C) specific chemical treatment given to ordinary cement
(D) none of these
Ans - A

The fineness of cement is expressed as

(A) mm
(B) m2/kg
(C) grade
(D) kg/m3
Ans - B

Soundness test is carried out on cement to determine.

(A) sound penetration capacity of cement
(B) the presence of sound material in cement
(C) the presence of uncombined lime in cement
(D) none of these
Ans - C

The apparatus used for measuring soundness of cement is

(A) Vicat’s apparatus
(B) Le Chatelier’s apparatus
(C) Briquette apparatus
(D) Lechate apparatus
Ans - B

In Vicat’s apparatus, the cross-sectional area of needle used is_ , and time to penetrate __ is used to measure initial setting time of cement.

(A) 1 mm2, 33-35 mm
(B) 10 mm2, 20-25 mm
(C) 1 mm2, 0.5 mm
(D) 5 mm2, 5 mm
Ans - A

The main advantage of adding pozzolanas in cement is

(A) longer life
(B) reduced cost and permeability of concrete
(C) slower setting time
(D) faster setting time
Ans - B

The most undesirable properties of water used for making concrete or mortar are:

(A) high concentration of carbonates
(B) high concentration of bicarbonates
(C) high concentrations of sulfate and chloride
(D) high concentration of silicates
Ans - C

The main undesirable properties of concrete are:

i) Undergoes shrinkage
ii) Requires careful attention during manufacturing, placing, and curing
iii) Has lower tensile strength
iv) For equal load, cement members are heavier than steel members
(A) i and iv only (B) i, ii, and iv only
(C) i, ii, iii, and iv (D) ii, iii, and iv only
Ans - B

Test carried out to determine tensile strength of concrete is called

(A) split test or Brazilian test
(B) Vee-Bee test
(C) triaxial loading test
(D) compression test
Ans - A

RMC is acronym of

(A) Rapidly mixed concrete
(B) Ready mixed concrete
(C) Readily mix concrete
(D) Recently mixed concrete
Ans - B

Ratio of plastic moment to yield moment is known as

(A) Moment co-efficient
(B) Shape factor
(C) Plastic modulus
(D) Poisson ratio
Ans - B

In plastic analysis of structures, the segment between any two successive plastic hinges is assumed to deform as ________.

(A) A plastic material
(B) A rigid material
(C) An elastic material
(D) An inelastic material
Ans - B

The ratio of axial deformation to the original length of the body is known as

(A) Lateral Strain
(B) Linear stress
(C) Linear Strain
(D) Poisson’s ratio

Ans - C

If longitudinal strain is tensile, the lateral strain will be……

(A) tensile
(B) compressive
(C) zero
(D) not determined
Ans - B

Complimentary shear stresses are the shear stresses acting on a set of planes which are

(A) having zero normal stress
(B) having maximum normal stress
(C) at an angle of 45° to each other
(D) orthogonal to each other

Ans - D

Poisson’s ratio is defined as the ratio of

(A) longitudinal stress to linear stress
(B) longitudinal strain to lateral strain
(C) lateral stress to longitudinal stress
(D) lateral strain to longitudinal strain
Ans - D

Bulk modulus K is defined as a ratio of

(A) Direct stress to volumetric strain
(B) Volumetric stress to direct strain
(C) Young’s modulus to volumetric strain
(D) Direct stress to torsional strain
Ans - A

At any point in a stressed body, the principal planes can be located by identifying a set of orthogonal planes passing through the point and having shear stress on it as

(A) zero
(B) maximum
(C) minimum
(D) anticlockwise
Ans - A

Modulus of Rigidity is defined as a ratio of

(A) Shear strain to shear stress
(B) Torsional stress to shear strain
(C) Shear stress to shear strain
(D) Torsional strain to shear stress
Ans - C

If a plane truss satisfies the condition m = 2j – 3 where m is number of member, and j is number of joints, then it is……

(A) Determinate internally
(B) Determinate externally
(C) Indeterminate internally
(D) Indeterminate externally
Ans - A

Moment area method is best suitable for finding

(A) Slope & deflection of cantilever beam
(B) Slope & deflection of continuous beam
(C) Deflection of simply supported beam
(D) Slope of fixed beam
Ans - A

In moment area method the slope of real beam at a section is represented by

(A) Bending moment of M/EI diagram
(B) Shear force of M/EI diagram
(C) Total area of M/EI diagram
(D) Area of Shear Force Diagram of real beam
Ans - B

A fixed or clamped support in real beam becomes…………in conjugate beam.

(A) Free
(B) Remains fixed
(C) Hinge
(D) Roller
Ans - A

Which of the following statements is not applicable to Unit Load Method?

(A) External and internal forces are in equilibrium
(B) The structure is determinate
(C) The material is strained well within elastic limit
(D) The structure is redundant
Ans - D

Slope deflection method is suitable for analysis of

(A) Continuous beam
(B) Simply supported beam
(C) Fixed beam
(D) Cantilever beam
Ans - A

A force equal to product of mass times acceleration and acting in direction opposite to acceleration is called

(A) Damping
(B) Friction
(C) Inertia force
(D) Equilibrant force
Ans - C

The ratio of change of dimension of the body to the original dimension is known as

(A) Strain
(B) Stress
(C) Force
(D) Pressure
Ans - A

The stress induced in a body, when subjected to two equal and opposite forces which are acting tangentially across the section is known as

(A) Compressive stress
(B) Tensile stress
(C) Shear stress
(D) Bending stress
Ans - C

The ratio of ultimate stress to the permissible stress is called….

(A) Factor of safety
(B) Design factor
(C) Stress factor
(D) Load factor
Ans - A

Civil Engineering Objective Question