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Latest RIICO Assistant Site Engineer Civil Exam Question (Objective Questions), MCQ in English

Subjects : Civil Engineering

Question Bank RIICO Assistant Site Engineer (Civil) Exam Part II - English
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Civil Engineering

Question 1Single Answer
Consider the following statements :
1. There will be no defects in select grade timbers.
2. The codal values for strength of grade-II timer without defects may be reduced by 37.5%.
3. For timber used as columns, the permissible stress in ungraded timbers is adopted with a multiplying factor of 0.50.
4. In case of wind force and earthquakes, a modification factor of 1.33 is adopted. Which of the above statements are correct ? 
  1. A
    1 and 3 only
  2. B
    1 and 4 only
  3. C
    2 and 4 only
  4. D
    2 and 3 only
Question 2Single Answer
Consider the following statements regarding timber :
1. The strength of timber increases by Kiln seasoning.
 2. Cutting of wood is to be done prior to treatment.
3. Water seasoning is good for prevention of warping.
4. ASCU treatment enhances the strength of wood. Which of the above statements are correct ?
  1. A
    1, 2 and 3 only
  2. B
    2, 3 and 4 only
  3. C
    1, 3 and 4 only
  4. D
    1, 2, 3 and 4
Question 3Single Answer
Gase(s) emitted during rotting or decomposition of timber is /are mainly
  1. A
    Methane and Hydrogen
  2. B
    Hydrogen Sulphide
  3. C
    Carbonic acid and Hydrogen
  4. D
    Ammonia
Question 4Single Answer
Efflorescence of bricks is due to
  1. A
    Excessive burning of bricks
  2. B
    High silt content in brick clay
  3. C
    High porosity of bricks
  4. D
    Soluble salts present in parent clay
Question 5Single Answer
Disintegration of bricks masonry walls is primarily due to
1. Efflorescence
2. Magnesium sulphate in brick  
3. Calcined clay admixtures
4. Kankar nodules
Which of the a above statements are correct ? 
  1. A
    1, 2 and 3 only
  2. B
    1, 2 and 4 only
  3. C
    3 and 4 only
  4. D
    1, 2, 3 and 4
Question 6Single Answer
Consider the following test :
1. Transverse strength test
2. Water absorption test
3. Impact test
4. Breaking strength test
Which of the above are relevant to testing of tiles ?
  1. A
    1, 2 and 3 only
  2. B
    1, 2 and 4 only
  3. C
    3 and 4 only
  4. D
    1, 2, 3 and 4
Question 7Single Answer
Which of the following statements is/are correct regarding the strength of cement ?
1. Particle sizes less than 3 m increases the viscous nature of the cement.
2. Finer particles in cement can be replaced by fly-ash to improve the strength.
  1. A
    1 only
  2. B
    2 only
  3. C
    Both 1 and 2
  4. D
    Neither 1 nor 2
Question 8Single Answer
The constituent compound in Portland cement which reacts immediately with water, and also sets earliest, is
  1. A
    Tricalcium silicate
  2. B
    Dicalcium silicate
  3. C
    Tricalcium aluminate
  4. D
    Tetracalcium aluminoferrite
Question 9Single Answer
Which of the following statements are correct with regard to cement mortar ?
1. Workability of cement mortar can be improved by addition of lime.
2. Fly-ash cement is economical in plastering jobs.
3. Addition of saw dust improves workability.
4. Sand in mortar can be replaced by finely crushed fire bricks.
  1. A
    1, 2, 3 and 4
  2. B
    1, 2 and 3 only
  3. C
    3 and 4 only
  4. D
    1, 2 and 4 only
Question 10Single Answer
In a concrete mix of proportion 1 : 3 : 6, the actual quantity of sand, which is judged to have undergone 15% bulking, per unit volume of cement, will be
  1. A
    3.00
  2. B
    3.45
  3. C
    4.50
  4. D
    6.00
Question 11Single Answer
Which method of curing of concrete is recommendable for rapid gain of strength of concrete ?
  1. A
    Sprinkling water
  2. B
    Membrane curing
  3. C
    High-pressure steam curing
  4. D
    Infrared radiation curing
Question 12Single Answer
Which of the following is appropriate as  simple field method for assesing consistency of concrete ?
  1. A
    Compacting factor
  2. B
    Slump test
  3. C
    Vee-Bee test
  4. D
    Kelly Ball test
Question 13Single Answer
Which of the following are relatable to Autoclaved Aerated Concrete ?
1. Light weight
2. Strong
3 Inorganic
4. Nontoxic
  1. A
    1, 2 and 3 only
  2. B
    1, 2 and 4 only
  3. C
    3 and 4 only
  4. D
    1, 2, 3 and 4
Question 14Single Answer
The workability of concrete becomes more reliable depending on
1. Aggregate-cement ratio
2. Time of transit
3. Grading of the aggregate
  1. A
    1 only
  2. B
    2 only
  3. C
    3 only
  4. D
    1, 2 and 3
Question 15Single Answer
Which of the following statements are correct for stresses acting on mutually perpendicular faces of a plane element ?
1. The sum of the normal stresses in mutually perpendicular planes is equal to the sum of the principal stresses.
2. The shearing stresses in two mutually perpendicular planes are equal in magnitude and direction.
3. Maximum shear stress is half of the difference between principal stresses.
  1. A
    1, 2 and 3 only
  2. B
    1 and 2 only
  3. C
    2 and 3 only
  4. D
    1 and 3 only
Question 16Single Answer
Which of the following statements are correct?
1. Strain in the direction of applied stress is known as longitudinal strain.
2. Tensile stress results in tensile strain in linear and lateral directions.
3. Strains in all directions perpendicular to the applied stress are known as lateral strain. 4. Ratio of change in volume to original volume is known as volumetric strain.
  1. A
    1, 2 and 3 only
  2. B
    1, 3 and 4 only
  3. C
    3 and 4 only
  4. D
    1, 2, 3 and 4
Question 17Single Answer
In the cross-section of a timber, cambium layer can occur in
  1. A
    Inner Bark and Sap Wood
  2. B
    Pith and Heart Wood
  3. C
    Sap Wood and Heart Wood
  4. D
    Outer Bark and Sap Wood
Question 18Single Answer
Consider the following statements :
1. In the infinitesimal strain theory, dilatation is taken as an invariant.
2. Dilatation is not proportional to the algebraic sum of all normal stresses.
3. The shearing modulus is always less than the elastic modulus.
Which of the above statements is/are correct ?
  1. A
    1 only
  2. B
    1 and 2 only
  3. C
    2 only
  4. D
    1, 2 and 3
Question 19Single Answer
Which one of the following represents constitutive relationship ?
  1. A
    Vertical displacements in a structure
  2. B
    Rotational displacements in a structure
  3. C
    System of forces in equilibrium
  4. D
    Stress-strain behavior of a material
Question 20Single Answer
Principal stresses at a point are 80 N/mm2 and 40 N/mm2, both tensile. The yield stress in simple tension for this material is 200 N/mm2. The values of factors of safety according to maximum principal stress theory and maximum shear stress theory, respectively, are
  1. A
    2.5 and 2.5
  2. B
    2.5 and 5
  3. C
    5 and 1.67
  4. D
    6 and 2.50
Question 21Single Answer
The principal stresses at a point are 2  (tensile) and  (compressive), and the stress at elastic limit for the material in simple tension is 210 N/mm2. According to maximum shear strain theory, the value of  at failure is
  1. A
    70 N/mm2
  2. B
    105 N/mm2
  3. C
    140 N/mm2
  4. D
    210 N/mm2
Question 22Single Answer
Which of the following statements are correct ?
1. Cranes are employable in moving and/or hoisting loads.
2. With the use of dipper and stick, power shovels can be used as hoes.
3. Ovedrive for higher speeds is a facility often used comfortably in the working of a tractor.
4. Clam shells are less desirable than draglines if the material is water-saturated.
  1. A
    1 and 4 only
  2. B
    1 and 2 only
  3. C
    2 and 3 only
  4. D
    3 and 4 only
Question 23Single Answer
Two similar bars of Steel and Aluminium are heated to a same temperature. Forces are applied at the ends of the bars to maintain their lengths unaltered. If the  ratio of Young’s moduli of Steel and Aluminium is 3, and the ratio of the coefficients of thermal expansion of Steel to that of aluminium is 0.5, what is the stress on the Aluminium bar if the stress on the Steel bar is 100 MPa ?
  1. A
    16.7 MPa
  2. B
    66.7 MPa
  3. C
    136.7 MPa
  4. D
    150.0 MPa
Question 24Single Answer
A structural steel beam has an unsymmetrical I-cross-section. The overall depth of the beam is 200 mm. The flange stresses at the top and bottom are 120 N/mm2 and 80 N/mm2, respectively. The depth of the natural axis from the top of the beam will be
  1. A
    120 mm
  2. B
    100 mm
  3. C
    80 mm
  4. D
    60 mm
Question 25Single Answer
In the analysis of beams subjected to loads, the point with Nil Bending Moment can be a
1. Point of Contraflexure
2. Point of Maximum Shear Force
3. Point of Inflection
Which of the above statements is/are correct ?
  1. A
    1 only
  2. B
    2 only
  3. C
    3 only
  4. D
    1, 2 and 3
Question 26Single Answer
A tractor has a permissible loaded speed of 200 m/minute, which can increase by 25% when the load is removed/deposited. Generally, it is operated at 80% of the permissible speed (loaded unloaded). It works at a location where haul distance is 120 m. Rest allowance per round-trip is taken as 50 seconds on an average. Fixed time per trip, for loading and unloading and turnaround, etc., is 30 seconds. What is its effective cycle time?
  1. A
    157 seconds
  2. B
    161 seconds
  3. C
    173 seconds
  4. D
    182 seconds
Question 27Single Answer
The purpose of lateral ties in a short RC column is to
  1. A
    Avoid buckling of longitudinal bars
  2. B
    Facilitate compaction of concrete
  3. C
    Increase the load carrying capacity of the column
  4. D
    Facilitate construction
Question 28Single Answer
When a two-hinged parabolic arch is subjected to a rise in ambient temperature, the horizontal thrust at the support will
  1. A
    Increase
  2. B
    Decrease
  3. C
    Remain same
  4. D
    Increase or decrease depending on the span
Question 29Single Answer
In the slope-deflection equations, deformations are considered to be caused by
  1. A
    Shear forces and bending moments only
  2. B
    Axial forces, shear forces and bending moments
  3. C
    Axial forces and bending moments only
  4. D
    Bending moments only
Question 30Single Answer
The maximum bending moment caused by a set of concentrated moving loads is
  1. A
    Always at the midpoint of span
  2. B
    Between the midpoint and concentrated load next to the midpoint of the span
  3. C
    Not definable
  4. D
    Always under a load close to the centroid of the set of loads
Question 31Single Answer
Force method of analysis of a structure is particularly preferred when
1. The degrees of freedom of the structure become large
2. The structure has less number of static, and more number of kinematic, indeterminacies
3. The structure has more numbers of static, and less numbers of kinematic, indeterminacies
  1. A
    1 only
  2. B
    2 only
  3. C
    3 only
  4. D
    1, 2 and 3
Question 32Single Answer
Stiffness matrix method is the category of
1. Compatibility method
2. Displacement method
3. Force method
4. Equilibrium method
  1. A
    1 and 3 only
  2. B
    1 and 4 only
  3. C
    2 and 3 only
  4. D
    2 and 4 only
Question 33Single Answer
Muller-Breslau Principal for obtaining influence lines is applicable to
1. Statically determinate beams and frame
2. Statically indeterminate structures, the material of which is elastic, and follows Hooke’s law.
3. Any statically indeterminate structure
  1. A
    1 and 2 only
  2. B
    1 only
  3. C
    2 only
  4. D
    1 and 3 only
Question 34Single Answer
The plastic neutral axis
1. Divides the given section into two equal halves
2. Divides the given section into two unequal parts
3. Lies on the centroidal axis of the section
  1. A
    1 only
  2. B
    2 only
  3. C
    3 only
  4. D
    2 and 3 only
Question 35Single Answer
The plastic moment capacity MP is
  1. A
    Less than the yield moment
  2. B
    Equal to the yield moment
  3. C
    Greater than the yield moment
  4. D
    Dependent on section dimensions
Question 36Single Answer
Web crippling is caused by
  1. A
    Excessive bending moment
  2. B
    Failure of web under point loads
  3. C
    Width of flanges
  4. D
    Column action of web
Question 37Single Answer
The block shear failure of a bolted joint in tension occurs because of
1. Use of higher shear strength bolts
2. Use of paltes with higher bearing strength
  1. A
    1 only
  2. B
    2 only
  3. C
    Both 1 and 2
  4. D
    Neithter 1 nor 2
Question 38Single Answer
As per IS code, the maximum longitudinal pitch allowed in bolted joints of tension members is nominally
  1. A
    12 times the thickness of the plate
  2. B
    12 times the diameter of the bolt
  3. C
    16 times the thickness of the plate
  4. D
    16 times the diameter of the bolt
Question 39Single Answer
ISMB 100 (rx = 40 mm, ry = 10 mm) has been used as a column in a industrial shed. Along the minor axis, the the column has restraints in the form of purlins at 1.0 m intervals. Effective length factor along major and minor axes are 1.2 and 1.0, respectively. If the slenderness ratio is restricted to 120, the maximum column height will be
  1. A
    1.0 m
  2. B
    2.4 m
  3. C
    4.0 m
  4. D
    4.8 m
Question 40Single Answer
As per IS 800 – 2007, the permitted slenderness ratio for a bracing member in case of hangers shall be
  1. A
    140
  2. B
    145
  3. C
     150
  4. D
    160
Question 41Single Answer
A rectangular beam of depth d is under bending. Load has been gradually increased when the top fibre has obtained five times the strain at the first yield. What depth of the beam will still respond by elastic conditions?
  1. A
    0.16 d
  2. B
    0.20 d
  3. C
    0.25 d
  4. D
    0.40 
Question 42Single Answer
The ultimate moment capacity of a mild steel section is usually
  1. A
    Equal to the plastic moment capacity
  2. B
    More than the yield moment capacity
  3. C
    Let than the yield moment capacity
  4. D
    More than the plastic moment capacity
Question 43Single Answer
The portal bracing in a truss-bridge is used to
  1. A
    Transfer load from top of end posts to bearings
  2. B
    Maintain the rectangular shape of the bridge cross-section
  3. C
    Stiffen the structure laterally
  4. D
    Prevent the buckling of top chord under side sway
Question 44Single Answer
Consider the following cases in the design of reinforced concrete members in flexure:
1. Over-reinforced section
2. Tension failure
3. Compression failure
4. Under-reinforced section
Which of the above cases are considered for safe design of R.C members in flexure?
  1. A
    1 and 2 only
  2. B
    2 and 4 only
  3. C
    3 and 4 only     
  4. D
    1 and 3 only
Question 45Single Answer
The bond between steel and concrete is mainly due to
1. Mechanical resistance
2. Pure adhesive resistance
3. Frictional resistance
  1. A
    1 and 2 only
  2. B
    1 and 3 only
  3. C
    2 and 3 only
  4. D
    1, 2 and 3
Question 46Single Answer
The carbonation process is demonstrated more by
  1. A
    Atmospheric corrosion
  2. B
    Chloride corrosion
  3. C
    Stress corrosion
  4. D
    Hydrogen embrittlement
Question 47Single Answer
When a sprially reinforced short column is loaded axially, the concrete inside the core is subjected to
  1. A
    Bending and compression
  2. B
    Biaxial compression
  3. C
    Triaxial compression
  4. D
    Uniaxial compression
Question 48Single Answer
In a reinforced concrete section, shear stress distribution is diagrammatically
  1. A
    Wholly Parabolic
  2. B
    Wholly Rectangular
  3. C
    Parabolic above NA and Rectangular below NA
  4. D
    Rectangular above NA and Parabolic below NA
Question 49Single Answer
As per IS 456 – 2000, the maximum permissible shear stress, TCmax' is based on
  1. A
    Diagonal tension failure
  2. B
    Diagonal compression failure
  3. C
    Flexural tension failure
  4. D
    Flexural compression failure
Question 50Single Answer
Footings shall be designed to sustain the
1. Applied loads
2. Moments and forces under relatable loading conditions
3. Induced reactions
  1. A
    1and 2 only
  2. B
    1 and 3 only
  3. C
    2 and 3 only
  4. D
    1, 2 and 3
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