Civil Engineering MCQs

Q:

What is the last step in chain surveying?

A) Reconnaissance B) Marking
C) Fixing D) Running survey lines
 
Answer & Explanation Answer: D) Running survey lines

Explanation: After having completed the preliminary work, the chaining may be started from the base line. The work in running a survey line is twofold, to chain the line and to locate the adjacent details.

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Category: Civil Engineering MCQs
Sub Category: Surveying Mcqs

4123
Q:

Plasticizers are used in situations ___________

A) Where high degree of workability is required B) Where medium degree of workability is required
C) Where very low degree of workability is required D) Where low degree of workability is required
 
Answer & Explanation Answer: A) Where high degree of workability is required

Explanation: The decrease in the water/cement ratio enhances the concrete’s strength and longevity. Plasticizers are sometimes used in mass concrete to lower the cement content and hydration heat. Where low degree of workability is required like Deep beams, column and beam junctions.

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3206
Q:

Which of the below property of aggregates is not desirable?

A) Smooth texture B) Well graded
C) Angular shape D) Smaller size
 
Answer & Explanation Answer: C) Angular shape

Explanation: Aggregates should provide space for cement paste so as to lubricate the area. The parameters like texture, size, shape, grading are to be considered. Larger size, cubical, round and rough textured aggregates are preferred.

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1617
Q:

The shrinkage of concrete in prestressed members results in ___________

A) Shortening B) Elongation
C) Bulking D) Stressing
 
Answer & Explanation Answer: A) Shortening

Explanation: The shrinkage of concrete in prestressed members is due to the gradual loss of moisture which results in changes in volume, rich mixes exhibit relatively greater shrinkage than lean mixes since the contraction of the cement gel increases with the cement content, the shrinkage also depends upon the degree of hardening of the concrete at the commencement of drying and the shrinkage of concrete in prestressed members results in a shortening of tensioned wires and hence contributes to the loss of stress.

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1486
Q:

The highest CBR number is required for __________

A) Pavement B) Sub grade
C) Sub base D) Base
 
Answer & Explanation Answer: B) Sub grade

Explanation: CBR number decreases with an increase in height, the soil requires the highest CBR and the pavement requires the lowest CBR.

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1480
Q:

A pretensioned concrete beam 200mm wide and 300mm deep, is prestressed by straight wires carrying an initial force of 150kn at eccentricity of 50mm, area of steel wires is 188mm2. Find initial stress in steel?

A) 1400 B) 800
C) 200 D) 100
 
Answer & Explanation Answer: B) 800

Explanation: Not available for this question

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1203
Q:

Road lighting is a __________

A) Advantage for users B) Disadvantage for users
C) Economically profitable D) Obstruction for users
 
Answer & Explanation Answer: A) Advantage for users

Explanation: Road lighting is an added advantage for users, even headlight of vehicles may be sufficient but it would be better if it is provided.

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1163
Q:

If one of the vernier is at 0° then another vernier reading shows / also shows ______

A) 90° B) 0°
C) 180° D) 45°
 
Answer & Explanation Answer: C) 180°

Explanation: Turning the upper and lower plates in opposite directions till the zero of the one of the vernier is against the zero of the scale. Next clamp the plates together by upper clamp and lower clamp and bring the two zeros into exact coincidence by turning upper tangent screw. Now when we take reading on another vernier it should be 180°, if there is no instrument error.

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Category: Civil Engineering MCQs
Sub Category: Surveying Mcqs

1125