civil engineering MCQs – Page 130

Practise multiple-choice questions from civil engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

civil engineering Mcqs
2581. Pick up the correct statement from the following ?
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A. The three elements of topology are adjacency, containment, and connectivity

B. Topological characteristics of an object are independent of scale measurement

C. Topology describes the geometric characteristic of objects which do not change under transformations and are independent of any coordinate system

D. All of these
2582. The most widely used pump for lifting sewage is_________________?
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A. Pneumatic ejector

B. Centrifugal pump

C. Air pressure pump

D. Reciprocating pump

2583. If a 2% solution of sewage sample is incubated for 5 days at 20C and the dissolved oxygen depletion was found to be 8 mg/l. The BOD of the sewage is_________________?
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A. 300 mg/l

B. 400 mg/l

C. 200 mg/l

D. 100 mg/l

2584. Hydraulic mean radius is_______________?
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A. Cross-sectional area/wetted perimeter

B. Mean of radii in a pipe line of varying cross -sections

C. Difference in heads between two points in circular pipes

D. Mean radius of sewer

2585. An association of two or more persons for the purpose of engaging into a business for profit is called ____________________?
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A. Partnership

B. Corporation

C. Proprietorship

D. Entrepreneurship

2586. What is the change in cost per unit variable change called ?
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A. Variable cost

B. Incremental cost

C. Fixed cost

D. Supplemental cost

2587. What is the factor name of the formula [i(1+i)^n]/[((1+i)^n)-1] ?
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A. Uniform series sinking fund

B. Single payment present worth

C. Capital recovery

D. Uniform gradient future worth

2588. The ratio of maximum sewage flow to average sewage flow for mains up to 1 m in diameter, is___________________?
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A. 4

B. 2.0

C. 1.5

D. 3

2589. Ventilating shafts are provided to a sewer line at every__________________?
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A. 100 m

B. 300 m

C. 200 m

D. 150 m

2590. The formula which accepts the value of rugosity coefficient n = 0.012 to be used in Mannings formula, is given by______________________?
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A. Bazin

B. Kutter

C. William-Hazen

D. Crimp and Bruges
2591. Aggregation of individuals formed for the purpose of conducting a business and recognized by law as a fictitious person is called ________________________?
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A. Corporation

B. Partnership

C. Stockholders

D. Investors

2592. For the open drain (N = 0.025) shown in the below figure, the discharge is________________?
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A. 26.88 cumecs

B. 28.88 cumecs

C. 27.88 cumecs

D. 29.88 cumecs

2593. The liquid wastes from kitchens, bath rooms and wash basins, is not called________________?
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A. None of these

B. Liquid waste

C. Sullage

D. Sewage
2594. A cylindrical ejector having its height 2 m fills after every 10 minutes with a peak sewage discharge of 0.0157 cumec. The diameter of the ejector chamber, is_____________________?
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A. 2.50 m

B. 2.45 m

C. 2.40 m

D. 2.30 m

2595. What refers to the saving which takes place because goods are not available for consumption rather than consumer really want to save ?
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A. Forced saving

B. Compulsory saving

C. Consumer saving

D. All of the above

2596. The bottom of the sewage inlet chamber of septic tanks, is provided an outward slope_________________?
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A. 1 in 20

B. 1 in 10

C. 1 in 5

D. 1 in 15

2597. Facultative bacteria survive in_____________________?
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A. The presence of oxygen

B. The absence of oxygen

C. Both cases A. and B.

D. Neither A. nor B.

2598. Bottom openings 15 cm 15 cm in the standing baffle wall are provided________________?
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A. 22.5 cm c/c

B. 30 cm c/c

C. 15 cm c/c

D. 50 cm c/c

2599. Which one of the following statement is correct ?
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A. All of these

B. Radiant energy expressed in Joules, is the energy associated with electromagnetic radiation

C. The rate of transfer of radiant energy is called flux and is expressed in watts

D. The radiant energy which falls upon a surface is termed as irradiance

2600. The original record of a business transaction is recorded in this book_____________?
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A. Account book

B. Work book

C. Ledger

D. Journal