civil engineering Mcqs
2551. The rational formula for peak drainage discharge, was evolved by_________________?
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A. Fruhling

B. Lloyd David

C. Kuichling

D. All of these
2552. Consider the following statements?
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A. Masonry in lime mortar has better resistance against rain penetration and is less liable to crack when compared to masonry in cement mortar.</strong>

B. Masonry in rich cement mortar though having good strength with high shrinkage is much liable for surface cracks.

C. Lime mortar possesses poor workability and poor water retentivity and also suffers high shrinkage.

D. ch of these statements are correct?

2553. For efficient working of a sewer, it must be ensured that _____________?
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A. Minimum velocity of 0.45 m/sec, is maintained at its minimum flow

B. A maximum velocity of 0.90 m/sec, is maintained at its maximum flow

C. Both A. and B.

D. Neither A. nor B.

2554. Pick up the correct statement from the following?
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A. An increase of phytoplankton increases the back scattering in the green region

B. An increase of phytoplankton absorbs the bule region rapidly

C. An increase of phytoplankton decreases the back scattering in the green region

D. Phytoplankton contains photosynthetically active pigment

2555. The sewer pipes__________________?
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A. All the above

B. Are designed for generating self-cleansing velocities at different discharge

C. Carry sewage as gravity conduits

D. Should resist the wear and tear caused due to abrasion

2556. The declining balance method is also known as ____________________?
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A. Double percentage method

B. Modified sinking fund method

C. Modified SYD method

D. Constant percentage method
2557. Pick up the correct statement from the following ?
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A. The minimum design velocity of sewer pipes is taken as 0.8 m/sec

B. The sewer pipes of sizes less than 0.4 m diameter are designed as running full at maximum discharge

C. The sewer pipes of sizes greater than 0.4 m diameter are designed as running 2/3rd or 3/4th full at maximum discharge

D. All the above
2558. Pick up the correct statement from the following?
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A. Water equivalent height of snow is the height of water column obtained by melting snow

B. The ratio of the up flux and down flux just above the snow surface, is called albedo

C. All of these

D. Spectral albedo of snow is calculated for the semi-infinite snow thickness

2559. For trunk sewers more than 1.25 m in diameter, the ratio of the maximum daily sewage flow to the average daily sewage flow is assumed________________?
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A. 2

B. 3

C. 2.5

D. 1.5
2560. What is another term for unit method for computing depletion ?
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A. Factor method

B. Percentage method

C. Sinking fund method

D. Initial cost method

2561. The Chezys constant C in the formula V = C_________________?
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A. Shape of the sewer

B. All the above

C. Size of the sewer

D. Roughness of sewer surface

2562. What is defined as the current assets minus inventories and prepaid expenses ?
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A. Profit margin ratio

B. Quick ratio

C. Price-earnings ratio

D. Return of investment ratio

2563. The asbestos cement sewers are_________________?
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A. Susceptible to corrosion by sulphuric acid

B. Light in weight

C. All the above

D. Not structurally strong to bear large compressive stress

2564. Traps_________________?
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A. Create symphonic action to increase the quick disposal of sewerage

B. Are water seals which prevent the entry of foul gases

C. Dissolve the foul gases

D. Are used to trap the rats entering sewers

2565. The minimum diameter of sewer to be adopted is_________________?
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A. 25 cm

B. 12.5 cm

C. 15 cm

D. 10 cm

2566. The disintegrating pump in which solid matter is broken up before passing out, is__________________?
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A. Reciprocating pump

B. Pneumatic ejector

C. Centrifugal pump

D. None of these

2567. Aerobic bacterias___________________?
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A. Consume organic matter as their food

B. All the above

C. Oxidise organic matter in sewage

D. Flourish in the presence of free oxygen

2568. What is the reduction in the money value of capital asset is called ?
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A. Deficit

B. Loss

C. Capital expenditure

D. Capital loss
2569. Boussinesqs equation for ascertaining unit pressure at a depth on sewers due to traffic loads, is__________________?
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A. pt = 3H3p/2Z5

B. pt = 3H3p/2 Z5

C. pt = 2 3p/3Z5

D. pt = 2H3p/3 Z5

2570. Return on investment ratio is the ratio of the_____________?
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A. Net income to owners equity

B. Net credit sales to average net receivable

C. Cost of goods sold to average cost of inventory at hand

D. Market price per share to earnings per share

2571. In case of bankruptcy of a partnership________________?
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A. The partnership assets (excluding the partners personal assets) only will be used to pay the liabilities

B. The partners personal assets are attached to the debt of the partnership

C. The partners nay sell stock to generate additional capital

D. The partners are not liable for the liabilities of the partnership

2572. Which one the following is a correct statement ?
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A. The vertical section of the soil extending into the parent material, is called profile

B. The transitional layer between two adjoining horizons is called boundary

C. The layers of the soil parallel to the earth surface are called horizons

D. All of these
2573. Hume steel pipes are__________________?
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A. Steel pipes

B. Steel shell coated from inside with cement mortar

C. Steel shell coated from outside with cement mortar

D. Both B. and C.
2574. Pick up the correct statement from the following?
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A. All of these

B. Frequency is the number of wave crests passing a fixed point in one second

C. Amplitude of a wave is the height of its crust from the mid-point

D. Frequency of a wave is measured in Hertz (Hz)

2575. What is the factor name of the formula (1+i)^-n ?
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A. Uniform gradient future worth

B. Single payment compound amount

C. Capital recovery

D. Single payment present worth
2576. In computing depreciation of an equipment, which of the following represents the first cost ?
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A. All of the above

B. The original purchase price and freight charges

C. Installation expenses

D. Initial taxes and permit fees

2577. The intensity of rain is expressed in________________?
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A. None of these

B. cm/day

C. cm/minute

D. cm/hour
2578. The first cost to be incurred if the piece of equipment now in place had been bought for a second hand dealer or some other business is called ____________________?
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A. In-place value

B. Material cost

C. Fixed cost

D. First cost

2579. running partially full with central angle , For a circular sewer of diameter__________________?
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A. a/A

B. All the above

C. r/R = [1

D. d/D = (1

2580. Skimming tanks are__________________?
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A. Tanks provided with self- cleansing screens

B. Improved version of grit chambers

C. Used to remove the grease and oil

D. Those from which sludge is skimmed out

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