civil engineering Mcqs
2651. A mathematical expression also known as the present value of annuity of one is called ____________________?
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A. Present worth factor

B. Sinking fund factor

C. Load factor

D. Demand factor

2652. What is a measure of the average speed with which accounts receivable are collected ?
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A. Receivable turnover

B. Quick ratio

C. Current ratio

D. Acid test ratio

2653. The normal values of over flow rates for secondary sedimentation tanks, ranges between__________________?
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A. 80,000 to 10,000 litres/sqm/day

B. 25,000 to 35,000 litres/sqm/day

C. 50,000 to 60,000 litres/sqm/day

D. 40,000 to 50,000 litres/sqm/day

2654. Is an artificial being created by operation of law, having the right of succession and the process, attributes and properties expressly authorized by the law or incident to its existence ?
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A. Organization

B. Partnership

C. Property

D. Corporation

2655. Pathogens (or pathogenic bacterias) in water may cause___________________?
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A. Dysentery

B. Typhoid

C. All the above

D. Cholera

2656. A rain sanitary sewer is constructed to carry_________________ ?
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A. Ground water

B. Storm sewage

C. Sanitary sewage

D. Surface water

2657. Using factor method, the depletion at any given year is equal to ?
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A. Initial cost of property times number of units sold during the year

B. Initial cost of property divided by the total units in property

C. Initial cost of property divided by the number of units sold during the year

D. Initial cost of property times number of unit sold during the year divided by the total units in property
2658. Pick up the correct statement from the following ?
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A. The larger the sewer in size, more will be velocity

B. The smaller the sewer in size, less will be velocity

C. The larger the sewer in size, no deposition will take place

D. The larger the sewer in size, deposition will take place
2659. For sewers, inverted siphon is provided for___________________?
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A. Two pipes

B. Four pipes

C. Three pipes

D. One pipe

2660. What is another term for current assets ?
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A. Fixed assets

B. Non-liquid assets

C. Liquid assets

D. Ccash

2661. If the depletion of oxygen is found to be 5 ppm after incubating a 2.5% solution of sewage sample for 5 days at 21C, B.O.D. of the sewage is_____________________?
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A. 200 ppm

B. 150 ppm

C. 50 ppm

D. 100 ppm

2662. The financial health of the company is measured in terms of______________?
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A. Relative risk

B. Solvency

C. All of the above

D. Liquidity

2663. All are classified under direct labor expenses EXCEPT one. Which one ?
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A. Assembly cost

B. Inspection cost

C. Supervision cost

D. Testing cost

2664. The flow back of profit plus depreciation form a given project is called ___________________?
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A. Economic return

B. Cash flow

C. Capital recovery

D. Earning value

2665. Which one of the following statements is correct ?
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A. Snow albedo falls at all wave length with the increase of grain size

B. The effect of grain size on reflection is maximum in the near-IR region

C. The effect of grain size on reflection is low in the visible region of the spectrum

D. All of these
2666. What is used to record historical financial transactions ?
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A. Bookkeeping system

B. Balance check

C. General journal system

D. Ledger system

2667. Primary treatment of sewage consists of removal of__________________?
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A. Oil and grease

B. Floating materials

C. Sand and girt

D. Large suspended organic solids
2668. The effluent of a septic tank is_________________?
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A. Foul and contains dissolved and suspended solids

B. None of these

C. Fit for discharge into any open drain

D. As good as that from a complete treatment

2669. The ability to convert assets to cash quickly is known as ________________?
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A. Insolvency

B. Solvency

C. Liquidity

D. Leverage

2670. The dimensions of a rectangular settling tank are: length 24 m, width 6 m and depth 3 m. If 2 hour detention period for tanks is recommended, the rate of flow of sewage per hour, is_____________________?
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A. 216 cu.m

B. 208 cu.m

C. 212 cu.m

D. 204 cu.m

2671. What is the simplest form of business organization ?
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A. Sole proprietorship

B. Corporation

C. Partnership

D. Enterprise

2672. The pH value of fresh sewage is usually ______________________?
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A. More than 7

B. Equal to zero

C. Equal to 7

D. Less than 7

2673. Pick up the correct statement from the following ?
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A. Small sewers are cleaned by flushing

B. Medium sewers are cleaned by cane rodding

C. Medium sewers may be cleaned by pills

D. All the above
2674. The true value of interest rate computed by equations for compound interest for a 1 year period is known as __________________?
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A. Nominal interest

B. Effective interest

C. Economic return

D. Expected return

2675. Gross margin is the ratio of the gross profit to _________________?
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A. Net sale

B. Inventory turnover

C. Owners equity

D. Quick assets

2676. The settling velocity of a spherical particle of diameter less than 0.1 mm as per Stocks law, is__________________?
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A. Vs = 218 (Gs Gw)d [(3T + 70)/100]

B. Vs = 418 (Gs Gw)d [(3T + 70)/100]

C. Vs = 218 (Gs Gw)d [(3T + 70)/100]

D. Vs = 418 (Gs Gw) d [(3T + 70)/100]

2677. What represents the share of participation in business organizations?
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A. Stock

B. Franchise

C. Partnership

D. Corporation

2678. What is an index of short-term paying ability ?
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A. Price-earnings ratio

B. Gross margin

C. Current ratio

D. Profit margin ratio

2679. Pick up the correct statement from the following?
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A. The solubility of oxygen in sewage is 95% that is in distilled water

B. Only very fresh sewage contains some dissolved oxygen

C. All the above

D. In treated sewage, 4 ppm of D.O. is essential

2680. In the activated sludge process__________________?
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A. Aeration is continued till stability

B. Sludge is activated by constant stirring

C. Aeration is done with an admixture of previously aerated sludge

D. Water is removed by centrifugal action

2681. A well oxidized sewage contains nitrogen mainly as___________________?
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A. Nitrites

B. Nitrates

C. None of these

D. Free ammonia

2682. Under the depletion allowance method in computing depreciation, the depletion charge is equal to either ________________ which ever is smaller ?
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A. 50% of the fixed percentage of gross income or 50% of the net taxable income

B. 50% of the fixed percentage of gross income or the net taxable income

C. Fixed percentage of gross income or 50% of the net taxable income

D. Fixed percentage of gross income or the net taxable income

2683. For non-scouring velocity 5 m/sec, the type of sewers generally preferred to, is____________________?
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A. Cement concrete sewers

B. Glazed bricks sewers

C. Stone ware sewers

D. Cast iron sewers

2684. Pick up the correct statement from the following?
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A. 4 ppm of Dissolved Oxygen (D.O.) is ensured before discharging the treated sewage in river

B. Solubility of oxygen in sewage is 95% of that of distilled water

C. All the above

D. Hydrogen sulphide gas in excess, may cause corrosion of concrete sewers

2685. The sewer which resists sulphide corrosion, is____________________?
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A. Cast iron sewer

B. R.C.C. sewer

C. Lead sewer

D. Brick sewer

2686. What is defined as the reduction or fall of the value of an asset due to constant use and passage of time ?
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A. Inflation

B. Depletion

C. Depreciation

D. Deflation

2687. The density of population over 40 hectares is 250/hectare. If water supply demand per day is 200 litres and sewage discharge is 80% of water supply, the sewage flow in sewers of separate system, is_____________________?
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A. 0.0556 cumec

B. 0.05556 cumec

C. 0.05552 cumec

D. 0.05554 cumec

2688. What refers to the claim of anyone to ownership ?
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A. Equity

B. Assets

C. Liability

D. Proprietorship

2689. Lead caulked joints are used for laying____________________?
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A. C.I. pipes

B. G.I. pipes

C. Stone ware pipes

D. Earthenware pipes
2690. Depletion of ozone layer in the outer atmosphere may cause___________________ ?
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A. Lung cancer

B. Bronchitis

C. Skin cancer

D. Heart disorder

2691. Sewer ventilating columns are generally placed at_______________?
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A. Upper ends of branch sewers

B. All the above

C. Distances 150 m to 300 m

D. Every change in the size of sewers

2692. In circular sewers if depth of flow is 0.2 times the full depth, the nominal gradient,______________?
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A. Is trebled

B. Is doubled

C. Is only provided

D. Is not enough

2693. The amount of oxygen consumed by the aerobic bacterias which cause the aerobic biological decomposition of sewage, is known_________________?
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A. Dissolved Oxygen (D.O.)

B. Chemical Oxygen Demand (C.O.D.)

C. None of these

D. Bio-Chemical Oxygen Demand (B.O.D.)

2694. 4-61. Kinematic viscosity is equal to________________?
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A. dynamicviscosity x density

B. same as dynamic viscosity

C. 1/dynamicviscosity x density

D. dynamic viscosity/density

E. density/dynamic viscosity

2695. The pressure at a point in a fluid will not be same in all the directions when the fluid is________________?
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A. viscous and static

B. moving

C. viscous

D. viscous and moving

E. inviscous and moving

2696. Before discharging the foul sewage into rivers, it is generally treated by_____________________?
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A. All the above

B. Sedimentation

C. Oxidation

D. Screening

2697. If the depletion of oxygen is found to be 2.5 mg/litre after incubating 2.5 ml of sewage diluted to 250 ml for 5 days at 20C, B.O.D. of the sewage is_________________?
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A. 100 mg/l

B. 250 mg/l

C. 50 mg/l

D. 150 mg/l

2698. In case of sewer lines_________________?
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A. Water test is carried out to check water tightness of the joints

B. Obstruction test is carried out with the help of smooth ball of diameter 13 mm

C. All the above

D. Test for straightness is carried out with the help of a lamp and mirror

2699. If no resistance is encountered by displacement, such a substance is known as___________________?
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A. perfect solid

B. ideal fluid

C. gas

D. fluid

E. water

2700. In primary sedimentation, the 0.2 mm inorganic solids get separated if specific gravity is_________________?
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A. 2.25

B. 2.55

C. 2.65

D. 2.5