Civil Engineering Quiz 52

1 / 50

The general expression for the B.M. of a beam of length l is the beam carries M = (wl/2) x ? (wx?/2)______?

A load varying linearly from zero at one end to w at the other end

None of these

An isolated load at mid span

A uniformly distributed load w/unit length

2 / 50

The percentage of filtered water, which is used for backwashing in rapid sand filters, is about_____?

5 to 7

0.4 to 1.0

2 to 4

0.2 to 0.4

3 / 50

Traps________?

Are used to trap the rats entering sewers

Create symphonic action to increase the quick disposal of sewerage

Dissolve the foul gases

Are water seals which prevent the entry of foul gases

4 / 50

If the grit in grit chambers is 4.5 million litres per day, its cleaning is done___________?

Mechanically

Manually

Electrically

Hydraulically

5 / 50

The total gap on both sides between the inside edges of wheel flanges and gauge faces of the rail is kept as________?

19 mm

10mm

13mm

16mm

6 / 50

When the axis of load lies in the plane of rivet group, then the rivets are subjected to_______?

only tensile stresses

only shear stresses

none of the above

both (A) and (B)

7 / 50

Increase in the moisture content in concrete________?

does not change the strength

all of the above

increases the strength

reduces the strength

8 / 50

Which one of the following tunnelling methods is used for laying under ground sewers ?

Needle beam method

German method

Italian method

Army method

9 / 50

The pressure in the air space above an oil (sp. gr. 0.8) surface in a tank is 0.1 kg/cm?. The pressure at 2.5 m below the oil surface will be __________?

3.5 meters of water column

3 meters of water column

4 m of water column

2 meters of water column

10 / 50

The maximum permissible eccentricity for no tension at the base of a gravity dam is_________?

B/2

B/6

B/4

B/3

11 / 50

A loan for P50,000 is to be paid in 3 years at the amount of P65,000. What is the effective rate of money ?

9.14%

9.01%

9.31%

9.41%

12 / 50

Hume steel pipes are_________?

Steel pipes

Steel shell coated from outside with cement mortar

All.

Steel shell coated from inside with cement mortar

13 / 50

Rain drops are spherical because of___________?

atmospheric pressure

surface tension forces

air resistance

viscosity

14 / 50

Which of the following statements is correct ?

Upper critical Reynolds number is significant in pipe flow problems.

Lower critical Reynolds number is of no practical significance in pipe flow problems.

Upper critical Reynolds number is the number at which turbulent flow changes to laminar flow

Lower critical Reynolds number has the value 2000 in pipe flow

15 / 50

Loose jaws of steel trough sleepers are made of__________?

cast iron

mild steel

cast steel

spring steel

16 / 50

The desirable rate of change of cant deficiency in case of Metre Gauge is______?

65 mm/sec

20 mm/sec

35 mm/sec

55 mm/sec

17 / 50

When the degree of saturation is zero, the soil mass under consideration represents_____?

one phase system

two phase system with soil and water

two phase system with soil and air

three phase system

18 / 50

Due to a rise in temperature, the viscosity and the unit weight of the percolating fluid are reduced to 60% and 90% respectively. If other things remain constant, the coefficient of permeability_________?

decreases by 33.3%

increases by 25%

increases by 50%

increases by 33.3%

19 / 50

Pick up the correct statement from the following?

A pile is a slender member which transfers its load to the surrounding soil

A pile is a slender member which transfers the load through its lower end on a strong strata

A pile is a cylindrical body of concrete which transfers the load at a depth greater than its width

A pile is a slender member which transfers its load by friction

20 / 50

Differential monometer is used to measure ______________?

atmospheric pressure

very low pressure

difference of pressure between two points

pressure in pipes, channels etc.

21 / 50

Normally prestressing wires are arranged in the______?

anywhere

lower part of the beam

upper part of the beam

center

22 / 50

Assertion Discharging the effluents from the oxidation ponds just up stream of lakes or reservoirs is undesirable. Reason (R) : The discharged algae get settled in the reservoirs and cause anaerobic decomposition and other water qualities________?

Both A and R are true and R is the correct explanation of A

A is true but R is false

A is false but R is true

Both A and R are true but R is not a correct explanation of A

23 / 50

If the total hardness of water is greater than its total alkalinity, the carbonate hardness will be equal to_______?

total alkalinity

total hardness ? total alkalinity

total hardness

non carbonate hardness

24 / 50

Hudson?s formula gives the dead weight of a truss bridge as a function of________?

top chord area

heaviest axle load of engine

effective span of bridge

bottom chord area

25 / 50

Which of the following errors is not eliminated by the method of repetition of horizontal angle measurement ?

error due to wrong adjustment of line of collimation and trunnion axis

error due to inaccurate graduation

error due to eccentricity of verniers

error due to displacement of station signals

26 / 50

Softening point of bitumen to be used for read construction at a place where maximum temperature is 40? C should be_____?

equal to 40?C

none of the above

less-than 40?C

greater than 40?C

27 / 50

The treadle bar is provided____________?

at right angle to the rail

near and parallel to inner side of one of the rails

in the middle of the track a little in front of the toes of the tongue rail

near and parallel to inner side of both the rails

28 / 50

The function of king post in a king post roof truss is______?

to prevent the tie beam from sagging at its centre

to receive the ends of principal rafter

to support the frame work of the roof

to prevent the walls from spreading outward

29 / 50

The most common admixture which is used to accelerate the initial set of concrete is_____?

gypsum

calcium carbonate

calcium chloride

none of the above

30 / 50

Different grades are joined together by a _______?

transition curve

vertical curve

reverse curve

compound curve

31 / 50

All reinforcement should be free from________?

paints

All

loose rust

loose mill scales

32 / 50

The reduced levels of points, 30 metres apart along the longitudinal section of a road portion between chainages 5 and 9 are shown in the given figure. If there is a uniform up-gradient of the road 120 in 1, the chainage of the point with no filling or cutting is_________?

None of these

(6 + 18) chains

(6 + 12) chains

(6 + 15) chains

33 / 50

Free surface of a liquid tends to contract to the smallest possible area due to force of ________?

surface tension

cohesion

viscosity

friction

34 / 50

Gypsum consists of_____?

C02 and calcium

H2S and C02

Lime and H20

CaS04 and H20

35 / 50

Runway threshold is indicated by a series of parallel lines starting from a distance of______?

10 m from runway end

15m from runway end

3 m from runway end

6 m from runway end

36 / 50

Falling drops of water become spheres due to the property of _______?

surface tension

adhesion

cohesion

viscosity

37 / 50

If H is the height of the wave expected, then the height of the breakwater is generally taken as_____________?

1.2 H to 1.25 H above the datum

1.2 H to 1.25 H above the mean sea level

1.2 H to 1.25 H above the low water level

1.2 H to 1.25 H above the high water level

38 / 50

60 R rails are mostly used in_________?

Metre Gauge

Broad Gauge

Narrow Gauge

none of the above

39 / 50

In resources levelling_______?

cost of project is controlled

uniform demand of resources is achieved

total duration of project is increased

total duration of project is reduced

40 / 50

The flow of water after spilling over the weir crest in chute spillway and side channel spillway respectively are________?

at right angle to weir crest in both

at right angle and parallel to weir crest

parallel to weir crest in both

parallel and at right angle to weir crest

41 / 50

For a floating body to be in stable equilibrium, its metacentre should be________ ?

below the center of buoyancy

above the center of buoyancy

above the center of gravity

below the center of gravity

42 / 50

The most common cause of acidity in water is______?

nitrogen

oxygen

hydrogen

carbon dioxide

43 / 50

The main disadvantage of oxidation pond is that_______?

maintenance and operation cost are high

none of the above

large area is required for construction

BOD removal is very low

44 / 50

Degree of consolidation is_______?

directly proportional to drainage path and inversely proportional to time

directly proportional to time and inversely proportional to square of drainage path

directly proportional to time and inversely proportional to drainage path

directly proportional to square of drainage path and inversely proportional to time

45 / 50

With increase in moisture content, the bulking of sand______?

increases

decreases

first decreases to a certain minimum value and then increases

first increases to a certain maximum value and then decreases

46 / 50

The maximum design gradient for vertical profile of a road is_____?

exceptional gradient

limiting gradient

ruling gradient

minimum gradient

47 / 50

What is defined as a financial security note issued by business or corporation and by the government as a means of borrowing long-term fund ?

T-bills

Bank notes

Bond

Securities

48 / 50

The minimum recommended diameter of sewers, is________?

5 cm

10 cm

15 cm

20 cm

49 / 50

The radius of gyration of a rectangular section (depth D, width B) from a centroidal axis parallel to the width is_________?

D/2

50 / 50

The Saudi Arabian Oil Refinery developed an oil well which is estimated to contain 5,000,000 barrels of oil at an initial cost of $ 50,000,000. What is the depletion charge during the year where it produces half million barrels of oil? Use Unit or Factor method in computing depletion?

$5,000,000.00

$5,025,000.00

$5,050,000.00

$5,010,000.00

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