Civil Engineering Quiz 52

1 / 50

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

none of the above

less-than 40?C

equal to 40?C

greater than 40?C

2 / 50

60 R rails are mostly used in_________?

Broad Gauge

Narrow Gauge

Metre Gauge

none of the above

3 / 50

Pick up the correct statement from the following?

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

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 to the surrounding soil

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

4 / 50

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

non carbonate hardness

total hardness ? total alkalinity

total hardness

total alkalinity

5 / 50

Different grades are joined together by a _______?

compound curve

reverse curve

vertical curve

transition curve

6 / 50

Hume steel pipes are_________?

Steel shell coated from inside with cement mortar

All.

Steel pipes

Steel shell coated from outside with cement mortar

7 / 50

Which of the following statements is correct ?

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

Upper critical Reynolds number is significant 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

8 / 50

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

error due to eccentricity of verniers

error due to inaccurate graduation

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

error due to displacement of station signals

9 / 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?

$5,025,000.00

$5,050,000.00

$5,010,000.00

$5,000,000.00

10 / 50

The treadle bar is provided____________?

near and parallel to inner side of both the rails

near and parallel to inner side of one of the rails

at right angle to the rail

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

11 / 50

Loose jaws of steel trough sleepers are made of__________?

cast steel

cast iron

spring steel

mild steel

12 / 50

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

viscosity

surface tension

cohesion

adhesion

13 / 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 + 12) chains

(6 + 15) chains

(6 + 18) chains

14 / 50

All reinforcement should be free from________?

loose mill scales

paints

All

loose rust

15 / 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

Bond

Bank notes

Securities

16 / 50

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

Electrically

Manually

Mechanically

Hydraulically

17 / 50

The minimum recommended diameter of sewers, is________?

5 cm

15 cm

20 cm

10 cm

18 / 50

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

only tensile stresses

none of the above

both (A) and (B)

only shear stresses

19 / 50

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

bottom chord area

effective span of bridge

heaviest axle load of engine

top chord area

20 / 50

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

10mm

19 mm

13mm

16mm

21 / 50

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

minimum gradient

exceptional gradient

limiting gradient

ruling gradient

22 / 50

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

gypsum

calcium chloride

none of the above

calcium carbonate

23 / 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 false but R is true

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

A is true but R is false

24 / 50

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

parallel to weir crest in both

at right angle and parallel to weir crest

at right angle to weir crest in both

parallel and at right angle to weir crest

25 / 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 __________?

4 m of water column

3.5 meters of water column

3 meters of water column

2 meters of water column

26 / 50

Increase in the moisture content in concrete________?

all of the above

does not change the strength

reduces the strength

increases the strength

27 / 50

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

20 mm/sec

55 mm/sec

35 mm/sec

65 mm/sec

28 / 50

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

0.4 to 1.0

0.2 to 0.4

2 to 4

5 to 7

29 / 50

The main disadvantage of oxidation pond is that_______?

BOD removal is very low

large area is required for construction

maintenance and operation cost are high

none of the above

30 / 50

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

to support the frame work of the roof

to prevent the walls from spreading outward

to prevent the tie beam from sagging at its centre

to receive the ends of principal rafter

31 / 50

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

below the center of buoyancy

above the center of buoyancy

below the center of gravity

above the center of gravity

32 / 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 ?

9.41%

9.01%

9.14%

9.31%

33 / 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 high water level

1.2 H to 1.25 H above the low water level

34 / 50

Rain drops are spherical because of___________?

surface tension forces

viscosity

air resistance

atmospheric pressure

35 / 50

With increase in moisture content, the bulking of sand______?

decreases

increases

first increases to a certain maximum value and then decreases

first decreases to a certain minimum value and then increases

36 / 50

Normally prestressing wires are arranged in the______?

center

lower part of the beam

anywhere

upper part of the beam

37 / 50

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

cohesion

surface tension

friction

viscosity

38 / 50

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

German method

Needle beam method

Italian method

Army method

39 / 50

Traps________?

Create symphonic action to increase the quick disposal of sewerage

Are used to trap the rats entering sewers

Dissolve the foul gases

Are water seals which prevent the entry of foul gases

40 / 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 uniformly distributed load w/unit length

None of these

An isolated load at mid span

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

41 / 50

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

15m from runway end

3 m from runway end

10 m from runway end

6 m from runway end

42 / 50

Degree of consolidation is_______?

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 drainage path and inversely proportional to time

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

43 / 50

Gypsum consists of_____?

H2S and C02

Lime and H20

C02 and calcium

CaS04 and H20

44 / 50

The most common cause of acidity in water is______?

oxygen

nitrogen

carbon dioxide

hydrogen

45 / 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_________?

increases by 25%

increases by 50%

decreases by 33.3%

increases by 33.3%

46 / 50

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

B/4

B/2

B/6

B/3

47 / 50

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

three phase system

one phase system

two phase system with soil and air

two phase system with soil and water

48 / 50

In resources levelling_______?

uniform demand of resources is achieved

total duration of project is increased

total duration of project is reduced

cost of project is controlled

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

Differential monometer is used to measure ______________?

difference of pressure between two points

atmospheric pressure

very low pressure

pressure in pipes, channels etc.

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