Civil Engineering Quiz 41

1 / 50

If the staff is not held vertical at a level?ling station, the reduced level calculated from the observation would be______?

none of the above

less than true R.L

true R.L

more than true R.L

2 / 50

A compound bar consists of two bars of equal length. Steel bar cross -section is 3500 mm2and that of brass bar is 3000 mm2. These are subjected to a compressive load 100,000 N. If Eb = 0.2 MN/mm2 and Eb = 0.1 MN/mm2, the stresses developed are__________?

b = 5 N/mm2 s = 10 N/mm2

b = 6 N/mm2 s = 12 N/mm2

b = 8 N/mm2 s = 16 N/mm2

b = 10 N/mm2 s = 20 N/mm 2

3 / 50

When two equally important roads cross roughly at right angles, the suitable shape of central island is_______?

elliptical

tangent

turbine

circular

4 / 50

What are the two classifications of goods and services ?

Ready-made and made-to-order

Consumer and producer

Raw and finished

Local and imported

5 / 50

If is the diameter of upper circular portion, the overall depth of New Egg shaped sewer section, Is____________?

1.425 D

1.625 D

1.250 D

1.350 D

6 / 50

Pick up the correct statement from the following ?

Permeability is expressed as the ratio of the magnetic flux density to the field strength of the magnetizing field

All

Permeability is a measure of conducting the magnetic lines of force in the material

Permeability is a measure of the extent to which magnetic lines of force can penetrate a medium

7 / 50

The two important forces for a floating body are__________?

buoyancy, inertial

buoyancy, gravity

inertial, gravity

buoyancy, pressure

8 / 50

The flow back of profit plus depreciation form a given project is called __________?

Economic return

Cash flow

Capital recovery

Earning value

9 / 50

The C.G. of a solid hemisphere lies on the central radius 3r______?

at distance ? from the plane base 3r

at distance ? from the plane base or

10 / 50

Pick up the correct statement from the following?

The water supply pipes get clogged if flow velocity is less than self cleansing velocity

The water supply pipes carry pure water free from solid particles

The sewers may be carried up and down the hills and valleys

The sewer pipes are generally laid along level hills

11 / 50

Bending moment at any section in a conjugate beam gives in the actual beam________?

slope

deflection

curvature

bending moment

12 / 50

parabolic arch of span and rise , is given by The equation of a_______?

y = h/l? ? (1 ? x )

y = 2h/l? ? (1 ? x)

y = 3h/l? ? (1 ? x)

y = 4h/l? ? (1 ? x)

13 / 50

Percentage of bacterial load that can be removed from water by the process of plain sedimentation is about______?

10 to 25

100

14 / 50

In a cavity wall, both leaves of which are load bearing, the effective thickness is taken as_______?

sum of thickness of both leaves

larger of (B) and (C)

two-third of the sum of thickness of both the leaves

actual thickness of the stronger leaf

15 / 50

When the speed of traffic flow becomes zero,then______?

traffic density and traffic volume both attain maximum value

traffic density attains maximum value whereas traffic volume becomes zero

traffic density becomes zero whereas traffic volume attains maximum value

traffic density and traffic volume both become zero

16 / 50

The maximum spacing of manholes specified by Indian standard in sewers upto 0.3 m diameter is___________?

45 m

75 m

20 m

30 m

17 / 50

The lower edge of the pitched roof, from where the rain water of the roof surface drops down, is known as_____?

gable

eaves

hip

ridge

18 / 50

Alkalinity in water is expressed as milli-grams per litre in terms of equivalent______?

calcium hydroxide

sodium carbonate

calcium carbonate

magnesium carbonate

19 / 50

An R.C. beam of 25 cm width and 50 cm effective depth has a clear span of 6 metres and carries a U.D.L. of 3000 kg/m inclusive of its self weight. If the lever arm constant for the section is 0.865, the maximum intensity of shear stress, is______?

21.5 kg/cm 2

7.6 kg/cm2

11.4 kg/cm2

8.3 kg/cm2

20 / 50

Asbestos pipes are _____?

All

high flexible to accommodate deflection upto 12?

light in weight and easy to transport

highly resistant to corrosion

21 / 50

The least thickness of class B cast iron (spun) pipe, is________?

7.9 mm

8.6 mm

7.2 mm

10 mm

22 / 50

The force in AC of the truss shown in the given figure, is________?

4t compression

5t compression

5t tension

4t tension

23 / 50

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 20?C, B.O.D of the sewage is________?

250 mg/l

150 mg/l

100 mg/l

50 mg/l

24 / 50

What type of bond where the corporation?s owner name are recorded and the interest is paid periodically to the owners with their asking for it ?

Registered bond

Callable bond

Incorporators bond

Preferred bond

25 / 50

Admixtures which cause early setting, and hardening of concrete are called______?

retarders

workability admixtures

accelerators

air entraining agents

26 / 50

For hydro-dynamically smooth boundary, the friction coefficient for turbulent flow is______?

a function of Reynolds number and relative roughness

dependent only on Reynolds number

dependent on relative roughness only

constant

27 / 50

Which of the following is a fixed type mooring accessory ?

bollard

buoys

anchors

cables

28 / 50

Hydrodynamic pressure due to earthquake acts at a height of________?

3H747t below the water surface

3H/47I above the base

4H/371 above the base

4H737t below the water surface where H is the depth of water

29 / 50

A tractor whose weight is 20 tonnes has a drawbar pull of 2500 kg, when operated on a level road having a rolling resistence of 30 kg per tonne. If this tractor is operated on a level road having a rolling resistance of 40 kg per tonne, then the drawbar pull of the tractor will_______?

reduce by 200 kg

increase by 200 kg

increase by 250 kg

reduce by 250 kg

30 / 50

Electromagnetic radiation______?

Is capable to travel across space

Once generated, remains self-propagating

All

Produces a time varying magnetic field and vice versa

31 / 50

In a lifting machine a weight of 5 kN is lifted through 200 mm by an effort of 0.1 kN moving through 15 m. The mechanical advantage and velocity ratio of the machine are respectively____________?

75 and 75

75 and 50

50 and 75

50 and 50

32 / 50

The mode of failure of a very short masonry member having h/t ratio of less than 4 is by ______?

vertical tensile splitting

shear

any of the above

buckling

33 / 50

Under the same conditions, which of the following shapes of water surface will give the highest rate of evaporation ?

concave water surface

independent of shape of water surface

convex water surface

flat water surface

34 / 50

What is the change in cost per unit variable change called ?

Variable cost

Fixed cost

Supplemental cost

Incremental cost

35 / 50

Depth or height of the arch is the_______?

perpendicular distance between springing line and extrados

vertical distance between springing line and intrados

perpendicular distance between intra-dos and extrados

none of the above

36 / 50

Reaction time of a driver______?

increases with increase in speed

decreases with increase in speed

none of the above

is same for all speeds

37 / 50

Which is NOT an essential element of an ordinary annuity ?

The payments are made at equal interval of time.

The amounts of all payments are equal.

Compound interest is paid on all amounts in the annuity.

The first payment is made at the beginning of the first period.

38 / 50

The resultant upward pressure of the fluid on an immersed body is called________?

All are correct

center of pressure

upthrust

buoyancy

39 / 50

If the flame of a miner?s safety lamp in the upper layers of the sewer forms an explosive, the sewer certainly contains______?

Oxygen

Methane

Hydrogen sulphide

Carbon dioxide

40 / 50

Mr. Bacani borrowed money from the bank. He received from the bank P1,842 and promised to repay P2,000 at the end of 10 months. Determine the rate of simple interest?

12.19%

12.03%

10.29%

11.54%

41 / 50

The force in BF of the truss shown in given figure, is______?

4t compression

4.5t compression

4.5t tension

4t tension

42 / 50

While using three moments equation, a fixed end of a continuous beam is replaced by an additional span of_________?

zero length

zero moment of inertia

none of the above

infinite length

43 / 50

If the monthly mean of average daily temperature for the hottest month of the year is 25? C and the monthly mean of the maximum daily temperature of the same month of the year is 46? C, the airport reference temperature is___________?

35.5?C

25?C

32?C

48?C

44 / 50

The brick work is not measured in cu m in case of______?

Half brick wall

Brick work in arches

One or more than one brick wall

Reinforced brick work

45 / 50

Which one of the following statements is not correct________?

the sine of the angle of repose is equal to coefficient to friction

the tangent of the angle of friction is equal to coefficient of friction

the angle of repose is equal to angle of friction

the tangent of the angle of repose is equal to coefficient of friction

46 / 50

Efficiency of a riveted joint, having the minimum pitch as per IS : 800, is________?

50%

60%

40%

70%

47 / 50

Stress strain curve of high tensile steel______?

does not show definite yield point but yield point is defined by 2% proof stress

does not show definite yield point but yield point is defined by 0.1% proof stress

does not show definite yield point but yield point is defined by 0.2% proof stress

has a definite yield point

48 / 50

In series-pipe problems______?

a trial solution is not necessary

the discharge through each pipe is added to obtain total discharge

the discharge is same through each pipe

the head loss is same through each pipe

49 / 50

Which of the following instrument can be used for measuring speed of an aeroplane _______?

hot wire anemometer

pitot tube

Orifice plate

Venturimeter

50 / 50

Relative density of a compacted dense sand is approximately equal to_____________?

0.4

0.6

1.2

0.95

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