Online Civil Engineering Test - Structural Design Specifications Test

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Total number of questions: 20.
Time allotted: 30 minutes.
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In adverse circumtances, the reinforced concrete member immersed in sea water or subjected to sea spray, the maximum permissible cover for the reinforcing bars, should not exceed

40 mm

50 mm

60 mm

70 mm

75 mm

[#]

For battened struts, the effective length is increased by

7.5%

10%

12.5%

15%

[#]

The effective and actual lengths of a cantilever are same if continuous at the support,

unstrained against torsion at the support and free at the end

with partial restraint against torsion of the support and free at the end

restrained against torsion at the support and free at the end

none of the these.

[#]

The distance between, rivet line and the nearest edge of a joint not exposed to weather, is taken (where t is thickness in mm of the thinner outside plate).

6 t

8 t

10 t

12 t

[#]

Generally acceptable nominal size of aggregates for reinforced concrete, is

10 mm

15 mm

20 mm

25 mm

40 mm

[#]

For concreting of heavily reinforced sections without vibration, the workability of concrete should be

very low

low

medium

high.

[#]

For the proportions

1 :

the maximum size of aggregates, is 10 mm

1 : 2 the maximum size of aggregates, is 20 mm

1 :

the maximum size of aggregates, is 40 mm

All the above.

[#]

If b is actual width of a flange, D_t is the thickness of the flange, b_ω is the breath of the web, l_o is the distance between the points of zero moments in a beam, the effective width of the flange, is

[#]

Columns are designed for a minimum eccentricity equal to 1/30 (unsupported length ofthe column), subject to a minimum of

5 mm

10 mm

15 mm

20 mm

[#]

10.

The minimum horizontal distance between two parallel main reinforcing bars, is

the diameter of the bar if their diameters are same

the diameter of the longer bar if their diameters are unequal

5 mm more than nominal maximum size of the coarse aggragate

greatest value of the above.

[#]

11.

For calculating critical compression stress in bending C_s for sections symmetrical about the x-x axis, from the formula

, the value of G is taken

0.2 E

0.3 E

0.4 E

0.5 E

[#]

12.

The characteristic strength of concrete is the strength of material if its test result is not less than

10%

[#]

13.

For nominal mix concrete M 20, the required quantity of water per 50 kg. of cement, is

60 litres

45 litres

34 litres

30 litres

[#]

14.

The individual part of the structures is subjected to a load test for 24 hours by applying a load equal to full dead load of the structure plus

imposed load

1.15 times imposed load

1.25 times imposed load

1.3 times imposed load.

[#]

15.

The development length of each bar of three bars bundled together is increased by

10%

20%

33%

50%

[#]

16.

Minimum diameter of the lateral ties should not be less than

4 mm

5 mm

6 mm

10 mm

[#]

17.

The flat slab is a reinforced concrete slab with or without drops and is supported

on columns without column head

on columns with column head

on beams

on columns with or without column heads

[#]

18.

As per IS : 800-1982, the coefficient of expansion for steel per degree centigrade per unit length, is

0.000011

0.000012

0.000013

0.000014

[#]

19.

As per IS : 1982, the permissible axial tension in rolled I-beams and channels, is

1500 kg/cm²

1800 kg/cm²

1400 kg/cm²

1420 kg/cm²

[#]

20.

The thickness of the rectangular plate for the cap or base of a solid round steel columns, is calculated from the formula

where d is

the reduced diameter of the column

the dimension of the base

the diameter of the base

the diameter of the top.

[#]

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Online Civil Engineering Test - Structural Design Specifications Test

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