Civil Engineering - Structural Design Specifications

Exercise :: Structural Design Specifications - Section 1

26. 

For the plain reinforcing bars in compression, the permissible design bond stress in tension, is increased by

A. 10%
B. 15%
C. 20%
D. 25%
E. 30%

Answer: Option D

Explanation:

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27. 

The cover to the main reinforced may be reduced up to one third of the specified cover but not less than

A. 5 mm
B. 7 mm
C. 10 mm
D. 15 mm

Answer: Option A

Explanation:

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28. 

The maximum compressive strength on 15 cm cubes of M 20 grade concrete at 7 days, should be a minimum of

A. 7 N/mm2
B. 10 N/mm2
C. 15 N/mm2
D. 20 N/mm2

Answer: Option B

Explanation:

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29. 

The reduced level of third floor of a building near a column is 205.350 m. The reduced levels of the undersides of four beams supporting the fourth floor framing into the column mutually perpendicular are 208.350 m, 208.450 m, 208.500 m and 208.550 m. The supported length of the column is

A. 3.000 m
B. 3.100 m
C. 3.150 m
D. 3.200 m

Answer: Option A

Explanation:

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30. 

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).

A. 6 t
B. 8 t
C. 10 t
D. 12 t

Answer: Option D

Explanation:

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