298) 1% of voids in a concrete mix would reduce its strength by about

10%

15%

20%

Answer is:

0.05

Structural Engineering I MCQ with Answers

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299) The fineness modulus of fine aggregate is in the range of

2.0 to 3.5

3.5 to 5.0

5.0 to 7.0

6.0 to 8.5

Answer is:

2.0 to 3.5

300) The factor of safety for

steel and concrete are same

steel is lower than that for concrete

steel is higher than that for concrete

none of the above

Answer is:

steel is lower than that for concrete

Explanation:

The ratio of ultimate stress to the working stress is known as factor of safety. Its value is more than one.

301) Examine the following statements : i) Factor of safety for steel should be based on its yield stress, ii) Factor of safety for steel should be based on its ultimate stress, iii) Factor of safety for concrete should be based on its yield stress, iv) Factor of safety for concrete should be based on its ultimate stress. The correct statements are

(i) and (iii)

(i)and(iv)

(ii) and (iii)

(ii) and (iv)

Answer is:

(i)and(iv)

302) For a reinforced concrete section, the shape of shear stress diagram is

wholly parabolic

wholly rectangular

parabolic above neutral axis and rectangular below neutral axis

rectangular above neutral axis and parabolic below neutral axis

Answer is:

parabolic above neutral axis and rectangular below neutral axis

Structural Engineering I MCQ with Answers

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298) 1% of voids in a concrete mix would reduce its strength by about

0.05

Structural Engineering I MCQ with Answers

Related Structural Engineering I MCQ with Answers

299) The fineness modulus of fine aggregate is in the range of

2.0 to 3.5

300) The factor of safety for

steel is lower than that for concrete

(i)and(iv)

302) For a reinforced concrete section, the shape of shear stress diagram is

parabolic above neutral axis and rectangular below neutral axis

Structural Engineering I MCQ with Answers