# Civil Engineering - Structural Design Specifications

Exercise : Structural Design Specifications - Section 1
31.
Pick up the correct precaution while spilicing the reinforcing bars
These are provided away from the sections of maximum stress
These are staggered
These are provided if the B.M. is more than 50% of M.R.
Not more than half the bars are spliced at a section
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

32.
If Δ is the deviation of the individual test strength from the average of n samples, the standard deviation of concrete of the given grade is
Answer: Option
Explanation:
No answer description is available. Let's discuss.

33.
The over all depth of a solid slab is 20 cm and effective depth is 15 cm. The horizontal distance between parallel main reinforcement should not be more than
30 cm
40 cm
45 cm
60 cm
Answer: Option
Explanation:
No answer description is available. Let's discuss.

34.
The ratio of minimum compressive strength on 15 cm cubes prepared with the concrete of M 20 grade and M 40 grade, at 7 days should be at least
1/3
1/2
3/2
2.0
Answer: Option
Explanation:
No answer description is available. Let's discuss.

35.
The minimum compressive strength on 15 cm cubes of M 30 grade concrete at 7 days, should be a minimum of
7 N/mm2
10 N/mm2
20 N/mm2
30 N/mm2
Answer: Option
Explanation:
No answer description is available. Let's discuss.