UPSC IES Key

Can you provide me the UPSC IES Civil Engineering Objective Question Paper - I (Set - A): 28/05/2016 with its answer key?

[shikha]

The UPSC IES Civil Engineering Objective Question Paper - I (Set - A): 28/05/2016 with its answer key is as follows:

1. Consider the following statements: 1.
1. There will be no defects in select grade timbers.
2. The codal values for strength of grade-II timber without defects may be reduced by
37.5%.
3. For timber used as columns, the permissible stress in ungraded timbers is adopted
with a multiplying factor of 0.50.
4. In case of wind force and earthquakes, a modification factor of 1.33 is adopted.
Which of the above statements are correct?
(a) 1 and 3 only (b) 1 and 4 only
(c) 2 and 4 only (d) 2 and 3 only
Ans. (b)

2. Consider the following statements regarding timber: 2.
1. The strength of timber increases by Kiln seasoning.
2. Cutting of wood is to be done prior to treatment.
3. Water seasoning is good for prevention of warping.
4. ASCU treatment enhances the strength of wood.
Which of the above statements are correct?
(a) 1, 2 and 3 only (b) 2, 3 and 4 only
(c) 1, 3 and 4 only (d) 1, 2, 3 and 4
Ans. (a)

3. Gase(s) emitted during rotting or decomposition of timber is/are mainly 3.
(a) Methane and Hydrogen (b) Hydrogen Sulphide
(c) Carbonic acid and Hydrogen (d) Ammonia
Ans. (c)

4. Efflorescence of bricks is due to 4.
(a) Excessive burning of bricks (b) High silt content in brick clay
(c) High porosity of bricks (d) Soluble salts present in parent clay
Ans. (d)

5. Disintegration of brick masonry walls is primarily due to 5.
1. Efflorescence 2. Magnesium sulphate in bricks
3. Calcined clay admixtures 4. Kankar nodules
Which of the above statements are correct ?
(a) 1, 2 and 3 only (b) 1, 2 and 4 only
(c) 3 and 4 only (d) 1, 2, 3 and 4
Ans. (b)