151: Four wires of same material and of dimensions as under as stretched by a load of same magnitude separately. Which one of them will be elongated maximum ?
(a) Wire of 1 m length and 2 mm diameter
(b) Wire of 2 m length and 2 mm diameter
(c) Wire of 3 m length and 1.5 mm diameter
(d) Wire of 1 m length and 1 mm diameter
152: Consider the following statements:
India continues to be dependent on imports to meet the requirement of oilseeds in the country because:
1. Farmers prefer to grow food grains with highly remunerative support prices.
2. Most of the cultivation of oilseed crops continues to be dependent on rainfall.
3. Oils from the seeds of tree origin and rice bran have remained unexploited.
4. It is far cheaper to import oilseeds than to cultivate the oilseed crops.
Which of the statements given above are correct?
(a) 1 and 2
(b) 1, 2 and 3
(c) 3 and 4
(d) 1, 2, 3 and 4
153: In a question of a test paper, there are five items each under List-A and List-B. The examinees are required to match each item under List-A with its corresponding correct item under List-B. Further, it is given that:
(i) no examinee has given the correct answer
(ii) answers of no two examinees are identical
What is the maximum number of examinees who took this test?
(a) 24
(b) 26
(c) 119
(d) 129
154: A, B, C, D, E, F and G are members of a family consisting of 4 adults and 3 children, two of whom, F and G are girls, A and D are brothers and A is a doctor. E is an engineer married to one of the brothers and has two children. B is married to D and G is their child. Who is C ?
(a) G's brother
(b) F's father
(c) E's daughter
(d) A's son
155: Consider the following statements :
Coke is one of the materials of the charge added to blast furnace for the production of steel/iron. Its function is to
I. act as a reducing agent.
II. remove silica associated with the iron ore.
III. function as fuel, to supply heat.
IV. act as an oxidizing agent.
Of these statements:
(a) I and II are correct
(b) II and IV are correct
(c) I and III are correct
(d) III and IV are correct