536: Heat from the sun is received by the earth through:
(a) Conduction
(b) Convection
(c) Radiation
(d) None of the above
537: Six roads lead to a country. They may be indicated by letters X, Y, Z and digits 1, 2, 3. When there is storm, Y is blocked. When there are floods X, 1 and 2 will be affected. When road 1 is blocked, Z also is blocked. At a time when there are Hoods and a storm also blows, which road(s) can be used ?
(a) Z and 2
(b) Only Z
(c) Only 3
(d) Only Y
538: Mica is abundantly used in which of the following industries?
(a) Cement
(b) Electrical
(c) Plastic
(d) Fire resistance bricks
539: Consider the following statements
1. The quantity of imported edible oils is more than the domestic production of
edible oils in the last five years.
2. The Government does not impose any customs duty on all the imported edible
oils a special case.
Which of two statements given above is/are correct
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
540: With reference to Union Government, consider the following statements:
1. The number of Ministries at the centre on 15th August 1947 was 18.
2. The number of Ministries at the centre at present is 36.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2