1801: Which one of the following sets of elements was primarily responsible for the origin of life on the Earth?
(a) Hydrogen, Oxygen, Sodium
(b) Carbon, Hydrogen, Nitrogen
(c) Oxygen, Calcium, Phosphorus
(d) Carbon, Hydrogen, Potassium
1802: There are three tables containing two drawers each. It is known that one of the table contains a silver coin in each of its drawers, another table contains a gold coin in each drawer while the third table contains a silver coin in one drawer and a gold coin in the other. One of the drawers of a table is opened and found to contain a silver coin. What is the probability that the other drawer of that table contains a gold coin ?
(a) 1
(b) 0.5
(c) 0.25
(d) 0.75
1803: The water pollution in river is measured by the dissolved amount of
(a) Chlorine
(b) Ozone
(c) Nitrogen
(d) Oxygen
1804: Consider the following factors regarding an industry :
I. Capital investments
II. Business turnover
III. Labour force
IV. Power consumption.
Which of these determine the nature a size of the industry ?
(a) I, III and IV
(b) I, II and IV
(c) II, III and IV
(d) II and III
1805: Hawala transactions relate to payments
(a) received in rupees against overseas currencies and vice versa without going through the official channels
(b) received for sale/transfer of shares without going through the established stock exchanges
(c) received as commission for services rendered to overseas investors/buyers/ sellers in assisting them to get over the red tape
and/or in getting preferential treatment
(d) made to political parties or to individuals for meeting election expenses