2126: Which of the following are the public sector undertakings of the Government of India ?
1. Balmer Lawrie and Company Ltd.
2. Dredging Corporation of India
3. Educational Consultants of India Ltd.
Select the correct answer using the code given, below:
(a) 1 and 2 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3
2127: What is the role of ultraviolet (UV) radiation in the water purification systems?
1. It inactivates/kills the harmful micro-organism in water.
2. It removes all the undesirable odours from the water.
3. It quickens the sedimentation of solid particles, removes turbidity and improves the clarity of water.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
2128: Consider the following countries:
1. Denmark
2. Japan
3. Russian Federation
4. United Kingdom
5. United States of America
Which of the above are the members of the `Arctic Council?
(a) 1, 2 and 3
(b) 2, 3 and 4
(c) 1, 4 and 5
(d) 1, 3 and 5
2129: What is the number of terms in the series 117, 120, 123, 126,......, 333 ?
(a) 73
(b) 72
(c) 76
(d) 79
2130: In a school, out of 40 staff members, 30 are males. Some of the female teachers can sing while no male can sing. The principal invited six persons to a party by drawing lots. It was found that no member in the party could sing. Which of the following conclusions can be definitely drawn?
(a) Only males were invited to the party
(b) Some of the invitees were males and some were females who could not sing
(c) Only females, who could not sing, were invited to the party
(d) None of the above