4566: Superconductors are so called because they
(a) Efficiently conduct heat from one hot body to another
(b) Offer no resistance to conduction of heat at high temperatures
(c) Offer no resistance to conduction of electricity at low temperatures
(d) Produce high temperatures while conducting electricity
4567: Who among the following constitute the National Development Council?
1. The Prime Minister
2. The Chairman, Finance Commission
3. Ministers of the Union Cabinet
4. Chief Ministers of the States
Select the correct answer using the codes given below.
(a) 1, 2 and 3 only
(b) 2 and 4 only
(c) 1, 3 and 4 only
(d) 1, 2, 3 and 4
4568: With reference to Agni - IV Missile, which of the following statements is / are correct ?
1. It is a surface-to-surface missile.
2. It is fuelled by liquid propellant only.
3. It can deliver one-tonne nuclear warheads about 7500 km away.
Select the correct answer using the code given below:
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
4569: There is a family of 6 persons A, B, C, D, E and F. There are two married couples in the family. The family members are lawyer, teacher, salesman, engineer, accountant and doctor. D, the salesman is married to the lady teacher. The doctor is married to the lawyer. F, the accountant is the son of B and brother of E, C, the lawyer is the daughter-in-law of A. E is the unmarried engineer. A is the grandmother of F. How is E related to F?
(A) Sister
(B) Brother
(C) Father
(D) cannot be determined
4570: Assertion (A):
At first the Turkish administration in India was essentially military.
Reason (R):
The country was parcelled out as Iqtas among leading military leaders.
(a) Both A and R are true, and R is the correct explanation of A
(b) Both A and R are true, but R is NOT a correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true