4501: Urea is prepared by the chemical reaction of:
(a) Ammonia and Carbon dioxide
(b) Ammonium sulphate and calcium chloride
(c) Acetamide and ethyl alcohol
(d) Chlorine and water
4502: Consider the following statements:
A 4-wheel vehicle moving a sharp circular path at high speed will
1. Overturn about its outer wheels
2. Overturn about its inner wheels
3. Skid outwards
4. Skid inwards
Which of these statements are correct?
(a) 1 and 3
(b) 2 and 4
(c) 2 and 3
(d) 1 and 4
4503: Widespread resistance of malarial parasite to drugs like chloroquine has prompted attempts to develop a malarial vaccine to combat malaria. Why is it difficult to develop an effective malaria vaccine ?
(a) Malaria is caused by several species of Plasmodium
(b) Man does not develop, immunity to malaria during natural infection
(c) Vaccines can be developed only against bacteria
(d) Man is only an intermediate host and not the definitive host
4504: According to the Constitution of India, it is the duty of the President of India to cause to be laid before the Parliament which of the following?
1. The Recommendations of the Union Finance Commission
2. The Report of the Public Accounts Committee
3. The Report of the Comptroller and Auditor General
4. The Report of the National Commission for Scheduled Castes
Select the correct answer using the codes given below :
(a) 1 only
(b) 2 and 4 only
(c) 1, 3 and 4 only
(d) 1, 2, 3 and 4
4505: Match List-I (Persons) with List-II (Positions) and select the correct answer using the codes given below the Lists:
List-I List-II
(Persons) (Positions)
(A) B.P. Mishra 1. Executive Director, IMF
(B) Suresh Kalamadi 2. Chairman, Steel Authority of India Ltd.
(C) PrafulPatel 3. President, Indian Olympic Association
(D) V. S. Jain 4. Vice-President, South Asian Region, World Bank
Codes:
A B C D
(a) 4 2 1 3
(b) 1 3 4 2
(c) 4 3 1 2
(d) 1 2 4 3