4226: Which of the following statements is/are correct?

1. Viruses lack enzymes necessary for the generation of energy.

2. Viruses can be cultured in any synthetic medium.

3. Viruses are transmitted from one organism to another by biological vectors only.

Select the correct answer using the codes given below.

(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
4227: Consider the following items imported by India:

1. Capital goods

2. Petroleum

3. Pearls and precious stones

4. Chemical

5. Iron and steel

The correct sequence of the decreasing order of these items (as per 94-95 figures), in terms of value is

(a) 1, 2, 3, 4, 5
(b) 1, 2, 4, 3, 5
(c) 2, 1, 3, 4, 5
(d) 2, 1, 4, 5, 3
4228: The blood pressure values of four persons are given below :

1. Mrs. X : 90/60

2. Mr. X : 160/120

3. Mr. Y : 120/80

4. Mrs. Y : 140/100

Who among the following has normal blood pressure?

(a) Mrs. X

(b) Mr. X

(c) Mrs. Y

(d) Mr. Y
4229: The given map shows four towns of Central Asian region marked as 1, 2, 3, and 4. Identify these from the following list and select the correct answer using the codes given below :

Towns:
A. Bishkek
B. Ashkhabad
C. Tashkent
D. Dushanbe

Codes :

(a) A-3, B-1, C-3, D-4
(b) A-3, B-1, C-4, D-2
(c) A-1, B-3, C-2, D-4
(d) A-1, B-3, C-4, D-2
4230: Mica is abundantly used in which of the following industries?

(a) Cement

(b) Electrical

(c) Plastic

(d) Fire resistance bricks