686: The Reserve Bank of India (RBI) acts as a bankers' bank. This would imply which of the following?

1. Other banks retain their deposits with the RBI.

2. The RBI lends funds to the commercial banks in times of need.

3. The RBI advises the commercial banks on monetary matters.

Select the correct answer using the codes given below :

(a) 2 and 3 only
(b) 1 and 2 only
(c) 1 and 3 only
(d) 1, 2 and 3
687: Consider the following statements:

1. Liquefied Natural Gas (LNG) is liquefied under extremely cold temperatures and high pressure to facilitate storage or transportation in specially designed vessels.

2. First LNG terminal in India was built in Hassan.

3. Natural Gas Liquids (NGL) are separated from LPG and these include ethane, propane, butane and natural gasoline.

Which of the statements given above is/are correct?

(a) 1 only
(b) 2 and 3
(c) 1 and 3
(d) 1, 2 and 3
688: In the balanced dietaries for a day of an adult working man, weights of carbohydrate food and total protein food (both superior and inferior) should be in order of

(a) 600 gm and 420 gm respectively

(b) 600 gm and 600 gm respectively

(c) 420 gm and 600 gm respectively

(d) 420 gm and 420 gm respectively
689: There are more anti-bacterial drugs than anti-viral drugs because

(a) Bacterial diseases are intra-cellular.

(b) Viral diseases are intra-cellular.

(c) Virus are smaller than bacteria.

(d) Drugs can penetrate bacteria more effectively
690: Which bacterial strain, developed from natural isolates by genetic manipulations, can be used for treating oil spills ?

(a) Agrobacterium
(b) Pseudomonas
(c) Nitrosomonas
(d) Clostridium