1371: The Function of heavy water in a nuclear reactor is to
(a) Stop the nuclear reaction
(b) Slow down the speed of neutrons
(c) Cool down the reactor
(d) Increase the speed of neutrons
1372: For which sport is the Val Barker Cup awarded in the Olympic Games?
(a) Boxing
(b) Swimming
(c) Long Jump
(d) High Jump
1373: Which of the following fish are bred exclusively in the cold regions of India ?
I. Catla.
II. Tinca.
III. Bhekti.
IV. Trout.
Choose the correct answer from the codes given below.
Codes:
(a) I and lV
(b) I and IV
(c) II and IV
(d) III and IV
1374: Shifting cultivators normally grow:
(a) A single crop which is mainly consumed
(b) The major crop along with cereals
(c) Cash crops along with fodder
(d) Grains, vegetables and tubers in rotation
1375: If a potato is placed on a pure paper plate which is white and unprinted and put in a microwave oven, the potato heats up but the paper plate does not. This is because:
(a) Potato contains water whereas paper does not contain water
(b) Potato transmits microwaves whereas paper reflects microwaves
(c) Potato is mainly made up of starch whereas paper is mainly made up of cellulose
(d) Potato is a fresh organic material whereas' paper is a dead organic material