226: Two trains, each being 120 metres long, are running on parallel tracks in opposite directions at 40 metres/minute and 20 metres/minute respectively. How much time will they take to cross each other?
(a) 1 minute
(b) 2 minutes
(c) 3 minutes
(d) 4 minutes
227: Consider the following statements about acetylene :
I. It is used in welding industry.
II. It is raw material for preparing plastics.
III. It is easily obtained by mixing silicon carbide and water.
Of these statements :
(a) I and II are correct
(b) I and III are correct
(c) II and III are correct
(d) I, II and III are correct
228: When a number is divided by 13, the remainder is 6. When the same number is divided by 7, then remainder is 1. What is the number ?
229: With reference to colonial rule in India, what was sought by the Ilbert Bill in 1883?
(a) To bring Indians and Europeans on par as far as the criminal jurisdiction of courts was concerned
(b) To impose severe restrictions on the freedom of the native press as it was perceived to be hostile to colonial rulers
(c) To encourage the native Indians to appear for civil service examinations by conduction them in India
(d) To allow native Indians to possess arms by amending the Arms Act
230: Assertion (A):
India does not export natural rubber.
Reason (R) :
About 97% of India's demand for natural rubber is met from domestic production.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true