4396: Which of the following was the main feature of the policy of Dual Government of British rulers in India?
(a) The English collected the revenues with the help of Indian Officials and they became virtually the head of the civil and military administration
(b) The general administrative body consisted of two categories of rulers
(c) Main items of administration were in the hands of local kings and rest were in the hands of British rulers
(d) Some portions of land were ruled by the local kings and rest by the British rulers
4397: Assertion (A) : A jet aircraft moving at Mach Number equal to 1 travels faster at an altitude of 15 km than while moving at mach number equal to 1 near the sea level.
Reason (R) : the velocity of sound depends on the temperature of the surrounding medium.
(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
4398: Consider the following statements :
Ahadis were those troopers who
I. offered their services singly.
II. did not attach themselves to any chief.
III. had the emperor as their immediate colonel.
IV. attached themselves to Mirzas.
Of these statements :
(a) I, III and IV are correct
(b) I, II and III are correct
(c) II and III are correct
(d) I and IV are correct
4399: Important oilfields of the Brahmaputra Valley include
(a) Digboi and Kilboi
(b) Lunej and Ankhleshwar
(c) Badarpur and Masimpur
(d) Naharkatia and Moran
4400: Where is Bundala Bioshpere Reserve which has been recently added to the UNESCO's Man and Biosphere (MAB) network, located?
(a) Russia
(b) Bangladesh
(c) India
(d) Sri Lanka