3426: The official associated with land revenue collection in the Maratha administration in medieval India was
(a) Patel
(b) Kulkarni
(c) Mirasdar
(d) Silhadar
3427: As per the 1991 Census, which one of the following states has a lower population density than the other three ?
(a) Sikkim
(b) Nagaland
(c) Meghalaya
(d) Manipur
3428: With reference to 'fuel cells' in which hydrogen-rich fuel and oxygen are used to generate electricity. Consider the following statements :
1. If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by-products.
2. Fuel cells can be used for powering buildings and not for small devices like laptop computers.
3. Fuel cells produce electricity in the form of Alternating Current (AC).
Which of the statements given above is / are correct?
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
3429: The continental shelf surrounding the Indian Coast is widest off the
(a) Hooghly Coast
(b) Coromandel Coast
(c) Konkan Coast
(d) South Gujarat Coast
3430: Consider the following factors:
1. Rotation of the Earth
2. Air pressure and wind
3. Density of ocean water
4. Revolution of the Earth
Which of the above factors influence the ocean currents?
(a) 1 and 2 only
(b) 1, 2 and 3
(c) 1 and 4
(d) 2, 3 and 4