101: Which one of the following statements is correct?
(a) Liquid Sodium is employed as a coolant in nuclear reactors
(b) Calcium carbonate is an ingredient of toothpaste
(c) Bordeaux mixture consists of sodium sulphate and lime
(d) Zinc amalgams are used as a dental filling
102: Ice skating can be used to demonstrate that when ice is under pressure, its:
(a) Melting point is lowered
(b) Melting point is raised
(c) Melting point remains unchanged
(d) Coefficient of friction with metal is reduced
103: Consider the map given below :
The route indicated in the map was followed, during the course of his military expedition, by
(a) Chandragupta II
(b) Harshavradhana
(c) Rajendra Chola
(d) Malik Kafur
104: Match List I (Distinguished Person) with List II (Area of Work) and select the correct answer using the code given below the lists:
List I List II
(Distinguished Person) (Area of Work)
A. B. V. Rao 1. Automobiles Manufacture
B. C. K. Prahalad 2. Fisheries Economy
C. John Kurien 3. Information Technology and Software
D. Kiran Karnik 4. Poultry Farming
5. Management Science
(A) 2---------3---------1---------5
(B) 4---------3---------2---------5
(C) 4--------5---------2---------3
(D) 2---------5---------1---------3
105: Which are the materials generally employed as solder in soldering operation in elections.
(a) Iron and tin
(b) Lead and tin
(c) Aluminum and lead
(d) Aluminum and iron