936: Assertion (A)
In our houses, the current in AC electricity line changes direction 60 times per second.
Reason (R):
The frequency of alternating voltage supplied is 60 hertz.
(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
937: Who is Wole Soyinka ?
(A) A novel Prize winner for literature.
(B) A well-known economist
(C) A well-known industrialist owning steel plants in many parts of the world.
(D) A well-known football player
938: Consider the following:
1. Hotels and restaurants
2. Motor transport undertakings
3. Newspaper establishments
4. Private medical institutions
The employees of which of the above can have the 'Social Security' coverage under Employees' State Insurance Scheme?
(a) 1, 2 and 3 only
(b) 4 only
(c) 1, 3 and 4 only
(d) 1, 2, 3 and 4
939: Distribution of electric power from one place to another is done at high A.C. voltage because:
(a) Wastage of electricity is minimised
(b) Stealing of electric wires is prevented
(c) Electricity spreads in very short time
(d) It adds brightness
940: The record for the highest score in an innings in Test Cricket is now being held by Brian Lara. Immediately prior to him, the three record holders were:
(a) Don Bradman, Sunil Gavaskar and Colin Cowdrey
(b) Len Hutton, Peter May and Vivian Richards
(c) Hayden, Lara, Sobers
(d) Bob Cowper, Bill Lawry and Brian Lara