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UPSC Prelims 1996

147 questions, in the order they were asked.

Assertion (A): Transformer is useful for stepping up or stepping down voltages. Reason (R): Transformer is a device used in D.C. circuits. In the context of the above two statements, which one of the following is correct?

  1. (a)Both A and R are true and R is the correct explanation of A.
  2. (b)Both A and R are true but R is not a correct explanation of A.
  3. (c)A is true but R is false.
  4. (d)A is false but R is true.
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Official answer(c) A is true but R is false.

Consider the following statements: At the present level of technology available in India, solar energy can be conveniently used to I. Supply hot water to residential buildings. II. Supply water for minor irrigation projects. III. Provide street lighting. IV. Electrify a cluster of villages and small towns. Of these statements

  1. (a)I, II, III and IV are correct
  2. (b)I and IV are correct
  3. (c)I and III are correct
  4. (d)I, II and III are correct
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Official answer(d) I, II and III are correct

Consider the following statements: A person in a spaceship located half-way between the earth and the sun will notice that the I. Sky is jet black. II. Stars do not twinkle. III. Temperature outside the spaceship is much higher than that on the surface of the earth. Of these statements

  1. (a)Only III is correct
  2. (b)I and II are correct
  3. (c)I and III are correct
  4. (d)I, II and III are correct
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Official answer(b) I and II are correct