Page 1151 - Basic Electrical Engineering

a. 2 comparators, 1 RS flip-flop, 1 discharge transistor
b. 2 comparators, 2 RS flip-flop, 1 discharge transistor
c. 1 comparator, 2 RS flip-flop, 1 discharge transistor
d. 1 comparator, 1 RS flip-flop, 1 discharge transistor.

8. Which of the following is not a voltage regulator IC?

a. IC 7805
b. IC 7808
c. IC 7812
d. IC 741.

9. An operational amplifier (op-amp) is basically

a. a negative feedback amplifier
b. positive feedback amplifier
c. ow-gain amplifier
d. none of these.

10. Which of the following statements is not true?

a. Logic gates, flip-flops, counters, shift registers, etc. form a digital integrated circuit
b. The NAND or NOR gates are the universal building block of digital systems
c. TTL stands for transistor–transistor logic
d. In an integrated circuit only active components incorporated in a single chip.

Answers to Multiple Choice Questions

1. (d) 2. (a) 3. (b) 4. (d)

5. (a) 6. (a) 7. (a) 8. (d)
9.(a) 10. (d)