E7A01

What is a bistable circuit?

1. A flip-flop

E7A02

How many output level changes are obtained for every two trigger pulses applied to the input of a "T" flip-flop circuit?

1. Two

E7A03

Which of the following can divide the frequency of pulse train by 2?

1. A flip-flop

E7A04

How many flip-flops are required to divide a signal frequency by 4?

1. 2

E7A05

Which of the following is a circuit that continuously alternates between two unstable states without an external clock?

1. Astable Multivibrator

E7A06

What is a characteristic of a monostable multivibrator?

1. It switches momentarily to the opposite binary state and then returns, after a set time, to its original state

E7A07

What logical operation does an AND gate perform?

1. It produces a logic "1" at its output only if all inputs are logic "1"

E7A08

What logical operation does a NAND gate perform?

1. It produces a logic "0" at its output only when all inputs are logic "1"

E7A09

What logical operation does an OR gate perform?

1. It produces a logic "1" at its output if any or all inputs are logic "1"

E7A10

What logical operation does a NOR gate perform?

1. It produces a logic "0" at its output if any or all inputs are logic "1"

E7A11

What is a truth table?

1. A list of inputs and corresponding outputs for a digital device

E7A12

What is the name for logic which represents a logic "1" as a high voltage?

1. Positive Logic

E7A13

What is the name for logic which represents a logic "0" as a high voltage?

1. Negative logic

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