Electrical Engg (EEE) - MCQ Practice Questions

Which Boolean theorem states that A + 0 = A and A · 1 = A?

In a ripple counter with 4 flip-flops, what is the maximum count?

What is the primary advantage of CMOS logic over TTL logic in modern designs?

In a D flip-flop, the output Q follows the input D on the occurrence of which signal?

Which type of ADC provides the fastest conversion?

What is the output frequency of a decade counter (MOD-10 counter) when input frequency is 1 MHz?

In a multiplexer with 8 input lines, how many output lines are present?

The setup time of a flip-flop is defined as the minimum time during which the input must be stable:

Which of the following logic families has the highest power dissipation?

De Morgan's theorem states that (A·B)' equals:

A 16:1 multiplexer requires how many select lines to uniquely identify each input?

In asynchronous (ripple) counters, the propagation delay issue leads to:

Which digital circuit is used to convert parallel data into serial form?

The Boolean expression A·B + A·B' can be simplified to:

In a synchronous counter design, all flip-flops receive the clock signal simultaneously. This arrangement primarily eliminates:

A Schmitt trigger input is used in digital circuits primarily to:

When implementing a 3-variable Boolean function using a 2-to-1 multiplexer instead of a 8-to-1, one variable must be:

A 4-bit binary counter requires how many flip-flops to count from 0 to 15?

Which logic gate produces a HIGH output only when all inputs are HIGH?

What is the minimum number of NAND gates required to implement a NOT gate?