List of top Instrumentation Engineering Questions on Digital Electronics and Logic Gates asked in TS PGECET

A 4-bit synchronous counter with series carry uses flip-flops and two AND gates with propagation delays of 30 ns and 10 ns respectively. The max time between successive clock pulses is:

Which of the following has the refreshing circuitry?

Which of the following logic families has the highest fan-out?

The result of \( 45_{10} - 45_{16} \), expressed in 6-bit 2's complement, is:

The binary representation of the decimal number 1.375 is:

The minimum number of flip-flops required to design a mod-10 counter is:

The output \( Q_{n+1} \) of a JK flip-flop for the input \( J = 1, K = 1 \) is:

The combinational circuit shown uses a 4x1 multiplexer. The output \( Q \) of the circuit is:

The expression \( a = \overline{AB} \) is equal to:

The minimal sum of products form of \( f = \overline{A}BCD + \overline{A}BCD + BCD + \overline{A}BC \) is:

A computer has a memory space of \( 2^{16} \) and word length of 24 bits. Each memory chip has 10 address lines and 8 data lines. Number of chips required is:

The Boolean expression \( \overline{A + B + \overline{C}} \) is equal to: