Which of the following gives the correct number of multiplexers required to build a 32 x 1 multiplexer ?

• A .Two 16 x 1 mux

• B .Three 8 x 1 mux

• C .Two 8 x 1 mux

• D .Three 16 x 1 mux

If two inputs are active on a priority encoder, which will be coded on the output ?

• A .Neither of the inputs

• B .The lower value

• C .The higher value

• D .Both of the inputs

This circuit is a _________ oscillator ?

• A .Phase - Shift

• B .Wien Bridge

• C .Colpitts

• D .Hartley

Maximum Power transfer theorem is______

• A .V_th/4R_th

• B .V_th²/4R_th

• C .V_th²/R_th

• D .V_th²/2R_th

What will be the output from a D flip – flop if the clock is low and D = 0?

• A .0

• B .1

• C .No change

• D .Toggle between 0 and 1

Which of the following devices is used for modulation & demodulation

• A .Multiplexer

• B .Serial Port

• C .Modem

• D .Gateway

Calculate the minimum sampling rate to avoid aliasing when a continuous-time signal is given by x(t) = 5 cos 400𝝅t

• A .100 Hz

• B .250 Hz

• C .400 Hz

• D .20 Hz

What is the Norton's equivalent of a circuit ?

• A) A constant current source with resistance in parallel.

• B) A constant voltage source with conductance in parallel.

• C) A constant current source with conductance in parallel.

• D) A constant voltage source with resistance in parallel.

Which of the following is NOT a characteristic of an ideal operational amplifier?

• A .Finite open loop gain

• B .Infinite bandwidth

• C .Infinite input impedance

• D .Zero output impedance

Match the following

• 1. 1. (A) - (I), (B) - (II), (C) - (III), (D) - (IV)

• 2 . (A) - (I), (B) - (III), (C) - (II), (D) - (IV)

• 3. (A) - (I), (B) - (II), (C) - (IV), (D) - (III)

• 4. (A) - (III), (B) - (IV), (C) - (I), (D) - (II)