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WorksheetsQuizotronics Quiz
Total questions: 20
Worksheet time: 15mins
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 .Vth/4Rth
B .Vth2/4Rth
C .Vth2/Rth
D .Vth2/2Rth
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. (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)
The circuits shown in fig. works as which gate ?
A .Nand gate
B .Or gate
C .And gate
D .Nor gate
A special case of non-inverting amplifier in which all of the output voltage is fed back to the inverting input of the op-amp is called :
A .Differentiator
B .Integrator
C .Logarithmic amplifier
D .Voltage follower
The Arduino uses what to assign analog values?
A .Sine waves
B .PWM
C .Square waves
D .Both B and C
What is the change in voltage across the resistor when the load line is shifted from RI to R2 ?
A .0 V
B .9.25 V
C .10 V
D .9 V
Ge and Si diodes start conducting at 0.3 V and 0.7 V respectively. In the following figure if Ge diode connection are reversed, the value of Vo changes by :
(assume that the Ge diode has large breakdown voltage)
A .0.6 V
B .0.8 V
C .0.4 V
D .0.2 V
The critical frequency of a filter is defined as the point at which the response drops ______ from the pass band.
A) -20dB
B) -3db
C) -6dB
D) -40dB
What cannot be measured using a CRO device ?
A .Voltage Ripple
B .Resistance
C .Current
D .Voltage
Which one of the following represents an analog circuit diagram for OR gate?
A) 1
B) 2
C) 3
D) 4
How many inputs are required for a 1-of-10 BCD decoder ?
A) 10
B) 8
C) 4
D) 2
The number of valence electrons of P and Si are ___________ respectively.
A) 3 and 4
B) 5 and 4
C) 4 and 4
D) 4 and 5
