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Technical Quiz Competation

Total questions: 50

Worksheet time: 50mins

Name
Class
Date
1.

Choose the Passive Component.

a)

Transistor

b)

Resistor

c)

Diode

d)

Integrated circuit (IC)

2.

Zener diode is used for?

a)

Filter circuit

b)

Rectifier circuit

c)

Regulator circuit

d)

Impedance circuit

3.

Which one is not related to the transistor term?

a)

NPN

b)

PNP

c)

GDS

d)

CBE

4.

By connecting the Resistors in ————- Form we can Increase the value of resistance.

a)

Series

b)

Antiparallel

c)

connecting to Ground

d)

Parallel

5.

When two batteries (1.5V) connected in series, What we will get?

a)

0.5V

b)

2.5V

c)

0V

d)

3V

6.

The voltage out of an ideal voltage source is

a)

Zero

b)

Constant

c)

Load resistance dependent

d)

Internal resistance dependent

7.

The path between two points along which an electrical current can be carried is called

a)

A network

b)

A relay

c)

A circuit

d)

A loop

8.

In a constant voltage DC circuit, when the resistance increases, the current will

a)

Decrease

b)

Stop

c)

Increase

d)

Remains constant

9.

The number of holes in an intrinsic semiconductor is

a)

Equal to number of free electrons

b)

Greater than number of free electrons

c)

Less than number of free electrons

d)

None of the above

10.

The output voltage signal of a bridge rectifier is

a)

Half-wave

b)

Full-wave

c)

Bridge-rectified signal

d)

Sine wave

11.

If the Zener Diode is connected in wrong polarity, the voltage across the load is

a)

0.7 V

b)

10 V

c)

14 V

d)

18 V

12.

The Base – Collector Diode (Base Collector Junction) is usually

a)

Reverse Biased

b)

Forward Biased

c)

Breakdown Region

d)

No Conduction

13.

If base current is 100µA and current gain is 100, then collector current is

a)

1A

b)

10A

c)

10mA

d)

1mA

14.

The output impedance of Common Emitter Configuration is

a)

Low

b)

Very Low

c)

High

d)

Zero

15.

In the boolean algebra, a variable has ________ different state(s)/value(s).

a)

1

b)

3

c)

4

d)

2

16.

The boolean algebra is mostly based on

a)

De Morgans Theorem

b)

Boolean Theorem

c)

De Morphons Theorem

d)

Standards Theorem

17.

Stack is also known as

a)

LILO Memory

b)

LIFO Memory

c)

FIFO Memory

d)

Flash Memory

18.

Which number system has a base of 16

a)

Hexadecimal

b)

Decimal

c)

Octal

d)

None

19.

If a Hexadecimal number needs to convert to binary. For each hexadecimal digit, there will be how many bits

a)

2

b)

1

c)

8

d)

4

20.

Boolean algebra is also known as

a)

Transistor algebra

b)

Counting algebra

c)

Switching algebra

d)

gate algebra

21.

Which logic family provide minimum power dissipation

a)

TTL

b)

JFET

c)

CMOS

d)

ECL

22.

A Nibble is equal to ________ bit(s)

a)

1

b)

4

c)

2

d)

8

23.

Queue is also known as

a)

FIFO Memory

b)

LILO Memory

c)

LIFO Memory

d)

Flash Memory

24.

Which of the following memories uses one transistor and one capacitor as basic memory unit

a)

SRAM

b)

DRAM

c)

SRAM and DRAM

d)

None

25.

How many bits are required to store one BCD digit ?

a)

4

b)

1

c)

2

d)

3

26.

In an open loop control system

a)

Output is independent of control input

b)

Output is dependent on control input

c)

Only system parameters have effect on the control output

d)

None of the above

27.

Zero initial condition for a system means

a)

input reference signal is zero

b)

zero stored energy

c)

no initial movement of moving parts

d)

system is at rest and no energy is stored in any of its components

28.

Transfer function of a system is used to calculate which of the following?

a)

The order of the system

b)

The time constant

c)

The output for any given input

d)

The steady state gain

29.

Which notation represents the feedback path in closed loop system representation?

a)

b(t)

b)

c(t)

c)

e(t)

d)

r(t)

30.

The output is said to be zero state response because ______conditions are made equal to zero.

a)

Initial

b)

Final

c)

Steady state

d)

Impulse response

31.

If a pole is located at s = -5 in left-hand plane (LHP), how will it be represented in Laplace domain?

a)

1/ s + 5

b)

1/ s – 5

c)

s/ s + 5

d)

s/ s – 5

32.

Root locus specifies the movement of closed loop poles especially when the gain of system ________

a)

Remains constant

b)

Exhibit variations

c)

Gives zero feedback

d)

Gives infinite poles

33.

If a linear system is subjected to an input r(t) = Asin(ωt), what output will be generated?

a)

c(t) = B tan (ωt + Φ)

b)

c(t) = B sin (ωt + Φ)

c)

c(t) = B cos (ωt + Φ)

d)

c(t) = B cot (ωt + Φ)

34.

Which unit is adopted for magnitude measurement in Bode plots?

a)

Degree

b)

Decimal

c)

Decibel

d)

Deviation

35.

In time domain system, which response has its existence even after an extinction of transient response?

a)

Step response

b)

Impulse response

c)

Steady state response

d)

All of the above

36.

Square law modulators

a)

Have non linear current-voltage characteristics

b)

Are used for Amplitude Modulation

c)

Are used for frequency modulation

d)

Both a and b are correct

37.

Vestigial side band signals are detected by

a)

Filters

b)

Synchronous detection

c)

Balanced modulator

38.

The standard value for Intermediate frequency (IF) in AM receivers is

a)

455 KHz

b)

580 KHz

c)

50 MHz

39.

Function of frequency mixer in super heterodyne receiver is

a)

Amplification

b)

Filtering

c)

Multiplication of incoming signal and the locally generated carrier

40.

The costas receiver is used for

a)

FM signal

b)

DSB-SC signal

c)

PCM signal

d)

DM signal

41.

Parity check bit coding is used for

a)

Error correction

b)

Error detection

c)

Error correction and detection

d)

None of the above

42.

The prefix code is also known as

a)

Instantaneous code

b)

Block code

c)

Convolutional code

d)

Parity bit

43.

For M equally likely messages, the average amount of information H is

a)

H = log10M

b)

H = log2M

c)

H = log10M2

d)

H = 2log10M

44.

Which is the correct condition of symmetry observed in z-parameters?

a)

z11 = z22

b)

z11 = z12

c)

z12 = z22

d)

z12 = z21

45.

Which operation is likely to get executed or performed by Millman's theorem in terms of converting the voltage or current sources into a single equivalent voltage or current source?

a)

Subtraction

b)

Combination

c)

Differentiation

d)

Integration

46.

In CMOS circuits, which type of power dissipation occurs due to switching of transient current and charging & discharging of load capacitance?

a)

Static dissipation

b)

Dynamic dissipation

c)

Both a and b

d)

None of the above

47.

The port address in TCP/IP architecture basically involves ______

a)

Label assigning to a process

b)

Changing of physical address from hop to hop

c)

Encapsulation of data in a frame

d)

All of the above

48.

What would be the joint probability of statistically independent events that occur simultaneously?

a)

Zero

b)

Not equal to zero

c)

Infinite

d)

None of the above

49.

DFT is applied to

a)

Infinite sequences

b)

Finite discrete sequences

c)

Continuous infinite signals

d)

Continuous finite sequences

50.

A system is said to be marginally unstable if

a)

None of its zeros of its transfer function lies on the jω axis of s-plane

b)

At least one zero of its transfer function lies on the jω axis of s-plane

c)

None of its poles of its transfer function lies on the jω axis of s-plane

d)

At least one pole of its transfer function lies on the jω axis of s-plane

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