Quiz Questions - ITI Quiz - 30-May-2026 02:28 PM

Question 1 1 Marks

How many inputs are available in the 7447 BCD-to-seven segment decoder used to drive the LED display?

A

One

B

Four

C

Seven

D

Eight

Question 2 1 Marks

What is the propagation delay of the standard TTL chip?

A

5 ns

B

8 ns

C

10 ns

D

12 ns

Question 3 1 Marks

What is the decimal conversion number for the octal number (2374)8?

A

(1266)10

B

(1276)10

C

(1286)10

D

(1296)10

Question 4 1 Marks

What is the power dissipation of the standard TTL chip?

A

5 mW/gate

B

10 mW/gate

C

15 mW/gate

D

20 mW/gate

Question 5 1 Marks

What is the power supply required to operate the most standard TTL ICs properly?

A

+ 1.5v to +2.5V

B

- 1.5v to - 2.5V

C

+ 4.75v to + 5.25V

D

+ 7.5v to + 12V

Question 6 1 Marks

What is the digital signal value for the analog signal value 6V?

A

100

B

101

C

110

D

111

Question 7 1 Marks

What is the decimal number for the binary number 0101?

A

4

B

5

C

6

D

7

Question 8 1 Marks

Which IC is used for (DEMUX) function in data transmission?

A

IC 7483

B

IC 7486

C

74 LS 138

D

74 LS 151

Question 9 1 Marks

Which circuits requires the flip - flops for their operation?

A

Amplifier circuits

B

Oscillator circuits

C

Modulator circuits

D

Memory circuits

Question 10 1 Marks

What is the use of flip - flop?

A

It stores energy

B

It stores voltage

C

It stores current

D

It stores binary information

Question 11 1 Marks

What is the maximum possible number of flip-flops in a decade counter?

A

1n

B

2n

C

2n+1

D

3n

Question 12 1 Marks

What is the purpose of using IC74LS190?

A

Attemnator

B

Comparator

C

Up/down counter

D

Modulator

Question 13 1 Marks

Which IC is used for the function of 4 bit shift register?

A

IC 7404

B

IC 7447

C

IC 7493

D

IC 7495

Question 14 1 Marks

What is the information stored in digital registers?

A

Analog values

B

Binary values

C

Decimal values

D

Alphanumeric values

Question 15 1 Marks

How many transistors are built inside the Very Large Scale Integration (VLSI) IC package?

A

1000 and above

B

1 to 10 transistors

C

10 to 100 transistors

D

100 to 1000 transistors

Question 16 1 Marks

Which IC package consist of 100 to 1000 transistors?

A

Large scale integration (LSI)

B

Small scale integration (SSI)

C

Medium scale integration (MSI)

D

Very large scale integration (VLSI)

Question 17 1 Marks

Which is the 3 terminal, negative voltage regulator IC?

A

LM 320

B

LM 340

C

IC 7905

D

IC 7812

Question 18 1 Marks

Which three terminal voltage regulator IC has adjustable output?

A

LM 100

B

LM 105

C

LM 305

D

LM 317

Question 19 1 Marks

How much is the maximum load current of the negative voltage regulator IC 7912?

A

1.0 A

B

1.5 A

C

2.0 A

D

0.55 A

Question 20 1 Marks

What is the current rating of voltage regulator IC LM338K?

A

2A

B

3A

C

4A

D

5A

Question 21 1 Marks

Which method is followed to troubleshoot the problem causing section by the symptom?

A

Step by step method

B

Sensory test method

C

Trial and error method

D

Logical approach method

Question 22 1 Marks

What is the current rating of voltage regulator IC LM317L?

A

0.1 A

B

0.2 A

C

0.3 A

D

0.4 A

Question 23 1 Marks

What is the range of output voltage of regulator IC LM 317?

A

0 to 25 V

B

0 to 30 V

C

0 to 32 V

D

1.2 V to 32 V

Question 24 1 Marks

Which type of voltage regulator is IC 723?

A

Multipin variable voltage regulator

B

Three pin positive voltage regulator

C

Three pin negative voltage regulator

D

Three pin adjustable voltage regulator

Question 25 1 Marks

What is the common and popular application of U.J.T?

A

Multivibrator

B

Voltage regulator

C

Relaxation oscillator

D

Motor speed controller

Question 26 1 Marks

What is the maximum forward gate current (Ig) for BFW10 JFET?

A

5 mA

B

8 mA

C

10 mA

D

20 mA

Question 27 1 Marks

What is the package type for BF 245B?

A

TO-72

B

TO-92

C

TO-82

D

TO-102

Question 28 1 Marks

How gate is biased in JFET?

A

AC supply function

B

Forward biased

C

Reverse biased

D

Dual supply function

Question 29 1 Marks

What is the gate current (Ig) of the JFET, when reverse biased?

A

Practically very low

B

Practically zero

C

Practically unity

D

Practically infinity

Question 30 1 Marks

Which is the N - channel FET?

A

AC supply connected to drain termin

B

Main current flows through N-doped material

C

Main current flows through P-doped material

D

S-terminal connected to positive

Question 31 1 Marks

Which is the package type for the JFET BFW10?

A

TO-62

B

TO-72

C

TO-82

D

TO-92

Question 32 1 Marks

What is the maximum drain- source voltage, VDS for the JFET BF 245B?

A

10 V

B

20 V

C

30 V

D

40 V

Question 33 1 Marks

What is the term stands for TRIAC?

A

Triode Alternate control

B

Triode DC semiconductor

C

Triode AC semiconductor

D

Triode Access console

Question 34 1 Marks

What is the maximum specified voltage for the TRIAC TIC 201D?

A

1.5 V

B

1.7 V

C

2.1 V

D

2.5 V

Question 35 1 Marks

What is the code number of TRIAC?

A

2N2646

B

BFW10

C

BT136

D

2N1597

Question 36 1 Marks

Which current flows in TRIAC between MT1 and MT2?

A

Conventional current

B

Principal current

C

Reverse current

D

Leakage current

Question 37 1 Marks

What is the switching speed of solid state relays?

A

1 to 25 nano seconds

B

10 to 60 nano seconds

C

1 to 100 nano seconds

D

1 to 100 milli seconds

Question 38 1 Marks

What is the minimum current ratings of solid state relays available in low power packages?

A

Few micro Amperes

B

10 milli Ampere

C

50 milli Ampere

D

100 milli Ampere

Question 39 1 Marks

What is the full form of the abbreviation MOSFET?

A

Minimum output signal FET

B

Medium oscillator signal FET

C

Metal oxide semiconductor FET

D

Metal orgamic serial FET

Question 40 1 Marks

What is the maximum blocking voltage of very high current handling IGBT modules?

A

440 V

B

1000 V

C

5000 V

D

6000 V

Question 41 1 Marks

What is the input impedance of IGBT?

A

Low input impedance

B

High input impedance

C

Medium input impedance

D

Infinity input impedence

Question 42 1 Marks

What is the advantage of MOSFET?

A

Fast switching speed

B

Slow switching speed

C

Higher power gate signal

D

Low thermal ionisation of electron-holes

Question 43 1 Marks

What is the advantage of MOSFET?

A

Superior current conduction capability

B

Low gate signal power requirements

C

Very low on-state voltage

D

Low driving power

Question 44 1 Marks

What is the advantage of IGBT?

A

It has low input impedance

B

Low efficiency and slow switching

C

High efficiency and fast switching

D

IGBT is a gate current driven device

Question 45 1 Marks

What is the advantage of IGBT?

A

Low driving power

B

Low gate signal power

C

Fast switching speed

D

Used to isolate logic circuits

Question 46 1 Marks

6 What is the input impedance of IGBT?

A

Low

B

High

C

Unity

D

Infinity

Question 47 1 Marks

Which is the property of IGBT?

A

Low input impedance

B

High efficiency and fast switching

C

Low gate signal

D

Significant power consumption

Question 48 1 Marks

What is the main advantages of IGBT over BJT?

A

Fast switching speed

B

Superior current conduction capability

C

Reverse bias secondary break downs

D

Thermal limits are pushed to the edge

Question 49 1 Marks

How many alternating layers are there in IGBT?

A

2 layers

B

3 layers

C

4 layers

D

Single layer

Question 50 1 Marks

Which insulation layer is used in MOSFET?

A

Silicon-di-oxide

B

Arsenic material

C

Antimony material

D

Germanium material