Quiz Questions - ITI Quiz - 06-Mar-2026 01:45 PM

Question 1 1 Marks

What is the minimum current rating of four diode bridge rectifier to supply load current of 1.8 Amp?

A

0.9 Amp

B

1.8 Amp

C

2.0 Amp

D

5.0 Amp

Question 2 1 Marks

What is the peak to peak voltage in a bridge rectifier circuit with load current of 10 mA, capacitance of 470 F and 50 Hz supply frequency?

A

0.213 v

B

1.525 v

C

2.134 v

D

3.567 v

Question 3 1 Marks

What is the effect on the output voltage in a bridge rectifier circuits, with one diode open?

A

Very low voltage

B

No output DC voltage

C

Full output rated voltage

D

Half of the rated output voltage

Question 4 1 Marks

What is the name of the process of converting AC into DC voltage?

A

Inverting

B

Rectifying

C

Amplifying

D

Demodulating

Question 5 1 Marks

What is the output frequency of the pulsating DC in a two diode fullwave rectifier?

A

Half of the input A/C frequency

B

Double the input A/C frequency

C

Same frequency of the A/C input

D

Three times the input A/C frequency

Question 6 1 Marks

Which impurity is added to pure semiconductor to form N-type material?

A

Boron

B

Indium

C

Arsenic

D

Gallium

Question 7 1 Marks

Which impurity is added to form P - type semiconductor material?

A

Arsenic

B

Gallium

C

Antimony

D

Phosphorus

Question 8 1 Marks

What is the process of adding impurities to a pure semi conductor material?

A

Doping

B

Etching

C

Forming

D

Diffusion

Question 9 1 Marks

What is the disadvantage of the two diode full wave rectifier compared with a bridge rectifier?

A

DC output level is higher

B

The ripple frequency is higher

C

The need of bulky transformer

D

Each diode carries half the load current

Question 10 1 Marks

Which diode is used in low power communication circuits?

A

Signal diodes

B

Rectifier diodes

C

Switching diodes

D

High power diodes

Question 11 1 Marks

Which is the first step followed in troubleshooting of electronic circuit?

A

Thermal test

B

Chemical test

C

Mechanical test

D

Physical and sensory test

Question 12 1 Marks

What is the maximum safe reverse voltage rating of a diode?

A

PIV voltage

B

Knee voltage

C

Break down voltage

D

Forward break down voltage

Question 13 1 Marks

What is the output pulse frequency of the full wave rectifier with input frequency of 50 Hz?

A

40 Hz

B

60 Hz

C

100 Hz

D

200 Hz

Question 14 1 Marks

When does the zener diode begins to conduct in the reverse biased condition?

A

When bias voltage reached 0.7V

B

After the barrier voltage cancelled

C

Voltage across zener reached 0.3V

D

Voltage across it reached the zener voltage

Question 15 1 Marks

What is the meaning of maximum safe reverse voltage across a diode?

A

PIV voltage

B

Knee voltage

C

Break down voltage

D

Reverse break down voltage

Question 16 1 Marks

Which parameter is maintained constant in zener diode?

A

Power

B

Current

C

Voltage

D

Resistance

Question 17 1 Marks

Which component filter the ripples in the rectifier circuit?

A

DIAC

B

Diode

C

TRIAC

D

Capacitor

Question 18 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 19 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 20 1 Marks

Which is the 3 terminal, negative voltage regulator IC?

A

LM 320

B

LM 340

C

IC 7905

D

IC 7812

Question 21 1 Marks

Which three terminal voltage regulator IC has adjustable output?

A

LM 100

B

LM 105

C

LM 305

D

LM 317

Question 22 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 23 1 Marks

What is the current rating of voltage regulator IC LM338K?

A

2A

B

3A

C

4A

D

5A

Question 24 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 25 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