Quiz Questions - ITI Quiz - 30-APR-2026 02:13 P

Question 1 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 2 1 Marks

How gate is biased in JFET?

A

AC supply function

B

Forward biased

C

Reverse biased

D

Dual supply function

Question 3 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 4 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 5 1 Marks

Which device is a unipolar transistor?

A

UJT

B

FET

C

BJT

D

IGBT

Question 6 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 7 1 Marks

What is the code number of TRIAC?

A

2N2646

B

BFW10

C

BT136

D

2N1597

Question 8 1 Marks

Which current flows in TRIAC between MT1 and MT2?

A

Conventional current

B

Principal current

C

Reverse current

D

Leakage current

Question 9 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 10 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 11 1 Marks

What is the maximum current ratings of solid state relays available in high power packages?

A

1 Amp

B

10 Amp

C

40 Amp

D

100 Amp

Question 12 1 Marks

Which is the drain current (Id) in JFET?

A

Electron from drain to gate

B

Electron from source to drain

C

Electron from drain to source

D

Electron from gate to source

Question 13 1 Marks

Which is the device made and interconnected by two transistors?

A

UJT

B

SCR

C

FET

D

LED

Question 14 1 Marks

How many layers of PN - junctions are used in SCR fabrication?

A

Two layer two junctions

B

Four layer three junctions

C

Three layer three junctions

D

Three layer four junctions

Question 15 1 Marks

What will happen in SCR with forward biased condition and gate current is applied?

A

Reverse current conduction commences

B

Forward current conduction stops

C

Reverse current turned off

D

Forward current conduction commences

Question 16 1 Marks

What is the function of solid state relay(SSR)?

A

Low pass filter

B

High frequency oscillator

C

High gain amlifier

D

High speed switching

Question 17 1 Marks

Which semiconductor devices are composed inside the solid state relays?

A

Diodes and transistors

B

Thyristor and transistors

C

MOSFETs and IGBTs

D

UJYs and FETs

Question 18 1 Marks

What type of control is used for FET?

A

Resistance controlled device

B

Voltage controlled device

C

Current controlled device

D

Frequency controlled device

Question 19 1 Marks

Which parameter controls the current flow in a BI-polar transistor?

A

Voltage

B

Current

C

Frequency

D

Resistance

Question 20 1 Marks

How the solid state relays are working for increased lifetime?

A

Bulky profile

B

Slower in operations

C

Spark generated during switching

D

No moving parts to wear and tear