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Semiconductor Quiz

Total questions: 54

Worksheet time: 27mins

Name
Class
Date
1.

In which industry are two-terminal packages extensively used for various components?

a)

Aerospace

b)

Agriculture

c)

Entertainment

d)

Fashion

2.

What is the primary reason for the popularity of SMT in modern electronics manufacturing?

a)

Increased reliability

b)

Lower component availability

c)

Compatibility with automated assembly

d)

Easier rework processes

3.

What is the typical number of terminals in a two-terminal package for passive and active components?

a)

One

b)

Two

c)

Three

d)

Four

4.

What is a disadvantage of thick film ICs compared to thin film ICs?

a)

Lower thermal stability

b)

Limited design flexibility

c)

Higher manufacturing cost

d)

Reduced resistance to corrosion

5.

As the temperature of a semiconductor increases its

a)

Conductivity increases

b)

Resistivity increases

c)

Atomic number decreases

d)

Temperature co-efficient becomes zero

6.

Which of the following is a disadvantage of SMT?

a)

Limited automation capabilities

b)

Susceptibility to mechanical stress

c)

Higher initial setup costs

d)

Difficulty in inspecting solder joints

7.

What is the advantage of using two-terminal packages for electronic components?

a)

Increased complexity

b)

Enhanced durability

c)

Smaller footprint

d)

Higher power dissipation

8.

In an OLED, light is emitted due to the process of:

a)

Photoelectric effect

b)

Electroluminescence

c)

Photovoltaic effect

d)

Thermionic emission

9.

Thin film ICs are known for:

a)

Lower cost

b)

Higher performance

c)

Larger size

d)

Simplicity in fabrication

10.

Intrinsic semiconductors are those

a)

Which are made of semiconductor material in its purest form

b)

Which have zero energy gap

c)

Which have more electrons than holes

d)

Which are available locally

11.

A semiconductor has.... temperature co-efficient of resistance

a)

Zero

b)

Positive

c)

Negative

d)

None of the above

12.

Resistance of wire is inversely proportional to…..

a)

length

b)

area of cross-section

c)

both a and b

d)

none of these

13.

A pure semiconductor behaves like an insulator at 00 K because

a)

There is no recombination of electrons with holes

b)

Drift velocity of free electrons is very small

c)

Free electrons are not available for current conduction

d)

Energy possessed by electrons at that low temperature is almost zero

14.

A doped semiconductor is also known as

a)

Intrinsic semiconductor

b)

Extrinsic semiconductor

c)

Diffused semiconductor

d)

None of the above

15.

The temperature co-efficient of an intrinsic semiconductor is.......

a)

Zero

b)

Positive

c)

Negative

d)

None of them

16.

A semiconductor in its purest form is called.......

a)

Insulator

b)

Superconductor

c)

Intrinsic semiconductor

d)

Extrinsic semiconductor

17.

A semiconductor in its purest form is called.......

a)

Insulator

b)

Superconductor

c)

Intrinsic semiconductor

d)

Extrinsic semiconductor

18.

In a semiconductor diode, the barrier offers opposition to

a)

Majority carriers in both regions

b)

Majority as well as minority carriers in both regions

19.

A doped semiconductor is also known as

a)

Intrinsic semiconductor

b)

Extrinsic semiconductor

c)

Diffused semiconductor

d)

None of the above

20.

In a two-terminal package, what is the purpose of the terminals?

a)

To connect to a power source

b)

To provide structural support

c)

To interface with other components or circuits

d)

To dissipate heat

21.

In SMT, what is used to attach components to the PCB?

a)

Solder paste

b)

Glue

c)

Epoxy

d)

Welding

22.

Resistance of given wire is directly proportional to…….

a)

Length

b)

area of cross-section

c)

both a and b

d)

none of these

23.

What environmental advantage does SMT offer compared to through-hole technology?

a)

Reduced lead content

b)

Higher energy consumption

c)

Increased waste generation

d)

Lower recycling potential

24.

In case of semiconductors, recombination is merging of

a)

An electrons with a hole

b)

An outside electron with semiconductor electrons

c)

Two or more electrons

d)

Two or more holes

25.

The energy gap is much more in silicon than in germanium because

a)

It has less number of electrons

b)

It has high atomic mass number

c)

Its crystal has much stronger bonds called ionic bonds

d)

Its valence electrons are more tightly bound to their parent nuclii

26.

What is the primary function of a two-terminal package for passive and active components?

a)

To provide power to the circuit

b)

To connect to external sensors

c)

To amplify signals

d)

To house and connect electronic components

27.

Which of the following components is commonly found in a two-terminal package?

a)

Microcontroller

b)

Transistor

c)

LCD display

d)

Ethernet connector

28.

In addition to displays, OLED technology is also used for:

a)

Heating systems

b)

Automotive engines

c)

Lighting panels

d)

Satellite communication

29.

A P-type semiconductor results when

a)

A pentavalent impurity is added to an intrinsic semiconductor

b)

A trivalent impurity is added to an intrinsic semiconductor

c)

Either a pentavalent or trivalent impurity is added to an intrinsic semiconductor

d)

None of the above

30.

In a N-type semiconductor, the positive of the Fermi level

a)

Is at the centre of the energy gap

b)

Is lower than the centre of energy gap

c)

Is higher than the centre of energy gap

d)

Can be anywhere depending upon the doping concentration

31.

In semiconductor the forbidden energy gap lies

a)

Just below the conduction band

b)

Just above the conduction band

c)

Either above or below the conduction band

d)

Between the valence band and conduction band

32.

An intrinsic semiconductor at absolute zero........

a)

Becomes extrinsic semiconductor

b)

Behaves like an insulator

c)

Disintegrates into pieces

d)

Becomes superconductor

33.

What type of component is typically housed in a two-terminal package for active devices?

a)

Operational amplifier

b)

Light-emitting diode (LED)

c)

Voltage regulator

d)

Metal-oxide-semiconductor field-effect transistor (MOSFET)

34.

The conduction band

a)

Is always above the forbidden energy level

b)

Is the region of free electrons

c)

Concentrates holes for the flow of current

d)

Is a range of energies corresponding to the energies of the free electrons

35.

Which of the following is a common application of hybrid ICs?

a)

Microcontrollers

b)

Power amplifiers

c)

Flash memory

d)

Field-Programmable Gate Arrays (FPGAs)

36.

Intrinsic semiconductor at room temperature will have, ................. available for conduction

a)

Electrons

b)

Holes

c)

Both electrons and holes

d)

None of the above

37.

The reciprocal of resistivity is known as

a)

Specific resistance

b)

conductivity

c)

inductance

d)

resistance

38.

A P-type semiconductor results when

a)

A pentavalent impurity is added to an intrinsic semiconductor

b)

A trivalent impurity is added to an intrinsic semiconductor

c)

Either a pentavalent or trivalent impurity is added to an intrinsic semiconductor

d)

None of the above

39.

The forward region of a semiconductor diobe characteristic curve is where diode appears as

a)

High resistance

b)

An ON switch

c)

An OFF switch

d)

A capacitor

40.

Which industry has greatly benefited from the adoption of SMT?

a)

Automotive

b)

Textiles

c)

Agriculture

d)

Construction

41.

Which of the following is a semi-conductor

a)

Diamond

b)

Arsenic

c)

Phosphorous

d)

Gallium arsenide

42.

Which component is an example of a passive device that can be found in a two-terminal package?

a)

Diode

b)

Microprocessor

c)

Voltage regulator

d)

Integrated circuit

43.

Which of the following doping elements would not be suitable for converting intrinsic semiconductor

a)

Phosphorous

b)

Indium

c)

Antimony

d)

Arsenic

44.

Which type of component often uses a two-terminal package for high-frequency applications?

a)

Resistor

b)

Capacitor

c)

Inductor

d)

Transformer

45.

Which factor contributes to the smaller size of SMT components compared to through-hole components?

a)

Reduced cost

b)

Smaller packaging

c)

Increased durability

d)

Higher power handling capacity

46.

In photo emissive materials, the emission of electrons occurs in response to:

a)

Heat

b)

Light

c)

Pressure

d)

Sound waves

47.

The magnetic susceptibility of diamagnetic materials is usually in the range of:

a)

0 to 1

b)

-1 to 0

c)

-1 to -10

d)

1 to 10

48.

Which parameter is often crucial in the selection of two-terminal packages for electronic components?

a)

Operating voltage

b)

Temperature range

c)

Physical size

d)

Number of pins

49.

Which property of a dielectric material makes it suitable for use in capacitors?

a)

High conductivity

b)

Low permittivity

c)

High permittivity

d)

Low resistance

50.

Which type of transistor has an N-type semiconductor sandwiched between P-type regions?

a)

PNP

b)

NPN

c)

FET

d)

JFET

51.

Consider the energy level diagram of an intrinsic semiconductor. The Fermi level lies in the

a)

Valence band

b)

Forbidden band

c)

Conduction band

d)

It can be at any of the above locations depending upon the doping concentration and temperature

52.

Which of the following cannot exist outside a semiconductor

a)

Hole

b)

Electron

c)

Both (a) and (b)

d)

None of the above

53.

Which color is associated with an LED that has a bandgap energy in the red part of the spectrum?

a)

Blue

b)

Green

c)

Red

d)

Yellow

54.

Zener diodes are commonly used for:

a)

Current amplification

b)

Voltage regulation

c)

Frequency modulation

d)

Temperature sensing

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