Integrated Circuits Quiz # 5

What does the bottom layer in an integrated circuit consist of?

p- type silicon

n- type silicon

Silicon Dioxide

Aluminium

For a band reject filter:

the cut off frequency of a low pass section is greater than the cut off frequency of a high pass section.

the cut off frequency of a low pass section is equal to the cut off frequency of a high pass section.

the cut off frequency of a low pass section is smaller than the cut off frequency of a high pass section.

How is a storage cell identified in the coincident selection method of random access memory?

From the value of the X address line

With the help of a three dimensional matrix

From the value of the Y address line

From the value of the point where X lines and Y lines intersect

The decoder in an MOS-ROM contains:

NAND gates which are non static.

NOR gates which are static.

NAND gates which are static.

NOR gates which are non static.

The region of the transistor of an integrated circuit in which both the emitter and the collector junctions are forward biased is known as the:

cut off region.

saturation region.

active region

Which amplifier has infinite input and output resistance?

Voltage amplifier

Current amplifier

Transresistance amplifier

Transconductance amplifier

In a ladder type D/A converter, _______

twice the number of resistances is equal to the number of bits.

the number of resistances is equal to the number of bits.

thrice the number of resistances is equal to the number of bits.

half the number of resistances is equal to the number of bits.

If the transition of a binary is made from state 0 to 1, the output makes a transition from state 1 to 0. This is a characteristic of_______.

divide by N counter

ripple counter

synchronous counter

up-down counter

The resistivity of a conductor in an integrated circuit is 10 ohms meter and the thickness of the conductor is 10 meters. Calculate the resistance of the conductor?

1 ohm

20 ohms

100 ohms

10 ohms

Which type of transistor construction techniques consists of forming both the emitter and the collector junction by subjecting a semi-conductor to gaseous n- type and p- type impurities?

Grown type construction

Alloy type construction

Diffusion type construction

Epitaxial type construction

If the analog voltage in an analog to digital converter is 4 volts, how many pulses will it generate?

2

4

6

8

What is the value of the lower base emitter breakdown voltage?

~7 volts

~8 volts

~9 volts

~10 volts

The p- type substrate of an integrated circuit has a resistivity of:

10 ohmic centimeters

20 ohmic centimeters

30 ohmic centimeters

40 ohmic centimeters

A 3-db frequency is the one in which:

resistance is equal to the capacitive reactance.

resistance is half of the capacitive reactance.

resistance is double the capacitive reactance.

resistance is one fourth of the capacitive reactance.

Which of the following techniques consists of manufacturing unit cells?

Discretionary wiring

Fixed interconnection pattern manufacturing

Polycell making

Which among the following is correct of an 'Encoder'?

It accepts an M-bit word.

Only one of the inputs is in state 1.

It generates an N-bit code.

It establishes the state 1 on only 1.

Which among the above diagram is an unblinking waveform for a character generator

A

B

C

D

What is the slew rate in a monolithic operational amplifier?

10 volts per micro second

5 volts per micro second

1 volt per micro second

2 volts per micro second

Which among the following is a characteristic of programmable attenuator?

It is used as a fixed reference voltage.

The output is the sum of the digital word and the analog voltage.

The output voltage is twice the input voltage.

The output depends upon the binary word.

Which among the following methods of compensation introduces Phase lag into the amplifier?

Pole zero or lag lead compensation

Lead compensation

Dominant pole compensation

In which among the following waveform generators is the circuit referred to as

A triangle wave generator

A square wave generator

A pulse generator

In which among the following types of circuits is it possible to fabricate PNP and NPN transistors within the same Silicon substrate?

Hybrid circuits

Dielectric isolated integrated circuits

Beam lead monolithic circuits

The time during which the anode voltage should be kept below the maintaining voltage till a critical value is achieved is known as the:

turn on time.

gate recovery time.

turn off time.

gate time to hold.

How many leads are there in a dual in line package of an integrated circuit?

10

11

12

13

14

Which among the given options, in the above image, is the 'diffusion law equation' where N is the amount of substance, t is time, D is diffusion coefficient, X is the position or length?

N is the amount of substance,
t is time,
D is diffusion coefficient,
X is the position or length?

A

B

C

D

In which among the following classes of amplifiers does the current flow all the time in the output circuit? Answers:

Cass A

Class B

Class AB

Class C

The weight of the most significant bit (MSB) is:

twice the stable reference voltage.

thrice the stable reference voltage.

half the stable reference voltage.

equal to the stable reference voltage.

In an ideal operational amplifier, the value of input resistance R is equal to _______.

∞

0

1

-1

Which application of a read only memory is used when an address is changed by means of a counter?

Combination logic

Character generator

Seven segment visible display

Sequence generator

Look up table

How many layers of material are there in the basic structure of an integrated circuit?

2

3

4

5

Quiz:	Integrated Circuits Quiz # 5
Total Questions:	30 MCQs
Time:	30 Minutes