Free Printable ECE 1

1.

who invented op amp ?

a)

Karl D. Swartzel Jr

b)

alexander graham bell

c)

Mabel Gardiner Hubbard

d)

Elsie Bell

2.

which language is used in arduino ?

a)

C & C++

b)

Python

c)

JAVA

d)

JAVA SCRIPT

3.

Where should the value of TX9 bit be loaded during the 9 bit transmission in an asynchronous mode?

a)

TXSTA

b)

RCSTA

c)

SPBRG

d)

All of the above

4.

The most commonly used semiconductor material is?

a)

Silicon

b)

Germanium

c)

A mix of silicon and germanium

d)

None of the above

5.

One ev is equal to __________ J

a)

$6.02\times10_{23}$

b)

$1.6\times10_{-19}$

c)

$6.25\times10_{18}$

d)

$1.66\times10_{-24}$

6.

A Thermistor is a

a)

Thermocouple

b)

Thermometer

c)

Miniature resistance

d)

Heat sensitive explosive

7.

In an ideal diode there is no breakdown, no___ current, and no forward ___ drop.

a)

Reverse, Voltage

b)

Forward, Current

c)

Forward, Voltage

d)

Reverse, Current

8.

Free electrons exist in

a)

First band

b)

Second band

c)

Third band

d)

Conduction band

9.

In a bipolar transistor, the emitter base junction has

a)

Forward bias

b)

Reverse bias

c)

Zero bias

d)

None of this above

10.

__________ is known as fastest switching logic family

a)

CMOS

b)

TTL

c)

DTL

d)

ECL

11.

____ number of terminals does a diode have

a)

1

b)

2

c)

3

d)

4

12.

In a semiconductor which of the following carriers can contribute to the current?

a)

Electrons

b)

Holes

c)

Both

d)

None

13.

Which of the following regions are part of the output characteristics of a transistor?

a)

Active

b)

Cutoff

c)

Saturation

d)

All the above

14.

BJT is a ___ device & FET is a ____ device

a)

Bipolar, bipolar

b)

bipolar, unipolar

c)

unipolar, bipolar

d)

unipolar , unipolar

15.

DECT stands for

a)

Digital European Cellular Telex

b)

.Digitized Emergency Cellular Telephone

c)

.Digital European Cordless Telephone

d)

Digital European Cellular Telephone

16.

MIN stands for

a)

Mobile Identification Number

b)

Mobile Internet

c)

Mobility In Network

d)

None of the above

17.

In which of the following state does the silicon diode have the voltage drop of 0.7V?

a)

No bias

b)

Forward Bias

c)

Reverse Bias

d)

Zener region

18.

Depletion region contains

a)

Free holes

b)

Free electrons

c)

Immobile charge carriers

d)

All of the above

19.

Which of the following is the first commercial satellite?

a)

Early Bird

b)

Telstar

c)

Explorer

d)

Courier

20.

Satellite engine uses

a)

Jet propulsion

b)

Ion propulsion system

c)

Liquid fuel

d)

Solar jet

ECE 1

Total questions: 20

Worksheet time: 10mins

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