More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
General Science 10th Class English Medium Chapter 9 Online Test MCQs With Answers
Question # 1
The elements used to increase the number of free electrons in the semi - conductor belong to:
Choose an answer
2
nd
group
3
rd
group
4
th
group
5
th
group
Previous
Skip
Next
Question # 2
Which element is used to make LED?
Choose an answer
Aluminum
Calcium
sodium
Arsenic
Previous
Skip
Next
Question # 3
How many electrons Guns are used in colour T.V?
Choose an answer
One
Two
Three
Four
Previous
Skip
Next
Question # 4
Electric signal is converted into digital signal by.
Choose an answer
Key board
Monitor
Scanner
Modem
Previous
Skip
Next
Question # 5
Which of the following is an input device:
Choose an answer
key board
printer
monitor
CPU
Previous
Skip
Next
Question # 6
The numebr (100)16 in decimal is equal to............. in binary.
Choose an answer
1110100
01011101
1100100
1001001
Previous
Skip
Next
Question # 7
Which of the following are electromagnetic waves:
Choose an answer
sound
water waves
Ultrasound
light
Previous
Skip
Next
Question # 8
in binary system. 37 is written as.
Choose an answer
101101
100101
110011
101011
Previous
Skip
Next
Question # 9
The major function of electronic devices is to amplify the ........ signals.
Choose an answer
Stronge electric
Semi strong electric
Both a and c
weak electric
Previous
Skip
Next
Question # 10
Which of the following is used as rectifier;
Choose an answer
semi - conductor diode
resistors
capacitors
Germanium
Previous
Skip
Next
Question # 11
analogue signal is recorded on.
Choose an answer
Magnetic tape
Floppy disk
Hard Disk
C.D
Previous
Skip
Next
Question # 12
The substances through which current con not pass are called:
Choose an answer
Semi - conductors
Insulators
conductors
non - metal
Previous
Skip
Next
Question # 13
Word"Computer" is derive from.
Choose an answer
Machine
Calculator
Compute
All of these
Previous
Skip
Next
Question # 14
In P-type semi -conductior, most of the current is due to.
Choose an answer
Free electron
Holes
Positive ions
Heat
Previous
Skip
Next
Question # 15
Word FAX is short form of.
Choose an answer
Facsiline
Facsimile
Fasimile
None of these
Previous
Skip
Next
Back