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Online Tests
General Science 10th Class English Medium Chapter 9 Online Test MCQs With Answers
Question # 1
The frequency of the carrier waver used of radio transmission:
Choose an answer
30 KHZ
40 KHZ
50 KHZ
60 KHZ
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Question # 2
Which of the following is a brain of computer?
Choose an answer
Central processing unit
Mouse
Monitor
Hard disc
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Question # 3
The current flow from p-type semi conductors is due to.
Choose an answer
Free electrons
Valance electrons
Doping
Hole
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Question # 4
Which of the following are electromagnetic waves:
Choose an answer
sound
water waves
Ultrasound
light
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Question # 5
The number of hovering satellites which can send transmissions to all over the world:
Choose an answer
one
Two
Three
Four
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Question # 6
Word FAX is short form of.
Choose an answer
Facsiline
Facsimile
Fasimile
None of these
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Question # 7
the number of (101)
10
in decimal is equal to .......... inbinary.
Choose an answer
0101111
0000101
10101101
1100101
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Question # 8
The substances through which current con not pass are called:
Choose an answer
Semi - conductors
Insulators
conductors
non - metal
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Question # 9
Which of the following is an input device:
Choose an answer
key board
printer
monitor
CPU
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Question # 10
The examples of semi - conductors:
Choose an answer
sodium and potassium
calcium and potassium
Germanium and silicon
carbon and nitrogen
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Question # 11
Revolutionary charges have occur in last ............. years.
Choose an answer
30
40
50
60
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Question # 12
Hovering satellite completes its rotation in 24 hours at the height of:
Choose an answer
360 km
3600 km
36000 km
360000 km
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Question # 13
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
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Question # 14
Digital singles are represented by;
Choose an answer
zero and 1
zero and 10
1 and 2
o and 9
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Question # 15
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
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