PAKISTAN AIR FORCE PAF PAST PAPERS, SYLLABUS
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
- Round
- Rectangle
- Square
- None of these
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Explanation
A circle is a perfectly round shape with all points equidistant from its center.
It creating a continuous curved boundary.
- From
- With
- Of
- By
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Explanation
Ashamed is generally followed by of.
Of is a preposition here.
Ashamed of something means کسی بات پر شرمندہ ہونا
He is ashamed of his conduct.
- From
- With
- By
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Explanation
With is a preposition here.
Trembling with cold means سردی سے کانپنا
"My brother was trembling with cold."
We use with here to show the cause or reason for the trembling.
قدرتی ربڑکس سے حاصل کیا جاتا ہے؟
- Animal Waste
- A special kind of tree
- A kind of fish
- Water weeds
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Explanation
Natural rubber is made by extracting a liquid sap, called latex.
Latex is gathered from the trees by making a cut in the bark and collecting the runny sap in cups. This process is called tapping.
Largest Country produced Natural rubber
| 1 | Thailand |
| 2 | Indonesia |
| 3 | Vietnam |
| 4 | India |
- Transistor
- Inductor
- Diode
- Transformer
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Explanation
The component of electronics that acts as a rectifier is a diode.
Diodes allow current to flow in one direction only.
It enabling the conversion of alternating current (A.C.) into direct current (D.C.) by blocking the reverse flow.
درجہ حرارت میں اضافے کے ساتھ سیمی کنڈکٹر کی مزاحمت ______؟
- Increases
- Remain same
- Infinite
- Decreases
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Explanation
The resistance of a semiconductor with a rise in temperature decreases.
This occurs because increasing temperature provides more energy to charge carriers.
It allowing them to move more freely and conduct electricity better.
- Gigaamperes
- Kiloamperes
- Megaamperes
- Microamperes
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Explanation
In a reverse-biased PN junction, the reverse current is typically very small, usually in the range of microamperes (μA).
This current is primarily due to minority charge carriers.
- Paralysis
- Blindness
- Weakness
- Injury
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Explanation
Just as "Deafness" refers to the loss of hearing in the Ears.
"Paralysis" refers to the loss of movement in the Legs.
- Search
- Advance
- Join
- Abandon
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Explanation
Abdicate means ترک کرنا
Abandon means ترک کرنا
اگر تمام ان پٹ 1 ہیں تو کون سا منطق یونٹ 0 آؤٹ پٹ دیتا ہے؟
- NOR
- NAND
- Both A and B
- NOT
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Explanation
From the above-shown logic tables, we can say that for the NAND and NOR gate, we will get the output '0' when both the inputs are 1.