UAF ENTRY TEST PAST PAPER 23-07-2017
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
Cunning
Cautious
Lazy
None of these
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Explanation
Indolent means کام چور یا سست
Lazy means کام سے جی چرانے والا
اگر غیر پروٹین کا حصہ انزائم کے پروٹین حصے کے ساتھ ڈھیلے طور پر پابند ہے تو ، اسے _____ کہا جاتا ہے؟
Co-enzyme
Cofactor
Activator
None of these
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Explanation
A co-enzyme is a non-protein organic molecule that is loosely bound to the enzyme and helps in its activity.
It often acts as a carrier of electrons or functional groups (e.g., NAD⁺, FAD).
آاسوٹوپس ایک ہی عنصر کے ایٹم ______ کی مختلف تعداد کے ساتھ ہیں؟
Electrons
Protons
Neutrons
Positron
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Explanation
Atoms of the same element with different numbers of neutrons are called isotopes. Atoms of the same element have the same number of protons and electrons but different numbers of neutrons.
مندرجہ ذیل میں سے کون سی ویکٹر کی مقدار ہے؟
Speed
Velocity
Temperature
None of these
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Explanation
Velocity is a vector quantity.
A vector quantity has both magnitude and direction.
Velocity, which describes the rate of change of position in a specific direction, needs both a magnitude (speed) and a direction to be fully defined.
Vector Quantities : Velocity, momentum, torque, acceleration.
Scalar Quantities: Work, distance, speed, mass.
کونیی ایکسلریشن _______ کے ذریعہ تیار کیا جاتا ہے؟
Momentum
Pressure
Torque
Power
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Explanation
Angular acceleration is produced by torque .
Torque is the rotational equivalent of force.
And just as force causes linear acceleration, torque causes angular acceleration.
ایک جیسی توانائی رکھنے والے مداروں کو ___ کہتے ہیں۔
Degenerate orbitals
Hybrid orbitals
Valance orbitals
None of these
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Explanation
Orbitals that have the same energy level are called degenerate orbitals.
This concept is important in understanding electron behavior and how they fill atomic orbitals, following principles like the Aufbau principle and Hund's rule.
For example, in a hydrogen atom, all orbitals with the same principal quantum number (n) are degenerate.
پرکشیپک اور سرکلر تحریک _____ طول و عرض میں حرکت کی مثالیں ہیں۔
Two
Three
Four
None of these
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Explanation
Projectile motion occurs in a plane (e.g., vertical and horizontal directions), so it is two-dimensional (2D). Circular motion also occurs in a plane (e.g., x-y plane) and is two-dimensional , even if the circle is in 3D space , its path is confined to a plane.
آبی آرتروپڈس _____ کے ذریعے سانس لیتے ہیں؟
Gills
Book lungs
Spiracles
None of these
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Explanation
Aquatic arthropods like crabs, prawns, and some aquatic insects use gills to extract oxygen from water.
Gills provide a large surface area for gas exchange in an aquatic environment .
خالص پانی کی موللٹی ______ ہے؟
1
18
55.6
6
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Explanation
Molarity is calculated by dividing the number of moles of solute by the volume of solution in liters.
Therefore, the molarity of pure water is approximately 55.56 moles/L, or approximately 55.5 M.
گلوکوز کا تجرباتی فارمولا _____ ہے؟
CHO
CH
C6H6
CH2O
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Explanation
The empirical formula of glucose is CH2O .
This represents the simplest whole-number ratio of the elements in glucose.
It has a molecular formula of C6H12O6.