UPCATET Previous Year Question Papers

21. A Parachute Descends Slowly Whereas A Stone Dropped From The Same Height Falls Rapidly Because

⚪Special Mechanisms Are Present In Parachute
⚪A Parachute Has A Larger Surface Area And Air Resistance Is More
⚪Stone Is Heavier Than Parachute
⚪None Of These
Answer
a Parachute Has A Larger Surface Area And Air Resistance Is More

22. Which Of The Following Laws Validates The Statement That Matter Can Neither Be Created Nor Destroyed ?

⚪Le Chateliers Principle
⚪Law Of Conservation Of Mass
⚪Law Of Osmosis
⚪Law Of Conservation Of Energy
Answer
Law Of Conservation Of Mass

23. In Nuclear Reactor Heavy Water Is Used As

⚪Coolant
⚪Fuel
⚪Moderator
⚪Atomic Smasher
Answer
moderator

24. During The Final Stage Of Cell Division, The Mitotic Apparatus Disappears, The Chromosomes Become Attenuated, The Centrioles Duplicate And Split, The Nuclear Membrane Becomes Reconstituted And The Nucleolus Reappears. This Phase Of Cell Division Is Known As:

⚪Metaphase
⚪Anaphase
⚪Telophase
⚪ Prophase (Pron: PrO-Phase)
Answer
telophase

25. Intensity Of Gravitational Field Of Earth Is Maximum At

⚪Equator
⚪Centre Of Earth
⚪Surface
⚪Poles
Answer
Poles

26. When A Person Walking In Bright Sunlight Enters A Dark Room He Is Not Able To See Clearly For A Little While Because

⚪The Retina Retains The Bright Images For Sometime And Becomes Momentarily Insensitive.
⚪The Iris Is Unable To Contract The Pupil Immediately
⚪The Iris Is Unable To Dilate The Pupil Immediately
⚪The Eye Muscles Cannot Immediately Adjust The Focal Length Of The Eye Lens.
Answer
the Iris Is Unable To Dilate The Pupil Immediately

27. Two Stones Of Unequal Masses Are Thrown Vertically Up With The Same Velocity. Which Of The Following Will Happen?

⚪The Heavier Mass Will Reach Greater Height
⚪The Lighter Mass Will Reach Greater Height
⚪Any Of Them May Reach Great Height
⚪Both Will Reach The Same Height
Answer
Both Will Reach The Same Height

28. A Copper Disc Has A Hole. If The Disc Is Heated The Size Of The Hole

⚪No Change
⚪Increases
⚪Decreases
⚪First Increases And Than Decreases
Answer
increases

29. 5 Men And 12 Boys Finish A Piece Of Work In 4 Days, 7 Men And 6 Boys Do It In 5 Days. The Ratio Between The Efficiencies Of A Man And Boy Is?

⚪1:2
⚪2:1
⚪ 2:3
⚪6:5
Answer
6:5

30. The Centre Of Gravity Of A Sprinter During The Race Lies

⚪Ahead Of His Feet
⚪Behind His Feet
⚪At The Centre Of The Body
⚪To The Left Side Of The Body
Answer
ahead Of His Feet

31. Rise Of Oil A Wick Is Due To

⚪Viscosity Of The Oil
⚪Pressure Of The Oil
⚪Surface Tension Of The Oil
⚪Density Of The Oil
Answer
surface Tension Of The Oil

32. The Number Of Mature Gametes Resulting From Meiosis In The Female Is:

⚪1
⚪2
⚪3
⚪4
Answer
1

33. The Type Of Gene Interaction In Which The Effects Of One Gene Override Or Mask The Effects Of Other Entirely Different Genes Is Called:

⚪Linkage
⚪Mutation
⚪Pleitropy (Pron: Ply-Ah-Tropy)
⚪Epistasis (Pron: Eh-Pis-Te-Sis)
Answer
epistasis (Pron: Eh-Pis-Te-Sis)

34. In A Nuclear Reactor One Of The Following Is Used As A Fuel

⚪Coal
⚪Uranium
⚪Radium
⚪Diesel
Answer
Uranium

35. An Ice Block With A Piece Of Lead Embedded In It Floats In Water. If Ice Melts The Water Level

⚪ Falls
⚪Rises
⚪Remains Same
⚪Falls First And Then Rises
Answer
Falls

36. Atomic Power Plant Work Son The Principle Of

⚪Combined Effect Of All The Above Three
⚪Fusion
⚪Thermal Combustion
⚪Fission
Answer
fission

37. Neutral Fats, Oils And Waxes May Be Classified As:

⚪Lipids
⚪Carbohydrates
⚪Proteins
⚪ None Of The Above
Answer
lipids

38. The Solution In Which Saturation Is Not Achieved Is Called .

⚪ Super Saturated
⚪Unsaturated
⚪Saturated
⚪Suspended
Answer
Unsaturated

39. Tyndall Effect Is Producted By . A) True Solutions Of Light

⚪ True Solutions Of Light
⚪ Scattering Of Light
⚪ Refraction Of Light
⚪Movement Of Particles
Answer
Scattering Of Light

40. Bacteriophage (Pron: Back-Teer-E-O-Faj) Are:

⚪Bacteria
⚪Bacteria Precursors
⚪Viruses
⚪Agents Which Cause The Production Of Bacteria
Answer
viruses

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