Sub-Inspector Himachal Pradesh Police Exam 2016 (Science Ques)

1. Which of the following gas is not known as green house gas?

A) Methane

B) Carbon dioxide

C) Nitrous oxide

D) CFC

2. Heavy water is

A) tritium oxide

B) deuterium oxide

C) rain water

D) Water at 4 ‘C

3. The process of evaporation causes :

A) Cooling

B) Heating

C) Dryness

D) None of the above

4. At higher altitudes the boiling points of liquids

A) Increases

B) Decreases

C) Remains the same

D) Increases and then decreases

5. Which of the following is not a chemical reaction?

A) Dissolution of sugar in water

B) Rusting of iron

C) Digestion of food

D) Souring of milk

6. Chemical formula of lime water is :

A) Ca(OH)

B) Ca(OH)2

C) Ca(OH)3

D) NaOH

7. Setting of cement is an example of :

A) hydrolysis

B) hydration

C) dehydration

D) decomposition

8. Which of the following acts as an oxidizing agent?

A) KMnO4

B) HNO3

C) K2Cr2O7

D) All of these

9. The acid present in the ant sting is:

A) Acetic acid

B) Formic acid

C) Citric acid

D) Tartaric acid

10. Potassium permanganate is used for purifying the drinking water because

A) It is a sterilizing agent

B) It dissolves the impurities of water

C) It is a reducing agent

D) It is an oxidizing agent

11. Cobalt-60 is commonly used in radiation therapy because it emits

A) alpha rays

B) beta rays

C) gamma rays

D) X-rays

12. In which of the following molecule, the angle around the central atom is largest?

A) CO2

B) NH3

C) CH4

D) H2O

13. The process of fusion is used for making a

A) Atom Bomb

B) Ordinary Bomb

C) Neutron Bomb

D) Hydrogen Bomb

14. Brass is an alloy of

A) Cu+ Zn

B) Cu + Sn

C) Sn+ Pb

D) Zn+ Sn

15. The colour of the blue litmus paper when dipped in a solution of aluminum chloride

A) Remains the same

B) Changes to red

C) Changes to dark blue

D) None of these

16. The sugar that is characteristics of milk is

A) Maltose

B) Ribose

C) Lactose

D) Galactose

17. Acidic hydrogen is present in

A) Ethyne

B) Ethene

C) Benzene

D) Ethane

18. When a body falls freely towards the earth, then its total energy……….

A) Increases

B) Decreases

C) Remain constant

D) Firstly increases then decreases

19. Water stored in dams possesses………..

A) No energy

B) Kinetic energy

C) Electrical energy

D) Potential energy

20. If a spring is stretched then its potential energy…………

A) Increases

B) Remains the same

C) Decreases

D) Becomes zero

21. Nails have pointed ends. This results in a/an

A) Decrease in the force exerted on them.

B) Decrease in the effect of the force exerted on them

C) Increase in the force exerted on them

D) Increase in the effect of the force exerted on them.

22. When we press the bulb of a dropper, with its nozzle kept under water, and then release the pressure on the bulb, water gets filled in the dropper. The rise of water in the dropper is due to

A) Atmospheric pressure

B) Liquid pressure

C) Weight of the bulb

D) Gravity of the earth

23. The magnetic field inside a long straight solenoid carrying current is

A) Zero

B) Increases towards it end

C) Same at all points

D) None of these

24. Which magnets are used in commercial motors?

A) Horse shoe magnet

B) Electric magnet

C) Bar magnet

D) None of these

25. How many Gauss are in one Tesla?

A) 103

B) 104 (Ten raise to power 4)

C) 105

D) 106

26. In case of spherical mirrors, the focal length and radius of curvature are related as

A) f = R/2

B) f = 2R

C) f = R

D) None of these

27. Lenz’s law is a consequence of law of conservation of

A) Charge

B) Mass

C) Momentum

D) Energy

28. Domain formation is necessary feature of

A) Diamagnetics

B) Paramagnetics

C) Ferromagnetics
D) All of these

29. Two bullets are fired simultaneously, horizontally with different speeds from same place. Which bullet will hit the ground first?

A) The faster one

B) The slower one

C) Depends on their masses

D) Both will reach simultaneously

30. A passenger in a moving train tosses a coin which falls behind him. It means that motion of the train is

A) Accelerated

B) Uniform

C) Retarded

D) Along circular tracks

31. Distance-time graph parallel to time axis indicate

A) Body at rest

B) Body moving with uniform speed

C) Body in uniform motion

D) None of these

32. Action and reaction do not balance each other because they

A) act on the same body

B) do not act on the same body

C) are in the opposite direction

D) are unequal

33. A red flower when illuminated by green light appears….

A) Yellow

B) Purple

C) Black

D) Green

34. Pressure on liquid

A) Increases with depth

B) Decreases with depth

C) Remains same with depth

D) None of these

35. The thumb of humans moves more freely than other fingers due to the presence of

A) Gliding joint

B) Hinge joint

C) Saddle joint

D) Pivotal joint

36. Which part of the eye is adjustable in accordance with the light conditions?

A) Iris

B) Retina

C) Pupil

D) Lens

37. …………… is the metal which is a constituent of Hemoglobin.

A) Zn

B) Al

C) Fe

D) Cu

38. The anther contains

A) Sepals

B) Ovules

C) Carpel

D) Pollen grains

39. …………..is a plant hormone.

A) Insulin

B) Thyroxin

C) Estrogen

D) Cytokinin

40. Amoeba reproduces by

A) Binary fission

B) Budding

C) Fragmentation

D) Sexually

41. The ATP as enzyme is located in the Mitochondria in

A) Oxysomes

B) Outer membrane

C) Inner membrane

D) Matrix

42. In a flower, the parts that produce male and female gametes ( germ cells) are

A) Stamen and anther

B) Anther and ovary

C) Filament and Stigma

D) Stamen and style

43. A trait in an organism is influenced by

A) Paternal DNA only

B) Maternal DNA only

C) Both maternal and paternal DNA

D) Neither by paternal nor by maternal DNA

44. Human heart contains ………… chambers.

A) 2

B) 3

C) 4

D) 5

45. …………. acid is produced when milk gets sour.

A) Acetic

B) Lactic

C) Tartaric

D) Butyric

46. Widal test is associated with

A) AIDS

B) Tuberculosis

C) Tetanus

D) Typhoid

47. Meiosis takes place in

A) Apical meristem

B) Inter calary meristem

C) Reproductive cells

D) Vegetative cells

48. The digestion of starch in alimentary canal of human starts in

A) Buccal cavity

B) Ileum

C) Stomach

D) Duodenum

49. Name the blood cell in which nucleus is absent

A) Lymphocytes

B) Blood platelets

C) Monocytes

D) Eosinophils

50. …………….prevents diseases in human body.

A) Hormones

B) Enzymes

C) Red Blood Cells

D) White Blood Cells

Read more: SI Exam 2016 (Mics)