Science – WBPSC Miscellaneous Preliminary Question Paper

Science – WBPSC Miscellaneous Preliminary Question Paper

Miscellaneous Question Paper – 2019

2. What is the SI unit of radioactivity?

(A) Ampere

(B) Volt

(C) Becquerel

(D) Curie

 

4. Generally, non-metals do not conduct electricity. Which of the following conducts electricity?

(A) Diamond

(B) Graphite

(C) Sulfur

(D) Fullerene

 

5. Most plants absorb nitrogen in the form of

(A) proteins

(B) nitrates and nitrites

(C) urea

(D) nitrates, nitrites and urea

 

7. The chemical responsible for plant growth is

(A) Citric Acid

(B) Chlorophyll

(C) Indole Acetic Acid

(D) Phenyl Acetic Acid

 

14. Oxygen liberated during photosynthesis comes from

(A) water

(B) carbon dioxide

(C) glucose

(D) Both carbon dioxide and glucose

 

30. The Solar Energy results from the

(A) Chemical reactions between H and He atoms.

(B) Fusion reactions of H and He atoms.

(C) Fission reactions of He atoms.

(D) Electrochemical reactions of H atoms.

 

34. Number of spinal nerves in human are

(A) 11 pairs

(B) 27 pairs

(C) 32 pairs

(D) 31 pairs

35. Which one of the following is used for baking fruit?

(A) Ethylene

(B) Methane

(C) Chlorine gas

(D) Isopropyl alcohol

 

36. Under critical temperature, on compressing gases turn to liquid, because

(A) molecules are of finite size.

(B) molecules have random motion.

(C) molecules have intermolecular forces.

(D) molecules are spherical.

 

37. When a few drops of iodine solution is added to rice water, the solution turns blue-black in colour. This indicates that rice water contains

(A) fats

(B) complex proteins

(C) starch

(D) simple proteins

 

50. What is the percentage of Calcium in Calcium Carbonate?

(Molar mass)

(A) 50

(B) 10

(C) 40

(D) 100

 

51. The most important safety method used for protecting home appliances from short circuiting or overloading is

(A) earthing

(B) use of fuse

(C) use of stabilizer

(D) use of electric meter

 

55. When NaCl is dissolved in water, every Na+ ion is surrounded by

(A) Cl- ions

(B) Na+ ions

(C) Na+ and Cl- ions

(D) H2O molecules

 

56. Among CO2, H2O vapour, CH4 and CO, the most abundant Greenhouse gas is

(A) CO2

(B) CO

(C) H2O vapour

(D) CH4

57. Electrical wires are coated with an insulating material. Generally, the material used is

(A) Sulfur

(B) Graphite

(C) PVC

(D) All of the above

 

58. In stainless steel, iron is mixed with

(A) Ni and Cr

(B) Cu and Cr

(C) Ni and Cu

(D) Cu and Zn

 

60. Which is the first enzyme to mix food in the digestive tract of human?

(A) Pepsin

(B) Cellulase

(C) Amylase

(D) Trypsin

 

64. If the vapour density of a gas is 32, what is its molecular weight?

(A) 64

(B) 16

(C) 32

(D) 128

 

66. Among Na+, Fe2+, Co3+ and Zn2+ which is/are not transition metal ions?

(A) Na+ and Co3+

(B) Fe2+ and Co3+

(C) Fe2+ and Zn2+

(D) Na+ and Zn2+

 

67. Which quantity remains constant in parallel connection of resistance?

(A) Electric current flow rate

(B) Potential Difference

(C) Amount of electricity

(D) Both the potential difference and amount of electricity

 

71. The filtration unit of kidney is called

(A) Ureter

(B) Urethra

(C) Neurons

(D) Nephrons

 

75. Carrier of Dengue disease is

(A) Aedes Mosquito

(B) Anopheles Mosquito

(C) Culex Mosquito

(D) None of the above

 

 

Miscellaneous Question Paper – 2018

44. Scientist C.V. Raman discovered

(A) Raman effect

(B) Raman Ray

(C) Life of tree

(D) X-Ray

 

80. Which one of the following is the World’s most heat resistant material?

(A) Hafnium Carbide (HfC)

(B) Nano Material (NM)

(C) Titanium (TM)

(D) None of the above

 

81. Who has developed the contact lens sensors to monitor things like stress hormones, uric

acid, pressure sensing for glaucoma?

(A) Professor Kit

(B) Professor Greg Herman

(C) Professor Sensor

(D) Professor Black William

 

82. Which University has developed the holographic imaging process that enables the radiation

of a standard Wi-Fi router to generate 3D (dimensional) images of the surrounding  environment?

(A) Technical University of China

(B) Singapore Technical University

(C) West Bengal Technical University

(D) Technical University of Munich

 

83. What is the full form of SCM?

(A) Standard Cosmological Model

(B) Strong Cosmological Model

(C) Stable Cosmological Model

(D) Strict Cosmological Model

 

84. The Large Hadron Collider beauty (LHCb) experiment is specialized for

(A) ‘beauty green’ study

(B) ‘beauty quark’ study

(C) ‘beauty red’ study

(D) ‘beauty white’ study

 

85. Which one of the following is the hip and knee replacement robot?

(A) Laprodoc

(B) Robodoc

(C) Neurodoc

(D) None of the above

86. Which tissue is the 79th organ of the human body?

(A) Mesentery

(B) Adenoids

(C) Colon

(D) Vulva

 

87. How many important muscles are there in the human body?

(A) 530

(B) 630

(C) 730

(D) 830

 

88. What is the name of the smallest muscle in the human body?

(A) Buttock Muscle

(B) Glutens Muscle

(C) Sartorius Muscle

(D) Stapedius Muscle

 

89. Hair in human body is made of the same substance as

(A) Knee

(B) Teeth

(C) Finger nails

(D) Skin

 

90. Distorted vision (Astigmatism) can be corrected by using which one of the following lenses?

(A) Cylindrical lens

(B) Convex lens

(C) Concave lens

(D) Bifocal lens

 

91. What is angiogram?

(A) It is a medical diagnostic test.

(B) It is a signal used in telegram office.

(C) It is a signal used in radio.

(D) It is a signal used in TV.

 

92. Which one of the following is not medical diagnostic test?

(A) Colonoscopy test

(B) McNaughton test

(C) Doppler test

(D) C. T. Scan test

93. What is the function of Electro Cardiogram test?

(A) It measures the legs function.

(B) It measures the blood flow.

(C) It measures the brain cells.

(D) It measures the heartbeat.

 

94. Zika virus disease transmitted through

(A) Mosquito

(B) Dog

(C) Cat

(D) Bird

 

95. In which year the first human heart transplantation took place?

(A) 1947

(B) 1957

(C) 1967

(D) 1977

 

96. What is the full form of AIDS?

(A) Acess Immuno-Deficiency Syndrome

(B) Acquired Immuno-Deficiency Syndrome

(C) Acquired Immuno-Deficiency System

(D) Acquired Immuno-Deficiency Sist

 

97. Oral Glucose Tolerance test is used for determining

(A) Blood Sugar

(B) Blood Pressure

(C) Obesity

(D) Heart Attack

 

98. Who has been considered as universal blood donor person?

(A) Person having O group blood

(B) Person having A group blood

(C) Person having B group blood

(D) Person having AB group blood

 

99. What is Li-Fi System?

(A) It is a traditional computer chip.

(B) It is a system relies on centralised light antennas.

(C) It is a universal turing machine.

(D) It is a single desktop computer.

 

100. Who designed the polaroid instant camera?

(A) Edwin Land

(B) William Clark

(C) Michael Brack

(D) Sir White

 

 

Miscellaneous Question Paper – 2012 (S-1)

2. Which of the following is a Vector quantity ?

(A) Mass     

(B) Temperature       

(C) Displacement     

(D) Time

 

9. Mammary glands are modification of

(A) Sweat gland      

(B) Sebaceous gland     

(C) Salivary gland      

(D) Lacrimal gland

 

10. An atom of an element differs from an atom of one of its isotopes in the number of

(A) Neutrons in the nucleus     

(B) Protons in the nucleus     

(C) Valence electrons    

(D) Protons outside the nucleus

 

12. Unit of Wave length is

(A) Cm     

(B) Pascal      

(C) Sec.      

(D)  Cm/Sec.

 

16. Which of the following acid can dissolve gold ?

(A) HNO3       

(B) H2SO4       

(C) H2SeO4 

(D) HClO4

 

24. Which of the following pairs is from the same group periodic table ?

(A) Mg, Ca     

(B) Mg, K     

(C) Mg, Cu     

(D) Mg, I

 

27. Monocot flowers and dicot flowers differ in

(A) Monocot flowers are larger than those of dicot      

(B) Monocot flowers possess no smell

(C) Monocot flowers possess no nectaries     

(D) Monocot flowers are not coloured

31. Ions are formed from neutral atoms by

(A) gain of electron      

(B) loss of electron      

(C) loss or gain of electron      

(D) sharing of electron

 

36. Tick out the odd combination

(A)  Cu, Ag, Au      

(B) Na, K, Rb     

(C) Zn, Cd, Hg       

(D) F, Si, I

 

38. Applying pulling force a string of rubber is increased by 40% and then force is withdrawn. What percentage of length is decreased to regain its original configuration?

(A) 40%     

(B) 34(1/7)%     

(C) 32(4/7)%      

(D) 28(4/7)%

 

39. ‘Vanishing colour’ may be prepared by mixing phenolphthalein with

(A) carbon dioxide water      

(B) sulphurous acid      

(C) dilute solution of caustic soda       

(D) dilute ammonia solution

 

44. Saturated hydrocarbons are termed paraffins because

(A)  they are much less reactive       

(B)  they are highly reactive  

(C) they are insoluble in water       

(D)  they are noncombustible

 

48. Water gas is a mixture of

(A) CO, CH4 and C2H2

(B) CO, CO2 and methane

(C) CO and H2

(D) CO and N2

 

53. Acid rains occur due to

(A) Presence of CO₂ in the atmosphere

(B) Presence of CO and CO₂ in the atmosphere

(C) Presence of Ozone in the atmosphere

(D) Presence of SO₂ and SO₃ in the atmosphere

59. Which of the following is most harmful for human being?

(A)  α-particles        

(B) β-particles         

(C) γ-rays       

(D) Light rays

 

64. Which one of the following insects is the carrier of microfilaria

(A) Tabanus        

(B) Culex mosquito      

(C) Anopheles mosquito      

(D) Aedes mosquito

 

68. Ascariasis spread through

(A) Polluted air      

(B) Polluted water        

(C) Contaminated food       

(D) Bacteria

 

73. For measuring the flow of current, the device is used

(A)  Voltmeter       

(B) Galvanometer      

(C) Ammeter       

(D) Potentiometer

 

74. Which of the following has no green house effect ?

(A) CH₄        

(B) N₂O      

(C) SO₂         

(D) H₂O

 

80. What is the unit of power ?

(A) Half-life        

(B) Watt       

(C) Volt       

(D) Joule

 

86. What is the unit of volume in CGS system ?

(A)  cm²         

(B) cm³         

(C)  km       

(D) m

 

95. Ductless glands secrete

(A) Blood        

(B) Tissue fluid       

(C) Enzymes        

(D) Hormones

 

99. The organ related to locomotion in Amoeba sp. is

 (A) Cilia       

(B) Flagella       

(C) Parapodia        

(D) Pseudopodia

 

 

Miscellaneous Question Paper – 2012 (S-2)

4. Light waves are

(A) Mechanical waves

(B) Longitudinal waves

(C) Electromagnetic waves

(D) None of the above

 

28. A temperature of 300°C corresponds to an absolute temperature in Kelvin unit of

(A) 27

(B) -27

(C) 523

(D) 573

 

31. Unit of frequency is

(A) Kg-m

(B) Sec

(C) Hertz

(D) Cm/sec2

 

38. Haemoglobin is

(A) a copper compound

(B) a cobalt compound

(C) a magnesium compound

(D) an iron compound

 

43. Pressure Cooker works on the principle

(A) Boiling point increases with the increase of pressure

(B) Boiling point decreases with the increase of pressure

(C) Boiling point increases with the decrease of pressure

(D) None of the above

 

46. Which of the following is a scalar quantity?

(A) Momentum

(B) Mass

(C) Weight

(D) Force

 

55. Enzymes are organic compounds of protein category which

(A) act as catalysts in life processes

(B) help in the mechanism of supply of oxygen in blood

(C) help to regulate the manner and rate of use of glucose in body

(D) help in heredity maintenance

56. The disease transmitted by blood

(A) Cholera

(B) Tuberculosis

(C) AIDS

(D) Polio

 

58. Soaps are

(A) sodium and potassium salts of higher fatty acids

(B) sodium salts of sulphonic acids

(C) high molecular mass alcohols

(D) mixtures of glycerol and phenol

 

63. Which of the following is an ore of aluminium?

(A) Haematite

(B) Dolomite

(C) Bauxite

(D) Carnalite

 

64. Night blindness is due to the lack of which vitamin?

(A) A

(B) B

(C) C

(D) K

 

66. How many times is chlorine gas heavier than air?

(A) 1.27

(B) 2.50

(C) 3.81

(D) 5.0

 

72. When chlorine reacts with excess of ammonia the products are

(A) NH4Cl, NCl3

(B) NH4Cl, N2

(C) NCl3, HCl

(D) N2, HCl

 

75. Which disease-causing germ is borne by Anopheles Mosquito?

(A) Dengue

(B) Encephalitis

(C) Malaria

(D) Filaria

76. Insulin is secreted from

(A) Kidney

(B) Pituitary gland

(C) Pancreas

(D) Thyroid

 

78. Where do you see stomata in lotus leaf?

(A) Only upper surface of leaf

(B) Only lower surface of leaf

(C) Both lower and upper surface of leaf

(D) None of the above

 

82. Which of the following radiations have the maximum penetrating power?

(A) α-rays

(B) β-rays

(C) y-rays

(D) Light rays

 

84. kilo-Watt-hour is the unit of

(A) Power

(B) Force

(C) Energy

(D) Momentum

 

97. Which of the following pairs is isoelectronic?

(A) N2, CO

(B) NO, CO

(C) CO, CN–

(D) O2, CN–

 

 

Miscellaneous Question Paper – 2011

6. ‘Touch me not’ plant shows

(A) Nyctinasty

(B) Photonasty

(C) Geonasty

(D) Seismonasty

 

9. The internal energy of a body means

(A) Its kinetic energy

(B) Total kinetic energy of its constituent molecules

(C) Sum total of its kinetic and potential energy

(D) Sum total of the kinetic and potential energy of its constituent molecules.

 

16. Four wires of different dimensions are stretched together under the equal weight, which on will suffer greater elongation? The dimensions are given below

(A) Length 100 cm, Diameter 1 mm

(B) Length 200 cm, Diameter 2 mm

(C) Length 300 cm, Diameter 3 mm

(D) Length 400 cm, Diameter 0.5 mm

 

17. The disease caused in hypo action of thyroid gland

(A) Myxedema

(B) Grave’s disease

(C) Exophthalmic goitre

(D) Goitre

 

20. The number of cranial nerves is (human being)

(A) 12 nerves

(B) 12 pairs of nerves

(C) 31 nerves

(D) 31 pairs of nerves

 

28. The hormone responsible for the production of seedless fruit 

(A) Gibberellin

(B) Auxin

(C) Ethylene

(D) Cytokinin

 

34. The enzymes present  in saliva

(A) Erepsin

(B) Chymotrypsin

(C) Ptyaline

(D) Trypsin

41. There are four statements given below explaining why mercury is chosen as a thermometric liquid. Which of these statements is wrong?      

(A) Mercury is a good conductor of heat

(B) Mercury does not stick to glass

(C) Mercury has a large specific heat

(D) Volume of mercury increases equally for equal rise of temperature

 

46. ​​The compound which contains both ionic and covalent bonds is

(A) CH4

(B) H2

(C) KCN

(D) NaCl

 

50. Who discovered the germ of Malaria?

(A) Lamarck

(B) G. J. Mendel

(C) De Vries

(D) Ronald Ross

 

57. The partial root parasite is      

(A) Bamboo plant

(B) Sandalwood plant

(C) Fungus

(D) Cycas

 

59. Which metal ion will give a chocolate precipitate with the reagent potassium ferrocyanide?         

(A) Fe3+

(B) Zn2+

(C) Cu2+

(D) Al3+

 

60. When a glass rod of refractive index µ2 is immersed in glycerin of refractive index µ1 it becomes invisible. The we can say    

(A) µ1<µ2

(B)  µ1>µ2

(C) µ1=µ2

(D) This phenomenon does not depend on refractive index.

 

65. Number of different oxides formed by nitrogen is

(A) Four

(B) Five

(C) Two

(D) Three

88. Two 220 V, 60 W bulbs are used for 5 hours a day for 10 days. If each unit (1 kilowatt hour) costs Rs. 3.50, find the total expense for it.

(A) Rs. 10.50

(B) Rs. 21.00

(C) Rs. 38.50

(D) Rs. 77.00

 

72. The element which form amphoteric oxide?

(A) Bismuth

(B) Antimony

(C) Phosphorus

(D) Sodium

 

78. An acid in concentrated form does not give brown fumes with copper turnings and when dilute gives a curdy white precipitate with silver nitrate solution and the precipitate is soluble in ammonia solution, but insoluble in nitric acid. The acid is

(A) Nitric acid

(B) Hydrochloric acid

(C) Sulphuric acid

(D) Phosphoric acid

 

90. One of these substances contains no oxygen. Which one?

(A) Bauxite

(B) Cryolite

(C) Dolomite

(D) Epsom salt

 

93. Which of the following is a dimensionless quantity?

(A) volume

(B) acceleration

(C) kinetic energy

(D) refractive index

 

94. Rectifying Spirit is a

(A) Mixture of 95% ethanol + 5% methanol

(B) Mixture of 95% ethanol + 5% water

(C) Mixture of 95% ethanol + 5% pyridine

(D) 100% ethanol

 

99. The single acid which dissolves gold is

(A) Nitric acid

(B) Hydrochloric acid

(C) Selenic acid

(D) Aqua regia

 

 

Miscellaneous Question Paper – 2010

14. (X)                      (Y)

(i) Urea                      (i) Ripening of fruits

(ii) Chloroform           (ii) Antiseptic

(iii) Phenol                 (iii) Anesthetic

(iv) Ethylene              (iv) Fertilizer

Find the correct match of the items of the columns (X) and (Y)

(A) (X) (i) (ii) (iii) (iv)

      (Y) (iii) (iv) (i) (ii)

(B) (X) (i) (ii) (iii) (iv)

      (Y) (iv) (iii) (ii) (i)

(C) (X) (i) (ii) (iii) (iv)

      (Y) (ii) (iv) (i) (iii)

(D) (X) (i) (ii) (iii) (iv)

       (Y) (i) (iv) (iii) (ii)

 

18. A train is approaching towards a station blowing whistle of frequency 1000Hz. What will be the apparent frequency of the sound of the whistle received by a listener standing on the railway platform?

(A) 1000 Hz

(B) greater than 1000 Hz

(C) lesser than 1000 Hz

(D) None of the above

 

19. Of the following which is a greenhouse gas?

(A) Methane

(B) Nitrogen

(C) Chlorine

(D) Acetylene

 

21. A hybrid pea plant was crossed to a dwarf pea plant. What will be the phenotypic ratio of tall: dwarf in the F1 plants?

(A) All trees plants

(B) Tall: dwarf, 1: 3

(C) Tall: dwarf, 3: 1

(D) Tall: dwarf, 2: 2

 

24. Cell wall is found in

(A) animal cells

(B) both plants and animal cells

(C) both plants and bacterial cells

(D) only in bacterial cells

 

26. In a detritus food-chain, insect larvae and nematodes act as

(A) secondary consumer

(B) detritus consumer

(C) producer

(D) tertiary consumer

 

27. “Inheritance of acquired character”, the evolutionary theory, was proposed by

(A) Darwin

(B) Lamarck

(C) Wallace

(D) Mendel

33. Pneumatophores are found in      

(A) nematodes

(B) mangrove plants

(C) nematocysts of jelly fish

(D) none of the above

 

37. Which tissue transports food produced by the banana leaves in plants?

(A) Xylem

(B) Phloem

(C) Root

(D) Trachea

 

53. A drop of phenolphthalein is added to a colourless liquid, but no change in colour takes place. The liquid, therefore, is

(A) basic

(B) acidic

(C) neutral

(D) acidic or neutral

 

55. Which of the following animals has an open circulatory system?

(A) Earthworm

(B) Snake

(C) Cockroach

(D) Rat

 

59. The distance traversed by a moving body is proportional to the square of the time taken to traverse. The acceleration in that condition is      

(A) increasing

(B) decreasing

(C) zero

(D) constant

 

60. Elements in group ‘0’ of the periodic table are called      

(A) alkali metal

(B) halogens

(C) chalcogens

(D) noble gases

 

66. A closed vessel filled with gas is moving horizontally with certain acceleration. What is the pressure of gas within the container (ignore force arising due to acceleration due to gravity)?

(A) Same everywhere

(B) Relatively lesser in the front plane

(C) Relatively lesser in the rear plane

(D) Relatively lesser in the top plane

72. A positively charged glass rod first attracts and then repels a suspended object. The suspended object is

(A) Negatively charged

(B) Positively charged

(C) Uncharged and insulated

(D) Earthed

 

73. Aluminium phosphate has the formula

(A) Al3(PO4)

(B) Al3(PO4)2

(C) Al(PO4)

(D) Al2(PO4)3

 

74. Ammonia can be dried with

(A) c. H2SO4

(B) fused CaCl2

(C) quicklime

(D) phosphorus pentoxide

 

78. The north pole of the magnetic needle is deflected towards east when current is passed through a wire placed above the magnetic needle which was kept free and static. What is the direction of flow of current in the wire?

(A) North to South

(B) South to North

(C) East to West

(D) West to East

 

85. Copper reduces 1:1 HNO3 to

(A) NO

(B) NO2

(C) N2O4

(D) N2O5

 

91. In which of the following cases there is a physical change?

(A) Magnesium wire is heated in Bunsen flame

(B) Platinum wire is heated in Bunsen flame

(C) Copper wire is heated in Bunsen flame

(D) Quicklime is dropped in water

 

92. The energy of a body thrown vertically upwards is

(A) greatest at the highest  point

(B) lowest at the highest  point

(C) same at all points

(D) greatest at any point