1.Diamond is an allotropic form of-
(a) silicon (b) carbon
(c) sulphur (d) germinium
2.Tetraethyl lead is used as-
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(a) mosquito repellent (b) pain killer
(c) fire extinguisher (d) petrol additive
3. Chemical formula for water glass is-
(a) Na2Si03 (b) A1203
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(c) NaA102 (d) CaSi03
4.Marsh gas 3s-
(a) hydrogen (b) nitrogen
(c) methane (d) ethane
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5. Which of the following is used as moderator in nuclear reactor ?
(a) Ordinary water (b) Radium
(c) Thorium (d) Graphite
6.Which of the following is the most penetrating ?
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(a) a-rays (b) 0-rays
(c) y-rays (d) X-rays
7. Which nutrients are most likely to be affected by food processing and storage ?
(a) Carbohydrates (b) Fats
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(c) Proteins (d) Vitamins
8.Isotopes are separated by-
(a) filteration(b) sublimation
(c) distillation (d) crystallisation
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9.Optic fibres are mainly used for which of the following ?
(a) communication (b) weaving
(c) musical instruments (d) food industry
10.In vulcanisation natural rubber Is heated with-
(a) Carbon (b) Sulpher
(c) Silicon (d) Phosphorous
11. Soap is a mixture of Sodium or Potassium salts of-
(a) monocarboxylic acids (b) glycerols
(c) dicarboxylic acids (d) tricarboxylic acids
12.Which of the following is a physical change ?
(a) Oxidation (b) Reduction
(c) Sublimation (d) Decomposition
13.The rate of chemical reaction does not depend upon-
(a) Concentration (b) Catalyst
(c) Temperature (d) Pressure
14. Rayon is chemically-
(a) glucose (b) amylase
(c) cellulose (d) pectin
15. Which one of the following is the petroleum wax ?
(b) Carnauba wax (d) Jojoba wax
(C) Decibel (D) Hertz
16. What is the unit for measuring the pitch or frequency of sound ?
(a) Coulomb (b) Cycle
(c) Decibel (d) Hertz
17. One fathom is equal to-
(a) 6 metres (b) 6 feet
(c) 60 feet (d) 100 cms.
18. Which of the following best explains the phenomenon “Simple Harmonic Motion” ?
(a) Cylinder (b) Disc
(c) Pendulum (d) None of these
19. The mixed oxide fuel is used for which of the following ?
(a) Nuclear Reactors (b) Aeroplanes .
(c) Cryogenic Engines (d) PSLV Rockets
20.The anode in a dry cell consists of-
(a) Graphite (b) Zinc
(c) Copper (d) Cadmium
21. Floppy disc in a computer is-
(a) compiler (b) core memory
(c) software (d) device for storing and retrieving data
22.In an electronic watch, the component corresponding to the pendulum of a pendulum clock is-
(a) Transistor (b) Balance wheel
(c) Crystal oscillator (d) Diode
23. The most efficient engine is-
(a) Petrol (b) Diesel
(c) Electric (d) Steam
24. The coversion of electric energy into chemical energy is observed in-
(a) fan (b) storage battery
(c) heater (d) incandescent light
25. Which of the following works on Bernoulli’s principle ?
(a) Gas lighter (b) Gas stove
(c) Bunsen burner (d) None of these
26.Hardware is related to-
(a) calculator (b) computer
(c) acid (d) heavy metal
27.AC cannot be used in-
(a) Amplifier (b) Transformer
(c) Voltmeter (d) Galvanometer
28.One micron is equal to-
29.A chronometers measures-
(a) sound waves (b)
(c) water-waves (d)
30. Very small time intervals are accurately measured by the-
(a) Pulsars (b) Quartz clocks
(c) Atomic clocks (d) White dwarfs
31.Which of the following is essential for blood clotting
(a) RBC (b) WBC
(c) Blood Platelets (d) Lymph
32.The tooth with three roots is-
(a) Molar (b) Pre-molar
(c) Incisor (d) Canine
33. Which of the following is a membrane that protects the developing embrio from desiccation?
(a) Amnion (b) Allantois
(c) Chorion (d) yolk
34. Reflex action is a function of-
(a) Cerebellum (b) Spinal cord
(c) Medulla (d) Autonomous nervous system
35. Which of the following is not a gland ?
(a) Stomach (b) Liver
(c) Kidney (d) Pancreas
36.Which of the following combinations of chromosomes is present in males ?
(a) XX (b) XXX
(c) XY(d) XYX
37. How much blood does an average adult have in the body.
(a) 3-4 litres (b) 4-5 litres
(c) 5-6 litres (d) 6-7 litre
40. The weight of an average human male brain is about-
(a) 1 kg (b) 1200 gms
(c) 1350 gms (d) 1500 gms
41. Element that is not found in blood is-
(a) iron (b) copper
(c) chromium (d) magnesium
42. Which of the following is not a bone in the legs of human body ?
(a) Radius (b) Tibia
(c) Femur (d) Fibula
43. The hormone responsible for the secretion of milk in mothers is-
(a) ACTH (b) Leutinizing
(c) Adrenalin (d) Lactogenic harmone
44. Food is mainly digested in- (a) liver (b) large intestine
(c) small intestine (d) mouth
45. The number of ribs in human body is-
(a) 12 (b) 18
(c) 20 (d) 24
46. Oxygen is transported to every cell of the human body by-
(a) red blood cells (b) blood platelets
(c) white blood cells (d) hormones
47. What is funny bone ?
(a) A muscle (b) A nerve
(c) A bone (d) A blood vessel
48. Haemoglobin is dissolved in the plasma of-
(a) man (b) fish
(c) frog (d) earthworm
49. Hormones are generally absent in-
(a) rat (b) monkey
(c) bacteria (d) cat
50. The stable plant dye is- body ?
(a) anthocyanin (b) phenol
(c) indigo (d) flavanole
ANSWERS
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I.(b)2.(d)3.(a)4.(c)5.(d)6.(c)7.(b)8.(c)9.(a)10.(b) |
11.(d)12.(c)13.(d)14.(c)15.(c)16.(c)17.(b)18.(c) |
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19.(c)20.(a)21.(d)22.(c)23.(c)24.(b)25.(c)26.(b) |
27.(d)28.(c)29.(b)30.(c)31.(c)32.(a)33.(a)34.(d) |
35.(c)36.(c)37.(d)38.(c)39.(c)40.(c)41.(c)42.(a) |
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43.(d)44.(c)45.(d)46.(a)47.(b)48.(d)49. (c)50.(c) |