General Science

1) Ampere is the unit of

a)  Current electricity

b) Nagnetic Field

c) Electric Charte

d) Resistance

2) Bile is secreted by

a) Liver

b) Pancreas

c) Kidney

d) Stomach

3) Which of the following is the hardest metal?

a) Gold

b) Iron

c) Platinum

d) Tungsten

4) Bakeries use yeast in bread making because it:

a) Makes the bread hard

b) Makes the bread soft and spongy

c) Enhances the food values

d) Keeps the bread fresh

5) The chemical name of laughing gas is:

a) Nitric oxide

b) Nitrogen dioxide

c) Nitrogen pentoxide

d) Nitrous oxide

6) Brass is an alloy of:

a) Lead and tin

b) Zink and copper

c) Antimony, tin and lead

d) Zink, tin and copper

7) The length of its day and tilt of its axis are almost identical to those of the earth. This is true of:

a) Uranus

b) Neptune

c) Saturn

d) Mars

8) The Milky Way is classified as:

a) Spiral Galaxy

b) Electrical Galaxy

c) Irregular Galaxy

d) Round Galaxy

9) The energy of the sun is produced by:

a) Ionization

b) Nuclear fusion

c) Nuclear fission

d) Oxidation

10) Which one of the following is not correctly matched?

a) Decibel - Unit of the loudness of sound

b) Horse power - unit of power

c) Nautical mile - unit of distance in navigation

d) Celsius - unit of heat

11) The common name of Sodium Bicarbonate is:

a) Baking soda

b) Washing soda

c) Caustic soda

d) Soda lime

12) Which variety of glass is heat resistant?

a) Flight glass

b) Hard glass

c) Bottle glass

d) Pyrex glass

13) Which of the following is a source of ready energy that one athlete can use after strenuous exercises?

a) Milk

b) Glucose

c) Sucrose

d) Tomato soup

14) The renewable source of energy:

a) Petroleum

b) Kerosene

c) Coal

d) Tree

15) The filament of on electric bulb is made of:

a) Copper

b) Soft iron

c) Cast iron

d) Tungsten

16) The natural wax and lac are obtained as:

a) Petroleum products

b) Resins of forest plants

c) By products of sugar industry

d) Insect secretions

17) Which hormone is known as ‘fight or flight’ hormone?

a) Insulin

b) Adrenaline

c) Estrogen

d) Oxytocin

18) Pacemaker is associated with:

a) Kidney

b) Brain

c) Heart

d) Lungs

19) The velocity of sound is more in:

a) Water

b) Air

c) Steel

d) Wood

20) Which planet orbits closest to the earth?

a) Mars

b) Jupiter

c) Venus

d) Mercury

21) It causes clotting of blood:

a) Thrombin

b) Haemoglobin

c) Pectin

d) All of the above

22) Hardness of water is caused soluble salts of:

a) Sodium and potassium

b) Potassium and ammonium

c) Sodium and calcium

d) Calcium and magnesium

23) The purification of a substance which evaporates without melting can be carried out by:

a) Crystallisation

b) Distillation

c) Steam distillation

d) Sublimation

24) Which of the following is the largest part of the human brain?

a) Cerebellum

b) Midbrain

c) Cerebrum

d) Medulla Oblongata

25) The total number of ear bones are:

a) 2

b) 4

c) 6

d) 8

26) An element in the form of gaseous atoms is converted into negative ions is called?

a) Bond energy

b) Electron affinity

c) Electro negativity

d) Ionization energy

27) Diamond is a form of:

a) Carbon

b) Nitrogen

c) Oxygen

d) Hydrogen

28) The method used to obtain alcohol from molasses is called:

a) Distillation

b) Hydrolysis

c) Fermentation

d) Oxidation

29) Which of the following is the least inflammable fabric?

a) Cotton

b) Nylon

c) Rayon

d) Silk

30) Which of the following is required to build new tissues in the human body?

a) Carbohydrates

b) Fat

c) Protein

d) Water

31) The Vitamin which is required for proper clotting of blood in human body is:

a) Vitamin E

b) Vitamin A

c) Vitamin B12

d) Vitamin K

32) Electron was discovered by:

a) Ernest Rutherford

b) Max Planck

c) Joseph Thomson

d) Albert Einstein

33) The number of amino acids which are found in nature is:

a) 20

b) 10

c) 15

d) 105

34) Bacteria were first seen, described and sketched by:

a) Jenner

b) Linnaeus

c) Pasteur

d) Leeuwenhock

35) The outstanding discovery of J.C Bose, the Indian Scientist, is:

a) Crescograph

b) Boson

c) Cosmic rays

d) Ionograph

36) Density of a metal when it is heated:

a) Remains the same

b) Increases

c) Decreases

d) Melts

37) Which of the following elements has been known to man from prehistoric times?

a) Sulphur

b) Uranium

c) Platinum

d) Arsenic

38) Our Solar system is a small unit of:

a) Milky way galaxy

b) Crab nebula galaxy

c) An independent galaxy

d) None of the above

39) Nights are cooler in the desert because:

a) The sky is generally clear

b) The sky is generally cloudy

c) Sand radiates heat less quickly as compared to earth

d) Sand radiates heat more quickly as compared to earth

40) Storage batteries commonly contain:

a) Copper

b) Mercury

c) Lead

d) Iron

41) Which of the following is a polymer?

a) Vinyl chloride

b) Urea

c) Starch

d) Styrene

42) What is common between a whale and a monkey?

a) Both have on external ear

b) Both have a long balancing tail

c) Both have body hairs throughout life

d) Both give birth to young ones

43) The hormone which regulates the basal metabolism in our body is secreted from:

a) Pituitary

b) Thyroid

c) Adrenal cortex

d) Pancreas

44) The acid used in car battery is:

a) Hydrochloric acid

b) Boric acid

c) Sulphuric acid

d) Carbonic acid

45) The boiling point of water is unaffected by:

a) The external pressure

b) The temperature of heat source

c) The kind of dissolved substances

d) The amount of dissolved substances

46) What is the velocity of sound in the air?

a) 330 cms per sec

b) 330 meters per sec

c) 760 meters per sec

d) 1120 cms per sec

47) The gas used in discharged tubes for optical decoration and advertising is:

a) Carbon dioxide

b) Ammonia

c) Sulphur dioxide

d) Neon

48) The substance present at the centre of the sun are in:

a) Solid, liquid and gaseous states

b) Liquid state only

c) Gaseous state only

d) Both liquid and gaseous states

49) Blank capsules used in dispensing are made of:

a) Egg-white

b) Gum

c) Starch

d) Gelatin

50) Which one of the following is not an explosive?

a) Trinitrotoluene

b) Trinitroglycerine

c) Cyclotrimethylene trinitramine

d) Nitrochloroform

51) An ordinary clock loses time in summer, this is because

a) The length of the pendulum increases and time period decreases

b) The length of the pendulum increases and time period increases

c) The length of the pendulum decreases and time period increases

d) The length of the pendulum decreases and time period decreases

52) When ice cubes floating in a beaker of water melt, the level of water in the beaker:

a) Goes up

b) Goes down

c) Remains same

d) Fall or rise depending on the number of ice cubes present in the beaker

53) Which of the following is an element?

a) Silica

b) Magnesia

c) Glass

d) Graphite

Note: Silica/Silicon Dioxide/ Quartz/ SiO2

Magnesia / Magnesium Oxide/ MgO

54) A characteristic gas smells near the unclear public urinals. Which is this gas?

a) Ammonia

b) Chlorine

c) Sulphur dioxide

d) Carbon monoxide

Note: I am confuse which is Answer

55) Kilowatt is a unit to measure:

a) Power

b) Work

c) Energy

d) Current

56) The apparent weight of a man in a lift will be less than his real weight:

a) When the lift is stationary

b) At no time

c) When the lift is going up with uniform acceleration

d) When the lift is going down with uniform acceleration

57) A natural sweetening agent obtained from a plant (but not sugar) is

a) Saccharin

b) Santonine

c) Cyclamates

d) None of these

58) Alkaloids are by products of the metabolism of:

a) Animals

b) Bacteria

c) Plants

d) Viruses

59) Atom bomb is based on:

a) Artificial radioactivity

b) Nuclear fission

c) Nuclear fusion

d) Chemical reaction

60) Which gas in the atmosphere absorbs ultraviolet rays?

a) Methane

b) Nitrogen

c) Ozone

d) Helium

61) Which of the following is essential for the plants to help them in the formation of chlorophyll?

a) Potassium

b) Magnesium

c) Calcium

d) Phosphorus

62) The material used for bleaching paper pulp is:

a) Lime

b) Alum

c) Caustic soda

d) Sodium hypochlorite

63) Which of the following is used as a preservative of food articles?

a) Sodium bicarbonate

b) Sodium benzoate

c) Sodium carbonate

d) Sodium chloride

Note: Sodium Benzoate (NaC7H5O2) is used food preservative with E number E211

64) Milk in natural form has a certain amount of sugar. This sugar is called:

a) Fructose

b) Glucose

c) Sucrose

d) Lactose

65) Blood is classified biochemically as a:

a) Cell

b) Liquid

c) Tissue

d) Cartilage

66) Foxglove plant yields a drug which is a stimulants to:

a) Kidney

b) Brain

c) Lungs

d) Heart

67) The function of a catalyst in a reaction is to:

a) Decrease the rate of reaction

b) Increase the rate of reaction

c) Increase the pressure of reactants

d) Decrease the pressure of reactants

68) Which of the following gases is used for refrigeration?

a) Sulphur dioxide

b) Chlorine

c) Freon

d) Phosphine

69) Which plant stores food in the stem?

a) Ginger

b) Carrot

c) Raddish

d) Groundnut

70) When a ship enters a sea from a river, its level:

a) Remains same

b) Falls

c) Rises

d) Rises or fall depending on the condition and material of the ship

71) The sky is blue in color because of:

a) Combination of various lights producing blue color

b) The moisture present in the air

c) The accumulation of smoke in the sky

d) The scattering of light by dust particle or air molecules

72) If a body is taken from the earth to the moon:

a) Its mass will not be affected

b) Its mass will decrease

c) Its weight will become more

d) Both its mass and weight will decrease

73) An iron nail floats on mercury but skins in water because:

a) Mercury is a metal and water is not

b) Upper layer of mercury is strong

c) Mercury is a liquid metal and iron is a soild metal

d) Iron is less dense than mercury

74) An electric bulb produces a loud sound when broken, because:

a) The glass is brittle

b) The gas inside the bulb suddenly expands

c) The gas makes the explosion

d) The air rushes into the partial vaccum in the bulb

75) A person climbing a hill bends forward so as to:

a) Reduce chances of slipping

b) Increase his stability

c) Increase his stamina

d) Move faster

76) The freezer in a refrigerator is fitted near the top:

a) Without any specific and particular purpose

b) Because it is convenient

c) So that it can cool the whole interior by setting up convection current

d) To keep it away from the hot compressor

77) The cover of a solar cooker is made of a glass:

a) Because glass allows heat radiation from the sun into the container but not out of it

b) To enable us to see the food cooking

c) Because heat is radiated without absorption by glass

d) As glass is a good conductor of heat and cheap

78) Chlorine is a/an:

a) Halogen

b) Alloy

c) Metal

d) Noble gas

79) Which of the following is not alloy?

a) Brass

b) Bronze

c) Steel

d) Zink

Note: Steel is alloy of iron and carbon

Brass is copper and zinc

Bronze is an alloy consisting primary of copper. The addition of other metals (Usually tin, sometimes arsenic)

80) Which of the following is an insecticide?

a) TNT

b) DDT

c) Urea

d) Alcohol

81) IC chips for computers are usually made of?

a) Chromium

b) Lead

c) Silicon

d) Gold

82) Which of the following is used as dry ice?

a) Carbon dioxide

b) Ammonia

c) Oxygen

d) Ice with raw dust

83) The normal unit of measurement of distance of a star is:

a) Kilometer

b) Light year

c) Nautical mile

d) Knot

84) Solution of washing soda in water will be:

a) Alkaline

b) Acidic

c) Neutral

d) None of these

Note: Washing soda is a highly alkaline chemical compound that can be used from laundry

85) Vitamin C is also called:

a) Ascorbic acid

b) Nucleic acid

c) Lactic acid

d) Hydrochloric acid

86) Pearls are found in

a) Turtles

b) Snails

c) Tortoises

d) Oysters

87) Coal burns in air because air contains:

a) Hydrogen

b) Oxygen

c) Nitrogen

d) Carbon dioxide

88) A substance which glows and is used in watch dials is:

a) Sodium

b) Sulphur

c) Phosphorus

d) Chlorine

89) Which of the following chemical is used by photographers?

a) Sodium sulphide

b) Silver bromide

c) Potassium cyanide

d) Ivory powder

90) The process of coating iron with zink is known as:

a) Vulcanization

b) Electroplating

c) Polishing

d) Galvanizing

Note: galvanization is the process of applying a Protective zinc coating to steel or iron to prevent rusting. The most common method is hot dip galvanization

91) The best source of iron is:

a) Milk

b) Egg

c) Cauliflower

d) Green vegetables

92) Vitamins are useful to the body for:

a) Replacing the energy lost

b) The body growth

c) Regulating the functions of the body

d) Maintaining the body temperature

93) The metals used for the manufacture of stainless steel are:

a) Chromium and carbon

b) Aluminum and carbon

c) Copper and nickel

d) Chromium and zinc

94) In refrigerator, the refrigerant liquid is:

a) Carbon dioxide

b) Nitrogen

c) Liquid helium

d) Ammonia

95) Which of the following is the least inflammable fabric?

a) Cotton

b) Nylon

c) Rayon

d) Silk

96) Which of the following contains carbon?

a) Chromite

b) Bauxite

c) Lignite

d) Phosphorite

97) Which of the following blood groups is the universal donor?

a) A

b) B

c) AB

d) O

98) Which of the following fight infections in the body?

a) WBCs

b) RBCs

c) Blood plasma

d) Haemoglobin

99) The term ‘refraction of light’ means:

a) Bending of light rays when they enter from one medium to another medium

b) Splitting of white light into seven colors when it passes through the prism

c) Bending of light round the corners of obstacles and apertures

d) Coming back of light from a bright smooth surface

100) In the visible spectrum, the color having the shortest wavelength is;

a) Green

b) Red

c) Violet

d) Blue

101) What is used to disintegrate bladder stones?

a) Infrared

b) Ultraviolet rays

c) X-rays

d) Ultrasonic’s

102) Mica is used in an electric iron, because it is a :

a) Bad conductor of heat

b) Good conductor of heat

c) Good conductor of electricity

d) Bad conductor of electricity

103) A line on a map joining places having equal atmospheric pressure is called?

a) Isotherm

b) Isobar

c) Isocryme

d) Isohaline

104) On additional of salt to water, its:

a) Boiling point increases

b) Boiling point decreases

c) Boiling point is not affected

d) Freezing point increases

105) If the velocity of a particle is reduced to half of its initial value, then the kinetic energy of the particle will:

a) Get double

b) Become four times

c) Reduce to half its original value

d) Reduce to one-fourth of its original value

106) A lunar eclipse occurs when

a) Sun, Moon, and Earth are not in the same line

b) Earth comes between the Sun and the Moon

c) Moon comes between the Sun and Earth

d) Sun comes between the Earth and the Moon

107) Red light is used in traffic signal because

a) It has the longest wavelength

b) It is beautiful

c) It is visible to people even with bad eyesight

d) None of these

108) The oil in the wick of a lamp rises up due to:

a) Pressure difference

b) Low viscosity of oil

c) Capillary action

d) Gravitational force

109) A thick glass tumbler cracks more easily than a thin one when hot water is poured into it. Why?

a) Thick glass is more brittle than thin glass

b) Thick glass is of inferior quality

c) The inner surface of the tumbler expands more than its outer surface

d) The inner surface of the tumbler expands more than its inner surface

110) How many cells are there in the hen’s egg?

a) 1

b) 10

c) 100

d)1000

111) The mirror placed near the driver of a bus is:

a) Plane mirror

b) Convex mirror

c) Concave mirror

d) Cooling mirror

112) Beri-Beri is a disease, caused by the deficiency of:

a) Vitamin B

b) Vitamin C

c) Vitamin K

d) Protein

113) Heliotropism is:

a) Harmful effects of helium

b) Helicopter flight control

c) Medicine used to cure heart diseases

d) Movement of plant organs towards sunlight

114) The isotope of uranium which is very much radioactive is:

a) U 235

b) U238

c) U233

d) All of the above

115) The human skull consists of:

a) 8 bones

b) 14 bones

c) 21 bones

d) 42 bones