General Science

GC Fibres Polymers

Which is a thermosetting plastic?

  1. Melamine
  2. Polythene
  3. PVC
  4. Nylon

GC Fibres Polymers

Polycot is obtained by mixing

  1. nylon and wool
  2. polyester and wool
  3. nylon and cotton
  4. polyester and cotton

GC Fibres Polymers

Which of the following is a source of rayon?

  1. Wool
  2. PET
  3. Wood pulp
  4. Silk

GB Health

The disease caused by a protozoan and spread by an insect is

  1. dengue
  2. malaria
  3. polio
  4. measles

GB Living Organisms

The two micro-organisms which live in symbiotic association in lichens are

  1. fungus and protozoa
  2. alga and bacteria
  3. bacteria and protozoa
  4. alga and fungus

GB Health

A disease in human beings caused by virus is

  1. typhoid
  2. influenza
  3. dysentry
  4. cholera

GB Living Organisms

Which of the following reproduces only inside a host cell?

  1. Bacteria
  2. Virus
  3. Amoeba
  4. Fungus

GS Environment

The branchy part of a tree above the stem is known as

  1. crown
  2. canopy
  3. sapling
  4. humus

GS Water

The amount of water recommended by the United Nations for drinking, washing, cooking and maintaining proper hygiene per person per day is a minimum of

  1. 5 litres
  2. 15 litres
  3. 30 litres
  4. 50 litres

GS Water

On which of the following day is World Water Day observed?

  1. 22 March
  2. 14 November
  3. 2 October
  4. 21 December

GP Light

An erect and enlarged image can be formed by

  1. only a convex mirror
  2. only a concave mirror
  3. only a plane mirror
  4. both convex and concave mirrors

GP Light

If an object is placed at a distance of 0.5 m in front of a plane mirror, the distance between the object and the image formed by the mirror will be

  1. 2 m
  2. 1 m
  3. 0.5 m
  4. 0.25 m

GP Light

Which of the following can be used to form a real image?

  1. Concave mirror only
  2. Plane mirror only
  3. Convex mirror only
  4. Both concave and convex mirrors

GP Motion Force

A bus travels 54 km in 90 minutes. The speed of the bus is

  1. 0.6 m/s
  2. 10 m/s
  3. 5.4 m/s
  4. 3.6 m/s

GB Reproduction Heredity

Pollination refers to the

  1. transfer of pollen from anther to ovary
  2. transfer of male gametes from anther to stigma
  3. transfer of pollen from anther to stigma
  4. transfer of pollen from anther to ovule

GB Reproduction Heredity

The eye of the potato plant is what

  1. the root is to any plant
  2. the bud is to a flower
  3. the bud is to Bryophyllum leaf
  4. the anther is to stamen

GB Reproduction Heredity

Seeds of drumstick and maple are carried to long distances by wind because they possess

  1. winged seeds
  2. large and hairy seeds
  3. long and ridged fruits
  4. spiny seeds

GB Reproduction Heredity

Which of the following parts of a plant take part in sexual reproduction?

  1. Flower
  2. Seed
  3. Fruit
  4. Branch

Choose the correct answer from below.

  1. (i) and (ii)
  2. (i), (ii) and (iii)
  3. (iii) and (iv)
  4. (ii), (iii) and (iv)

GB Life Processes

Aquatic animals like fish excrete their wastes in gaseous form as

  1. Oxygen
  2. Hydrogen
  3. Ammonia
  4. Nitrogen

GB Life Processes

In which of the following parts of human body are sweat glands absent?

  1. Scalp
  2. Armpits
  3. Lips
  4. Palms

GB Life Processes

The absorption of nutrients and exchange of respiratory gases between blood and tissues takes place in

  1. veins
  2. arteries
  3. heart
  4. capillaries

GB Life Processes

During the process of exhalation, the ribs move

  1. down and inwards
  2. up and inwards
  3. down and outwards
  4. up and outward

GB Life Processes

Yeast is used in wine and beer industries because it respires

  1. aerobically producing oxygen
  2. aerobically producing alcohol
  3. anaerobically producing alcohol
  4. anaerobically producing CO2

GS Environment

The coldest region on earth is the

  1. polar region
  2. tropical region
  3. temperate region
  4. coastal region

GC Metals Non-Metals

Galvanisation is a process used to prevent the rusting of which of the following?

  1. Iron
  2. Zinc
  3. Aluminium
  4. Copper

GC Acids Bases Salts

Which of the following set of substances contain acids?

  1. Grapes, lime water
  2. Vinegar, soap
  3. Curd, milk of magnesia
  4. Curd, vinegar

GC Acids Bases Salts

Litmus, a natural dye is an extract of which of the following?

  1. China rose (Gudhal)
  2. Beetroot
  3. Lichen
  4. Blue berries (Jamun

GC Acids Bases Salts

When the soil is too basic, plants do not grow well in it. To improve its quality what must be added to the soil?

  1. Organic matter
  2. Quick lime
  3. Slaked lime
  4. Calamine solution

GC Acids Bases Salts

Phenolphthalein is a synthetic indicator and its colours in acidic and basic solutions, respectively are

  1. red and blue.
  2. blue and red.
  3. pink and colourless.
  4. colourless and pink.

GC Acids Bases Salts

Turmeric is a natural indicator. On adding its paste to acid and base separately, which colours would be observed

  1. Yellow in both acid and base.
  2. Yellow in acid and red in base.
  3. Pink in acid and yellow in base.
  4. Red in acid and blue in base.

GC Acids Bases Salts

Products of a neutralisation reaction are always

  1. an acid and a base.
  2. an acid and a salt.
  3. a salt and water.
  4. a salt and a base.

GP Heat

A marble tile would feel cold as compared to a wooden tile on a winter morning, because the marble tile

  1. is a better conductor of heat than the wooden tile.
  2. is polished while wooden tile is not polished.
  3. reflects more heat than wooden tile.
  4. is a poor conductor of heat than the wooden tile.

GC Fibres Polymers

Reeling of silk is

  1. a process of making silk reels.
  2. spinning of silk fibres.
  3. weaving of silk cloth.
  4. the process of taking silk threads from cocoon.

GC Fibres Polymers

Silkworms secrete fibre made of

  1. fat
  2. cellulose
  3. protein
  4. nylon

GC Fibres Polymers

Selective breeding is a process of

  1. selecting the offsprings with desired properties.
  2. selecting the parents with desired properties.
  3. selecting an area for breeding.
  4. selecting fine hair for good quality wool.

GC Fibres Polymers

Wool fibre cannot be obtained from which of the following?

  1. Goat
  2. Llama
  3. Alpaca
  4. Moth

GC Fibres Polymers

Silk fibre is obtained from

  1. fleece of sheep
  2. cotton ball
  3. cocoon
  4. shiny jute stalk

GC Fibres Polymers

Which of the following is not a type of silk?

  1. Mulberry silk
  2. Tassar silk
  3. Mooga silk
  4. Moth silk

GC Fibres Polymers

The rearing of silkworms for obtaining silk is called

  1. cocoon
  2. silk
  3. sericulture
  4. silviculture

GB Food Nutrition

Cud is the name given to the food of ruminants which is

  1. swallowed and undigested.
  2. swallowed and partially digested.
  3. properly chewed and partially digested.
  4. properly chewed and completely digested.

GB Life Processes

The enzymes present in the saliva convert

  1. fats into fatty acids and glycerol.
  2. starch into simple sugars.
  3. proteins into amino acids.
  4. complex sugars into simple sugars.

GB Food Nutrition

The false feet of Amoeba are used for

  1. movement only.
  2. capture of food only.
  3. capture of food and movement.
  4. exchange of gases only.

GB Life Processes

The acid present in the stomach

  1. kills the harmful bacteria that may enter along with the food.
  2. protects the stomach lining from harmful substances.
  3. digests starch into simpler sugars.
  4. makes the medium alkaline.

GB Life Processes

The swallowed food moves downwards in the alimentary canal because of

  1. force provided by the muscular tongue.
  2. the flow of water taken with the food.
  3. gravitational pull.
  4. the contraction of muscles in the wall of food pipe.

GB Food Nutrition

Pitcher plant traps insects because it

  1. is a heterotroph.
  2. grows in soils which lack in nitrogen.
  3. does not have chlorophyll.
  4. has a digestive system like human beings.

GB Food Nutrition

In the absence of which of the following will photosynthesis not occur in leaves?

  1. Guard cells
  2. Chlorophyll
  3. Vacuole
  4. Space between cells

GB Food Nutrition

Organisms which prepare food for themselves using simple naturally available raw materials are referred to as

  1. heterotrophs
  2. autotrophs
  3. parasites
  4. saprophytes

GS Environment

The method of preparing compost with the help of earthworms is called

  1. composting
  2. vermicomposting
  3. manuring
  4. decomposing

GS Air

Which of the following components of air is present in the largest amount in the atmosphere?

  1. Nitrogen
  2. Oxygen
  3. Water vapour
  4. Carbon dioxide

GS Air

Mountaineers carry oxygen cylinders with them because

  1. there is no oxygen on high mountains.
  2. there is deficiency of oxygen on mountains at high altitude.
  3. oxygen is used for cooking.
  4. oxygen keeps them warm at low temperature.