●
Old-written material, which cannot be read easily, how can be read?
Answer :- By infrared rays,
● Which synthetic fibre is known as artificial silk?
Answer :- Rayon,
● Which vegetable protein is considered as good as an animal protein?
Answer :- Soyabean protein,
● mho is the unit of which unit?
Answer :- Specific resistance,
● Which are the important raw materials required in cement industry?
Answer :- Limestone and clay,
● By which would Desert plants be characterised?
Answer :- By sunken stomata,
● What is the number of basic units in the International System of Units?
Answer :- 7,
● Which are the high-temperature superconductors?
Answer :- Ceramic oxides,
● Which is the sweetest sugar?
Answer :- Fructose,
● A small weight is put on the pressure cooker.It increases the pressure of the
steam. Why?
Answer :- Area of contact is small,
● Which is the highest grade of coal whose surface is shining and has the
highest calorific value?
Answer :- Anthracite,
● In certain amino acids, which elements is found in addition to carbon,
hydrogen, nitrogen and oxygen?
Answer :- Sulphur,
● A car is running on a road at a uniform speed of 60 km/hr.What is the net resultant
force on the car?
Answer :- Equal to zero,
● Which substance coated on plastic tape?
Answer :- Iron oxide,
● Which combination of foods providing protein quality nearest to that of meat?
Answer :- Sprouted gram and groundnuts,
● Which common devices works on the basis of the principle of mutual induction?
Answer :- Transformer,
● Which charcoal is used to deeolourise raw sugar?
Answer :- Wood charcoal,
● Milk cheese and eggs are the source of vitamins which vitamins?
Answer :- A and D,
● Which is the wave in which the particies of the material move up and down as
the wave goes from left to right?
Answer :- Transverse,
● According to Dalton’s atomic theory, which is the smallest particle which can
exist independently?
Answer :- An atom,
● What is the source of immediate energy for cellular activity?
Answer :- ATP,
● Which is most efficient engine?
Answer :- Electric,
● By whom was Gene first isolated?
Answer :- Hargobind Khurana,
● When milk is churned, how does the cream separate from it?
Answer :- Due to the centrifugal force,
● For which thing is Washing soda the common name?
Answer :- Sodium carbonate,
● From the biological evolutionary point of view, the human heart is close to
the heart of which animal?
Answer :- Pig,
● By which impact is Nuclear fission is caused?
Answer :- Neutron,
● What is the most abundant metal in the earth’s crust?
Answer :- Aluminium,
● In which organ of the human body are the lymphocyte cells formed?
Answer :- Spleen,
● What is the wavelength of visible spectrum?
Answer :- 3900-7600 A,
● Which is used in beauty parlours for hair setting?
Answer :- Sulphur,
● In which Photosynthesis occurs?
Answer :- Chloroplast,
● What is the function of heavy water in a nuclear reactor?
Answer :- Slow down the speed of neutrons,
● Which pair does not contain a coinage metal?
Answer :- Zinc and Gold,
● What is the short upper part of the human intestine next to the stomach?
Answer :- Duodenum,
● By whom was Electron first identified?
Answer :- J. J. Thomson,
● The filament of an electric bulb is made of which metal?
Answer :- Tungsten,
● Who laid the foundation of nuclear science in the country?
Answer :- Homi J. Bhabha,
● Galvanised iron sheets have a coating of which metal?
Answer :- Zinc,
● Healing of wounds is hastened by which vitamin?
Answer :- C,
● What does Hydrogen fuel cell vehicles produce as exhaust?
Answer :- H2O,
● Glass is made of the mixture of which things?
Answer :- Sand and silicates,
● Which element is essentials for the transmission of impulses in the nerve
fibre?
Answer :- Calcium,
● What is the best conductor of electricity?
Answer :- Salt water,
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