Science and technology quiz questions and answers pdf

geography-india-and-the-world-questions-with-answers

A person, who can see the near objects clearly but cannot see far objects clearly, is a patient of
—Myopia

Which kinds of lens are used as a remedy for myopia ?
—Diverging lens

What is used to detect the presence of kinetic energy of radioactive particles ?
—Cloud Chamber

A solution having pH equal to zero is known as
—Highly acidic solution

What is the pH value of pure water ?
—7·0

Which acid is produced in human stomach for digestion purpose ?
—Hydrochloric acid

Water gas is a mixture of carbon monoxide and
—Hydrogen

The largest gland of the human body after liver is
—Pancreas

‘Kwashiorkor’ and ‘Marasmus’ diseases are caused due to the deficiency of
—Proteins

Ascorbic acid is the chemical name of
—Vitamin C

If a clean and dry needle is kept slowly on the surface of water, it floats due to

—Surface Tension

A wire of very small resistance to electric current is called

—Shunt

A process of conversion of a solid into vapour without passing through the liquid state is called

—Sublimation

Stars of extremely high densities are called

—Neutron Stars

Parkinson’s disease is characterised by the loss of nerv e cell s i n th e

—Cerebral Cortex

Coloured glasses for goggles contain

—Ferrous Oxide

The blood Pressure of an individual is 140 mm Hg. In

this statement ‘Hg’ refers to

—Mercury

‘Milarite’ is the ore of

 —Nickel

Which polymer is used for the production of nonsticky pans ?

—Teflon

Blue Colour of the sky is due to

—Scattering of light

Which vitamin is essential for utilization and retention of calcium and phosphorous ?

—Vitamin D

The HIV weekens the immunity of a person becauseit destroys

—Lymphocytes

The pressure exerted by a 760 mm column of mercury at 0°C is known as

—01 atmosphere

‘Altitude sickness’ is caused at high altitude due to

—Low partial pressure of oxygen

 The largest source of national income in India is

—Service sector

Loss of the ability of an eye to focus on near and far objects with advancing age is called

—Presbyopia

Which defect arises due to difference in the radius of curvature of cornea in the different planes ?

—Astigmatism

‘Sleeping sickness’ is a parasitic disease caused by

—Trypanosoma

Bats detect obstacles in their path by receiving thereflected

—Ultrasonic waves

The study of cells specially their formation, structure and functions is called

—Cytology

A person presses the earth least when he is

—Lying on the ground