CPCB Scientist B Paper  | Central Pollution Control Board Scientist B Old Paper

(Every Correct answer 1 mark, every wrong answer – 0.25 mark as a negative marking)

This is the common General knowledge paper for Scientist B in the discipline Chemical/Civil/Environmental Engineering/Information Technology/ Computer Science/ Electronics & Communication/Electrical/ Instrumentation Engineering/ Chemistry/ Microbiology.

The objectives of the Wild Life (protection Act 1972) is
(a) To preserve the biodiversity
(b) Protection and conservation of wild life
(c) To maintain essential ecological and life supporting systems
(d) All the above

The first environmental protection law promulated in India was
(a) Air Act
(b) Water Act
(c) Environmental Act
(d) Motor Vehicle Act

Methods used for softening water containing permanent hardness are
(a) Lime soda process
(b) Zeolite process
(c) Reverse osmosis
(d) All of the above

Which one is on non luminous
(a) Moon
(b) Sun
(c) Star
(d) Comet

In which one of the following sound travels fast
(a) Solid
(b) Air
(c) Water
(d) Vacuum

Thinner particles responsible for deteriorating the air-quality resulting in the damage of vital body organs are referred as PM
(a) 20
(b) 10
(c) 2.5
(d) 1

Transboundary pollution (or) Acid rain is caused by
(a) Hydrocarbon
(b) Carbon dioxide
(c) Carbon monoxide
(d) Nitrogen oxide and sulphur dioxide

‘Kyoto Protocol’, an agreement signed by various countries, is associated with
(a) Movement of hazardous waste
(b) Deep sea oil and mineral exploration
(c) Clean environment and climate change
(d) Building common food stock to save human beings form pay natural disaster

Which of the following are the key features of ‘National Ganga River Basin Authority (NGRBA)’?
(1) River basin is the unit of planning and management
(2) It spearheads the river conservation efforts at the national level
(3) One of the Chief Ministers of the States through which the Ganga flows becomes the Chairman of NGRBA or rotation basis
Select the correct Answer using the code given below
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1,2 and 3

A feature “Bluetooth” now common in mobile phones gets its name from a
(a) Chinese 10th Century king
(b) UK software company
(c) Greek Goddess
(d) Danish 10th Century king

Which of the following is an insulator?
(a) Mica
(b) Steel
(c) Galvanized steel
(d) Cadmium Copper

Rainbow is formed due to
(a) Scattering and refraction
(b) internal reflection and dispersion
(c) Reflection only
(d) Diffraction and Reflection

Who among the following has not won an Oscar?
(a) A.R. Rahman
(b) Satyajit Ray
(c) BhanuAthaiya
(d) Dev Patel

The Sun Temple is located at
(a) Bhubaneshwar
(b) Mahablipuram
(c) Konark
(d) Mathura

The gas used in artificial ripening of fruits is
(a) Carbon dioxide
(b) Acetylene
(c) Ethane
(d) Oxygen