[CSP-2020] Solutions – Diagnostic Test 4

  • Here are the solutions to Diagnostic Test 4.

  • Award yourself 2 marks for every correct answer and take away -0.66 for every wrong answer.

Ans 1. (d)

The Union Cabinet has approved the promulgation of the Prohibition of Electronic Cigarettes (production, manufacture, import, export, transport, sale, distribution, storage and advertisement) Ordinance, 2019.

Electronic nicotine delivery systems (ENDS) or non-combustible tobacco products are known by many names — vapes, e-hookahs, electronic cigarettes and e-pipes. 

According to a white paper on e-cigarettes by the Indian Council of Medical Research (ICMR), depending on the battery output voltage used, nicotine solvents can release in varying amounts potential carcinogens such as acetaldehyde, formaldehyde and acetone. E-cigarettes also contain volatile organic compounds, heavy metals, such as nickel, tin and lead. 

The correct answer is: 1, 2 and 3

Ans 2. (a)

Heptachlor is an insecticide.

The correct answer is: q
Ans 3. (a)

All electromagnetic waves have same speed in vacuum. The spectrum is given below:


The correct answer is: 2 and 3 only
Ans 4. (b)
Nebulae are clusters of stars and gaseous clouds. 
Quasars (Quasi-stellar Radio Sources) are massive and extremely remote celestial objects, emitting exceptionally large amounts of energy.
A pulsar is a celestial object, thought to be a rapidly rotating neutron star, that emits regular pulses of radio waves and other electromagnetic radiation.
Ans 5. (c)
The average distance between earth and the sun is designated as one ‘astronomical unit’.
The correct answer is: distance
Ans 6. (b)

Insectivorous plants photosynthesise normally butt they often grow in nitrogen-deficient habitats and have, therefore, evolved mechanisms to capture small insects and use them as a source of nitrogen.

Parasitic plants are known to synthesise their own food through the process of photosynthesis. However, some plants have lost their capacity to photosynthesise during evolution and are, therefore, dependent on other plants, totally or partially.

Saprophytic plants derive their nourishment from dead and decaying organic matter. Although most plants are autotrophic, some of those that have lost their capacity to photosynthesise have learnt to get their nourishment from dead and decaying organic matter.

The correct answer is: 2 and 3 only

Ans 7. (d)

Paddy blight is a bacterial disease affecting paddy.

Bunchy top is a viral disease affecting banana.

The correct answer is: None of the above
The correct answer is: None of the above
Ans 8. (d)

Proteins are the principal material of skin, muscles, tendons, nerves and blood; of enzymes, antibodies and many hormones.

The correct answer is: 1, 2 and 3
Ans 9. (a)

Recently, NASA announced that they plan to investigate how new stars are born. For this, they will take the help of a natural phenomenon called “gravitational lensing”. This programme is called TEMPLATES (Targeting Extremely Magnified Panchromatic Lensed Arcs and Their Extended Star Formation).

The correct answer is: how new stars are born
Ans 10. (d)
The correct answer is: 2 only
Ans 11. (a)

Recent paper from Google’s quantum computing lab announced that the company had achieved quantum supremacy. Google’s quantum computer, named Sycamore, claimed ‘supremacy’ because it reportedly did the task in 200 seconds that would have apparently taken a supercomputer 10,000 years to complete.

The correct answer is: Google’s quantum computer
Ans 12. (a)
The first Indigenous High Temperature Fuel Cell System developed by Council of Scientific and Industrial Research (CSIR) in partnership with Indian industries under India’s flagship program named “New Millennium Indian Technology Leadership Initiative (NMITLI)” was unveiled on the occasion of CSIR Foundation Day.
A unique example of Public-Private Partnership (PPP) among CSIR’s three Laboratories [CSIR-NCL, Pune; CSIR-NPL, New Delhi & CSIR-CECRI, Karaikudi (Chennai Center)] and two Indian industries; M/s Thermax Limited, Pune and M/s Reliance Industries Limited, Mumbai exemplified exploiting materials of science developments at CSIR laboratories into practice by Industry. The 5.0 kW fuel cell system generates power in a green manner using methanol / bio-methane, with heat and water as bi-products for further use; amounting to greater than 70% efficiency, which otherwise may not be possible by other energy sources.
The correct answer is: 1 and 2 only
Ans 13. (c)
The correct answer is: Both 1 and 2
Ans 14. (b)

Aflatoxin is a mould produced by fungus that are toxic and carcinogenic.

The correct answer is: Fungi
Ans 15. (c)
The correct answer is: The technology is aimed at conversion of wet biomass into hydro-char
Ans 16. (c)
All fungi are eukaryotes which means that their cells are more similar to those of plants and animals. They don’t photosynthesize. Mycoviruses are viruses that infect fungi.
Ans 17. (c)

Scientists from Rutgers University have figured out how diatoms, small algae that produce 20% of the world’s oxygen, harness solar energy. The discovery could lead to the development of algae­ based biofuels and relief from fossil fuels. The algae store energy in the form of oils. Further understanding this process can release a lot of this oil which can be used as biofuel to drive vehicles.

The correct answer is:  Both 1 and 2

Ans 18. (d)
Ans 19. (a)
The correct answer is: origin of universe
Ans 20. (b)
Ans 21. (c)
The correct answer is: a pesticide used in plantation crops of Kerala and Karnataka
Ans 22. (a)
The correct answer is: bacteria
Ans 23. (b)

Curiosity Rover – Mars and New Horizons – Pluto

The correct answer is: 1 only
Ans 24. (c)

FASTag is a device which uses RFID technology for making toll-payment directly from the prepaid account.

The correct answer is: vehicular movement
Ans 25. (c)

Unique Identification Authority of India (UIDAI) is a statutory authority established under the provisions of the Aadhaar Act, 2016. It works under the aegis of Ministry of Electronics and Information technology.


Categories: CSP_GS I

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