1. TriboE mask, to be used for
protection from the COVID-19 works on the following principle.
(a) Traditional herbal antiviral coatings are surfaced on the mask.
(b) Electrostatics of materials restricts the entry of virus.
(c) UV radiations are generated to destroy the virus.
(d) Nanoparticles of Graphene adsorb the virus.
2. With reference to the
Lithium, consider the following:-
- It so low in density that it floats on water.
- It is produced in the stars.
Which of the Statements
given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Q3. Which of the following
statements is/are incorrect?
1. Blazars are the most
luminous and energetic objects in the known universe.
2. Blazars do not emit gamma-rays.
Select the correct answer
using the codes given below:
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
4. Which of the following
statements is/are correct?
1. Earth crust uplift
during any earthquake produces compressional waves in the overlying atmosphere.
2. Amplitudes of these compressional
waves increase with atmospheric heights.
Select the correct answer
using the codes given below:
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
5. What is the basic
principle of using “Inactivated virus vaccine”?.
(a) Although the pathogen is killed, or made to lose its
reproduction capacity, various parts of the virus are intact.
(b) When as dead microbe is introduced, the immune system is
tricked to respond by producing antibodies.
(c) Both (a) and (b)
(d) Neither (a) Nor (b)
Answers
1-(b)
https://pib.gov.in/newsite/PrintRelease.aspx?relid=202369
2-(c)
https://pib.gov.in/PressReleasePage.aspx?PRID=1616003
3-(b)
https://pib.gov.in/PressReleasePage.aspx?PRID=1615998
4-(c)
https://pib.gov.in/PressReleasePage.aspx?PRID=1611606
5-(c)
https://pib.gov.in/PressReleasePage.aspx?PRID=1615069
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