Q. Why is there a great concern about the 'microbeads' that are released into environment?
1) They are considered harmful to marine ecosystems
2) They are considered to cause skin cancer in children
3) They are small enough to be absorbed by crop plants in irrigated fields
4) They are often found to be used as food adulterants
Q. In the context of digital technologies for entertainment, consider the following statements :
1. In Augmented Reality (AR), a simulated environment is created and the physical world is completely shut out.
2. In Virtual Reality (VR), images generated from a computer are projected onto real-life objects or surroundings.
3. AR allows individuals to be present in the world and improves the experience using the camera of smartphone or PC.
4. VR closes the world, and transposes an individual, providing complete immersion experience
Which of the statements given above is/ are correct?
1) 1 and 2 only
2) 3 and 4
3) 1, 2 and 3
4) 4 only
Q. In the context of wearable technology, which of the following tasks is /are accomplished by wearable devices?
1. Location identification of a person.
2. Sleep monitoring of a person.
3. Assisting the hearing impaired person.
Select the correct answer using the code given below.
1) 1 only
2) 2 and 3 only
3) 3 only
4) 1, 2 and 3
Q. 'RNA interference (RNAi)' technology has gained popularity in the last few years. Why?
1. It is used in developing gene silencing therapies.
2. It can be used in developing therapies for the treatment of cancer.
3. It can be used to develop hormone replacement therapies.
4. It can be used to produce crop plants that are resistant to viral pathogens.
Select the correct answer using the code given below.
1) 1, 2 and 4
2) 2 and 3
3) 1 and 3
4) 1 and 4 only
Q. Recently, scientists observed the merger of giant 'blackholes' billions of light years away from the Earth. What is the significance of this observation?
1) 'Higgs boson particles' were detected
2) 'Gravitational waves' were detected
3) Possibility of inter-galactic space travel through 'wormhole' was confirmed
4) It enabled the scientists to understand 'singularity'
Q. With reference to communication technologies, what is/ are the difference/ differences between LTE (Long-Term Evolution) and VoLTE (Voice over Long-Term Evolution)?
1. LTE is commonly marketed as 3G and VoLTE is commonly marketed as advanced 3G.
2. LTE is data-only technology and VoLTE is voice-only technology.
Select the correct answer using the code given below.
1) 1 only
2) 2 only
3) Both 1 and 2
4) Neither 1 nor 2
Q. Who was the inventor of the Spinning Jenny?
1) Sir Richard Arkwright
2) Sir Issac Pitman
3) Harry Brearley
4) James Hargreaves
Q. Which of the following is an ore of Aluminium?
1) Borax
2) Dolomite
3) Carnallite
4) Bauxite
Q. Which Arab scientist could be given the credit of christening the mathematical discipline of algorithm?
1) Al-Khwarizmi
2) Ibn al-Haytham
3) Ibn Rushd
4) Ibn Sina
Q. Prahaar is -
1) a battle tank
2) a surface-to-surface missile
3) an aircraft carrier
4) a submarine
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