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Question 1 of 5
1. Question
2 points
Which of the following statements about “Space Brick” is/are incorrect?
NASA and SpaceX have together developed a sustainable process to make brick-like structures on the moon. These brick-like structures have been named Space Bricks.
It uses 3D printing to create structures primarily out of Moons soil.
The process can also be used to make sustainable bricks on earth.
Select the correct answer using the code given below:
Correct
Answer: A
Explanation:
A team of researchers, in a significant step towards space exploration from ISRO and IISc in Bangalore, have developed a sustainable process to make brick-like structures on the moon. These brick-like structures have been named Space Bricks. The space bricks could be used to assemble structures for habitation on the moon surface in future. It uses urea sourced from human urine which can be mixed with lunar soil as raw materials for the construction on the moon’s surface. The process enables making load-bearing bricks by using lunar soil, bacteria and guar beans. There will be a lower carbon footprint Since guar gum is used instead of cement. The bacteria are added to further crystallise the brick in any shape needed. This could also be exploited to make sustainable bricks on earth.
Incorrect
Answer: A
Explanation:
A team of researchers, in a significant step towards space exploration from ISRO and IISc in Bangalore, have developed a sustainable process to make brick-like structures on the moon. These brick-like structures have been named Space Bricks. The space bricks could be used to assemble structures for habitation on the moon surface in future. It uses urea sourced from human urine which can be mixed with lunar soil as raw materials for the construction on the moon’s surface. The process enables making load-bearing bricks by using lunar soil, bacteria and guar beans. There will be a lower carbon footprint Since guar gum is used instead of cement. The bacteria are added to further crystallise the brick in any shape needed. This could also be exploited to make sustainable bricks on earth.
Question 2 of 5
2. Question
2 points
Consider the following statements about Scramjet Engine developed by ISRO
It uses liquid Oxygen as fuel and Hydrogen is collected from the atmosphere.
It was test-launched on Avatar rocket.
Which of the statements given above is/are correct?
Correct
Answer: D
Explanation:
The scramjet engine designed by ISRO uses Hydrogen as fuel and oxygen from the atmospheric air as the Oxidizer. This makes the system much lighter, more efficient and cost-effective. The scramjet engine was test-launched on board of Rohini 560 sounding rocket (Research Rocket).
Incorrect
Answer: D
Explanation:
The scramjet engine designed by ISRO uses Hydrogen as fuel and oxygen from the atmospheric air as the Oxidizer. This makes the system much lighter, more efficient and cost-effective. The scramjet engine was test-launched on board of Rohini 560 sounding rocket (Research Rocket).
Question 3 of 5
3. Question
2 points
Consider the following statements about O-RAN.
It consists of closed multi-vendor architecture for the deployment of mobile networks.
It will make 5G more flexible and cost-efficient.
O-RAN uses software to make hardware manufactured by different companies work together.
Which of the statements given above is/are correct?
Correct
Answer: B
Explanation:
Recently, the Telecom Regulatory Authority of India (TRAI) Chairman commented that the use of Open-RAN (Radio Access Network) and software-defined telecom networks would open new opportunities for Indian entities to enter the network equipment market. O-RAN is not a technology but rather an ongoing shift in mobile network architecture that allows networks to be built using subcomponents from a variety of vendors. O-RAN has an open, multi-vendor architecture for deploying mobile networks instead of the single-vendor proprietary architecture. O-RAN uses software to make hardware manufactured by different companies work together. It’s expected to make 5G more flexible and cost-efficient.
Incorrect
Answer: B
Explanation:
Recently, the Telecom Regulatory Authority of India (TRAI) Chairman commented that the use of Open-RAN (Radio Access Network) and software-defined telecom networks would open new opportunities for Indian entities to enter the network equipment market. O-RAN is not a technology but rather an ongoing shift in mobile network architecture that allows networks to be built using subcomponents from a variety of vendors. O-RAN has an open, multi-vendor architecture for deploying mobile networks instead of the single-vendor proprietary architecture. O-RAN uses software to make hardware manufactured by different companies work together. It’s expected to make 5G more flexible and cost-efficient.
Question 4 of 5
4. Question
2 points
Consider the following statements about Mucormycosis.
It is a bacterial disease that affects people with health problems.
It can affect the lungs, guts, sinus, brain and skin.
It is contagious.
Which of the statements given above is/are correct?
Correct
Answer: B
Explanation:
Mucormycosis aka Black Fungus is a rare but serious angio-invasive infection caused by a group of fungi called mucormycetes. Spores of these ubiquitous fungi (commonly found in soil, fallen leaves, compost, animal dung and air) can be inhaled and then infect the lungs, sinuses and extend into the brain and eyes. Less often, the infection may develop when the spores enter the body through a cut or an open wound.
Mucormycosis is not a contagious disease; it cannot be spread from one person to another. Mucormycosis mainly affects people who are immunocompromised or patients already infected with other diseases. It can be rhino-orbital cerebral, pulmonary, cutaneous, gastrointestinal, or disseminated.
Incorrect
Answer: B
Explanation:
Mucormycosis aka Black Fungus is a rare but serious angio-invasive infection caused by a group of fungi called mucormycetes. Spores of these ubiquitous fungi (commonly found in soil, fallen leaves, compost, animal dung and air) can be inhaled and then infect the lungs, sinuses and extend into the brain and eyes. Less often, the infection may develop when the spores enter the body through a cut or an open wound.
Mucormycosis is not a contagious disease; it cannot be spread from one person to another. Mucormycosis mainly affects people who are immunocompromised or patients already infected with other diseases. It can be rhino-orbital cerebral, pulmonary, cutaneous, gastrointestinal, or disseminated.
Question 5 of 5
5. Question
2 points
With reference to Gene Editing, consider the following statements
It is a technique to change the RNA of an organism by using enzymes.
It can be applied in editing Plant Cells only.
Which of the statements given above is/are correct?
Correct
Answer D
Explanation:
Both the statements are incorrect.
Statement 1. Gene Editing is a technique to change the DNA and not RNA of an organism by using enzymes.
Statement 2. Animal cells and even human cells have been edited using Gene Editing. CRISPR/Cas9 technology has revolutionised this field.
Incorrect
Answer D
Explanation:
Both the statements are incorrect.
Statement 1. Gene Editing is a technique to change the DNA and not RNA of an organism by using enzymes.
Statement 2. Animal cells and even human cells have been edited using Gene Editing. CRISPR/Cas9 technology has revolutionised this field.
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