Practice, one question at a time.

Consider the following types of vehicles:

1. I.Full battery electric vehicles
2. II.Hydrogen fuel cell vehicles
3. III.Fuel cell electric hybrid vehicles

How many of the above are considered as alternative powertrain vehicles?

With reference to Unmanned Aerial Vehicles (UAVs), consider the following statements:

1. I.All types of UAVs can do vertical landing.
2. II.All types of UAVs can do automated hovering.
3. III.All types of UAVs can use battery only as a source of power supply.

How many of the statements given above are correct?

In the context of electric vehicle batteries, consider the following elements:

1. I.Cobalt
2. II.Graphite
3. III.Lithium
4. IV.Nickel

How many of the above usually make up battery cathodes?

Consider the following:

1. I.Cigarette butts
2. II.Eyeglass lenses
3. III.Car tyres

How many of them contain plastic?

Consider the following substances:

1. I.Ethanol
2. II.Nitroglycerine
3. III.Urea

Coal gasification technology can be used in the production of how many of them?

What is the common characteristic of the chemical substances generally known as CL-20, HMX and LLM-105, which are sometimes talked about in the media?

Consider the following statements:

1. I.It is expected that Majorana 1 chip will enable quantum computing.
2. II.Majorana 1 chip has been introduced by Amazon Web Services (AWS).
3. III.Deep learning is a subset of machine learning.

Which of the statements given above are correct?

With reference to monoclonal antibodies, often mentioned in news, consider the following statements:

1. I.They are man-made proteins.
2. II.They stimulate immunological function due to their ability to bind to specific antigens.
3. III.They are used in treating viral infections like that of Nipah virus.

Which of the statements given above are correct?

Consider the following statements:

1. I.No virus can survive in ocean waters.
2. II.No virus can infect bacteria.
3. III.No virus can change the cellular transcriptional activity in host cells.

How many of the statements given above are correct?

Consider the following statements:

1. Statement I :Activated carbon is a good and an attractive tool to remove pollutants from effluent streams and to remediate contaminants from various industries.
2. Statement II :Activated carbon exhibits a large surface area and a strong potential for adsorbing heavy metals.
3. Statement III :Activated carbon can be easily synthesized from environmental wastes with high carbon content.

Which one of the following is correct in respect of the above statements?

Consider the following statements:

1. Statement I :Studies indicate that carbon dioxide emissions from cement industry account for more than 5% of global carbon emissions.
2. Statement II :Silica-bearing clay is mixed with limestone while manufacturing cement.
3. Statement III :Limestone is converted into lime during clinker production for cement manufacturing.

Which one of the following is correct in respect of the above statements?

Consider the following statements:

1. Statement I :At the 28th United Nations Climate Change Conference (COP28), India refrained from signing the ‘Declaration on Climate and Health’.
2. Statement II :The COP28 Declaration on Climate and Health is a binding declaration; and if signed, it becomes mandatory to decarbonize the health sector.
3. Statement III :If India’s health sector is decarbonized, the resilience of its health-care system may be compromised.

Which one of the following is correct in respect of the above statements?