General Science — UPSC CSE General Studies PYQs

Consider the following types of vehicles :
I. Full battery electric vehicles
II. Hydrogen fuel cell vehicles
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 :
I. All types of UAVs can do vertical landing.
II. All types of UAVs can do automated hovering.
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 :
I. Cobalt
II. Graphite
III. Lithium
IV. Nickel
How many of the above usually make up battery cathodes?

Consider the following :
I. Cigarette butts
II. Eyeglass lenses
III. Car tyres
How many of them contain plastic?

Consider the following substances :
I. Ethanol
II. Nitroglycerine
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 media?

Consider the following statements :
I. It is expected that Majorana 1 chip will enable quantum computing.
II. Majorana 1 chip has been introduced by Amazon Web Services (AWS).
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 :
I. They are man-made proteins.
II. They stimulate immunological function due to their ability to bind to specific antigens.
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 :
I. No virus can survive in ocean waters.
II. No virus can infect bacteria.
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 :
Statement I :
Some rare earth elements are used in the manufacture of flat television screens and computer monitors.
Statement II :
Some rare earth elements have phosphorescent properties.
Which one of the following is correct in respect of the above statements?