Free UPSC Civil Services Examination (India) Exam Questions and Answers

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?

• AA. Only one
• BB. Only two
• CC. All the three
• DD. None

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. Al types of UAVs can use battery only as a source of power supply. How many of the statements given above are correct?

• AA. Only one
• BB. Only two
• CC. All the three
• DD. None

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?

• AA. Only one
• BB. Only two
• CC. Only three
• DD. All the four

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

• AA. Only one
• BB. Only two
• CC. All the three
• DD. None

Consider the following substances: I. Ethanol II. Nitroglycerine III. Urea Coal gasification technology can be used in the production of how many of them?

• AA. Only one
• BB. Only two
• CC. All the three
• DD. None

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?

• AA. These are alternatives to hydro-fluorocarbon refrigerants
• BB. These are explosives in military weapons
• CC. These are high-energy fuels for cruise missiles
• DD. These are fuels for rocket propulsion

Consider the following statements: I. It is expected that Majorana l chip will enable quantum computing. II. Majorana l 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?

• AA. I and II only
• BB. II and III only
• CC. I and III only
• DD. I, II and III

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?

• AA. I and II only
• BB. II and III only
• CC. I and III only
• DD. I, II and III

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?

• AA. Only one
• BB. Only two
• CC. All the three
• DD. None

Consider the following statements: Statement I: Activated carbon is a good and an attractive tool to remove pollutants from effluent streams and to remediate contaminants from various industries. Statement II: Activated carbon exhibits a large surface area and a strong potential for adsorbing heavy metals. 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?

• AA. Both statement II and Statement III are correct and both of them explain Statement I
• BB. Both Statement II and Statement III are correct but only one of them explains Statement I
• CC. Only one of the Statements II and III is correct and that explains Statement I
• DD. Neither Statement II nor Statement III is correct.