Daily UPSC Current Quiz : 13 July 2026

Consider the following statements regarding Kerolox rocket engines:

1. Kerolox is a common propellant combination where refined kerosene acts as the fuel and liquid oxygen (LOX) acts as the oxidizer.

2. Unlike methalox engines, Kerolox engines tend to produce carbon soot, which can lead to “coking” and complicate the reusability of the engine.

3. Kerolox provides a higher specific impulse (efficiency) in a vacuum compared to liquid hydrogen-based (hydrolox) engines.

Which of the statements given above is/are correct?

With reference to the “Bio-economy,” consider the following statements:

1. It refers to an economy where the basic building blocks for materials, chemicals, and energy are derived from renewable biological resources.

2. The National Bio-economy Blueprint in India focuses solely on agricultural waste management.

3. Bio-based industries like bioplastics and biofuels are key components of a circular bio-economy.

Which of the statements given above is/are correct?

Consider the following statements regarding the “Long March 10B” rocket:

1. It is a heavy-lift launch vehicle designed primarily for China’s crewed lunar exploration missions.

2. The rocket utilizes a two-stage configuration for orbital missions, but adds strap-on boosters for lunar landing missions.

3. It is designed to replace the Long March 2F rocket for future crewed space station missions.

Which of the statements given above is / are correct?

Which of the following best describes the “Zero Liquid Discharge” (ZLD) principle often discussed in the context of urban water management?