पेट्रोलियम और गैस प्रश्नोत्तरी

What is the main component of LPG?

• Propane

• Methane

• Ethane

• Butane

Answer explanation

The main component of LPG (Liquefied Petroleum Gas) is butane, which is often mixed with propane. While propane and butane are both components, butane is typically the primary constituent in LPG mixtures.

Name the substance used in candles and ointments.

• Paraffin wax

• Bitumen

• Lubrication oil

• Petrol

Answer explanation

Paraffin wax is the primary substance used in candles due to its ability to burn cleanly and evenly. It is also commonly used in ointments for its moisturizing properties, making it the correct choice.

Which process is used to separate the various components of petroleum?

• Lubrication

• None of these

• Refining

• Paraffin

Answer explanation

The process used to separate the various components of petroleum is called refining. This process involves distillation and other techniques to isolate different hydrocarbons and products from crude oil.

What is the full form of CNG?

Answer explanation

CNG stands for Compressed Natural Gas. It is a cleaner alternative to gasoline and diesel, primarily used as a fuel for vehicles, helping to reduce air pollution and greenhouse gas emissions.

What is referred to as black gold?

Answer explanation

Black gold refers to oil, which is highly valued for its economic importance and energy production. The term highlights its significance in the global market, similar to how gold is valued.

Which fuel can be used as domestic fuel?

• LPG

• Coal tar

• Petrol

• CNG

Answer explanation

LPG (Liquefied Petroleum Gas) is commonly used as a domestic fuel for cooking and heating due to its efficiency and clean-burning properties. In contrast, coal tar, petrol, and CNG are not typically used for domestic purposes.

What is the main component of natural gas?

• Propane

• Methane

• Ethane

• Butane

Answer explanation

The main component of natural gas is methane, which typically makes up about 70-90% of its composition. Propane, ethane, and butane are present in smaller amounts, making methane the correct answer.

What is the process of converting crude oil into useful products called?

• Combustion

• Cracking

• Vaporization

• Discharge

Answer explanation

The process of converting crude oil into useful products is called cracking. This method breaks down large hydrocarbon molecules into smaller, more useful ones, such as gasoline and diesel, making it essential in the oil refining industry.

What is a simple machine?

• A complex device
• A machine with few parts
• A tool used for digging
• A type of vehicle

Answer explanation

A simple machine is a device that changes the direction or magnitude of a force.

Which of the following is not a type of simple machine?

• Lever
• Pulley
• Wrench
• Wheel and axle

Answer explanation

A wrench is a compound machine, not a simple machine.