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Important Questions Test: Coal & Petroleum - Class 8 MCQ


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15 Questions MCQ Test Science Class 8 - Important Questions Test: Coal & Petroleum

Important Questions Test: Coal & Petroleum for Class 8 2024 is part of Science Class 8 preparation. The Important Questions Test: Coal & Petroleum questions and answers have been prepared according to the Class 8 exam syllabus.The Important Questions Test: Coal & Petroleum MCQs are made for Class 8 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Important Questions Test: Coal & Petroleum below.
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Important Questions Test: Coal & Petroleum - Question 1

Which fraction of petroleum is the lightest, and how are the heavier fractions typically utilized?

Detailed Solution for Important Questions Test: Coal & Petroleum - Question 1
Light gases are the topmost fraction obtained during the refining of petroleum. These gases find applications in various industrial processes. On the other hand, the heavier fractions that are not as useful are often utilized in producing materials like asphalt, which is commonly used in surfacing roads for its durability and weather resistance.
Important Questions Test: Coal & Petroleum - Question 2

What is the main contemporary application of coal gas?

Detailed Solution for Important Questions Test: Coal & Petroleum - Question 2
In modern times, coal gas is primarily used as a source of heat rather than light. It finds extensive application as a fuel in various industries, serving as a valuable energy resource for heating purposes and other industrial processes that require a reliable heat source.
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Important Questions Test: Coal & Petroleum - Question 3

How is natural gas stored and distributed when compressed to high pressure?

Detailed Solution for Important Questions Test: Coal & Petroleum - Question 3
When natural gas is compressed to high pressure for storage and distribution, it is stored in hard cylindrical or spherical containers. These containers are designed to withstand the high pressure of the compressed gas. This form of natural gas is commonly known as Compressed Natural Gas (CNG), which is used for various purposes, including as a fuel for transport vehicles like buses, auto rickshaws, and delivery vans.
Important Questions Test: Coal & Petroleum - Question 4
Where was the first oil well in the world drilled, and which regions in India are known for oil reserves?
Detailed Solution for Important Questions Test: Coal & Petroleum - Question 4
The first oil well in the world was drilled in Pennsylvania, USA. In India, significant oil reserves are found in Assam, Gujarat, and Mumbai High, as well as in the river basins of Godavari and Krishna. These regions play a crucial role in India's oil production and exploration efforts.
Important Questions Test: Coal & Petroleum - Question 5

When was coal gas first used for street lighting in London?

Detailed Solution for Important Questions Test: Coal & Petroleum - Question 5
  • In 1810, coal gas was used for the first time to light the streets of London.
  • Coal gas is produced during the processing of coal to obtain coke.
  • The primary components of coal gas are hydrogen, methane, and carbon monoxide.
Important Questions Test: Coal & Petroleum - Question 6

What industry revolves around the sensible use of resources like soil, trees, wildlife, and forests?

Detailed Solution for Important Questions Test: Coal & Petroleum - Question 6

The agriculture industry revolves around the sensible use of natural resources such as soil, trees, wildlife, and forests. Agriculture involves the cultivation of crops and the raising of livestock for food production, making it highly dependent on the sustainable management of natural resources for long-term productivity and environmental conservation.

Important Questions Test: Coal & Petroleum - Question 7

What potential environmental impact of the burning of petroleum products?

Detailed Solution for Important Questions Test: Coal & Petroleum - Question 7

The burning of petroleum products releases carbon dioxide into the atmosphere, which is a major contributor to global warming and climate change. This process intensifies the greenhouse effect, leading to adverse environmental consequences such as rising global temperatures, sea level changes, and disruptions to ecosystems worldwide. It underscores the importance of adopting sustainable practices and reducing fossil fuel consumption to mitigate these harmful effects.

Important Questions Test: Coal & Petroleum - Question 8
What is the primary component of natural gas that is the most prominent in its composition?
Detailed Solution for Important Questions Test: Coal & Petroleum - Question 8
Natural gas is primarily composed of methane, which is the most prominent component in its composition. Methane is a colorless and odorless gas and is known for its clean-burning properties. When natural gas burns, it releases a significant amount of energy and causes very little air pollution compared to other fossil fuels. This makes methane a crucial component of natural gas and contributes to its reputation as a clean and safe energy source.
Important Questions Test: Coal & Petroleum - Question 9
Which of the following is classified as a non-renewable natural resource?
Detailed Solution for Important Questions Test: Coal & Petroleum - Question 9
Coal is classified as a non-renewable natural resource. Unlike renewable resources that can be replenished or replaced over time, non-renewable resources like coal have a limited supply that can be exhausted through human activities. Coal is a fossil fuel formed from the remains of plants that lived millions of years ago and is a crucial energy source for electricity generation and various industrial processes.
Important Questions Test: Coal & Petroleum - Question 10
What is the primary characteristic of coke derived from coal?
Detailed Solution for Important Questions Test: Coal & Petroleum - Question 10
Coke, derived from coal, is known for being the purest form of carbon. It plays a crucial role in various industries, especially in the manufacturing of steel and extraction of metals. Its high carbon content makes it a valuable material for these processes.
Important Questions Test: Coal & Petroleum - Question 11

What is a recommended method to reduce the consumption of petrol and diesel?

Detailed Solution for Important Questions Test: Coal & Petroleum - Question 11

Combining multiple errands into one trip is a practical strategy to reduce the consumption of petrol and diesel as it helps minimize unnecessary travel and optimize routes. This approach not only conserves fuel but also contributes to reducing carbon emissions and overall environmental impact.

Important Questions Test: Coal & Petroleum - Question 12

Apart from electricity generation, what is another significant use of coal?

Detailed Solution for Important Questions Test: Coal & Petroleum - Question 12

In addition to being a major fuel source for electricity generation, coal is also extensively used to produce steam for heating purposes. This application underscores the versatility of coal as a valuable resource across different industries where steam plays a crucial role in various heating applications.

Important Questions Test: Coal & Petroleum - Question 13

Which organization provides tips on saving petrol/diesel while driving?

Detailed Solution for Important Questions Test: Coal & Petroleum - Question 13

The Petroleum Conservation Research Association (PCRA) of India offers valuable tips to help individuals save petrol and diesel while driving. Following these tips can not only help in reducing fuel consumption but also contribute to environmental conservation efforts.

Important Questions Test: Coal & Petroleum - Question 14
How is petroleum formed, and what distinguishes it from water?
Detailed Solution for Important Questions Test: Coal & Petroleum - Question 14
Petroleum is a natural resource formed from organisms living in the sea, and one of its distinguishing characteristics is that it is lighter than water. This property is crucial in understanding how petroleum deposits occur and why they are typically found above water levels.
Important Questions Test: Coal & Petroleum - Question 15

What are the uses of natural gas?

Detailed Solution for Important Questions Test: Coal & Petroleum - Question 15

Natural gas is utilized for various purposes, including cooking, running central heating and cooling systems, and drying clothes. It is an efficient and widely used energy source in households and industries for its clean burning properties and versatility. 
 

Energy Source in Manufacturing:

Beyond its use as a feedstock, natural gas is a critical energy source for various manufacturing processes. It is used to power boilers, furnaces, and turbines, providing the necessary heat and power for a wide range of industrial activities. The benefits of using natural gas include its high efficiency, lower cost, and reduced environmental impact compared to other fossil fuels like coal and oil.

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