alleryWhich fitting should generators have to reduce noise pollution?
- Silencers
- Chimneys
- Filters
- Radiators
Show answer and solution
Correct answer: A. Silencers
Silencers cut down the sound a generator makes, which lowers noise pollution.
CBSE Class 10 Resources, Agriculture & Minerals — practice questions — page 21
Explore 764 free Resources, Agriculture & Minerals questions in CBSE Class 10 Social Science. Open each question or exercise to read its content, reference answers and available explanation.
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Which fitting should generators have to reduce noise pollution?Read the answer and worked solution →What does the ISO 14001 certification held by NTPC relate to?Read the answer and worked solution →Which sector is often called the backbone of development in general?Read the answer and worked solution →Mumbai's first successful textile mill was founded in what year?Read the answer and worked solution →In cotton textiles, which stage is highly decentralised to keep traditional weaving skills alive?Read the answer and worked solution →Handspun khadi gives large-scale employment to weavers working where?Read the answer and worked solution →Most jute mills in India are found along which river?Read the answer and worked solution →Rishra, near Kolkata, got its first jute mill in which year?Read the answer and worked solution →After Partition in 1947, what share of the jute producing area went to Bangladesh?Read the answer and worked solution →India is second in world sugar production but first in which sugar product?Read the answer and worked solution →Why is the sugar industry ideally suited to the cooperative sector?Read the answer and worked solution →Why are sugar mills shifting towards southern and western states?Read the answer and worked solution →Which country is the world's leading silk producer, ahead of India?Read the answer and worked solution →Which two types of steel plants are found in India?Read the answer and worked solution →Which government-owned steel company did Jawaharlal Nehru form in the 1950s?Read the answer and worked solution →Which mineral is left behind when surface rocks decompose and soluble parts are washed away?Read the answer and worked solution →Which of these is a major metallic mineral obtained from veins and lodes?Read the answer and worked solution →Gypsum, potash salt and sodium salt are mainly formed by which process?Read the answer and worked solution →Where do alluvial placer deposits of gold and platinum usually occur?Read the answer and worked solution →Which source supplies most of the common salt, magnesium and bromine used commercially?Read the answer and worked solution →Which resource is found in large quantities on the floor of the ocean?Read the answer and worked solution →Magnetite is especially valuable to which industry because of its magnetic qualities?Read the answer and worked solution →What share of India's iron ore production in 2018-19 came from Odisha, Chhattisgarh, Karnataka and Jharkhand?Read the answer and worked solution →Ferrous minerals account for roughly what share of the value of metallic mineral production?Read the answer and worked solution →About how much manganese is needed to make one tonne of steel?Read the answer and worked solution →Apart from steel, which product also uses manganese in its manufacture?Read the answer and worked solution →The Kudremukh iron ore mines are located in which region?Read the answer and worked solution →In which state are the Bailadila hills, which hold very high grade hematite?Read the answer and worked solution →How many deposits of super high grade hematite does the Bailadila range comprise?Read the answer and worked solution →Through which port is iron ore from the Maharashtra and Goa belt exported?Read the answer and worked solution →
Worked practice questions
What does the ISO 14001 certification held by NTPC relate to?
- Food hygiene and safety rules
- Environment management systems
- Software quality testing
- Road safety standards
Show answer and solution
Correct answer: B. Environment management systems
ISO 14001 is the standard for an environment management system, which NTPC holds.
Which sector is often called the backbone of development in general?
- Manufacturing sector
- Mining and quarrying
- Forestry and logging
- Fishing and farming
Show answer and solution
Correct answer: A. Manufacturing sector
The manufacturing sector is considered the backbone of development because it modernises farming and creates jobs.
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