Widening of a river valley takes place due to – (1) Corrosion (2) Lateral erosion (3) Corrasion (4) Hydraulic action

Widening of a river valley takes place due to – (1) Corrosion (2) Lateral erosion (3) Corrasion (4) Hydraulic action
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(2) Lateral erosion Explanation: Lateral or sideways erosion widens the river valley; while, Vertical or downward erosion deepens the river valley. Due to continued lateral erosion, the river valley increasingly becomes broader and shallower. The valley slopes are also eroded by weathering and mass wasting and by the development of tributary valleys.
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Widening of a river valley takes place due to (1) Corrosion (2) Lateral erosion (3) Corrasion (4) Hydraulic action

Description : Widening of a river valley takes place due to (1) Corrosion (2) Lateral erosion (3) Corrasion (4) Hydraulic action

Last Answer : Lateral erosion

The sideways erosion which widens the river valley called? (1) Lateral Corrosion (2) Vertical Corrosion (3) Side Corrosion (4) Mean Corrosion

Description : The sideways erosion which widens the river valley called? (1) Lateral Corrosion (2) Vertical Corrosion (3) Side Corrosion (4) Mean Corrosion

Last Answer : (1) Lateral Corrosion Explanation: Sideways form of erosion is called lateral erosion. In lateral erosion, the river erodes away at its banks and widens the river channel. Together, vertical and lateral erosion create the distinctive V-shaped valley that is found in rivers in their upper course.

What process takes place during the youthful stage of a river? (1) Valley widening (2) River rejuvenating (3) Valley deepening (4) Meandering

Description : What process takes place during the youthful stage of a river? (1) Valley widening (2) River rejuvenating (3) Valley deepening (4) Meandering

Last Answer : (3) Valley deepening Explanation: The youthful stage of the river is when water flow is the quickest. Because of steep slope and steep channel gradient in this stage, rivers actively deepen ... slopes of convex plan. Waterfalls, Vshaped valleys and interlocking spurs are features of this stage.

What process takes place during the youthful stage of a river ? (1) Valley widening (2) River rejuvenating (3) Valley deepening (4) Meandering

Description : What process takes place during the youthful stage of a river ? (1) Valley widening (2) River rejuvenating (3) Valley deepening (4) Meandering

Last Answer : Valley deepening

Hydraulic Action is a type of erosion caused by – (1) Running water (2) Wind (3) Glacier (4) None of these

Description : Hydraulic Action is a type of erosion caused by – (1) Running water (2) Wind (3) Glacier (4) None of these

Last Answer : (1) Running water Explanation: Hydraulic action is one of the main forms of river erosion (example, of erosion due to running water) in which the force of the river against the banks can cause air to be trapped in cracks and crevices. The pressure weakens the banks and gradually wears it away.

Which of the following is a typical feature of river erosion in youthful stage? (1) Ox-bow lake (2) Gorge (3) Valley in valley (4) Cut-bank

Description : Which of the following is a typical feature of river erosion in youthful stage? (1) Ox-bow lake (2) Gorge (3) Valley in valley (4) Cut-bank

Last Answer : (2) Gorge Explanation: Youthful rivers or streams are typically found in the highland or mountainous areas. They are characterized by steep slopes, a relatively small volume of water and rapid ... small lakes, waterfalls, rapids, V-shaped valleys, gorges and interlocking spurs are frequently found.

A rift valley is formed mainly due to: [NDA 2003] (a) forces of tension in the earth's crust (b) the subsidence of the floor of a river valley (c) the valley formed after the formation of fold mountains (d) the deepening of a valley by ice action

Description : A rift valley is formed mainly due to: [NDA 2003] (a) forces of tension in the earth's crust (b) the subsidence of the floor of a river valley (c) the valley formed after the formation of fold mountains (d) the deepening of a valley by ice action

Last Answer : Ans: (b)

Hanging Valley is formed due to the action of – (1) Glacier (2) River (3) Ocean (4) Wind

Description : Hanging Valley is formed due to the action of – (1) Glacier (2) River (3) Ocean (4) Wind

Last Answer : (1) Glacier Explanation: A hanging valley is a tributary valley with the floor at a higher relief than the main channel into which it flows. They are most commonly associated with U-shaped ... were originally at the same elevation, the shallower valley appears to be 'hanging' above the main valley

Rift Valley is formed – (1) between two anticlines (2) between two faults (3) erosion of synclinal basin (4) due to volcanic eruption

Description : Rift Valley is formed – (1) between two anticlines (2) between two faults (3) erosion of synclinal basin (4) due to volcanic eruption

Last Answer : (2) between two faults Explanation: A rift valley is a linear-shaped lowland between several highlands or mountain ranges created by the action of a geologic rift or fault. It is formed by the subsidence of a segment of the Earth's crust between dip-slip, or normal, faults.

Damage to metal surface by mechanical action is called (A) Pitting (B) Corrosion (C) Erosion (D) None of these

Description : Damage to metal surface by mechanical action is called (A) Pitting (B) Corrosion (C) Erosion (D) None of these

Last Answer : Option C

Which is a type of erosion caused by hydraulic action

Description : Which is a type of erosion caused by hydraulic action

Last Answer : flowing water

Hydraulic Action is a type of erosion caused by (1) Running water (2) Wind (3) Glacier (4) None of these

Description : Hydraulic Action is a type of erosion caused by (1) Running water (2) Wind (3) Glacier (4) None of these

Last Answer : Running water

Which of the following is a typical feature of river erosion in youthful stage ? (1) Ox-bow lake (2) Gorge (3) Valley in valley (4) Cut-bank

Description : Which of the following is a typical feature of river erosion in youthful stage ? (1) Ox-bow lake (2) Gorge (3) Valley in valley (4) Cut-bank

Last Answer : Gorge

Rusting of iron takes place due to – (1) oxidation (2) carbonation (3) exfoliation (4) corrosion

Description : Rusting of iron takes place due to – (1) oxidation (2) carbonation (3) exfoliation (4) corrosion

Last Answer : (1) oxidation Explanation: The rusting of iron is an electrochemical process that begins with the transfer of electrons from iron to oxygen. The rate of corrosion is affected by water and accelerated by ... iron is in contact with water, oxygen, or other strong oxidants, or acids, it rusts.

Rusting of iron takes place due to (1) oxidation (2) carbonation (3) exfoliation (4) corrosion

Description : Rusting of iron takes place due to (1) oxidation (2) carbonation (3) exfoliation (4) corrosion 

Last Answer : oxidation

Hanging Valley is formed due to the action of (1) Glacier (2) River (3) Ocean (4) Wind

Description : Hanging Valley is formed due to the action of (1) Glacier (2) River (3) Ocean (4) Wind

Last Answer : Glacier

Rift Valley is formed (1) between two anticlines (2) between two faults (3) erosion of synclinal basin (4) due to volcanic eruption

Description : Rift Valley is formed (1) between two anticlines (2) between two faults (3) erosion of synclinal basin (4) due to volcanic eruption

Last Answer : between two faults

River Damodar is called 'Sorrow of Bengal' because it : [CPO SI 2003] (a) gets flooded often causing havoc (b) causes maximum soil erosion (c) forms number of dangerous waterfalls (d) is not a perennial river

Description : River Damodar is called 'Sorrow of Bengal' because it : [CPO SI 2003] (a) gets flooded often causing havoc (b) causes maximum soil erosion (c) forms number of dangerous waterfalls (d) is not a perennial river

Last Answer : Ans: (a)

River erosion is at its greatest where river's – (1) depth is more (2) breadth is more (3) flow is fast (4) gradient is more

Description : River erosion is at its greatest where river's – (1) depth is more (2) breadth is more (3) flow is fast (4) gradient is more

Last Answer : (3) flow is fast Explanation: The outer bank (called a cut bank) has the greatest erosion because the water is flowing faster along the outer bank than the inner bank. The slower water allows sediment to be deposited (called a point bar).

The main cause of recurring flood is – (1) Soil erosion (2) Deforestation (3) Silting of river beds (4) All of the above

Description : The main cause of recurring flood is – (1) Soil erosion (2) Deforestation (3) Silting of river beds (4) All of the above

Last Answer : (4) All of the above Explanation: Floods are caused by a variety of factors, both natural and man-made. Apart from soil erosion and silting of river beds which force the water of rivers ... against water flow and in turn protect the underlying soil from getting eroded and then getting washed away.

River Damodar is called 'Sorrow of Bengal' because it – (1) gets flooded often causing havoc (2) causes maximum soil erosion (3) forms number of dangerous waterfalls (4) is not a perennial river

Description : River Damodar is called 'Sorrow of Bengal' because it – (1) gets flooded often causing havoc (2) causes maximum soil erosion (3) forms number of dangerous waterfalls (4) is not a perennial river

Last Answer : (1) gets flooded often causing havoc Explanation: Damodar River is a river flowing across the Indian states of Jharkhand and West Bengal. Rich in mineral resources, the valley is home to ... Bengal, the Damodar and its tributaries have somewhat been tamed with the construction of several dams.

Which of the following was not a purpose for building Farakka Barrage? (1) Checking water flowing into Bangladesh (2) Checking silting of Kolkata Port (3) Preventing erosion of Kolkata Port (4) Facilitating navigation in Ganga river

Description : Which of the following was not a purpose for building Farakka Barrage? (1) Checking water flowing into Bangladesh (2) Checking silting of Kolkata Port (3) Preventing erosion of Kolkata Port (4) Facilitating navigation in Ganga river

Last Answer : (4) Facilitating navigation in Ganga river Explanation: The Farakka Barrage was created by India in 1975 to divert water from the Ganges River to the Bhagirathi-Hooghly river system. It was ... to flush out the sediment deposition from the Kolkata harbour and thus prevent erosion of Kolkata port.

Loktak is a (a) Valley (b) Lake (c) River (d) Mountain Range

Description : Loktak is a (a) Valley (b) Lake (c) River (d) Mountain Range

Last Answer : Ans: (b)

The first river valley project started in India is (a) Bhakra Nangal Project (b) Damodar Valley Project (c) Kosi Project (d) Hirakud Project

Description : The first river valley project started in India is (a) Bhakra Nangal Project (b) Damodar Valley Project (c) Kosi Project (d) Hirakud Project

Last Answer : Ans: (b)

Which is India’s largest multipurpose river valley project? (a) Bhakra Nangal (b) Damodar Valley (c) Nagarjunasagar (d) Thungabhadra

Description : Which is India’s largest multipurpose river valley project? (a) Bhakra Nangal (b) Damodar Valley (c) Nagarjunasagar (d) Thungabhadra

Last Answer : Ans: (a)

Bhim Tal is a (a) river in West Bengal (b) lake around Nainital (c) strike valley (d) pass in Kashmir

Description : Bhim Tal is a (a) river in West Bengal (b) lake around Nainital (c) strike valley (d) pass in Kashmir

Last Answer : Ans: (c)

Which of the following are true with regard to coal in India? 2. Coal is found in sedimentary rocks 3. The best quality of coal is lignite 4. The largest and oldest coalfield in India is known as the 'Ruhr of India'. 5. The Damodar river valley is popularly known as the Ruhr of India. (a) I and IV (b) I, II and III (c) I, III and IV (d) II, III and IV

Description : Which of the following are true with regard to coal in India? 2. Coal is found in sedimentary rocks 3. The best quality of coal is lignite 4. The largest and oldest coalfield in India is known as the 'Ruhr of India'. 5. The ... (a) I and IV (b) I, II and III (c) I, III and IV (d) II, III and IV

Last Answer : Ans: (c)

Match the following: [Asstt Comm PF 2002] River valley project State A. Purna Project 1. Gujarat B: Bhima Project 2. Maharashtra C. Kakrapara Project 3. Punjab D. Tehri Dam Project 4. Uttaranchal 5. Uttar Pradesh 6. Karnataka A B C D (a) 1 6 5 3 (b) 2 3 1 4 (c) 1 3 5 4 (d) 2 6 1 3

Description : Match the following: [Asstt Comm PF 2002] River valley project State A. Purna Project 1. Gujarat B: Bhima Project 2. Maharashtra C. Kakrapara Project 3. Punjab D. Tehri Dam Project 4. Uttaranchal 5. Uttar Pradesh 6. Karnataka A B C D (a) 1 6 5 3 (b) 2 3 1 4 (c) 1 3 5 4 (d) 2 6 1 3

Last Answer : Ans: (b)

Which of the following are true with regard to coal in India? 1. Coal is found in sedimentary rocks 2. The best quality of coal is lignite 3. The largest and oldest coalfied in india is known as the ruhr of india 4. The Damodar river valley is popularly known as the 'Ruhr of India' (a) I and IV (b) I, II and III (c) I, II and IV (d) II, III and IV

Description : Which of the following are true with regard to coal in India? 1. Coal is found in sedimentary rocks 2. The best quality of coal is lignite 3. The largest and oldest coalfied in india is known as the ruhr of india 4. The Damodar ... (a) I and IV (b) I, II and III (c) I, II and IV (d) II, III and IV

Last Answer : Ans: (c)

Which one of the following statements is wrong regarding the "Vale of Kashmir" ? [CDS 2002] (a) It is a synclinal valley (b) It is situated 'between the Pir Panjal Range and the Lesser Himalayas (c) It is drained by the river Jhelum (d) Previously it was a bed of a great lake, subsequently uplifted.

Description : Which one of the following statements is wrong regarding the "Vale of Kashmir" ? [CDS 2002] (a) It is a synclinal valley (b) It is situated 'between the Pir Panjal Range and the Lesser Himalayas (c) It is drained by the river Jhelum (d) Previously it was a bed of a great lake, subsequently uplifted.

Last Answer : Ans: (b)

Which river in India flows in a rift valley? (1) Kaveri (2) Tapti (3) Son (4) Ken

Description : Which river in India flows in a rift valley? (1) Kaveri (2) Tapti (3) Son (4) Ken

Last Answer : (2) Tapti Explanation: Tapti is one of the rivers in India that flows in a rift valley, flowing westward between two spurs of the Satpura Range, across the Jalgaon plateau region in Maharashtra ate, and through the plain of Surat in Guiarat state to the Gulf of Khambhat.

The greatest erosive power of a river is associated with – (1) gorges (2) meanders (3) inter-locking spurs (4) V-shaped valley

Description : The greatest erosive power of a river is associated with – (1) gorges (2) meanders (3) inter-locking spurs (4) V-shaped valley

Last Answer : (2) meanders Explanation: Erosive power of a stream is proportional to the square of the velocity. Thus, when discharge increases, the depth increases and the velocity increases, resulting in dramatic ... on the outer bank erodes a deeper channel. The result of all these actions is a meander

What is Dakshin Gangotri? (1) River valley in Andhra Pradesh (2) Unmanned station located in Antarctica (3) Second source of River Ganga (4) Island in the Indian Ocean

Description : What is Dakshin Gangotri? (1) River valley in Andhra Pradesh (2) Unmanned station located in Antarctica (3) Second source of River Ganga (4) Island in the Indian Ocean

Last Answer : (2) Unmanned station located in Antarctica Explanation: Dakshin Gangotri was the first scientific base station of India situated in Antarctica, part of the Indian Antarctic Program. Established during ... Solar energy. The station was entirely computerized to record all data that was re-searched.

Which one of the following river flows through a rift valley? (1) Godavari (2) Narmada (3) Krishna (4) Mahanadi

Description : Which one of the following river flows through a rift valley? (1) Godavari (2) Narmada (3) Krishna (4) Mahanadi

Last Answer : (2) Narmada Explanation: Narmada is the only river in India that flows in a rift valley, flowing west between the Satpura and Vindhya ranges. The Tapti River and Mahi River also flow through ... valley through which the Narmada River and Tapti River flow in their present journey to the Arabian Sea.

The joint river valley venture of India and Nepal is – (1) Gomati (2) Chambal (3) Damodar (4) Kosi

Description : The joint river valley venture of India and Nepal is – (1) Gomati (2) Chambal (3) Damodar (4) Kosi

Last Answer : (4) Kosi Explanation: Immediately after independence, policy planners sought a solution to the recurring flood menace faced by people of North Bihar from the Kosi and other rivers flowing ... to provide substantial flood cushion along with large irrigation and power benefits to both countries.

'Loktak' is a – (1) Valley (2) Lake (3) River (4) Mountain Range

Description : 'Loktak' is a – (1) Valley (2) Lake (3) River (4) Mountain Range

Last Answer : (2) Lake Explanation: Loktak Lake, the largest freshwater lake in north-east India, also called the only Floating lake in the world due to the floating phumdis on it, is located near Moirang in Manipur state.

Differential lock in tractor is used to improve a) Lateral stability b) Braking performance c) Hydraulic lift d) Traction of a wheel

Description : Differential lock in tractor is used to improve a) Lateral stability b) Braking performance c) Hydraulic lift d) Traction of a wheel

Last Answer : Braking performance 

Differential lock in tractor is used to improve a) Lateral stability b) Braking performance c) Hydraulic lift d) Traction of a wheel

Description : Differential lock in tractor is used to improve a) Lateral stability b) Braking performance c) Hydraulic lift d) Traction of a wheel

Last Answer : ans d

The deterioration of a metal by an electrochemical process is commonly termed as – (1) Erosion (2) Corrosion (3) Passivation (4) Abrasion

Description : The deterioration of a metal by an electrochemical process is commonly termed as – (1) Erosion (2) Corrosion (3) Passivation (4) Abrasion

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In a furnace employing forced draught as compared to induced draught, (A) Air is sucked in, so air leaks are more and hence the furnace efficiency is reduced (B) The fan operates hot and hence blades are liable to corrosion and erosion (C) Positive pressure exists in the furnace (D) None of these

Description : In a furnace employing forced draught as compared to induced draught, (A) Air is sucked in, so air leaks are more and hence the furnace efficiency is reduced (B) The fan operates hot and hence blades are liable to corrosion and erosion (C) Positive pressure exists in the furnace (D) None of these

Last Answer : (C) Positive pressure exists in the furnace

Corrosion is (A) A physical phenomenon (B) A chemical phenomenon (C) Same as erosion (D) An uncontrollable phenomenon

Description : Corrosion is (A) A physical phenomenon (B) A chemical phenomenon (C) Same as erosion (D) An uncontrollable phenomenon

Last Answer : Option B

The deterioration of a metal by an electrochemical process is commonly termed as (1) Erosion (2) Corrosion (3) Passivation (4) Abrasion

Description : The deterioration of a metal by an electrochemical process is commonly termed as (1) Erosion (2) Corrosion (3) Passivation (4) Abrasion

Last Answer : Corrosion

The formation of laterite soil is mainly due to: (a) weathering (b) erosion (c) leaching (d) deposition

Description : The formation of laterite soil is mainly due to: (a) weathering (b) erosion (c) leaching (d) deposition

Last Answer : Ans: (c)

Which one of the following east flowing rivers of India has rift valley due to down warping (a) Damodar (b) Mahanadi (c) Sone (d) Yamuna

Description : Which one of the following east flowing rivers of India has rift valley due to down warping (a) Damodar (b) Mahanadi (c) Sone (d) Yamuna

Last Answer : Ans: (a)

Which one of the following east flowing rivers of India forms rift valley due to down warping? [IAS 1998] (a) Damodar (b) Mahanadi (c) Son (d) Yamuna

Description : Which one of the following east flowing rivers of India forms rift valley due to down warping? [IAS 1998] (a) Damodar (b) Mahanadi (c) Son (d) Yamuna

Last Answer : Ans: (a)

A landscape which is caused due to the fissure in the earth along which one side has moved down with reference to the other is known as – (1) Rift Valley (2) U Shaped Valley (3) V Shaped Valley (4) Hanging Valley

Description : A landscape which is caused due to the fissure in the earth along which one side has moved down with reference to the other is known as – (1) Rift Valley (2) U Shaped Valley (3) V Shaped Valley (4) Hanging Valley

Last Answer : (2) U Shaped Valley Explanation: A rift valley is a linear-shaped lowland caused due to the fissure in the earth along which one side moves down with reference to the other. It is commonly ... valley is formed on a divergent plate boundary, a crustal extension, a spreading apart of the surface.

Write the mechanism of corrosion of metal due to action of oxygen.

Description : Write the mechanism of corrosion of metal due to action of oxygen.

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Match the following: Place of Tourist Interest Indian State A. Araku Valley 1. Andhra Pradesh B. Dalhousie 2. Himachal Pradesh C. Kodaikkanal 3. Kerala D. Munnar 4. Tamil Nadu 5. Uttaranchal 6. Uttar Pradesh A B C D (a) 6 3 1 5 (b) 1 2 4 3 (c) 1 3 4 5 (d) 6 2 1 3

Description : Match the following: Place of Tourist Interest Indian State A. Araku Valley 1. Andhra Pradesh B. Dalhousie 2. Himachal Pradesh C. Kodaikkanal 3. Kerala D. Munnar 4. Tamil Nadu 5. Uttaranchal 6. Uttar Pradesh A B C D (a) 6 3 1 5 (b) 1 2 4 3 (c) 1 3 4 5 (d) 6 2 1 3

Last Answer : Ans: (b)

Which is the hottest place on Earth? (1) Death Valley - California (2) El Azizia - Libya (3) Jacobabad - Pakistan (4) Atacama - Peru

Description : Which is the hottest place on Earth? (1) Death Valley - California (2) El Azizia - Libya (3) Jacobabad - Pakistan (4) Atacama - Peru

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Which place is called as "Silicon Valley" of India? (1) Delhi (2) Pune (3) Bengaluru (4) Hyderabad

Description : Which place is called as "Silicon Valley" of India? (1) Delhi (2) Pune (3) Bengaluru (4) Hyderabad

Last Answer : (3) Bengaluru Explanation: The Silicon Valley of India is a nickname of Bangalore. The name signifies Bangalore's status as a hub for information technology (IT) companies in India and is a comparative reference to the original Silicon Valley, based around Santa Clara Valley, California, USA.