Water pipes in hilly areas often burst on a cold frosty night, because – (1) The material of which pipes are made contracts due to cold and so breaks (2) Water in the pipes freezes and on freezing water expands, so pipes break (3) Frost makes the pipes rusty, so they break (4) None of these

Water pipes in hilly areas often burst on a cold frosty night, because – (1) The material of which pipes are made contracts due to cold and so breaks (2) Water in the pipes freezes and on freezing water expands, so pipes break (3) Frost makes the pipes rusty, so they break (4) None of these
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(2) Water in the pipes freezes and on freezing water expands, so pipes break Explanation: The temperature may fall below 0° C during cold frosty nights which converts the water inside the pipes into ice, resulting in an increase in volume. This exerts great force on the pipes and as a result, they burst.
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Water pipes in hilly areas often burst on a cold frosty night, because (1) the material of which pipes are made contracts due to cold and so breaks (2) water in the pipes freezes and on freezing water expands, so pipes break (3) frost makes the pipes rusty, so they break (4) None of these

Description : Water pipes in hilly areas often burst on a cold frosty night, because (1) the material of which pipes are made contracts due to cold and so breaks (2) water in the pipes freezes and on freezing water expands, so pipes break (3) frost makes the pipes rusty, so they break (4) None of these

Last Answer : water in the pipes freezes and on freezing water expands, so pipes break

Pipelines in cold countries often burst in winter, because – (1) Water freezes and expands in its volume (2) Temperature of ice is less than that of water (3) Pipelines contract in their volume (4) Pipelines expand due to freezing

Description : Pipelines in cold countries often burst in winter, because – (1) Water freezes and expands in its volume (2) Temperature of ice is less than that of water (3) Pipelines contract in their volume (4) Pipelines expand due to freezing

Last Answer : (1) Water freezes and expands in its volume Explanation: Water expands on freezing. When liquid water is cooled, it contracts like one would expect until a temperature of approximately 4 degrees ... it expands by approximately 9%. The fact that water expands upon freezing causes icebergs to float.

Pipelines in cold countries often burst in winter, because (1) water freezes and expands in its volume (2) temperature of ice is less than that of water (3) pipelines contract in their volume (4) pipelines expand due to freezing

Description : Pipelines in cold countries often burst in winter, because (1) water freezes and expands in its volume (2) temperature of ice is less than that of water (3) pipelines contract in their volume (4) pipelines expand due to freezing

Last Answer : water freezes and expands in its volume

In severe winter, in cold countries water pipes burst because – (1) Water expands on freezing (2) Contraction of water pipes (3) High atmospheric pressure (4) Combined effect of all the above three

Description : In severe winter, in cold countries water pipes burst because – (1) Water expands on freezing (2) Contraction of water pipes (3) High atmospheric pressure (4) Combined effect of all the above three

Last Answer : (1) Water expands on freezing Explanation: Most liquids have a quite simple behavior when they are cooled (at a fixed pressure): they shrink. The liquid contract as it is cooled; ... substance solidifies, which causes it to contract some more because crystalline solids are usually tightly packed.

In severe winter, in cold countries water pipes burst because (1) water expands on freezing (2) contraction of water pipes (3) high atmospheric pressure (4) combined effect of all the above three

Description : In severe winter, in cold countries water pipes burst because (1) water expands on freezing (2) contraction of water pipes (3) high atmospheric pressure (4) combined effect of all the above three

Last Answer : water expands on freezing

When water is filled in a bottle and is allowed to freeze, the bottle breaks because _____? A. Water expands on freezing B. Bottle contracts at freezing point C. Temperature outside the bottle is less than that inside the bottle D. None of them

Description : When water is filled in a bottle and is allowed to freeze, the bottle breaks because _____? A. Water expands on freezing B. Bottle contracts at freezing point C. Temperature outside the bottle is less than that inside the bottle D. None of them

Last Answer : ANSWER: A

When water is filled in a bottle and is allowed to freeze, the bottle breaks because A. Water expands on freezing (Answer) B. Bottle contracts at freezing point C. temperature outside the bottle is less than that inside the bottle. D. None of the above

Description : When water is filled in a bottle and is allowed to freeze, the bottle breaks because A. Water expands on freezing (Answer) B. Bottle contracts at freezing point C. temperature outside the bottle is less than that inside the bottle. D. None of the above

Last Answer : A. Water expands on freezing (Answer)

When hot-water is sprinkled on a hotter glass tumbler, it breaks because – (1) glass suddenly expands (2) glass suddenly contracts (3) water evaporates (4) glass reacts chemically with water

Description : When hot-water is sprinkled on a hotter glass tumbler, it breaks because – (1) glass suddenly expands (2) glass suddenly contracts (3) water evaporates (4) glass reacts chemically with water

Last Answer : (2) glass suddenly contracts Explanation: If the poured liquid is relatively hotter or colder in comparison to the tumbler, it will break. When hot water is poured into a tumbler there is an uneven increase in the thermal expansion of the walls of the vessel.

When hot-water is sprinkled on a hotter glass tumbler, it breaks because (1) glass suddenly expands (2) glass suddenly contracts (3) water evaporates (4) glass reacts chemically with water

Description : When hot-water is sprinkled on a hotter glass tumbler, it breaks because (1) glass suddenly expands (2) glass suddenly contracts (3) water evaporates (4) glass reacts chemically with water

Last Answer : glass suddenly contracts

Why does a corked bottle filled with water burst if left out on a frosty night?

Description : Why does a corked bottle filled with water burst if left out on a frosty night?

Last Answer : Answer: Because of low temperature the water inside the bottle freezes. On freezing it expands, thereby its volume increases and pressure is exerted on the walls.

Why water pipes burst in a cold country ?

Description : Why water pipes burst in a cold country ?

Last Answer : Water pipes rupture in cold countries because: When water freezes and freezes in cold countries, there are many difficulties to increase its volume. As the ice melts, the volume increases, so more pressure is felt on the water pipe and it breaks. This is because there is no air inside the pipe.

In cold places frost damage can be reduced in horticultural crops using these methods except a) Overhead sprinklers at night b) Green houses and shade nets c) Wind breaks placement d) Appropriate fungicide application

Description : In cold places frost damage can be reduced in horticultural crops using these methods except a) Overhead sprinklers at night b) Green houses and shade nets c) Wind breaks placement d) Appropriate fungicide application

Last Answer : b) Green houses and shade nets

When a ring of metal is heated what happens to its hole? (1) expands (2) contracts (3) it expands or contracts according to its diameter (4) it expands or contracts according to its coefficient of expansion

Description : When a ring of metal is heated what happens to its hole? (1) expands (2) contracts (3) it expands or contracts according to its diameter (4) it expands or contracts according to its coefficient of expansion

Last Answer : (1) expands Explanation: The hole size will increase because in expansion the size between two molecules, do not increase so when the molecules on the outer edge move outward. Due to expansion, the ... expansion is the tendency of matter to change in volume in response to a change in temperature.

When a ring of metal is heated what happens to its hole ? (1) expands (2) contracts (3) it expands or contracts according to its diameter (4) it expands or contracts according to its coefficient of expansion

Description : When a ring of metal is heated what happens to its hole ? (1) expands (2) contracts (3) it expands or contracts according to its diameter (4) it expands or contracts according to its coefficient of expansion

Last Answer : expands

Plants are killed in winter by frost because (a) No photosynthesis occurs at low temperature (b) Of desiccation (c) Water in the plants freezes (d) Water in the plants evaporates

Description : Plants are killed in winter by frost because (a) No photosynthesis occurs at low temperature (b) Of desiccation (c) Water in the plants freezes (d) Water in the plants evaporates

Last Answer : Ans:(b)

Why do water pipes burst in severe cold winters?

Description : Why do water pipes burst in severe cold winters?

Last Answer : Ans: Water freezes in pipes during winters, when the temperature goes below 0 degree Celsius (i.e., freezing point of water). It expands and in the process exerts pressure on the water pipes, thereby sometimes bursting them.

(3) prevents freezing of petrol Explanation: Ethylene glycol (IUPAC name: ethane-1,2-diol) is an organic compound widely used as an automotive antifreeze and a precursor to polymers. In its pure form, it is an odorless, colourless, syrupy, sweettasting liquid. Ethylene glycol is toxic, and ingestion can result in death. Due to its low freezing point ethylene glycol resists freezing. A mixture of 60% ethylene glycol and 40% water freezes at -45 degree C (- 49 degree F).

Description : (3) prevents freezing of petrol Explanation: Ethylene glycol (IUPAC name: ethane-1,2-diol) is an organic compound widely used as an automotive antifreeze and a precursor to polymers. In its pure form, it is ... A mixture of 60% ethylene glycol and 40% water freezes at -45 degree C (- 49 degree F).

Last Answer : Rust is - (1) A mixture of Fe₂O₃ and Fe(OH) ₂ (2) A mixture of FeO and Fe(OH)₂ (3) FeO only (4) A mixture of Fe₂O₃, 3H₂O and FeO

Water expands when it freezes. Ice takes up more space than water. Where do I find the formula?

Description : Water expands when it freezes. Ice takes up more space than water. Where do I find the formula?

Last Answer : answer:If it’s not homework, use your common sense. Leave an inch or so unfilled. Less is more initially, so freeze the first batch with slightly less than seems safe and observe the results. Remember your experiences with the ice tray and how the cubes expand.

What area around it so has a high concentration of sodium ions are the result the cell membrane expands and burst which problem was the cell most likely having?

Description : What area around it so has a high concentration of sodium ions are the result the cell membrane expands and burst which problem was the cell most likely having?

Last Answer : What is the answer ?

If water contracts on freezing, which of the following would happen? (a) Icebergs will completely float on the surface of water (b) Ice would become more dense (c) Lakes would freeze from top to bottom (d) Rocks will crack due to freezing of internal water

Description : If water contracts on freezing, which of the following would happen? (a) Icebergs will completely float on the surface of water (b) Ice would become more dense (c) Lakes would freeze from top to bottom (d) Rocks will crack due to freezing of internal water

Last Answer : Ans:(b)

Water on heating from 1 to 4°C (A) Contracts (B) Expands (C) Has same volume (D) May contract or expand

Description : Water on heating from 1 to 4°C (A) Contracts (B) Expands (C) Has same volume (D) May contract or expand

Last Answer : (A) Contracts

As water solidifies it does one of the following: w) gives off heat and contracts x) gives off heat and expands y) takes in heat and contracts z) takes in heat and expands

Description : As water solidifies it does one of the following: w) gives off heat and contracts x) gives off heat and expands y) takes in heat and contracts z) takes in heat and expands

Last Answer :  ANSWER: X -- GIVES OFF HEAT AND EXPANDS

The length of a liquid stream while flowing over a weir __________ at the ends of the sill. (A) Expands (B) Does not change (C) Contracts (D) None of these

Description : The length of a liquid stream while flowing over a weir __________ at the ends of the sill. (A) Expands (B) Does not change (C) Contracts (D) None of these

Last Answer : Answer: Option C

Pick up the correct statement from the following: (A) The rise of the ground surface due to frost action is called frost heave (B) The freezing of water is accompanied by a volume increase of 9% (C) Below freezing point, higher soil suction develops (D) All the above

Description : Pick up the correct statement from the following: (A) The rise of the ground surface due to frost action is called frost heave (B) The freezing of water is accompanied by a volume increase of 9% (C) Below freezing point, higher soil suction develops (D) All the above

Last Answer : (D) All the above

In what frost does a bottle of **** burst?

Description : When it's at -5 degrees it breaks?

Last Answer : According to the solidification temperature of the given beer !! - depending on the alcohol content, eg ... Some beers solidify at -5 ° C, others do not. (headbang)

How long does it take for pipes to freeze and burst?

Description : How long does it take for pipes to freeze and burst?

Last Answer : I would say it takes hours with no heating when the temperature is below -15...I believe 48 hours would be enough, especially if your house is not well insulated. It is always important to ... also essential to avoid this kind of thing. Experience from living in -35 temperatures + plumber friend

Safety aside, for which of the following reasons is alcohol used in preference to mercury in a minimum thermometer? w) Alcohol has a higher boiling point x) Alcohol has a lower freezing point y) Alcohol contracts more uniformly z) Alcohol can be dyed for visibility

Description : Safety aside, for which of the following reasons is alcohol used in preference to mercury in a minimum thermometer? w) Alcohol has a higher boiling point x) Alcohol has a lower freezing point y) Alcohol contracts more uniformly z) Alcohol can be dyed for visibility

Last Answer : ANSWER: X -- ALCOHOL HAS A LOWER FREEZING POINT

The increased cohesiveness of concrete, makes it (A) Less liable to segregation (B) More liable to segregation (C) More liable to bleeding (D) More liable for surface scaling in frosty weather

Description : The increased cohesiveness of concrete, makes it (A) Less liable to segregation (B) More liable to segregation (C) More liable to bleeding (D) More liable for surface scaling in frosty weather

Last Answer : Answer: Option A

(i) Suggest the relevant method of water-proofing used for following construction. 1) Basement of buildings. 2) Swimming pool. 3) Water tank. (ii) Suggest the relevant method of transportation of concrete used for construction in following situation. 1) Concreting in hilly areas. 2) Concreting of high-rise building. 3) Concreting under water.

Description : (i) Suggest the relevant method of water-proofing used for following construction. 1) Basement of buildings. 2) Swimming pool. 3) Water tank. (ii) Suggest the relevant method of transportation of ... 1) Concreting in hilly areas. 2) Concreting of high-rise building. 3) Concreting under water.

Last Answer : Method of water-proofing for: 1) Basement of buildings: Waterproofing by using waterproof sealants. 2) Swimming pool: Waterproofing by spraying or grouting in cracks. 3) Water tank: Waterproofing by ... , concrete pump, slip form technique. 3) Concreting under water: Tremie pipe, grout pipe.

Is it true if you let air out of a bicycle tire the valve becomes cold. This is because when a gas under pressure expands it releases energy to the environment?

Description : Is it true if you let air out of a bicycle tire the valve becomes cold. This is because when a gas under pressure expands it releases energy to the environment?

Last Answer : Feel Free to Answer

Plants are dried up in winter due to frost because – (1) Evaporation does not take place (2) Photosynthesis does not take place at such low temperature (3) Respiration does not take place at low temperature (4) There is mechanical loss of tissues and drought condition prevails

Description : Plants are dried up in winter due to frost because – (1) Evaporation does not take place (2) Photosynthesis does not take place at such low temperature (3) Respiration does not take place at low temperature (4) There is mechanical loss of tissues and drought condition prevails

Last Answer : (4) There is mechanical loss of tissues and drought condition prevails Explanation: Respiration does not rely on the sun, so it is possible for plants to respire around the clock. The rate of respiration ... drought in that frozen water is unavailable to the plant. The air is very dry as well.

Plants are dried up in winter due to frost because (1) Evaporation does not take place (2) Photosynthesis does not take place at such low temperature (3) Respiration does not take place at low temperature (4) There is mechanical loss of tissues and drought condition prevails

Description : Plants are dried up in winter due to frost because (1) Evaporation does not take place (2) Photosynthesis does not take place at such low temperature (3) Respiration does not take place at low temperature (4) There is mechanical loss of tissues and drought condition prevails

Last Answer : There is mechanical loss of tissues and drought condition prevails

When hot liquid is poured into a thick glass tumbler, it cracks because glass – (1) is a bad conductor of heat so only inner surface expands (2) has high temperature coefficient of expansion (3) has a very low specific heat (4) has low temperature coefficient of expansion

Description : When hot liquid is poured into a thick glass tumbler, it cracks because glass – (1) is a bad conductor of heat so only inner surface expands (2) has high temperature coefficient of expansion (3) has a very low specific heat (4) has low temperature coefficient of expansion

Last Answer : (1) is a bad conductor of heat so only inner surface expands Explanation: When hot liquid is poured into a thick glass tumbler, it cracks because glass is a bad conductor of heat so only inner surface expands.

When hot liquid is poured into a thick glass tumbler, it cracks because glass : (1) is a bad conductor of heat so only inner surface expands (2) has high temperature coefficient of expansion (3) has a very low specific heat (4) has low temperature coefficient of expansion

Description : When hot liquid is poured into a thick glass tumbler, it cracks because glass : (1) is a bad conductor of heat so only inner surface expands (2) has high temperature coefficient of expansion (3) has a very low specific heat (4) has low temperature coefficient of expansion

Last Answer :  is a bad conductor of heat so only inner surface expands 

Where are railways developed in hilly areas and why? Trace their history in the colonial period. -Geography

Description : Where are railways developed in hilly areas and why? Trace their history in the colonial period. -Geography

Last Answer : Railway tracts are laid through low hills, gaps or tunnels in the hilly terrains of peninsular region. In the places such as Himalayan regions, it is not favourable to construct railway lines. ... west coast has facilitated the movement of passengers and goods in this most economic region of India.

What steps can be taken to control soil erosion in hilly areas? -Geography

Description : What steps can be taken to control soil erosion in hilly areas? -Geography

Last Answer : The methods of soil conservation in hilly regions are : (i) Plowing along the contour lines decreases the speed of water low down the slopes. (ii) terrace cultivation on slopes decreases ... shelterbelts have led to the stabilization of sand dunes and in stabilizing the desert in western India.

Answer the following questions in about 30 words. What steps can be taken to control soil erosion in the hilly areas ? -SST 10th

Description : Answer the following questions in about 30 words. What steps can be taken to control soil erosion in the hilly areas ? -SST 10th

Last Answer : In the hilly areas soil erosion can be controlled by 1. Ploughing across contour lines can slow down the water flow in the slopes. This is known as Contour ploughing. 2. Making use of terrace ... of grass to check erosion by wind and water. This divides the wind force and causes less damage.

What steps can be taken to control soil erosion in hilly areas? -SST 10th

Description : What steps can be taken to control soil erosion in hilly areas? -SST 10th

Last Answer : (i) Ploughing along the contour lines can decelerate the flow of water down the slopes. This is contour ploughing. (ii) Steps can be cut out on the slopes maping terraces. Terrace cultivation ... erosion. Large fields are divided into strips and strips of grass are left to grow between the crops.

What steps can be taken to control soil erosion in hilly areas? -SST 10th

Description : What steps can be taken to control soil erosion in hilly areas? -SST 10th

Last Answer : Methods of soil conservation: (i) Contour ploughing or ploughing along the contour lines of a highland can decelerate the flow of water down the slopes. (ii) Terrace cultivation or cutting of steps ... . (iv) Afforestation or planting of trees in the hilly regions can help in soil conservation.

What earthing is done in hilly areas ?

Description : What earthing is done in hilly areas ?

Last Answer : Sheet earthing is done in hilly areas. Shit electrodes are placed by digging trenches on the slopes of the hill.

How many hilly areas in Bangladesh ?

Last Answer : 10 percent hilly areas of Bangladesh.

The National Forest Policy of India has recommended ____ percent forest cover for hilly areas.

Description : The National Forest Policy of India has recommended ____ percent forest cover for hilly areas.

Last Answer : The National Forest Policy of India has recommended ____ percent forest cover for hilly areas. A. 67 B. 33 C. 19.4 D. 30

Which of the following are true with respect to Indian Railways? 1. It is the larqest public sector undertaking 2. Indian Railway network is the fourth largest in the world 3. Factories at Kapurthala and Perarnbur manufacture passenger coaches 4. The narrow guage lines are confined to the hilly areas only (a) I, II and III (b) I and II (c) II, III and IV (d) I, II, III and IV

Description : Which of the following are true with respect to Indian Railways? 1. It is the larqest public sector undertaking 2. Indian Railway network is the fourth largest in the world 3. Factories at Kapurthala and Perarnbur manufacture passenger ... III (b) I and II (c) II, III and IV (d) I, II, III and IV

Last Answer : Ans: (d)

Which of the gauges is used in the hilly areas? A. Narrow Gauge B. Meter Gauge C. Broad Gauge D. Special Gauge

Description : Which of the gauges is used in the hilly areas? A. Narrow Gauge B. Meter Gauge C. Broad Gauge D. Special Gauge

Last Answer : A [Narrow Gauge] Explanation: Narrow gauge is used in the hilly areas.

The drop man holes are generally provided in sewers for A. Industrial areas B. Large town ships C. Hilly town ships D. Cities in plains

Description : The drop man holes are generally provided in sewers for A. Industrial areas B. Large town ships C. Hilly town ships D. Cities in plains

Last Answer : ANS: C

What is the main natural cause of disruption of roads in hilly areas

Description : What is the main natural cause of disruption of roads in hilly areas

Last Answer : landslide

Goitre is common in hilly areas.

Description : Goitre is common in hilly areas.

Last Answer : Ans: Goitre is common in hilly areas because there is deficiency of Iodine in the water.

Virus free seeds of potato are produced in a. Hilly areas b. Spring crop c. In plains d. Autumn crop

Description : Virus free seeds of potato are produced in a. Hilly areas b. Spring crop c. In plains d. Autumn crop

Last Answer : Hilly areas

Which one is a major environmental and safety hazard for the people in hilly areas in Tripura which can be considered as “cancer of hill slopes” a) Flood (b) Landslide (c) Earthquake (d) Desertification

Description : Which one is a major environmental and safety hazard for the people in hilly areas in Tripura which can be considered as “cancer of hill slopes” a) Flood (b) Landslide (c) Earthquake (d) Desertification

Last Answer : (b) Landslide

Intersection method of detailed plotting is most suitable for (A) Forests (B) Urban areas (C) Hilly areas (D) Plains

Description : Intersection method of detailed plotting is most suitable for (A) Forests (B) Urban areas (C) Hilly areas (D) Plains

Last Answer : (C) Hilly areas