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- Question
When hot water is placed into an empty water bottle, the bottle keeps its shape and does not soften. What type of plastic is the water bottle made from?
Options- A. Thermoplastic
- B. PVC
- C. Polyurethane
- D. Thermosetting
- Correct Answer
- Thermosetting
ExplanationThermoset, or thermosetting, plastics are synthetic materials that strengthen during being heated, but cannot be successfully remouldedor reheated after their initial heat-forming. This contrasts withthermoplastics, which soften when heated and harden and strengthen after cooling. Thermoplastics can be heated, shaped and cooled as often as necessary without causing a chemical change, while thermosetting plastics will burn when heated after the initial moulding.
- 1. Which one of the following States of India is not covered by Food Forecasting Stations set up by the Central Water Commission?
Options- A. Rajasthan
- B. Jammu and Kashmir
- C. Tripura
- D. Himachal Pradesh Discuss
- 2. Which of the following planets of our solar system has least mass?
Options- A. Neptune
- B. Jupiter
- C. Mars
- D. Mercury Discuss
- 3. Which one among the following stars is nearest to the earth?
Options- A. Sirius
- B. Arcturus
- C. Spica
- D. Proxima Centauri Discuss
- 4. The phenomena of raising the outer edge of the curved roads above the inner edge to provide necessary centripetal force to the vehicles to take a safe turn is called _____.
Options- A. banking of roads
- B. cornering of roads
- C. elevation of roads
- D. tempering of roads Discuss
- 5. Marble comes under which category of rocks?
Options- A. Sedimentary
- B. Igneous
- C. Metamorphic
- D. None of these Discuss
- 6. Green House Effect' means
Options- A. Pollution in houses in tropical region
- B. Prevention of ultraviolet radiation by the ozone layer
- C. Trapping of solar energy due to atmospheric gases
- D. Damage to green painted buildings Discuss
- 7. Statement I : By far the most common topographic form in a Karst terrain is the sinkhole. Statement II : Topographically, a sinkhole is a depression that varies in depth from less than a meter to few hundred meters.
Options- A. Both the statements are individually true and Statement II is the correct explanation of Statement I
- B. Both the statements are individually true but Statement II is not the correct explanation of Statement I
- C. Statement I is true but Statement II is false
- D. Statement I is false but Statement II is true Discuss
- 8. Statement I : Incised meanders are formed in the mature stage of a river. Statement II : Incised meanders are characterized by rejuvenation and upliftment of land.
Options- A. Both the statements are individually true and Statement II is the correct explanation of Statement I
- B. Both the statements are individually true but Statement II is not the correct explanation of Statement I
- C. Statement I is true but Statement II is false
- D. Statement I is false but Statement II is true Discuss
- 9. Statement I : Portions of glacial troughs may exhibit remarkably flat floors. Statement II : The flat floor in a glacial trough is produced by uniform glacial erosion.
Options- A. Both the statements are individually true and Statement II is the correct explanation of Statement I
- B. Both the statements are individually true but Statement II is not the correct explanation of Statement I
- C. Statement I is true but Statement II is false
- D. Statement I is false but Statement II is true Discuss
- 10. Statement I : Tides are the rise and fall of sea levels caused by the combined effects of the gravitationed forces exerted by the Moon and the Sun and the rotation of the Earth. Statement II : The Earth rotates from west to east.
Options- A. Both the statements are individually true and Statement II is the correct explanation of Statement I
- B. Both the statements are individually true but Statement II is not the correct explanation of Statement I
- C. Statement I is true but Statement II is false
- D. Statement I is false but Statement II is true Discuss
General Science problems
Search Results
Correct Answer: Himachal Pradesh
Explanation:
Presently, there are 226 flood forecasting stations consisting of 166 level forecasting stations for villages and towns and 60 inflow forecasting stations for reservoirs/dams/barrages in the country. Existing flood forecasting network covers 22 States / Union Territories and 19 major river basins / sub-basins in the country.
Correct Answer: Mercury
Explanation:
Correct Answer: Proxima Centauri
Explanation:
Proxima Centauri is the nearest star, and on August 24, 2016 astronomers announced it likely has a planet. This star is the nearest of a triple star system, which we on Earth see with the eye alone as the single star Alpha Centauri, visible from Earth's Southern Hemisphere
Correct Answer: banking of roads
Correct Answer: Metamorphic
Correct Answer: Trapping of solar energy due to atmospheric gases
Correct Answer: Both the statements are individually true but Statement II is not the correct explanation of Statement I
Explanation:
A sinkhole (in Karst topography) is a hole in the ground that forms when water dissolves surface rock. Often, this surface rock is limestone, which is easily eroded, or worn away, by the movement of water.
Formation of a Sinkhole: In a landscape where limestone sits underneath the soil, water from rainfall collects in cracks in the stone. These cracks are called joints. Slowly, as the limestone dissolves and is carried away, the joints widen until the ground above them becomes unstable and collapses. The collapse often happens very suddenly and without very much warning. Water collects in these collapsed sections, forming sinkholes.
Sinkholes also form when the roofs of caves collapse. Sinkholes are often funnel-shaped, with the wide end open at the surface and the narrow end at the bottom of the pool.Sinkholes vary from shallow holes about 1 meter (3 feet) deep, to pits more than 50 meters (165 feet) deep.
Correct Answer: Statement I is false but Statement II is true
Explanation:
Rejuvenation occurs when the river?s base level falls (i.e. when sea level falls). This can be a consequence of either a fall in the amount of sea water or the land rising. Incised meanders are meanders which are particularly well developed and occur when a river?s base level has fallen giving the river a large amount of vertical erosion power, allowing it to down cut. Hence, 2nd statement is correct.
There are two types of incised meanders, entrenched meanders and ingrown meanders.As they are products of rejuvenation, they are not formed in mature stage of a river
Correct Answer: Both the statements are individually true and Statement II is the correct explanation of Statement I
Explanation:
Glaciers cut distinctive U-shaped valleys with a flat floor and steep sides. These are an example of a glacial erosion landform.
Example: As the main glacier erodes deeper into the valley, the tributary is left higher up the steep sides of the glacier.
Correct Answer: Both the statements are individually true but Statement II is not the correct explanation of Statement I
Explanation:
Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon and the Sun and the rotation of Earth.
Statement 2 is also correct. But it is not the correct explanation for the 1st statement.
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