Tag: evs

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Questions Related to evs

Multiple choice evs food components simple test for nutrients test for nutrients protein and its function energy from different food components nutrients and foodstuffs

Choose the correct answer from the alternatives given.
If an animal needed to store energy for long-term use, but not be encumbered with the weight of extra.tissue, which is the best molecule for storage?

  1. Fructose and glucose in the form of honey

  2. High-calorie fat molecules

  3. Complex cellulose molecules

  4. Glycogen with extensive side branches of glucose
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

If an animal needed to store energy for long-term use, but not be encumbered with the weight of extra tissue, then high-calorie fat molecules are the best molecules for storage. So, the correct answer is "high-calorie fat molecules".

Multiple choice evs food for health simple test for nutrients test for nutrients protein and its function nutrients and foodstuffs

Oil is obtained from the plant and animal sources can be detected by 

  1. Oil paper test

  2. Starch

  3. Calcium sulphate solution

  4. Iodine solution
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Some plants and animal produce oil. Oil paper test is a test used to detect oil in plant and animal products. It include a process in which a paper is moved back and forth few times against the substance and the presence of oil on the paper is checked.
So the correct answer is 'Oil paper test'.
Multiple choice evs food for health simple test for nutrients test for nutrients protein and its function nutrients and foodstuffs

Which of the following helps in nutrient conservation?

  1. Leaching

  2. Mineralisation

  3. Nitrification

  4. Immobilisation
Reveal answer Fill a bubble to check yourself
B,C Correct answer
Explanation

A.Leaching - the loss of water-soluble plant nutrients from the soil. It does not help in nutrient conservation.

B.Mineralisation – The process of formation of minerals from the organic compounds is called mineralisation. It helps in nutrient conservation.

C.Nitrification – Formation of nitrites or nitrates from ammonia or nitrogenous compounds is called Nitrification. It also helps in nutrient conservation.

D. Immobilisation – elements, cannot be transported from one place to another place in the body is called Immobilisation and the elements are called Immobilised elements.

So, the correct option is ‘Mineralisation or Nitrification’. 

Multiple choice evs what if it finishes? lpg, cng treasures from the earth fuel and conservation

Kerosene has a lower ignition temperature than diesel.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A fuel with lowest ignition temperature means, it catches fire easily and is called highly inflammable. Kerosene has lower ignition temperature than diesel. This means kerosene will start to catch fire faster than diesel.

Multiple choice evs how to save fuel lpg, cng treasures from the earth fuel and conservation

The characteristics of a good fuel are:

  1. it should release more energy

  2. it should be safe

  3. it should be easily transportable

  4. all of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The characteristics of a good fuel are near to the characteristics of an ideal fuel, as there can not exist an ideal fuel in nature.
It should release more energy,  it should be safe,  it should be easily transported, readily available,  should not cause pollution on combustion etc.

Multiple choice evs how to save fuel lpg, cng treasures from the earth fuel and conservation

The full form of C.N.G is:

  1. Compound Natural Gas

  2. Complex Natural Gas

  3. Compound New Gas

  4. Compressed Natural Gas
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

CNG is made by compressing natural gas (which is mainly composed of methane, CH4), to less than 1 percent of the volume, it occupies at standard atmospheric pressure. It is stored and distributed in hard containers at a pressure of 2025 MPa (2,9003,600 psi), usually in cylindrical or spherical shapes. Thus it is also called Compressed natural gas (CNG) (Methane stored at high pressure).

Multiple choice evs how to save fuel lpg, cng treasures from the earth fuel and conservation

Spark plugs are not necessary in a diesel engine because 

  1. compression of the gases heat them above the ignition temperature of the fuel

  2. diesel is more volatile than petrol

  3. there is deposition of carbon in the spark plug which is difficult to remove

  4. diesel is easily ignited
Reveal answer Fill a bubble to check yourself
C Correct answer
Multiple choice evs how to save fuel lpg, cng treasures from the earth fuel and conservation

What is the full form of PNG?

  1. Petrol Natural Gas

  2. Piped Natural Gas

  3. Pressurise Natural Gas

  4. Pure Natural Gas
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Piped Natural Gas is abbreviated as PNG. Piped Natural gas (PNG) is used for domestic, commercial and industrial consumption. PNG has several distinctions to its credit of being a pollution free fuel, economical and safer fuel.