Tag: life is precious

Questions Related to life is precious

To avoid electric shock people should wear .......... footwear while working with electric circuits. 

evs life is precious road safety and pollution personal health care disaster

  1. Leather

  2. Rubber

  3. Plastic

  4. None of the above

Show answer
Correct Option: B
Explanation:

Electricity is a produced by the continuous flow of charge. It requires medium to flow from one body to another. The substance through which it can pass are known as conductors and the substance through which it cannot pass are known as insulators. Water is good conductor while rubber is a bad conductor of electricity.

In order to avoid the electric shock, rubber slippers should be used as it is a good insulator.
So, the correct answer is option B.

Wearing helmet is the precautionary measures to avoid electric shock.

evs life is precious road safety and pollution personal health care disaster

  1. True

  2. False

Show answer
Correct Option: B
Explanation:

Electricity is a produced by the continuous flow of charge. It requires medium to flow from one body to another. The substance through which it can pass are known as conductors and the substance through which it cannot pass are known as insulators. Water is good conductor while wood is a bad conductor of electricity. Wearing helmet is not precautionary measures to avoid electric shock as the helmet is made up of metal which is a good conductor of electricity.

Which of the following is/are traffic rules for kids?

evs life is precious road safety and pollution personal health care disaster

  1. Always walk on the footpath

  2. Use Zebra crossing

  3. Never stick out hand of a moving vehicle

  4. All of the above

Show answer
Correct Option: D

What does a red traffic light signify?

evs life is precious road safety and pollution personal health care disaster

  1. Stop

  2. Move fast

  3. Slow down

  4. None of the above

Show answer
Correct Option: A
Explanation:

Traffic Signals. 

RED—A red signal light means STOP. 

Erythroblastosis foetalis is a disease in which

evs life is precious road safety and pollution personal health care disaster

  1. adult has severe anaemia and jaundice

  2. foetus do not survive due to erythrocyte blast

  3. foetus is suffering from blood cancer

  4. foetus has severe anaemia and jaundice

Show answer
Correct Option: D
Explanation:
Erythroblastosis fetalis is a condition which arises when a female is rhesus negative and the mail is Rh positive.
It causes the death of the foetus within the womb or just after birth.
The child from such a couple inherits the Rh positive trait from the father. 
The Rh-positive red blood corpuscles of a foetus in the womb enter the blood of the mother where the development of Rh antibodies takes place as the mother's blood is rhesus negative it causes more harm to her. 
These antibodies along with the mother's blood on reaching the fetal circulation cause the clamping of fetal RBC. The first child is born normal because by that time the number of antibodies in mothers that remain lesser but they increase with successive pregnancy
So, the correct option is 'foetus has severe anaemia and jaundice'

Read the given statements and select the correct option. 


Statement  1: Traffic jams are likely to cause giddiness, exhaustion, reduced vision, etc.
Statement 2: Carbon monoxide from vehicles causes these problems by reducing $ { O } _{ 2 } $ -carrying capacity of hemoglobin.

business organisation and correspondence life is precious road safety and pollution pollution of natural resources air pollution and its effects

  1. Both statements 1 and 2 are correct.

  2. Statement 1 is correct but statement 2 is incorrect.

  3. Statement 1 is incorrect bu statements 2 is correct.

  4. Both statements 1 and 2 are incorrect.

Show answer
Correct Option: A
Explanation:

50% of Carbon monoxide emissions are from automobiles. Normally CO has a brief residence in atmosphere and gets oxidized to co2. However, in congested and closed areas if proves quite harmful. Carbon monoxide combines with haemoglobin, produces carboxyhaemoglobin or COHb. At 50 ppm, CO converts 7.5% of haemoglobin into carboxyhemoglobin within 8 hours. It impairs oxygen transport resulting in giddiness, headache, decreased vision, cardiovascular malfunction, and asphyxia.

So, the correct answer is 'Both statements 1 and 2 are correct'

Among the following which one causes more indoor chemical pollution?

evs - i life is precious road safety and pollution pollution of natural resources air pollution and its effects

  1. Burning coal

  2. Burning cooking gas

  3. Burning mosquito coil

  4. Room spray

Show answer
Correct Option: A
Explanation:
Among the given four options, both burning of coal and burning of mosquito coil will cause chemical pollution, but burning of coal will cause more pollution. The main ingredient in mosquito coils is pyrethrum C (a natural extract from the Chrysanthemum flower). At high doses, it is responsible for various respiratory disorders. The coal leads to release of a wide array of air pollutants $ \left( { CO } _{ x }{ SO } _{ x }{ NO } _{ x }\quad etc. \right) . $ Among these, CO is very dangerous, it interfer with breathing process. People are generally advised not to sleep with coal burning in the closed room.
So, the correct answer is 'Burning coal'.

All of the following is the method to control air pollution except

business organisation and correspondence life is precious road safety and pollution pollution of natural resources air pollution and its effects

  1. Use of CNG gas

  2. Use of LPG gas

  3. Aforestation

  4. Use of cycle

Show answer
Correct Option: B
Explanation:

The domestic cooking gas cylinder contains Liquid petroleum gas.
  • Its composition is propane or butane or a mixture of both, are flammable mixtures of hydrocarbon gases used as fuel in heating appliances, cooking equipment, and vehicles.
  • Use of LPG is not a method to control air pollution because Inhaling of LPG vapour can cause irritation in nose and throat, headache and nausea, vomiting, dizziness and loss of consciousness.
  • Hence Use of LPG gas is not a method to control air pollution.
  • So, the correct answer is 'Use of LPG gas'.

Asthma can be caused by

business organisation and correspondence life is precious road safety and pollution pollution of natural resources air pollution and its effects

  1. Water pollution

  2. Soil erosion

  3. Air pollution

  4. Thermal pollution

Show answer
Correct Option: C
Explanation:
  • Asthma is a condition in which a person's airways become inflamed, narrow and swell and produce extra mucus, which makes it difficult to breathe.
  • The symptoms of asthma often present in periodic attacks or episodes of tightness in the chest, wheezing, breathlessness, and coughing.
  • Asthma is caused by many reasons such as air pollution, smoking, dust, pets, chemicals, and genetic reasons. Allergins present in the polluted air causes an inflammatory reaction is airways which leads to asthma.
  • Hence Asthma can be caused by air pollution.
  • So, the correct answer is 'Air pollution'.

In metropolitan cities, the automobiles cause air pollution.

evs - i life is precious road safety and pollution pollution of natural resources air pollution and its effects

  1. $80\%$

  2. $60\%$

  3. $50\%$

  4. $100\%$

Show answer
Correct Option: A
Explanation:

Most of the automobiles have an environmental impact up to 80 to 90 percent., It is due to fuel consumption and emissions of air pollution and greenhouse gases that are said to drive global warming.

So, the correct option is '80%'.