INSIGHT UPSC QUIZ

 Some countries now use alcohol as an additive in petrol. In context of this, consider the following statements: 

1. Addition of alcohol increases the burning efficiency of petrol and reduces knocking.

2. Petrol added with small quantities of alcohol becomes more stable and doesn’t become too hot in warm areas or too cold in freezing temperatures.

3. Alcohol is a cleaner fuel which gives rise to only carbon dioxide and water on burning in sufficient oxygen.

Which of the statements given above is the correct reason for using alcohol as an additive in petrol?

With reference to Pisces – a category of animals, consider the following statements: 

1. Their skin is covered with scales and it has mucus glands on their skin. 

2. They are aquatic animals that obtain oxygen dissolved in water by using gills.

3. Unlike humans, they are cold-blooded and have only three chambers in their heart. 

Which of the statement(s) given above is/are correct?

Unicellular organism are unique because they are made up of a single cell only. Which of the following is/are examples of unicellular organisms?

1. Amoeba

2. Yeast

3. Bacteria

Select the correct answer using the code given below:

 In context of General Science, consider the following statements:

1. All fluids exert pressure on the base and walls of the container in which they are enclosed.

2. All objects experience a downward force of buoyancy when they are immersed in a fluid.

3. The magnitude of buoyancy force is independent of the density of the fluid in which the object is immersed.

Which of the statement(s) given above is/are correct?

 Compass is an important tool used for navigation since old days. In this context, consider the following statements:

1. The compass needle is a magnet which align itself in a particular direction.

2. The compass needle always points towards the magnetic south pole of the earth.

Which of the statement(s) given above is/are correct?

Consider the following statements:

1. The e-Gopala App is a comprehensive breed improvement marketplace and information portal, directly used by farmers. 

2. Web version of e-GOPALA has been developed by the Union Ministry of Fisheries, Animal Husbandry and Dairying.

Which of the statement(s) given above is/are correct?

 In context of Air pollution in India, consider the following statements:

1. Presence of high levels of pollutants in air causes visibility to be lowered.

2. Formation of smog is a visible indication of air pollution.

3. Oxides of nitrogen and sulphur dissolve in rain to give rise to acid rain.

Which of the statement(s) given above is/are correct?

The presence of certain minerals is essential in water, however, if found in excess they can be harmful to our body. In this context, which of the following statements are correct?

1. Deficiency of fluoride in drinking water causes diseases such as tooth decay.

2. Excessive sulphate in drinking water causes laxative effect.

3. Excess lead in drinking water can cause disease such as ‘blue baby’ syndrome.

Select the correct answer using the code given below.

 Consider the following statements:

1.  Large air cavities are present underneath the skin of aquatic plants that help them in floating.

2. Chlorophyll is present underneath the skin of terrestrial plants and it helps them in manufacturing food.

Which of the statement(s) given above is/are NOT correct?

Read the following statements carefully and select the correct answer from the code given below:

1. Dugong (Dugong dugon) is an herbivorous mammal.

2. Dugongs are listed as Critically endangered on the IUCN Red List of Threatened Species.

3. Recently, an announcement was made by Tamil Nadu State government for the set-up of Dugong conservation reserve. 

Which of the statements given above is/are correct?