Questions

Q:

Fax machine was invented by

A) Daimler B) Dewar
C) Bain D) None of these
 
Answer & Explanation Answer: C) Bain

Explanation:
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Filed Under: Inventions

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Q:

Which country won the ICC Champions Trophy title 2017  ?

A) Bangladesh B) India
C) Australia D) Pakistan
 
Answer & Explanation Answer: D) Pakistan

Explanation:

Pakistan saved their best for the last as they humbled arch-rivals India by a huge margin of 180 runs to win their maiden ICC Champions Trophy title. This also completed Sarfraz Ahmed’s team’s remarkable comeback, since losing their tournament opener to the same opposition.

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Filed Under: Sports
Exam Prep: AIEEE , Bank Exams , CAT

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Q:

Soil erosion can be prevented by

A) Removal of vegetation B) Overgrazing
C) Afforestation D) Increasing bird population
 
Answer & Explanation Answer: C) Afforestation

Explanation:

The four most common soil erosion prevention methods are vegetation, geotextiles, mulch, and retaining walls.

By planting grass in areas of concentrated water flow, farmers can prevent much of the soil erosion that results from runoff, as the grass stabilizes the soil while still providing an outlet for drainage.

Preventing soil erosion is critical in protecting your property and exposed soil, whether from wind, weather, running water, and even the after-effects of the forest fire.

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Filed Under: General Science
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Q:

All of the following are fat-soluble vitamins except

A) Vitamin C B) Vitamin A
C) Vitamin D D) Vitamin K
 
Answer & Explanation Answer: A) Vitamin C

Explanation:

A vitamin is an organic molecule that is an essential micronutrient that an organism needs in small quantities for the proper functioning of its metabolism.

There are 13 essential vitamins that our body need. They are categorized into 

1. Water soluble

2. Fat soluble

Water-soluble vitamins dissolve in water, which means these vitamins and nutrients dissolve quickly in the body. Unlike fat-soluble vitamins, water-soluble vitamins are carried to the body’s tissues, but the body cannot store them.

Water-soluble vitamins are Vitamin B1, B2, B3, B5, B12, B6, B7 & B9 and Vitamin C.


Fat-soluble vitamins are soluble in fats. They are absorbed by fat globules that travel through the small intestines and into the general blood circulation within the body. Unlike water-soluble vitamins, fat-soluble vitamins are stored in the body when they are not in use.

Fat-soluble vitamins are - Vitamin A, D, E and K.

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Filed Under: Biology
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Q:

The arbor vitae refers to

A) the pleatlike convolutions of the cerebellum B) cerebellar gray matter
C) flocculonodular nodes D) cerebellar white matter
 
Answer & Explanation Answer: D) cerebellar white matter

Explanation:

In the brain cerebellum, the arbor vitae refers to the cerebellar white matter which resembles the structure of arborvitae plant leaves and branches structure.

arbor-vitae1540288058.png image

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Filed Under: Biology

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Q:

Which of the following is not a pure substance?

A) Oxygen B) Carbon dioxide
C) Water D) Milk
 
Answer & Explanation Answer: D) Milk

Explanation:

Milk is not a pure substance since it has so many constituents that can be separated physically.

Compounds are pure substances formed from elements unlike mixtures.

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Filed Under: Chemistry
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Q:

Full-service airline Jet Airways has announced a partnership with ride-hailing app ________ to book airport cabs through the Jet Airways app itself in 2017.

A) Bookmycab B) Dot cabs
C) Meru D) Uber
 
Answer & Explanation Answer: D) Uber

Explanation:

Full-service airline Jet Airways has announced a partnership with ride-hailing app Uber to book airport cabs through the Jet Airways app itself. The airline will partner Uber and facilitate travel from the airport once a passenger has booked a ticket on the Jet Airways app.

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Filed Under: General Awareness
Exam Prep: Bank Exams , CAT
Job Role: Bank PO

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Q:

Which of the following is a secondary air pollutant?

A) Acid rain B) SO2
C) CO2 D) Dust particles
 
Answer & Explanation Answer: A) Acid rain

Explanation:

Secondary pollutants include ozone, which is formed when hydrocarbons (HC) and nitrogen oxides (NOx) combine in the presence of sunlight.

 

Whereas Primary pollutant are those pollutants that are directly emitted from their sources, like CO2, CO, SO2 as these gases are directly emitted form burning of fossil fuels.

 

Acid rain, which is formed when sulfur dioxide or nitrogen oxides react with water, sulfuric acid etc.

 

Hence, Acidrain is a secondary air pollutant.

 

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Filed Under: General Awareness
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