Q:

Permanent Hardness of water can be removed by adding

A) Bleaching powder	B) Chlorine
C) Wasshing soda	D) Potassium permanganate

Answer & Explanation Answer: C) Wasshing soda

Explanation:

Hardness can be removed by adding sodium carbonate (washing soda) or by passing the water through an ion-exchange column.

Hardness in water is caused by dissolved magnesium ions and calcium ions. These can get into the water when it comes into contact with limestone and other rocks that contain calcium compounds. This can happen, for example, when rainwater flows over these rocks on its way to a reservoir.

Hardness in water is of two types. They are :

1. Temporary hardness

2. Permanent hardness

1. Temporary hardness:: Temporary hardness is caused by dissolved calcium hydrogen carbonate.

2. Permanent hardness:: Permanent hardness is caused by dissolved calcium sulfate. Unlike temporary hardness, it is not removed by boiling the water.

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Q:

What is page cannibalizing?

Answer

Page swapping or page replacements are called page cannibalizing.

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Subject: Operating Systems

37 22762

Q:

Against which team did Virender Sehwag make his one day international debut

A) New Zealand	B) Sri lanka
C) Pakistan	D) South Africa

Answer & Explanation Answer: C) Pakistan

Explanation:

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Filed Under: Sports

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Q:

Which of the statements given below are correct?

A) Garbine Muguruza won the Tennis 2017 French Open Women's Singles.

B) Rafael Nadal won the Tennis 2017 US Open Men's Singles.

C) Valtteri Bottas won the Formula One 2017 Brazilian Grand Prix.

A) Only A	B) Only B
C) Only C	D) Both A and B

Answer & Explanation Answer: B) Only B

Explanation:

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Filed Under: Sports
Exam Prep: Bank Exams

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Q:

Which of the statements given below are correct?

1. The author of the novel 'Fellside' is Victor LaValle.
2. The author of the novel 'A Head Full of Ghosts' is M.R Carey.
3. The author of the novel 'Brave New World' is Aldous Huxley.

A) 1 and 2	B) 2 and 3
C) 1 and 3	D) 1, 2 and 3

Answer & Explanation Answer: A) 1 and 2

Explanation:

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Filed Under: Books and Authors
Exam Prep: Bank Exams

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Q:

Who founded in Pataliputra

A) Udayin	B) Ashoka
C) Bimbisar	D) Mahapadmananda

Answer & Explanation Answer: A) Udayin

Explanation:

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Filed Under: Indian History

66 22646

Q:

Join Our Whatsapp Group For Competitive Exams - Sawaal

Answer

In this Whatsapp group for competitive exams, you can get daily updates about Aptitude, Reasoning, General Knowledge, Current Affairs, Puzzles, Certfications, Interviews, Exams Schedules, etc... In addition you can ask your questions to get answers with tricks and tips.

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Join our Best General Knowledge (GK) Whatsapp Group here.

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Subject: General Awareness Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: Software Architect , Project Manager , Network Engineer , IT Trainer , Database Administration , Bank PO , Bank Clerk , Analyst

164 22641

Q:

Bhutan’s national language is known as ___________.

A) Dzongkha	B) Khengkha
C) Tshanglakha	D) Lhotshamkha

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