Questions

Q:

Which one of the following is not a true fish?

A) Silver fish B) Saw fish
C) Hammer fish D) Sucker fish
 
Answer & Explanation Answer: D) Sucker fish

Explanation:
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Filed Under: Animals and Birds

275 21447
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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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams
Job Role: Analyst , Bank Clerk , Bank PO

25 21444
Q:

Which word or words explains the meaning of the following idioms:-

To flog a dead horse

A) To act in a foolish way B) To waste one’s efforts
C) To revive interest in an old subject D) To revive old memories
 
Answer & Explanation Answer: B) To waste one’s efforts

Explanation:

To flog a dead horse means to waste effort on something when there is no chance of succeeding.

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Filed Under: English
Exam Prep: Bank Exams

1 21438
Q:

Two Fathers and Two Sons Riddle

Two fathers and two sons sat down to eat eggs for breakfast. They ate exactly three eggs, each person had an egg. The riddle is for you to explain how

Answer

one of the 'fathers' is also a grandfather. Therefore the other father is both a son and a father to the grandson. In other words, the one father is both a son and a father.

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Subject: Math Puzzles

290 21431
Q:

Rearrange the parts of the sentence in correct order.

So, increasingly,

P-paying to provide revenues
Q-for the Central government
R-the poor have been

A) RPQ B) RQP
C) PQR D) QPR
 
Answer & Explanation Answer: A) RPQ

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

1 21421
Q:

Read the passage carefully and choose the best answer to each question out of the four alternatives.


Prebiotics are the lesser-known gut-health promoters which serve as food for good bacteria inside the gut. "We found that dietary prebiotics can improve non-REM (random eye movement) sleep, as well as REM sleep after a stressful event," said Robert Thompson, a PhD researcher at University of Colorado Boulder in the U.S. Prebiotics are dietary fibres found naturally in foods like artichokes, raw garlic, leeks and onions.

When beneficial bacteria digest prebiotic fibre, they not only multiply, improving overall gut health, but they also release metabolic by-products. Researchers fed three-week-old male rats a diet of either standard chow or chow that included prebiotics. They then monitored the rats' body temperature, gut bacteria and sleep-wake cycles — using electroencephalogram (EEG), or brain activity testing over time. Findings revealed that the rats on the prebiotic diet spent more time in non-rapid-eye-movement (NREM) sleep, which is restful and restorative, than those on the non-prebiotic diet.


How are metabolic by-products released?

A) When good bacteria help sleep B) When good bacteria digest dietary fibres
C) When gut becomes rich in nutrients D) After recovery from stress due to sleep
 
Answer & Explanation Answer: B) When good bacteria digest dietary fibres

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

0 21409
Q:

Jiling-Langlota Iron ore Block and Guali Iron ore Block, have been inaugurated in which Indian state?

 

A) Odisha B) Jharkhand
C) Bihar D) Chhattisgarh
 
Answer & Explanation Answer: A) Odisha

Explanation:
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Filed Under: Indian Geography
Exam Prep: Bank Exams

1 21401
Q:

B.C.Roy Award is given in the field of

A) Journalism B) Medicine
C) Music D) Environment
 
Answer & Explanation Answer: B) Medicine

Explanation:
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Filed Under: Honours and Awards

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