Searching for "extract"

Q:

Oil equal to 20% of the weight of ground nut is extracted in a mill. The matter left after extraction is sold as cattle feed at the rate of Rs 12.5/kg. The groundnuts are bought at Rs 20/kg. The processing cost is Rs 5/kg. At what price (Rs per kg) should the oil be sold to earn 20% profit on total costs (Total cost = Cost of groundnuts and Processing costs)?

A) 250 B) 150
C) 200 D) 100
 
Answer & Explanation Answer: D) 100

Explanation:
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Filed Under: Profit and Loss
Exam Prep: Bank Exams

Q:

By which of the following processes are metals of high reactivity extracted from purified molten ore?

A) Reduction by an appropriate reducing agent B) Roasting
C) Electrolysis D) Calcination
 
Answer & Explanation Answer: C) Electrolysis

Explanation:
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Filed Under: Chemistry
Exam Prep: Bank Exams , AIEEE

Q:

The percentage of metals in a mine of zinc ore is 60%. Now the percentage of silver is 3/4% of metals and the rest is zinc. If the mass of ore extracted from the mine is 8000 kg, the mass (in kg) of zinc is

A) 5147 kg B) 4764 kg
C) 3587 kg D) 2125 kg
 
Answer & Explanation Answer: B) 4764 kg

Explanation:

Mass of zinc ore = 8000 kg


Mass of metal = 60% of 8000 = 4800 kg


Mass of silver in metal = 3/4 x 4800/100 = 36 kg


Mass of zinc = 4800 - 36 = 4764 kg.

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Filed Under: Percentage
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

Q:

Metal extracted from seawater

A) Potassium B) Calcium
C) Magnesium D) Sodium
 
Answer & Explanation Answer: C) Magnesium

Explanation:

Magnesium is dissolved in seawater at a concentration of about 1,000 parts per million and is the only metal directly extracted from seawater.

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Filed Under: General Science
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Database Administration

Q:

Gold and silver are extracted from their respective ores by _______

A) Smelting B) Roasting
C) Leaching D) Hydro metallurgy
 
Answer & Explanation Answer: D) Hydro metallurgy

Explanation:
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Filed Under: Chemistry

Q:

Water table in most parts of the State has gone down to such a level that its extraction for irrigation purposes is not economical any more.

 

Courses of action:

I. Extraction of ground water for any purpose in the State should be banned for some time in order to replenish the water table.

II. The Government should make provisions for alternative methods of irrigation so that the farmers are not compelled to use ground water.

A) If only course of action I follows B) If only course of action II follows
C) If either course of action I or II follows D) If both courses of action I and II follow
 
Answer & Explanation Answer: B) If only course of action II follows

Explanation:

I is impractical. Water is essential for life to go on. II is sensible, especially when using ground water is proving to be uneconomical

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Q:

What is Extractor?

Answer

Extractors is a data retrieval mechanisms in the SAP source system. Which can fill the extract structure of a data source with the data from the SAP source system datasets. The extractor may be able to supply data to more fields than exist in the extract structure.

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Subject: SAP

Q:

How can we extract string "abc.com" from a string "https://info@abc.com" using regular _expression of php?

Answer

We can use the preg_match() function with “/.*@(.*)$/” as the regular expression pattern.
For example:
preg_match("/.*@(.*)$/","https://info@abc.com",$data);
echo $data[1];
?>

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Subject: PHP