Questions

Q:

A copper wire of radius r and length lhas a resistance of R. A second copper wire with radius 2r and length lis taken and the two wires  are  joined  in  a  parallel  combination. The  resultant  resistance   of  the  parallel combination of the two wires will be

A) 5 R B) 5 R/4
C) 4 R/5 D) R/5
 
Answer & Explanation Answer: D) R/5

Explanation:

1st copper wire: R = pl/A = pl/ πr2

2ndcopper wire: R’ = p’l’/A’ = pl/(4 πr2) = R/4

If joined in parallel, (1/Req) = (1/R) + (1/R’)

= 1/R + 4/R1/Req= 5/R

Req= R/5

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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

Damanganga Reservoir Project with about 115 km of minor canals and distributaries is located in

A) NCT B) Dadra and Nagar Haveli
C) Puducherry D) Goa
 
Answer & Explanation Answer: B) Dadra and Nagar Haveli

Explanation:

The Daman Ganga also called DawanRiver is a river in western India. The river's headwaters are on the western slope of the Western Ghats range, and it flows west into the Arabian SeaThere is an existing major irrigation project on the river called the Damanganga Reservoir Project, whichis located near Madhuban village in Dharampur taluka of Valsad district of Gujarat.It is an inter-state multipurpose project of the Govt. of Gujarat and Union Territories of Dadra & Nagar Haveli (D&NH) and Daman. The storage of this project is shared by the riparian states of Gujarat, Union Territories of Dadra & Nagar Haveli and Daman & Diu as beneficiary States.

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Filed Under: General Awareness
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Q:

M sham Lal has done commendable worrk in which of the following fields

A) Social Service B) Trade Unionism
C) Journalism D) Politics
 
Answer & Explanation Answer: C) Journalism

Explanation:
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Filed Under: Famous Personalities

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Q:

In which layer is the temperature the lowest?

A) Troposphere B) Ionosphere
C) Mesosphere D) Stratosphere
 
Answer & Explanation Answer: C) Mesosphere

Explanation:

The mesosphere lies above the stratosphere and extends to an altitude of about 85 km. This is layer is often referred to as the cold layer, as the lowest readings in the atmosphere are found here.

 

Temperature decreases with height, reaching a minimum average value of -90 ºC at the top of the layer.

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Filed Under: General Awareness
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Q:

 A transaction for which all committed changes are permanent is called:

A) atomic. B) consistent.
C) isolated. D) durable.
 
Answer & Explanation Answer: D) durable.

Explanation:
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Filed Under: Database

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Q:

The term aerotolerant anaerobe refers to an organism that

A) uses oxygen or grows without oxygen. B) requires more oxygen than is present in air.
C) does not use oxygen but tolerates it. D) requires less oxygen than is present in air.
 
Answer & Explanation Answer: C) does not use oxygen but tolerates it.

Explanation:
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Filed Under: Biology
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Q:

Meaning of 'Stalk'?

A) Shoot B) Cane
C) Bent D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Stalk means the main stem of a herbaceous plant.

 

Synonyms for Stalk are - Shoot, trunk, cane, bent, reed, straw, bine, stock,...

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Filed Under: English
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Q:

What are the Monomers that make up Proteins?

A) Amino acids B) Nucleotides
C) Disaccharides D) Chaperones
 
Answer & Explanation Answer: A) Amino acids

Explanation:

Proteins are long chains of Amino acids. That is in brief, Amino acids are the monomers of Proteins. Amino acids are compounds which contain both an amino group and a carboxylic group. Proteins are made up of 20 essential amino acids.

Monomer means a small molecule of an organic substance i.e, building block in general.

 

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Filed Under: Chemistry
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