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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:

ATP is a compound that is synthesized when

A) digestive enzymes break amino acids into smaller pieces B) energy stored in nitrogen is released froming amino acids
C) energy is stored in chemical bonds is released during cellular respiration D) chemical bonds between carbon atoms are formed by during photo synthesis
 
Answer & Explanation Answer: C) energy is stored in chemical bonds is released during cellular respiration

Explanation:
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Filed Under: Biology
Exam Prep: AIEEE
Job Role: Analyst

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Q:

Physical data models describe the details of how data is stored in the computers

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

They describe the details of how data is stored in the computers

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Subject: Database
Job Role: Database Administration

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Q:

In commonwealth Games, 2010, india won 101 medals. Out of them, how many medals have been received by team events, women and men respectively?

A) 0, 37, 64 B) 2, 35, 64
C) 1, 37, 63 D) 1, 36, 64
 
Answer & Explanation Answer: B) 2, 35, 64

Explanation:
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Filed Under: Sports

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Q:

What is the smallest unit that can evolve?

Answer

The population is the smallest unit of living organisms that can undergo evolution.

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Subject: General Awareness Exam Prep: AIEEE , Bank Exams , GATE
Job Role: Analyst , Bank Clerk , Bank PO

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Q:

How fast do satellites orbit the earth?

A) 28,000 kmph B) 26,000 kmph
C) 17,500 kmph D) 22,500 kmph
 
Answer & Explanation Answer: A) 28,000 kmph

Explanation:

Satellites orbit the earth at a speed of 28,000 kmph.

Satellites that are further away actually travel slower. The International Space Station has a Low Earth Orbit, about 400 kilometers (250 miles) above the earth's surface. Objects orbiting at that altitude travel about 28,000 kilometers per hour (17,500 miles per hour).

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

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Q:

Study of sound is called

A) Agronomy B) Accoustics
C) Aesthetics D) Aeronautics
 
Answer & Explanation Answer: B) Accoustics

Explanation:

Accoustics is a subject deals with the Study of sound

 

Aesthetics is a Philosophy of fine arts

 

The science or art of flight is called Aeronautics

 

The science of soil management is called Agronomy.

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Filed Under: General Awareness
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Q:

According to legend, which deity was Ved Vyasa's scribe as he dictated the story of the Mahabharata?

Answer

Ganesha

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Subject: Indian Culture

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