Questions

Q:

A wire of copper having length I and area of cross-section A is taken and a current / is flown through it. The power dissipated in the wire is P. If we take an aluminium wire having same dimensions and pass the same current through it, the power dissipated will be

A) P B) < P
C) > P D) 2P
 
Answer & Explanation Answer: C) > P

Explanation:

Aluminum has a resistivity varying from 2.65 to 2.82 × 10−8 Ω m.The resistivity of copper is generally given as: 1.72 x 10-8 Ω.m.So, since resistivity of aluminium is higher than that of copper, so Power dissipated will be greater than P. this is because rest of the factors (l, A and i) are constant.

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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

The United Nations declared 2000-2010 as the International Decade for

A) Water for Life Decade B) Bone and Joint Decade
C) Second International Decade for the Eradication of colonialism D) International Decade for Natural Disaster Rreduction
 
Answer & Explanation Answer: B) Bone and Joint Decade

Explanation:
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Q:

What is Retained Earnings?

Answer

When a company or corporation earns a profit or surplus, that money can be put to two uses it can either be re-invested in the business called retained earnings or it can be paid to the shareholders as a dividends.

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Subject: Finance

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Q:

What's at the end of a rainbow?

Answer

The letter 'W' is at the end of a rainbow.

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Subject: Logic Puzzles Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

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Q:

What do we call a change to the Constitution?

A) A Bill B) An Act
C) An Amendment D) An Interpret
 
Answer & Explanation Answer: C) An Amendment

Explanation:

A change to the Constitution is called as An Amendment.

An Amendment ::

An Amendment is ratified after two-thirds of the House and Senate approve of the proposal and send it to the states for a vote. That Convention can propose as many amendments as it deems necessary. Then, three-fourths of the states must affirm the proposed Amendment.

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

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Q:

The Book " The Man who knew Infinity" by Robert Kanigel and extensively reviewed in indian newspapers is the biography of

A) Vikram Sarabhai B) Sir Homi J Bhabha
C) Sir CV Raman D) Srinivasa Ramanujan
 
Answer & Explanation Answer: D) Srinivasa Ramanujan

Explanation:
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Filed Under: General Awareness

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Q:

Read each sentence to find out whether there is any grammatical error or idiomatic error in it. The error, if any, will be in one part of the sentence. The letter of that part is the answer. If there is no error, mark the answer as No error. (Ignore errors of the punctuation if any).It was a long/ and uncomfortable journey / but he managed / to reach with time.

A) It was a long B) and uncomfortable journey
C) but he managed D) to reach with time.
 
Answer & Explanation Answer: D) to reach with time.

Explanation:

Here, “to reach in time” should be used. Idiom in times mean, not late. with enough time, to be able to do something

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Filed Under: English
Exam Prep: Bank Exams

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Q:

which of the following represents a set of properties that guarantee that database transactions are processed reliably in computer science ?

A) Buffer Cache B) ACID
C) Foreign Key D) None
 
Answer & Explanation Answer: B) ACID

Explanation:

ACID means (Atomicity, Consistency, Isolation, Durability) is a set of properties of database transactions intended to guarantee validity even in the event of errors, power failures, etc.

In the context of databases, a sequence of database operations that satisfies the ACID properties and, thus, can be perceived as single logical operation on the data, is called a transaction. For example, a transfer of funds from one bank account to another, even involving multiple changes such as debiting one account and crediting another, is a single transaction.

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Filed Under: IBM Certification
Job Role: Analyst , IT Trainer

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