Questions

Q:

Hot water is poured simultaneously in four metallic tumblers painted outside with different paints. After some time the water will be found to have cooled most in the tumbler painted.

A) rough white B) rough black
C) shining white D) shining black
 
Answer & Explanation Answer: B) rough black

Explanation:

Black surfaces are good emitters of heat. If the black surface is rough too, the emitting will be better. Shinning surfaces reflect black radiation . So if the black surface is also shining the effectiveness of emitting heat is lessened.

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Filed Under: Physics

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Q:

Pluto dwells on the inner edge of the

A) Main asteroid belt B) Oort cloud
C) Kuiper belt D) None of the above
 
Answer & Explanation Answer: C) Kuiper belt

Explanation:

Pluto dwells on the inner edge of the The Kuiper belt which is a belt of asteroids that lies on the outer edge of the solar system.

Pluto is a dwarf planet that is supposed to be no longer a planet and is still considered a planet because of its history in the solar system.

 

It takes 248 years to make one orbit around the sun. As to where it is, depends on time.

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

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Q:

There are how many Non-permanant members of Security Council?

A) 5 B) 10
C) 15 D) 20
 
Answer & Explanation Answer: B) 10

Explanation:

There are 10 Non-permanant members of Security Council

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Filed Under: Indian Politics

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Q:

Who was the first(1st) ODI captain for India?

A) Ajit Wadekar B) Bishen Singh Bedi
C) Nawab Pataudi D) Vinoo Mankad
 
Answer & Explanation Answer: A) Ajit Wadekar

Explanation:

who_was_the_1st_odi_captain_for_india1561445632.jpg image

Ajit Laxman Wadekar was an Indian international cricketer who played for the Indian national team between 1966 and 1974. He is from Mumbai.

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Filed Under: Sports
Exam Prep: AIEEE , Bank Exams , CAT
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Q:

Who discovered the Indus Valley Civilization

A) Sir Leonard wooley B) V.S.Agarwal
C) Dayaram Sahni D) A.L.Basham
 
Answer & Explanation Answer: C) Dayaram Sahni

Explanation:
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Filed Under: Indian History

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Q:

Every computer on the internet is known as

A) Client B) Modem
C) Server D) Host
 
Answer & Explanation Answer: D) Host

Explanation:

Every computer on the internet needs a string called Internet Protocol (IP address) to perform its work. So Every computer on the internet is known as Host.

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Filed Under: Computer
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Q:

 In the relational model, relationships between relations or tables are created by using:

A) composite keys. B) determinants.
C) candidate keys. D) foreign keys.
 
Answer & Explanation Answer: D) foreign keys.

Explanation:
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Filed Under: Database

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Q:

What are the different hazards? How do you avoid them?

Answer

There are situations, called hazards, that prevent the next insturction in the instruction stream from executing during its designated clock cycle. hazards reduce the performance from the ideal speedup gained by pipelining.


There are three classes of Hazards:


1. Structural hazards: It arise from resource conficts when the hardware cannot support all possible combinations of instructions simultaniously in overlapped execution.


2. Data Hazards: It arise when an instruction depends on the results of previous instruction in a way that is exposed by the overlapping of instructions in the pipeline.


3.control hazards. it arise from the pipelining of branches and other instructions that chage the PC.

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Subject: Hardware

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