Questions

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

1 5409
Q:

The purpose of the UNIA was to

A) Economic self sufficiency B) Racial pride
C) Formation of black nation D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

UNIA - Universal Negro Improvement Association.

 

It is primarily in the United States, organization founded by Marcus Garvey, dedicated to racial pride, economic self-sufficiency, and the formation of an independent black nation in Africa.

 

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Filed Under: World Organisations
Exam Prep: AIEEE , Bank Exams
Job Role: Analyst , Bank Clerk , Bank PO

2 5408
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

0 5406
Q:

The substances that are composed of to or more different elements in fixed proportion by mass are called

A) mixture B) compound
C) element D) None of these
 
Answer & Explanation Answer: B) compound

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Filed Under: Chemistry

5 5403
Q:

Which term best describes how the solar system formed?

A) Electrically B) Gradually
C) Chemically D) Rapidly
 
Answer & Explanation Answer: B) Gradually

Explanation:

All of us, believe that the Solar System evolved from a giant cloud of dust and gas. They believe that this dust and gas began to collapse under the weight of its own gravity. As it did so, the matter contained within this could begin moving in a giant circle, much like the water in a drain moves around the center of the drain in a circle.

solar_system_formation1532070182.jpg image

At the center of this spinning cloud, a small star began to form. This star grew larger and larger as it collected more and more of the dust and gas that collapsed into it.

Further away from the center of this mass where the star was forming, there were smaller clumps of dust and gas that were also collapsing. The star in the center eventually ignited forming our Sun, while the smaller clumps became the planets, minor planets, moons, comets, and asteroids.

 

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Filed Under: General Science
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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5 5402
Q:

Hitendra Desai was known outstanding in which field ?

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

Explanation:
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Filed Under: Famous Personalities

4 5400
Q:

Which among the following is a Vitamin?

A) Citric acid B) Follic acid
C) Glutonic acid D) none
 
Answer & Explanation Answer: B) Follic acid

Explanation:
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Filed Under: Biology

9 5399
Q:

Statement which is true about bacteria ?

A) All bacteria are autotrophs B) Most of them are heterotrophs but some are autotrophs
C) All bacteria heterophs D) All bacteria are photosynthetic
 
Answer & Explanation Answer: B) Most of them are heterotrophs but some are autotrophs

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Filed Under: Biology
Exam Prep: AIEEE

20 5399