Questions

Q:

A data dictionary is a special file that contains

A) The width of all fields in all files B) The data type of all fields in all file
C) The name of all fields in all files D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

A data dictionary is a special file that contains a set of information describing the contents, format, and structure of a database and the relationship between its elements, used to control access to and manipulation of the database.

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Filed Under: Database
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Q:

A tennis ball machine serves a ball vertically into the air from a height of 2 feet, with an initial speed of 110 feet per second. After how many seconds does the ball attain its maximum height?

A) 2.87 sec B) 3.44 sec
C) 4.65 sec D) 5.41 sec
 
Answer & Explanation Answer: B) 3.44 sec

Explanation:

It is launched vertically with an initial speed of 110 ft/sec.

It will reach maximum height when the speed drops to 0.

Vo=110 feet per second 

ho=2 feet 

So, h(t) = -16t^2 +110t +2 

Take the derivative: h'(t) = 110 -32t 

The maximum height will be at the inflection when the derivative crosses the x-axis, then h'(t)=0. 

So, set h'(t)=0 and solve for t: 

0 = 110 -32t 

-110 = -32t 

t=3.4375 

t=3.44 seconds.

 

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3 6520
Q:

What is the capital of china?

A) Santiago B) Beijing
C) Havana D) None
 
Answer & Explanation Answer: B) Beijing

Explanation:

 capital of china is Beiging

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Filed Under: Country Capitals

58 6517
Q:

Cosmetic powders are prepared from

A) Talc B) Serpentine
C) Asbestos D) Gypsum
 
Answer & Explanation Answer: A) Talc

Explanation:

Cosmetic powders are prepared from Talc.

Face powder is a cosmetic powder applied to the face to set a foundation after application. It can also be reapplied throughout the day to minimize shininess caused by oily skin. There is translucent sheer powder, and there is pigmented powder.

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Filed Under: General Science
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11 6514
Q:

Gujarat is noted for the cultivation of 

A) Cotton B) Sugarcane
C) Saffron D) Jute
 
Answer & Explanation Answer: A) Cotton

Explanation:

Black soil coupled with favorable climatic conditions (Temperature of 21-320C and 30 -100 cm of rainfall) are responsible for cotton cultivation in Gujarat.

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Filed Under: Indian Geography
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15 6512
Q:

Which of the following is not a Jovian planet?

A) Jupiter B) Earth
C) Saturn D) Neptune
 
Answer & Explanation Answer: B) Earth

Explanation:

Earth is not a Jovian Planet as it is a Terrestrial planet.

A planet designated as Jovian is hence a gas giant, composed primarily of hydrogen and helium gas with varying degrees of heavier elements.

 

Within the Solar System, four Jovian planets exist – Jupiter, Saturn, Uranus, and Neptune. Though these planets vary in terms of size, mass, and composition, they all share certain characteristics that cause them to differ greatly from the terrestrial planets located in the inner Solar System.

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12 6511
Q:

" World Press Freedom Day " is observed on ?

A) May 1 B) May 2
C) May 3 D) May 4
 
Answer & Explanation Answer: C) May 3

Explanation:

World Press Freedom Day is observed on 3 May every year.

This year’s theme is “Critical Minds for Critical Times: Media’s role in advancing peaceful, just and inclusive societies”.

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Filed Under: Important Days and Years
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4 6511
Q:

The Pallava ruler who built the famous kailash temple at Kanchi and the Shore temple at Mahabalipuram was

A) Narsimha varman II B) Paramesvar varman I
C) Mahendra varman I D) Narasimha varman I
 
Answer & Explanation Answer: A) Narsimha varman II

Explanation:
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Filed Under: Indian History

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