Questions

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 6588
Q:

The Sarvodaya Movement was started by

A) Vinoba Bhave B) Bal Gangadhar Tilak
C) Mahatma Gandhi D) Vivekananda
 
Answer & Explanation Answer: A) Vinoba Bhave

Explanation:

The Sarvodaya Movement was started by Vinoba Bhave on 18 April 1951 at Pochampally village in Nalgonda district who was directly influenced by Gandhi. 

 

The_Sarvodaya_Movement_was_started_by1557121966.jpg image

 

The meaning of Sarvodaya is a combination of two words Sarva meaning one and all, and Uday meaning welfare or uplift. Thus it implies Universal uplift or welfare of all as.

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Filed Under: Indian History
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7 6577
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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11 6573
Q:

That which cannot be conquered -

A) Reticent B) Insolvent
C) Venial D) Invincible
 
Answer & Explanation Answer: D) Invincible

Explanation:

That which cannot be conquered is called as Invincible.

One who speaks less is called as Reticent.

A pardonable offence is called as Venial.

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Filed Under: English
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2 6567
Q:

When you travel in certain parts of India, you will  notice red soil. What is the main reason for this colour?

A) Abundance of magnesium B) Accumulated humus
C) Presence of ferric oxides D) Abundance of Phosphates
 
Answer & Explanation Answer: C) Presence of ferric oxides

Explanation:
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Filed Under: Indian Geography

12 6567
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 6562
Q:

The Gandhi Sagar Dam is built on which river in Madhya Pradesh?

A) Tapti B) Chambal
C) Narmada D) None
 
Answer & Explanation Answer: B) Chambal

Explanation:

The Gandhi Sagar Dam is built on Chambal river and is located in the Mandsaur & Neemuch district of Madhya Pradesh.

 

The dam’s reservoir area is the second-largest in India (after the Hirakud Reservoir), and attracts a large number of migratory and non-migratory birds throughout the year.

 

It is a masonry gravity dam, standing 62.17 metres (204.0 ft) high.

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10 6561
Q:

Clove the commonly used spice is obtained from the

A) stem B) root
C) flower bud D) fruit
 
Answer & Explanation Answer: C) flower bud

Explanation:

Clove the commonly used spice which is obtained from the flower buds of a tree in the family Myrtaceae, Syzygium aromaticum.

clove_the_commonly_used_spice_is_obtained_from_the1536734920.jpg image

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10 6560