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Q:

The study of trees is called

A) Histology B) Andreology
C) Sistology D) Dendrology
 
Answer & Explanation Answer: D) Dendrology

Explanation:

The study of trees is called Dendrology.

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Filed Under: General Science
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Q:

Mahesh rows to the place 80 km away and back in 20 hours. He finds that he can row 8 km downstream in the same time as 4 km upstream. The speed of the boat in stillwater is

A) 9 kmph B) 7 kmph
C) 2 kmph D) 5 kmph
 
Answer & Explanation Answer: A) 9 kmph

Explanation:
If Mahesh moves 8 km downstream in X hours

Downstream speed = 8/X kmph

upstream speed = 4/X kmph

Now 80/(8/X) + 80/(4/X)=20

X=2/3

downstream Speed = 8/(2/3)= 12 kmph

upstream Speed = 4/(2/3)= 6 kmph

Rate of the stream = (12+6)/2= 9 kmph

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Filed Under: Boats and Streams
Exam Prep: Bank Exams

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Q:

Which of the following mixtures is not a colloid?

A) Sugar water B) Milk
C) Paint D) Fog
 
Answer & Explanation Answer: A) Sugar water

Explanation:

Colloids include gels, sols, and emulsions; the particles do not settle, and cannot be separated out by ordinary filtering or centrifuging like those in a suspension.

These Colloid substances consists of ultramicroscopic particles of one substance dispersed through another substance from which we cannot separate them.

 

Sugar water is not a colloid and it is a solution in which we can separate them.

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Filed Under: Chemistry
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Q:

A push or pull on an object is called

A) Force B) Weight
C) Opposition D) None of the above
 
Answer & Explanation Answer: A) Force

Explanation:

The push or pull on an object that causes it to move or stop or change direction is called as Force.

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Filed Under: General Science
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Q:

Air pressure is measured in which of the following units?

A) Steridian B) kg/mts
C) Newton D) Pascal
 
Answer & Explanation Answer: D) Pascal

Explanation:

Pressure = (Net Force) / (Applied area) = Newton / square meters


Measuring units of pressure are:

. Pascal
. Bar
. Torr
. Pounds per square inch (psi)
. Standard atmosphere (atm).

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Filed Under: Physics
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Q:

In the given figure, ABCD is a square. EFGH is a square formed by joining mid points of sides of ABCD. LMNO is a square formed by joining mid points of sides of EFGH. A circle is inscribed inside EFGH. If area of circle is 38.5 sq.cm, the what is the area (in sq.cm) of square ABCD?

A) 98 B) 196
C) 122.5 D) 171.5
 
Answer & Explanation Answer: B) 196

Explanation:
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Filed Under: Area
Exam Prep: Bank Exams

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Q:

37 trees are planted in a straight line such that distance between any two consecutive trees is same. A car takes 20 seconds to reach the 13th tree. How much more time (in seconds) will it take to reach the last tree?

A) 36 B) 40
C) 57 D) 60
 
Answer & Explanation Answer: B) 40

Explanation:
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Filed Under: Time and Distance
Exam Prep: AIEEE

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Q:

What is the function of an antagonist in a story?

Answer

The antagonist is the negative or opposing force in a story.


It could be a human enemy, or it could be non-human, like an animal or something less tangible, like fear.


 


The antagonist plays an important role in story development.

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