Questions

Q:

In the structure of planet Earth ,below the mantle, the core is mainly made up of which one of the following

A) Aluminium B) Chrromium
C) Iron D) Silicon
 
Answer & Explanation Answer: C) Iron

Explanation:
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Filed Under: World Geography

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Q:

Which of the following is an example of continous emission spectrum?

A) Spectrum of an oil frame B) Spectrum of a water
C) both D) none
 
Answer & Explanation Answer: A) Spectrum of an oil frame

Explanation:

Spectrum of an oil frame is an example for continuous emission spectrum

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Filed Under: Physics

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Q:

What term is used for initiation into Sikhism?

Answer

Pahul

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Subject: Indian Culture

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Q:

The smallest dog on earth is the

Answer

Chihuahua

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22 3531
Q:

Enzymes are produced by

A) endocrine glands B) exocrine glands
C) liver D) spleen
 
Answer & Explanation Answer: B) exocrine glands

Explanation:

Glands are of two types. The exocrine glands have ducts to carry their secretions and these secretions contain enzymes. on the other hand, endocrine glands are ductless glands and they secrete mainly horomones.

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Filed Under: Biology

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Q:

When is a door not a door?

Answer

A door is not a door when it is a jar.


 


When_is_a_door_not_a_door1585541856.jpg image

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Subject: Logic Puzzles Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk , Analyst

34 3529
Q:

A container contains 165 litres of milk. Some quantity of milk is taken out and half of that quantity of milk, water is added in the container. Now ratio of milk to water in the container becomes 5:3. What is the quantity of water added in it?

A) 40 litre B) 45 litre
C) 60 litre D) 30 litre
 
Answer & Explanation Answer: B) 45 litre

Explanation:

Let amount of milk removed = 2x litre
So, amount of water added = x litre
Now → (165 − 2x)/x = 5/3
x = 45 lit

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Q:

What is the gram formula mass of K2CO3?

A) 147 B) 138
C) 129 D) 116
 
Answer & Explanation Answer: B) 138

Explanation:

The gram formula mass of a compound is nothing but the molar mass.

The molar mass of K2CO3 (Potassium Carbonate) is given by

Atomic weights of individual elements are

 

K (Potassium) = 39 g

C (Carbon) = 12 g

O (Oxygen) = 16 g

 

Hence, that of K2CO3 = 39(2) + 12 + 16(3)

= 78 + 12 + 48

= 138.

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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

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