Questions



Q:

The working principle of a washing machine is

A) reverse osmosis B) diffusion
C) centrifugation D) dialysis
 
Answer & Explanation Answer: C) centrifugation

Explanation:

The working principle of a washing machine is centrifugation.

 

The_working_principle_of_a_washing_machine_is1542349278.jpg image

 

Centrifugation is a separation process which uses the action of centrifugal force to promote accelerated settling of particles in a solid-liquid mixture.

The washing machine consists of centrifuge for this purpose. A centrifuge is a piece of equipment that puts an object in rotation around a fixed axis, applying a force perpendicular to the axis of spin that can be very strong.

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Q:

Who is the author of the book 'Freedom Behind Bars '

A) Kiran Bedi B) Jawaharlal Nehru
C) Nelson Mandela D) Sheikh Abdullah
 
Answer & Explanation Answer: A) Kiran Bedi

Explanation:
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Q:

Which river of India is called Vridha Ganga?

A) Krishna B) Godavari
C) Kaveri D) Narmada
 
Answer & Explanation Answer: B) Godavari

Explanation:

Godavari, India's second longest river after the river Ganga and is one among the peninsular rivers.

 

 Which_river_of_India_is_called_Vridha_Ganga1545973278.jpg image

 

The river Godavari is often referred to as Vridha Ganga because of its large size and extent among the peninsular rivers.

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Q:

Among the following the maximum covalent character is shown by the compound

(1)MgCl2

(2)FeCl2

(3)SnCl2

(4) AlCl3

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

Explanation:

According to Fajans rule, cation with greater charge and smaller size favours covalency.

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Q:

90 D in a R A

Answer

90 D in a R A => 90 degrees in a Right Angle. 


This is similar to 


26 L of the A = 26 Letters of the Alphabet


12 S of the Z.

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Q:

Which latitude passes through the middle of India?

A) Equator B) Arctic Circle
C) Tropic of Capricorn D) Tropic of Cancer
 
Answer & Explanation Answer: D) Tropic of Cancer

Explanation:
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Q:

One rabbit saw 6 elephants while going towards River. Every elephant saw 2 monkeys are going towards river. Every monkey holds one tortoice in their hands.

How many animals are going towards the river?

A) 14 B) 11
C) 8 D) 5
 
Answer & Explanation Answer: D) 5

Explanation:

From the given data,

1 rabbit is going towards river not the six eephants. And these 6 elephants saw 2 monkeys are going towards river. Each monkey is holding 1 tortoice.

                       One_rabbit_saw_6_elephants_while_going_towards_River._Every_elephant_saw_2_monkeys_are_going_towards_river_._Every_monkey_holds_one_tortoice_in_their_hands_._1536581196.jpg image

Hence, number of animals going towards river are 1 rabbit, 2 monkeys and 2 tortoice

= 1 + 2 + 2

= 5.

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Q:

Hydrogen bomb is based on the principle of  

A) nuclear fission B) nuclear fusion
C) natural radioactivity D) artificial radioactivity
 
Answer & Explanation Answer: B) nuclear fusion

Explanation:

Hydrogen Bomb is based on the principle of Nuclear Fusion.

Hydrogen_bomb_is_based_on_the_principle_of1552385714.jpg image

 

  • Nuclear fusion is a reaction in which two or more atomic nuclei are combined to form one or more different atomic nuclei and subatomic particles.

 

  • The difference in mass between the reactants and products is manifested as either the release or absorption of energy.
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