Questions

Q:

Working of safety fuses depends upon

1. magnetic effect of the current

2. chemical effect of the current

3. magnitude of the current

4. heating effect of the current

Select the correct answer using the code given below.

 

A) 1, 2, 3 and 4 B) 1, 2 and 3 only
C) 3 and 4 only D) 4 only
 
Answer & Explanation Answer: C) 3 and 4 only

Explanation:

An electric fuse is a device which is used to limit the current in an electric circuit. The fuse safeguards the circuit and the electrical appliances from being damaged.

The fuse wire is generally an alloy of lead and tin. It has a low melting point and breaks the circuit if the current exceeds a safe value. The thickness and length of the fuse wire depends on the maximum current allowed through the circuit.

It is connected in series in the beginning of the electric circuits.

If too many electrical appliances of high power rating (like electric iron, water heater etc) are switched on at the same time, they draw an extremely large current from the circuit. This condition is called overloading and it can cause overheating of the wiring and lead to a fire. (heating effect and magnitude of the current)

 

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Filed Under: Physics
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4 77046
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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Filed Under: Indian Geography

665 76997
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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Filed Under: Chemistry
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486 76796
Q:

In India, the term ‘hot money’ is used to refer to 

 

A) Currency + Reserves with the RBI B) Net G D R
C) Net Foreign Direct Investment D) Foreign Portfolio Investment
 
Answer & Explanation Answer: D) Foreign Portfolio Investment

Explanation:

In fact, FPI is often referred to as “hot money” because of its tendency to flee at the first signs of trouble in an economy. These massive portfolio flows can exacerbate economic problems during periods of uncertainty.

 

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Filed Under: General Awareness
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4 76652
Q:

Read the passage carefully and choose the best answer to each question out of the four alternatives.

 


Doing an internship at the University of Lille in France, I almost always found myself stuck whenever I had to speak to non-Indians about India or on anything 'Indian'. This was more because of the subtle differences in the way the French understood India in comparison to what I thought was 'Indian'. For instance, when I, or any Indian for that matter, say 'Hindi' is an Indian language, what it means is that it is one of the languages widely spoken in India. This need not be similar to the understanding that the French would have when they hear of 'Hindi' as an Indian language. Because for them Hindi then becomes the only language spoken in India. This is a natural inference that the French, Germans, Italians and many other European nationals would tend to make, because that is generally how it is in their own respective countries. The risk of such inappropriate generalisations made about 'Indian' is not restricted to language alone but also for India's landscape, cuisine, movies, music, climate, economic development and even political ideologies. The magnitude of diversity of one European country can be easily compared to that of one of the Indian State, isn't it? Can they imagine that India is one country whose diversity can be equated to that of the entire European continent? The onus is upon us to go ahead and clarify the nuances in 'Indianness' while we converse. But why should one do so? How does it even matter to clarify?

 

According to the writer the responsibility of explaining the facts about India to Europeans rests with?

 

A) Europeans B) Indians
C) Rest of the world D) Indian Government
 
Answer & Explanation Answer: B) Indians

Explanation:
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1 76592
Q:

It is difficult to fix a nail on a freely suspended wooden frame. Which law supports this statement?

 

A) Law of inertia B) Newton's second law
C) Newton's third law D) Pascal's law
 
Answer & Explanation Answer: C) Newton's third law

Explanation:
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Filed Under: Physics
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19 76427
Q:

Select the antonym of

 

cosset

 

A) ignore B) close
C) caress D) fondle
 
Answer & Explanation Answer: A) ignore

Explanation:
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Filed Under: English
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0 76421
Q:

Read the passage carefully and choose the best answer to each question out of the four alternatives.


Manja, or the glass-coated string used for flying kites, not only poses threat to humans, animals and birds but also to trees. A study by the country's oldest botanical garden has revealed that it poses a great threat to trees. But how can a snapped string struck in a tree kill the tree? Apparently, it does so by allying with the creepers in the garden.


A research paper by three scientists of the Acharya Jagdish Chandra Bose Indian Botanic Garden, located in West Bengal's Howrah district, illustrates in detail how the manja, in collusion with climbers, does the damage. "The abandoned, torn kite strings act as an excellent primary supporting platform for the tender climbers, giving easy passage to reach the top of the trees. Lateral branches from the top of the climber and other accessory branches from the ground reaches the top taking support of the first climber, completely covers the treetop, thus inhibiting the penetration of sunlight," says the research paper.


What gives easy passage to 'climbers' to top of the trees?

 

A) Creepers B) Torn kites
C) Lateral branches D) Manja
 
Answer & Explanation Answer: D) Manja

Explanation:
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