Questions

Q:

The purpose of choke in tube light is

A) Induce high voltage B) Induce low resistance
C) Induce high resistance D) Induce low voltage
 
Answer & Explanation Answer: A) Induce high voltage

Explanation:

When the switch is ON, in a tube light choke is nothing but the coil/ballast ( inductor) which is used to induce the high voltage across it. as we know that inductor has property to induce high voltage for the brief period of time, this high voltage is required to ionize the gases in the starter.

Then gas inside the starter gets ionized due to this full voltage and heats the bimetallic strip that is caused to be bent to connect to the fixed contact. Current starts flowing through the starter. Although the ionization potential of the neon is the little bit more than that of the argon but still due to small electrode gap high voltage gradient is appeared in the neon bulb and hence glow discharge is started first in a starter.

As voltage gets reduced due to the current causes a voltage drop across the inductor, the strip cools and breaks away from the fixed contact. At that moment a large L di/dt voltage surge comes across the inductor at the time of breaking.

This high valued surge comes across the tube light electrodes and strikes penning mixture (mixture argon gas and mercury vapor).

Gas discharge process continues and current gets the path to flow through the tube light gas only due to low resistance as compared to the resistance of starter.

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Filed Under: Physics
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31 17054
Q:

Which among the following comes under the elements of Basic Structure of Indian constitution?

I. Supremacy of Constitution
II. Free and Fair Election
III. Judicial Review

A) Only I B) Only II
C) Both I and II D) All I, II and III
 
Answer & Explanation Answer: D) All I, II and III

Explanation:
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0 17053
Q:

Read the following information and answer the questions given below:

A has 28 elements, B has 32 elements and A U B has 40 elements.

How many elements are present only in B?

A) 28 B) 18
C) 12 D) 10
 
Answer & Explanation Answer: C) 12

Explanation:
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0 17047
Q:

Journalist's Day was celebrated for the first time all over the country on

A) Oct 1,1984 B) Oct 8,1984
C) Oct 20,1984 D) Oct 28,1984
 
Answer & Explanation Answer: D) Oct 28,1984

Explanation:
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28 17035
Q:

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

 

The flora and fauna of Cubbon Park captures our attention more than anything else. But when you take time to look closely at the statue, you will marvel at its sheer grandeur. Sculpted by Sir Thomas Brock, the 11 feet high marble statue is larger than life. It brings out the personality of Queen Victoria, who had been the Monarch of Great Britain from 1837 till 1901, depicting a rather proud, stern person with pronounced features.

In 1906, the statue was unveiled in the city by George Frederick Ernest Albert, Prince of Wales and Duke of Cornwall and York, making it stand in all its glory in its 111th year. Even though there is a wealth of history to the statue, and it was made to appear imposing, the busy Bengalureans would probably refer to it as just another landmark. As the workers are busy in discussion on the instructions given to them, life continues as usual in the Park.


The Bengalureans would refer to the Queen Victoria statue as ____________.

A) wealth of history B) a landmark
C) Symbol of British rule D) Bengaluru culture
 
Answer & Explanation Answer: B) a landmark

Explanation:
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Filed Under: English
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0 17033
Q:

Select the antonym of

to amputate

A) to sever B) to fasten
C) to truncate D) to lop
 
Answer & Explanation Answer: B) to fasten

Explanation:
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0 17021
Q:

Which one of the following statements about India is not correct?

 

A) India has 12 major ports and about 200 non-major ports. B) 95 percent of India’s trade by volume and 68 percent by value are moved through maritime transport.
C) India has a coastline of about 7500 km. D) In the Maritime Agenda, 2010-2020, a target of 300 MT port capacity has been set for the year 2020.
 
Answer & Explanation Answer: D) In the Maritime Agenda, 2010-2020, a target of 300 MT port capacity has been set for the year 2020.

Explanation:

Statement 1 and 3 are factual and are correct.The Maritime Agenda projects a total traffic of 2494.95 million tonnes for all major and non-major ports taken together and a capacity of 3280.04 million tonnes. Hence, statement 4 is incorrect.

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0 17003
Q:

Rearrange the parts of the sentence in correct order.

If per capita income is taken

P-­as the measure then we are
Q­-away from 'great power' status
R­-still some distance

 

A) PRQ B) PQR
C) QPR D) RPQ
 
Answer & Explanation Answer: A) PRQ

Explanation:
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0 16991