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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31 17083
Q:

Improve the bracketed part of the sentence.

 

Perhaps a greater challenge they face is (improving the wounds of the civil war), Iraq is a divided country today.

A) counting the effects of the civil war B) curing the aftermaths of the civil war
C) healing the wounds of the civil war D) No improvement
 
Answer & Explanation Answer: C) healing the wounds of the civil war

Explanation:
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Q:

Select the antonym of

pejorative

A) rude B) complimentary
C) derisive D) cheeky
 
Answer & Explanation Answer: B) complimentary

Explanation:
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2 17073
Q:

Improve the bracketed part of the sentence.

 

(It is no good to cry) over past failures.

 

A) It is of no good crying B) It is of no good to cry
C) It is no good crying D) no improvement
 
Answer & Explanation Answer: C) It is no good crying

Explanation:
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0 17062
Q:

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

There's more than the 101-seater dining table at the Falaknuma Palace that is awe inspiring. The library done in rosewood and mahogany is a place that will force anyone to pause, if only to admire the fine original polish, the furniture and the walnut carved high roof. The last is supposedly an imitation of the one at Windsor Castle.

The library is almost the size of a large banquet hall and acts as the passage to other parts of the palace including the dining area. For years the palace had no librarian because they couldn't find the right person to do justice to the treasure trove of books collected by the Nizam's family over several decades. That is until they found Asif Husain Arastu who belongs to the family that owned the famous A A Husain book store in Abids. So when his friend and historian Anuradha Naik pointed out the palace's requirement at the library, Husain was delighted. On his very first day as the librarian at the magnificent Taj Falaknuma palace, Asif Husain found a reference book on 'How to paint grass' by Alfred East.

The roof of the library had carvings made of which wood?

A) Rosewood B) Mahogany
C) Sandalwood D) Walnut
 
Answer & Explanation Answer: D) Walnut

Explanation:
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0 17057
Q:

How is the nitrogen taken up by the plants?

I. In the form of inorganic nitrates or nitrites
II. In the form of organic compounds
III. Directly taken up from the atmosphere

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

Explanation:
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1 17047
Q:

Select the synonym of

scarcity

A) opulence B) myriad
C) plethora D) dearth
 
Answer & Explanation Answer: D) dearth

Explanation:
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1 17038
Q:

Improve the bracketed part of the sentence.

 

(It is been seen) as a "prestige battle" for the PM and a litmus test for the president of the opposition party.

 

A) It have been seen B) It is being seen
C) It had being seen D) No improvement
 
Answer & Explanation Answer: B) It is being seen

Explanation:
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