Exams


Q:

D.C Series motor never operated on 

A) Full Load B) Half Load
C) No Load D) At any Load
 
Answer & Explanation Answer: C) No Load

Explanation:

D.C series motor both armature and feild connected in series at noload condition current drawn by the motor is zero Ia=0 flux also zero. but very small amount of flux avalible because of residual magnetism

in series motor speed  =  N α Eb/Φ Eb almost conistant

                                 =    N α 1/Φ

At no load condition d.c series can be run as dangerously very high so d.c series motor
operated at load condition only

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Filed Under: General Awareness
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Q:

Two cyclists A and B start cycling at 21 km/hr and 24 km/hr towards each other. They meet after 1 hour and 12 minutes. How far (in km) were they from each other when they started?

A) 48 B) 42
C) 54 D) 36
 
Answer & Explanation Answer: C) 54

Explanation:
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Filed Under: Time and Distance
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Q:

A passage is given with 5 questions following it. Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.

 

Man's attitude to various animals changed many times in the course of centuries. From indifference or practicality, he went on to adoration and deification, and then to hatred. Ancient Egyptians, for example, highly appreciated the cat's ability to destroy rodents. The cat was much superior in this respect to the grass­snakes and weasels they had kept in their houses before. These proved unable to cope with hordes of rats which invaded Egypt from Asia. So the cat, a very useful animal, was ranked as a sacred animal and one of the most important animals, too. The goddess of the Moon, fertility and child­birth, Bast herself was portrayed by the Egyptians as a woman with a cat's head.

Sumptuous temples were built to this goddess, where cats were kept in luxury and fed the choicest of foods. They had their own priests and votaries, more numerous as a matter of fact than any other sacred animal could boast. According to the Greek historian Herodotus, the festival in the city of Bubastis, which had a temple dedicated to cats, was attended by as many as 700 thousand, who brought their offerings to the goddess in the shape of figurines of her made of gold, silver and bronze and adorned with precious stones.

 

Hordes of rats invaded Egypt. They came from _____ .

A) Europe B) Asia
C) Asia Minor D) Africa
 
Answer & Explanation Answer: B) Asia

Explanation:
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Filed Under: English
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Q:

Four words are given, out of which only one word is spelt correctly. Choose the correctly spelt word and click the button corresponding to it.

A) Desorientation B) Disorientetion
C) Dysorientation D) Disorientation
 
Answer & Explanation Answer: D) Disorientation

Explanation:
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Filed Under: English
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Q:

What is the name of the acid in grapes?

A) Lactic acid B) Formic acid
C) Acetic acid D) Tartaric acid
 
Answer & Explanation Answer: D) Tartaric acid

Explanation:
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Filed Under: Chemistry
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Q:

The washing machine works on the principle of ____________

A) Dialysis B) Diffusion
C) Reverse osmosis D) Centrifugation
 
Answer & Explanation Answer: D) Centrifugation

Explanation:
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Filed Under: Physics
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Q:

The length of the diagonal and the breadth of a rectangle is 26 cm and 10 cm respectively. Calculate its area (in cm2).

A) 480 B) 96
C) 240 D) 192
 
Answer & Explanation Answer: C) 240

Explanation:
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Filed Under: Area
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Q:

In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence.

 

Making a loud and confused noise

 

A) Reticent B) Clamorous
C) Laconic D) Bashful
 
Answer & Explanation Answer: B) Clamorous

Explanation:
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Filed Under: English
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