GRE Questions

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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Q:

In the following question, a sentence has been given in Active/Passive voice. Out of the four alternatives suggested, select the one which best expresses the same sentence in Passive/Active voice.

 

You need to water the plants daily.

A) You need to daily be watering the plants. B) The plants need to be watered daily by you.
C) You water the plants, as it is their daily need. D) Daily watering of the plants is need by you.
 
Answer & Explanation Answer: B) The plants need to be watered daily by you.

Explanation:
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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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Q:

A sentence has been given in Active/Passive Voice. Out of the four given alternatives, select the one which best expresses the same sentence in Passive/Active Voice.

 

He refused them donation.

 

A) They was refused donation. B) They refused donation by him.
C) They were refused donation by him. D) They were refused donation.
 
Answer & Explanation Answer: C) They were refused donation by him.

Explanation:
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Q:

In the following question, out of the given four alternatives, select the one which best expresses the meaning of the given word.

 

Debonair

 

A) Elegant B) Awkward
C) Clumsy D) Difficult
 
Answer & Explanation Answer: A) Elegant

Explanation:
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Q:

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

The warning bells __________several times before anyone realized the danger.

A) were ringing B) had rung
C) had rang D) would have rung
 
Answer & Explanation Answer: B) had rung

Explanation:
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Q:

The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form acoherent paragraph.

 

After dinner, my

 

A-the kitchen and offered to show

B-me what a dishwasher was

C-hostess followed me into

 

A) BCA B) BAC
C) ACB D) CAB
 
Answer & Explanation Answer: D) CAB

Explanation:
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Q:

In the following question, a sentence has been given in Active/Passive voice. Out of four alternatives suggested, select the one, which best expresses the same sentence in Passive/Active voice.


I took the grinder yesterday.

A) The grinder was took by me yesterday. B) The grinder was took by me the day before.
C) The grinder had been took by me the day before. D) The grinder was taken by me yesterday.
 
Answer & Explanation Answer: D) The grinder was taken by me yesterday.

Explanation:
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