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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
Exam Prep: Bank Exams

4 91319
Q:

Improve the bracketed part of the sentence.

Grandfather has said so out of affection, do not take (to) heart.

 

A) into B) it to
C) it by D) no improvement
 
Answer & Explanation Answer: B) it to

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

0 91066
Q:

Rearrange the parts of the sentence in correct order.

The economic

P : a country leads to exponential

Q : growth of that country

R : empowerment of women of

 

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

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

0 90877
Q:

Improve the bracketed part of the sentence.

The passengers (were waited) for the flight at the emigration lobby, for long.

A) had wait B) had been waited
C) have been waiting D) no improvement
 
Answer & Explanation Answer: C) have been waiting

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

0 90656
Q:

Improve the bracketed part of the sentence.

The other shirt (will cost) you more.

A) would cost B) will be costing
C) could be costing D) no improvement
 
Answer & Explanation Answer: D) no improvement

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

0 90624
Q:

Select the synonym of

to gnaw

 

A) to drool B) to slaver
C) to nibble D) to spit
 
Answer & Explanation Answer: C) to nibble

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

2 90483
Q:

Select the antonym of

sibilate

A) whiz B) boo
C) exalt D) rasp
 
Answer & Explanation Answer: C) exalt

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

0 90136
Q:

Which word or words explains the meaning of the following idioms:-

To flog a dead horse

A) To act in a foolish way B) To waste one’s efforts
C) To revive interest in an old subject D) To revive old memories
 
Answer & Explanation Answer: B) To waste one’s efforts

Explanation:

To flog a dead horse means to waste effort on something when there is no chance of succeeding.

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Filed Under: English
Exam Prep: Bank Exams

1 89936