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Q:

An assertion (A) and a reason (R) are given below.

 

Assertion (A) : Electric wires are generally made of copper.

 

Reason (R) : Copper is a good conductor.

 

Choose the correct option.

 

A) Both A and R are true and R is the correct explanation of A B) Both A and R are true, but R is not the correct explanation of A
C) A is true, but R is false D) A is false, but R is true
 
Answer & Explanation Answer: A) Both A and R are true and R is the correct explanation of A

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Filed Under: Statement and Conclusions
Exam Prep: Bank Exams

Q:

Aqueous solution of copper sulphate?

A) does not affects litmus B) affects both red and blue litmus
C) turns blue litmus red D) turns red litmus blue
 
Answer & Explanation Answer: C) turns blue litmus red

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Filed Under: Chemistry
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Q:

In an alloy of German silver the ratio of copper to zinc was 17:7 while that of nickel to zinc was 4 :3. The ratio of copper to zinc to nickel in the alloy was

A) 17 : 21 : 4 B) 51 : 21 : 28
C) 68 : 28 : 21 D) 17 : 28 : 3
 
Answer & Explanation Answer: B) 51 : 21 : 28

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

Q:

The copper wire when bent in the form of a square encloses an area of 121 cub.cm. If the same wire is bent into the form of a circle, find the area of the circle.

A) 154 sq.cm B) 153 sq.cm
C) 155 sq.cm D) 150 sq.cm
 
Answer & Explanation Answer: A) 154 sq.cm

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

Q:

In the following question the 1st and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/ passage is split into four parts and named P, Q, R and S. These four parts are not given in their proper order. Read the sentence/ passage and find out which of the four combinations is correct.

 

1. Making ropes is one of the oldest trades in the world.
P. People used them for tethering animals, for drawing water from wells and for dragging large stones which were used in building.
Q. We know that people made ropes several centuries back.
R. They made them from camel hair and from twisted grass.
S. We have found pieces of rope in very old Egyptian tombs.
6. We have found too, ropes which were made of thin copper wire in the city of Pompeii, which was destroyed by a volcano 2000 years ago.

 

A) QSRP B) PRQS
C) SQPR D) QSPR
 
Answer & Explanation Answer: A) QSRP

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Filed Under: English
Exam Prep: Bank Exams

Q:

An alloy contains copper and tin in the ratio 3 : 2. If 250 gm of copper is added to this alloy then the copper in it becomes double the quantity of tin in it. What is the amount (in gm) of tin in the alloy?

A) 250 B) 750
C) 1000 D) 500
 
Answer & Explanation Answer: D) 500

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

Q:

In two types of brass, the ratios of Copper to Zinc are 8:3 and 15:7 respectively. If the two types of brass be melted and mixed in the ratio 5:2 a new type of brass is obtained. The ratio of Copper to Zinc in this new type of brass is

A) 3:2 B) 2:3
C) 3:4 D) 5:2
 
Answer & Explanation Answer: D) 5:2

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

Q:

In an ornament the ratio of gold and copper is 3:2. The percentage of gold in the ornament is:

A) 60 B) 40
C) 30 D) 20
 
Answer & Explanation Answer: A) 60

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Filed Under: Percentage
Exam Prep: Bank Exams