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Q:

Brass gets discoloured in air because of the presence of which of the following gases in air  ?

A) Hydrogen sulphide B) Oxygen
C) Nitrogen D) Carbon dioxide
 
Answer & Explanation Answer: A) Hydrogen sulphide

Explanation:
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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Bank Clerk , Bank PO

145 29807
Q:

A boat takes 19 hours for travelling downstream from point A to point B and coming back to a point C which is at midway between A and B. If the velocity of the stream is 4 kmph and the speed of the boat in still water is 14 kmph, what is the distance between A and B ? 

A) 180 km B) 160 km
C) 140 km D) 120 km
 
Answer & Explanation Answer: A) 180 km

Explanation:

Speed in downstream = (14 + 4) km/hr = 18 km/hr;

Speed in upstream = (14 – 4) km/hr = 10 km/hr.

Let the distance between A and B be x km. Then,

x/18 + (x/2)/10 = 19 ⇔ x/18 + x/20 = 19 ⇒ x = 180 km.

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Filed Under: Boats and Streams
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

90 29756
Q:

Which among the following is/are All India Service(s)?
I. Indian Administrative Service
II. Indian Police Service
III. Indian Forest Service

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

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Filed Under: General Awareness
Exam Prep: Bank Exams

0 29754
Q:

Choose the box that is similar to the box formed from the given sheet of paper (A).

111484628842.png image

      (A)

1111484628875.png image

A) Option 1,2 and 3 B) Option 1,3 and 4
C) Option 2 and 3 D) Option 2,3 and 4
 
Answer & Explanation Answer: B) Option 1,3 and 4

Explanation:

When the sheet in fig. (A) is folded, then one of the faces of the cube formed will be of the form 14-11484629084.png image  and this face will lie opposite the face bearing a square. Also, one of the blank faces lies opposite another blank face and the third blank face lies opposite the face bearing an '=' sign. Clearly, all the three blank faces cannot appear adjacent to each other. So, the cube shown in fig. (2) which has all the three blank faces adjacent to each other cannot be formed. Hence, only the cubes shown in figures A, C and D can be formed.

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Filed Under: Cubes and Dice
Exam Prep: Bank Exams
Job Role: Bank Clerk

75 29749
Q:

Find the volume (in cm³) of a cube of side 4.5 cm.

 

A) 55.467   B) 14.445  
C) 91.125   D) 26.465
 
Answer & Explanation Answer: C) 91.125  

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

2 29732
Q:

Which of the following muscular tissue is multinucleated?

 

A) Smooth muscle B) Cardiac muscle  
C) Skeletal muscle D) Unstriated muscle
 
Answer & Explanation Answer: C) Skeletal muscle

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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams

0 29691
Q:

Who first discovered the every eighth element had properties similar to that of the first?

 

A) Newlands B) Moseley
C) Dobereiner D) Mendeleev
 
Answer & Explanation Answer: A) Newlands

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Filed Under: Chemistry
Exam Prep: Bank Exams

1 29680
Q:

Improve the bracketed part of the sentence.

You can always count (at me) in difficult times.

 

A) upon me B) on me
C) on I D) no improvement
 
Answer & Explanation Answer: B) on me

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Filed Under: English
Exam Prep: Bank Exams

0 29678