Bank Exams Questions

Q:

At what temperature do pathogenic bacteria grow best in food?

A) 5 to 15 degrees Celsius B) 15 to 25 degrees Celsius
C) 20 to 45 degrees Celsius D) 40 to 65 degrees Celsius
 
Answer & Explanation Answer: C) 20 to 45 degrees Celsius

Explanation:

The Bacteria that causes Food Borne illness are called Food Borne Pathogens. Most of the pathogens are mesophilic in nature, optimum temperature may be around 20-45 degree celsius. This range of temperatures is often called the "Danger Zone." Dry foods do not support the growth of bacteria.

 

In order to kill pathogenic bacteria you need temperatures above 74ºC. Temperature is the easiest factor to control in order to prevent bacterial growth.

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Q:

Read the following question and decide which of the given arguments is/are strong.

 

Question : Should CBSE introduce the retention system till Class 10?

 

Argument 1 : The foundations laid in lower classes are important for higher education.


Argument 2 : It is boring for a student to repeat the same class again.

 

A) only arguments 2 is strong. B) Both arguments 1 and 2 are strong.
C) Neither arguments 1 nor 2 is strong D) only argument 1 is strong.
 
Answer & Explanation Answer: D) only argument 1 is strong.

Explanation:
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Q:

Rank these compounds by boiling point- Pentane, Propane and Hexane.

A) Pentane > Propane > Hexane B) Propane > Pentane > Hexane
C) Hexane > Pentane > Propane D) Propane > Hexane > Pentane
 
Answer & Explanation Answer: C) Hexane > Pentane > Propane

Explanation:

The boiling point of the compounds depend on the number of carbons in them. Hexane has 6, Pentane has 5 and Propane has 3 carbons. As Hexane is with 6 carbons it has highest boiling point and next Pentane with 5 and lowest Propane with 3. 

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Q:

Electromagnetic waves are transverse in nature is evident by

A) Reflection B) Polarisation
C) interference D) Diffraction
 
Answer & Explanation Answer: B) Polarisation

Explanation:
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Q:

Solve this math logical puzzle

how_many_total_digits1560511557.jpg image

A) 192 B) 180
C) 196 D) 189
 
Answer & Explanation Answer: A) 192

Explanation:

Pages are denoted as 

1 - 9 = 09

10 - 99 = 90*2 = 180

100 = 03

 

Hence, total number of digits = 09 + 180 + 03 = 192.

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Q:

Each model of a computer has a unique

A) High level language B) Assembly language
C) Both A & B D) Machine language
 
Answer & Explanation Answer: D) Machine language

Explanation:

Each model of a computer has a unique machine language.

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Q:

Who is the richest person in the world 2018?

A) Jeff Bezos B) Bill Gates
C) Warren Buffets D) Mark Zuckerberg
 
Answer & Explanation Answer: A) Jeff Bezos

Explanation:

Jeff Bezos is the richest person in modern history. The Amazon.com Inc. founder’s net worth broke $150 billion in New York on 16th July 2018 morning, according to the Bloomberg Billionaires Index.

 

 jeff_bezos1531830665.jpg image

 

That’s about $55 billion more than Microsoft Corp. co-founder Bill Gates, the world’s second-richest person.

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Q:

Which path through the carbon cycle is possible?

A) Animal ----> Plant ----> Atmosphere B) Plant ----> Animal ----> Atmosphere
C) Atmosphere ----> Plant ----> Animal D) Plant ----> Atmosphere -----> Animal
 
Answer & Explanation Answer: B) Plant ----> Animal ----> Atmosphere

Explanation:

During daylight hours, plants capture carbon dioxide from the atmosphere and use it to make carbohydrates which is stored as starch in the plant. Animals feed on the plants and extract the carbohydrates through their digestive system. The carbohydrates, namely glucose, are used by the animals for production of ATP through cellular respiration.

 

Cellar respiration in the animals produces carbon dioxide as a waste product. The carbon dioxide is released into the atmosphere, from where it is again captured by plants and the cycle is repeated.

 

Hence, option B) Plant ----> Animal ----> Atmosphere is the path possible in carbon cycle.

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