Questions

Q:

The metal which reacts most violently with with cold water is

A) calcium B) sodium
C) magnesium D) potassium
 
Answer & Explanation Answer: D) potassium

Explanation:

Potassium reacts violently with water liberating hydrogen. The reaction is so violent that the liberated hydrogen catches fire.

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Filed Under: Chemistry

47 11676
Q:

What comes once in a year, twice in a week and never in a day?

A) Sunday B) New moon day
C) E D) All of the above
 
Answer & Explanation Answer: C) E

Explanation:

YEAR - 1 E

WEEK - 2 E

DAY - 0 E

 

Hence, the letter 'E', comes once in a year, twice in a week and never in a day.

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Filed Under: Logic Puzzles
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE , TOEFL
Job Role: Analyst , Bank Clerk , Bank PO

9 11675
Q:

The H.C.F. of two numbers is 23 and the other two factors of their L.C.M. are 13 and 14. The larger of the two numbers is:

A) 276 B) 299
C) 322 D) 345
 
Answer & Explanation Answer: C) 322

Explanation:

Clearly, the numbers are (23 x 13) and (23 x 14).

 

 

 

 Larger number = (23 x 14) = 322.

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Q:

The famous battle of Takkolam of South India was fought between _______

A) Cholas and North Chalukyas B) Cholas and Rashtrakutas
C) Cholas and Hoyasals D) Cholas and Pandyas
 
Answer & Explanation Answer: B) Cholas and Rashtrakutas

Explanation:
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Filed Under: Indian History

17 11671
Q:

Which team won the 10th Indian Premier League trophy 2017  ?

A) Mumbai Indians B) Rising Pune Supergiants
C) Kolkata Knight Riders D) Sunrisers Hyderabad
 
Answer & Explanation Answer: A) Mumbai Indians

Explanation:

In Cricket, Mumbai Indians lifted the 10th Indian Premier League trophy for the third time, as they recorded a scintillating 1-run win against Rising Pune Supergiant in the title clash at Hyderabad during final.  Mumbai successfully defended a total of 129 and restricted Pune to 128/6 to lift their third IPL trophy. Krunal Pandya from Mumbai Indians was named the man of the match.

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Filed Under: Sports

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Q:

Total internal reflection can take place when light travels from

A) Air to glass B) Air to water
C) Water to glass D) Diamond to glass
 
Answer & Explanation Answer: D) Diamond to glass

Explanation:
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Filed Under: Physics

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Q:

 What is the name of the virus that fool a user into downloading and executing them by pretending to be useful applications  ?

A) Trojan horses B) Keylogger
C) Worm D) File virus
 
Answer & Explanation Answer: A) Trojan horses

Explanation:
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Filed Under: Computer
Exam Prep: Bank Exams , CAT
Job Role: Analyst , IT Trainer

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Q:

Damage to hearing is caused by sounds which exceed

A) 70 decibels B) 80 decibels
C) 100 decibels D) 120 decibels
 
Answer & Explanation Answer: D) 120 decibels

Explanation:

High frequency sound attacks the tympanic memberance and makes it defective. 120 decibels is too high a pitch to be heard and therefore it impairs the hearing ability.

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Filed Under: Biology

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