Questions

Q:

Puzzle : Bridge Crossing

Jim, Jeanne, Louis and Anne wants to cross the bridge at night. They have only one torch light with them. Only two can cross the bridge at a time. They need torch light to cross the bridge. Each of them walks at a different speed. Jim needs 1 minute, Jeanne needs 2 minutes, Louis needs 5 minutes and Anne needs 10 minutes. A pair must walk together at the rate of the slower person. How these people can cross the bridge within 17 minutes?

Answer

First Jim and Jeanne walks across the bridge, it takes 2 minutes. 


Jim walks back with the torch light, which takes 1 minute. 


Then Louis and Anne walk on the bridge, which takes 10 minutes.


Jeanne comes back with the torch light, it takes 2 minutes.


Finally Jim and Jeanne walks across the bridge, which takes 2 minutes.


Total = 2 + 1 + 10 + 2 + 2 = 17 minutes

Report Error

View answer Workspace Report Error Discuss

Subject: Math Puzzles

17 8748
Q:

At the Curie temperature, the ferromagnetic materials get converted into

A) Diamagnetic materials B) Non-magnetic materials
C) Paramagnetic materials D) None of the others
 
Answer & Explanation Answer: C) Paramagnetic materials

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: AIEEE

18 8735
Q:

Who was the first posthumous recipient of Bharat Ratna  ?

A) B.R. Ambedkar B) Lal Bahadur Shastri
C) K. Kamraj D) M.G. Ramachandran
 
Answer & Explanation Answer: B) Lal Bahadur Shastri

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Famous Personalities

9 8731
Q:

Availability management is responsible for availability of

A) IT infrastructure B) Tools
C) Processes D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

ITIL Availability Management aims to define, analyze, plan, measure and improve all aspects of the availability of IT services. It is is responsible for ensuring that all IT infrastructure, processes, tools, roles etc are appropriate for the agreed availability targets.

Report Error

View Answer Report Error Discuss

39 8729
Q:

What is the primary component of natural gas?

A) Nitrogen B) Ethane
C) Propane D) Methane
 
Answer & Explanation Answer: D) Methane

Explanation:

Natural gas is primarily composed of methane, but also contains ethane, propane, and heavier hydrocarbons.

 

Natural gas is a colorless, tasteless, odorless, and non-toxic gas. Because it is odorless, mercaptan is added to the natural gas, in very small amounts to give the gas a distinctive smell of rotten eggs. This strong smell can alert you of a potential gas leak.

 

It also contains small amounts of nitrogen, carbon dioxide, hydrogen sulphide and trace amounts of water.

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams
Job Role: Analyst , Bank Clerk , Bank PO

9 8728
Q:

Effective teamwork and high productivity are good indications of positive

A) productivity goals B) reinforcement
C) horizontal relationships D) socializing
 
Answer & Explanation Answer: A) productivity goals

Explanation:

In general, we know that Effective teamwork yields high productivity which is a good indications of positive productivity goals.

Report Error

View Answer Report Error Discuss

Filed Under: Manufacturing
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

5 8725
Q:

Is SiCl4 polar or nonpolar?

A) Polar B) non polar
C) Both A & B D) None of the above
 
Answer & Explanation Answer: B) non polar

Explanation:

SiCl4 is a non polar as the forces of attraction between the shared pair of electrons are equal and the molecule is symmetric.

is_sicl4_polar_or_nonpolar1537793915.jpg image

Report Error

View Answer Report Error Discuss

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

7 8713
Q:

In nuclear reactor the speed of neutrons is slowed down by

A) heavy water B) ordinary water
C) Zinc rods D) molten caustic soda
 
Answer & Explanation Answer: A) heavy water

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry

12 8710