ALLInterview.com :: Home Page            
 Advertise your Business Here     
Browse  |   Placement Papers  |   Company  |   Code Snippets  |   Certifications  |   Visa Questions
Post Question  |   Post Answer  |   My Panel  |   Search  |   Articles  |   Topics  |   ERRORS new
   Refer this Site  Refer This Site to Your Friends  Site Map  Bookmark this Site  Set it as your HomePage  Contact Us     Login  |  Sign Up                      
Google
   
 
Categories >> Engineering >> Mechanical Engineering
 
 


 

 
 Civil Engineering interview questions  Civil Engineering Interview Questions (3076)
 Mechanical Engineering interview questions  Mechanical Engineering Interview Questions (3289)
 Electrical Engineering interview questions  Electrical Engineering Interview Questions (13330)
 Electronics Communications interview questions  Electronics Communications Interview Questions (2363)
 Chemical Engineering interview questions  Chemical Engineering Interview Questions (416)
 Aeronautical Engineering interview questions  Aeronautical Engineering Interview Questions (77)
 Bio Engineering interview questions  Bio Engineering Interview Questions (17)
 Metallurgy interview questions  Metallurgy Interview Questions (79)
 Industrial Engineering interview questions  Industrial Engineering Interview Questions (163)
 Instrumentation interview questions  Instrumentation Interview Questions (2378)
 Automobile Engineering interview questions  Automobile Engineering Interview Questions (106)
 Mechatronics Engineering interview questions  Mechatronics Engineering Interview Questions (38)
 Marine Engineering interview questions  Marine Engineering Interview Questions (43)
 Power Plant Engineering interview questions  Power Plant Engineering Interview Questions (77)
 Engineering AllOther interview questions  Engineering AllOther Interview Questions (1196)
Question
working principle of ballpoint pen?
 Question Submitted By :: Mechanical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
HYDRODYNAMIC LUBRICATION

Pen is fitted with a tiny ball bearing in its tip. As the pen moves along the paper, the ball rotates picking up ink from the ink cartridge and leaving it on the paper.
 
Is This Answer Correct ?    35 Yes 10 No
Vijaygadu
 
Answer
# 2
it works on two principles
- frictional force between pen and paper.
- gravitaional force due to which ink flows in downward direction.
 
Is This Answer Correct ?    19 Yes 6 No
Atul Tripathi
 
 
 
Answer
# 3
it works on the principle of gravitational force.due to
gravitational force ink flows downword direction.
 
Is This Answer Correct ?    7 Yes 0 No
Shivaji
 
Answer
# 4
ball pen functions on the principle of surface tension 
Is This Answer Correct ?    8 Yes 3 No
Suguna
 
Answer
# 5
Ball is fixed in the tip of the pen. Ball is rotated by the
friction with paper.due to capillary action (the gap
between ball and ball holder is min) the ink flows between
ball and ball holder and it is printed on the paper.
 
Is This Answer Correct ?    6 Yes 3 No
Rajasekar
 
Answer
# 6
-gravitaional force due to which ink flows in downward
direction.
 
Is This Answer Correct ?    3 Yes 1 No
Thirupati
 
Answer
# 7
friction between pen and paper 
Is This Answer Correct ?    7 Yes 22 No
Navdeep
 

 
 
 
Other Mechanical Engineering Interview Questions
 
  Question Asked @ Answers
 
what will be the velosity of a water at in the pipe of 6 inches which is situated at the bottom of 10 mtr tank ? Essar 1
What is the purpose of jockey oil pump in turbine.generator..????   2
what is mean dual combustion turbocharged? CAT 2
How do you weld 25 mm thick plate? Essar 11
welding strength depends on MahaGenco 4
what is mist lubrication?give examples where it is used?   1
. What is the hottest part of refrigerant in the refrigeration system   3
what is the relationship between psi,cfm & bar in the air compressor? Jindal 8
In order to ensure constant pressure and constant flow rate of compressed air what should we put between the compressor and end user? NTPC 10
What are the career paths in this position?   1
i am prepared for the rrb section engineer, please help me to guide , how to prepare and which books are good for technical, aptitude(arthimetic, resonning and g.k), send details to me by email: sudhakar.gudditi@gmail.com   1
how can calculate how much steam is to be required for generation of 1MW electricty? NTPC 7
 
For more Mechanical Engineering Interview Questions Click Here 
 
 
 
 
 


   
Copyright Policy  |  Terms of Service  |  Articles  |  Site Map  |  RSS Site Map  |  Contact Us
   
Copyright 2013  ALLInterview.com.  All Rights Reserved.

ALLInterview.com   ::  KalAajKal.com