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 (3130)
 Mechanical Engineering interview questions  Mechanical Engineering Interview Questions (3300)
 Electrical Engineering interview questions  Electrical Engineering Interview Questions (13439)
 Electronics Communications interview questions  Electronics Communications Interview Questions (2385)
 Chemical Engineering interview questions  Chemical Engineering Interview Questions (420)
 Aeronautical Engineering interview questions  Aeronautical Engineering Interview Questions (77)
 Bio Engineering interview questions  Bio Engineering Interview Questions (17)
 Metallurgy interview questions  Metallurgy Interview Questions (80)
 Industrial Engineering interview questions  Industrial Engineering Interview Questions (165)
 Instrumentation interview questions  Instrumentation Interview Questions (2401)
 Automobile Engineering interview questions  Automobile Engineering Interview Questions (107)
 Mechatronics Engineering interview questions  Mechatronics Engineering Interview Questions (38)
 Marine Engineering interview questions  Marine Engineering Interview Questions (45)
 Power Plant Engineering interview questions  Power Plant Engineering Interview Questions (80)
 Engineering AllOther interview questions  Engineering AllOther Interview Questions (1204)
Question
what is the relationship between psi,cfm & bar in the air 
compressor?
 Question Submitted By :: Mechanical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
cfm-cubic feet per minute 
Is This Answer Correct ?    59 Yes 8 No
Santosh Raikar
 
Answer
# 2
psi and bar is the units for pressures,
1bar = 14.503psi
psi---pounds per square inch.
bar---1 bar= 1 kg/cm2.
mention capacity of the compressor is in cfm
cfm - cubic feet per minute
 
Is This Answer Correct ?    40 Yes 3 No
K.n.sreekanth
 
 
 
Answer
# 3
These three mentions the Pressure of the Air
compressor.These actually are the units of Pressure in
various metric standards such as MKS, BTU and SI.
1. psi---pounds per square inch.
2. cfm--- dont know. help me
3. bar---1 bar= 1 kg/cm2. Unit of Pressure.
 
Is This Answer Correct ?    33 Yes 11 No
Magesh
 
Answer
# 4
Flow rates - CFM / l/min / M3/hr

1 CFM = 28.328 l / min
1 CFM = 1.699 M3 / hr

1 M3 / hr = 0.58857 CFM
1 M3 / hr = 16.667 l / min

1 l / min = 0.0353 CFM
1 l / min = 0.06 M3 / hr

Pressure - bar / psi / mbar / kPa

1 bar = 14.5 psi
1 bar = 1000 mbar
1 bar = 100 kPa

1 psi = 0.06895 bar
1 psi = 68.95 mbar
1 psi = 6.895 kPA

1 mbar = 0.001 bar

1 kPA = 0.01 bar

Volumes - litre / gallon / M3

1 litre = 0.219969 gallon
1 litre = 0.001 M3

1 gallon = 4.54609 litre
1 gallon = 0.004546 M3

1 M3 = 1000 litres
1 M3 = 219.969 gallon

Electrical Power - KW / HP

1 KW = 1.341 HP
1 HP = 0.746 KW

Heat Dissipation - KW - Btu/h

1 KW = 3412.14 Btu/h
1 Btu/h = 0.000293 KW
 
Is This Answer Correct ?    16 Yes 1 No
Sourabh Sharma
 
Answer
# 5
capacity is calculated by cfm & pressure is calculated in psi & bar
CFM = Piston displacement x (1+m-m(pd/ps)exp1/n)

m= percent head clearance expressed as a decimel
pd = discharge pressure = psia x .069 = BAR
ps = suction pressure = psia x .069 = BAR

n=1.2 to 1.35
& 1 bar = 14.50 psi
 
Is This Answer Correct ?    12 Yes 2 No
Pankaj Singh Pathania
 
Answer
# 6
psi and bar is the units for pressures,
1bar = 14.503psi
psi---pounds per square inch.
bar---1 bar= 1 kg/cm2.
mention capacity of the compressor is in cfm
cfm - cubic feet per minute
 
Is This Answer Correct ?    1 Yes 0 No
M.ranjithkumar
 
Answer
# 7
I need 2CFM & 10 Bar pressure what compressor should I install in KW? 
Is This Answer Correct ?    0 Yes 0 No
Mueen Ud Din Bajwa
 
Answer
# 8
psi and bar is the units for pressures,
1bar = 14.503psi
psi---pounds per square inch.
bar---1 bar= 10^5 pascals
= 100000 N/m2
= (100000* 10kg)/(10^4 cm2)
= 100 kg/cm2
 
Is This Answer Correct ?    6 Yes 10 No
Karteek
 

 
 
 
Other Mechanical Engineering Interview Questions
 
  Question Asked @ Answers
 
In what principal an hydraulic governor does work?   2
why spur gear making noise douring running, why spur gear teeth get crack, what is the effect of heat treatment on spur gear how to reduce the noise bet gear   1
2+2? Toyota 6
For maximum capacity of compressor inlet temperature of air should be high, low, very high. BEL 7
What are the lubricating system of an IC engine?   9
The capacity of the compressor is considered to be maximum when the temperature of the air is a.Maximum b.minimum c.moderate d.   10
Air is a bad conductor of heat.why it becomes hot in summer?   2
difference between performance and efficiency?   14
Can you explain,what is entropy?Also tell us what happened in terms of ENTROPY when you give heat to a sealed tube containing half of water? NTPC 5
WHAT IS THE FULL FORM FOR KGF IN THE PIPE OR SHEET THICKNESS. Sanmar 4
What is daught, what kind of draught used in boiler chimney Nalco 8
Respected Sir, I am preparing for J.E of RRB Chennai.Please send me all RRB Chennai solved paper in the year of 2004 to till date. My ID is musini_p@rediffmail.com Thanking you sir, Anand   1
 
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