A. atmospheric
B. slightly more than atmospheric
C. slightly less than atmospheric
D. pressure slightly more than atmospheric and temperature slightly less than atmospheric
E. pressure sightly less than atmospheric and temperature slightly more than atmospheric
Mechanical Engineering Mcqs
Mechanical Engineering Mcqs for Preparation of Job Test and interview, freshers, Students, competitive exams etc. Multiple choice questions here are on topics such as Machine Design, Theory of Machines, Hydraulic Machines etc.
Isothermal compression efficiency, even when running at high speed, can be approached by using
A. multi-stage compression
B. cold water spray
C. both A. and B. above
D. fully insulating the cylinder
E. high stroke
A. at very high speed
B. at very slow speed
C. at average speed
D. at zero speed
E. isothermally
A. isothermally
B. adiabatically
C. isentropically
D. isochronically
E. as per law pV
A. temperature during compression remains constant
B. no heat leaves or enters the compressor cylinder during cornpression
C. temperature rise follows a linear relationship
D. work done is maximum
E. entropy decreases
A. maximum
B. minimum
C. zero
D. non-zero finite
E. unpredictable
A. less than 2000
B. between 2000 and 4000
C. more than 4000
D. less than 4000
E. none of the above
A. gravity, pressure and viscous
B. gravity, pressure and turbulent
C. pressure, viscous and turbulent
D. gravity, viscous and turbulent
E. none of the above
A. energy
B. work
C. mass
D. length
E. time
A. unity
B. greater than unity
C. greater than 2
D. greater than 4
E. greater than 10
