A. two isothermals and two isentropics
B. two isentropics, and two constant volumes.
C. two isentropics, one constant volume and one constant pressure
D. two isentropics and two constant pressures
E. none of the above
Related Mcqs:
- Otto cycle consists of following four processes____________________?
A. two isothermals and two isentropics
B. two isentropics and two constant volumes
C. two isentropics, one constant volume and one constant pressure
D. two isentropics and two constant pres-sures
E. none of the above - Brayton cycle consists’ of following four processes____________________?
A. two isothermals and two isentropics
B. two isentropics and two constant volumes
C. two isentropics, one constant volume and one constant pressure
D. two isentropics and two constant pres-sures
E. none of the above - The thermodynamic difference between a Rankine cycle working with saturated steam and the Carnot cycle is that___________________?
A. carnot cycle can’t work with saturated steam
B. heat is supplied to water at temperature below the maximum temperature of the cycle
C. a rankine cycle receives heat at two places
D. rankine cycle is hypothetical
E. none of the above - Gas turbine cycle consists of___________________?
A. two isothermals and two isentropics
B. two isentropics and two constant volumes
C. two isentropics, one constant volume and one constant pressure
D. two isentropics and two constant pressures
E. none of the above - In order that a cycle be reversible, following must be satisfied ________________?
A. free expansion or friction resisted expansion/compression process should not be encountered
B. when heat is being absorbed, temperature of hot source and working sub¬stance should be same
C. when beat is being rejected, temperature of cold source and working sub-stance should be same
D. all of the above
E. none of the above - The following cycle is used for air craft refrigeration___________________?
A. Brayton cycle
B. Joule cycle
C. Carnot cycle
D. Bell-Coleman cycle
E. Reversed-Brayton cycle - Carnot cycle efficiency is maximum when______________?
A. initial temperature is 0°K
B. final temperature is 0°K
C. difference between initial and final temperature is 0°K
D. final temperature is 0°C
E. initial temperature is minimum possible - The cycle in which heat is supplied at constant volume and rejected at constant pressure is known as_________________?
A. Dual combustion cycle
B. Diesel cycle
C. Atkinson cycle
D. Rankine cycle
E. Stirling cycle - The efficiency of Diesei cycle with decrease in cut off_________________?
A. increases
B. decreases
C. remains unaffected
D. first increases and then decreases
E. first decreases and then increases - Carnot cycle efficiency depends upon________________?
A. properties of the medium/substance used
B. condition of engine
C. working condition
D. temperature range of operation
E. effectiveness of insulating material around the engine
