Related Questions

Isothermal compression efficiency can be attained by running the compressor
A At very high speed
B At very slow speed
C At average speed
D At zero speed
The work done in isothermal compression compared to that in adiabatic compression will be
A Less
B More
C Same
D More or less depending upon the extent of work done
In multistage compressor, the isothermal compression is achieved by
A Employing inter-cooler
B By constantly cooling the cylinder
C By running compressor at very slow speed
D By insulating the cylinder
Isothermal compression though most efficient, but is not practicable because
A It requires very big cylinder
B It does not increase pressure much
C It is impossible in practice
D Compressor has to run at very slow speed to achieve it
For an isothermal reversible compression of an ideal gas
A Only ΔE = 0
B Only ΔH =0
C ΔE = ΔH = 0
D DQ = dE
The change in __________ is equal to the reversible work for compression in steady state flow process under isothermal condition.
A Internal energy
B Enthalpy
C Gibbs free energy
D Helmholtz free energy
Roni is running on the ground who has been running a business for a year and his is a running business. What are the differences among the underlined words respectively?
A Finite Verb, Infinite Verb, continous
B Transitive, Intransitive, Gerund
C Transitive, Intransitive, Adjective
D Present Continuous, Perfect Continuous, Gerund
A train running at the speed of 25 m/s takes 10 seconds to pass a man running at the speed of 10 m/s in the opposite direction. Find the length of the train.
A 150 meters
B 200 meters
C 250 meters
D 350 meters
A 270 m long train running at the speed of 120 km /hr crosses another train running in opposite direction at the speed of 80 km/hr in 9 seconds. What is the length of the other train?
A 230 m
B 240 m
C 260 m
D 320 m
The overall isothermal efficiency of the compressor is defined as the ratio of
A Work required to compress the air isothermally to the actual work required to compress the air for the same pressure ratio
B Isothermal power to the shaft power or B.P. of the motor or engine required to drive the compressor
C Volume of free air delivery per stroke to the swept volume of the piston
D Isentropic power to the power required to drive the compressor

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