Related Questions

On Mollier chart, free expansion, or throttling process from high pressure to atmosphere is represented by
A Horizontal straight line
B Vertical straight line
C Straight inclined line
D Curved line
Mollier chart is a __________ plot.
A Pressure vs enthalpy
B Pressure vs volume
C Enthalpy vs entropy
D Temperature vs entropy
Mollier diagram is a plot of
A Temperature vs. enthalpy
B Temperature vs. enthalpy
C Entropy vs. enthalpy
D Temperature vs. internal energy
High pressure steam is expanded adiabati-cally and reversibly through a well insulated turbine, which produces some shaft work. If the enthalpy change and entropy change across the turbine are represented by ΔH and ΔS respectively for this process:
A ΔH = 0 and ΔS = 0
B ΔH ≠ 0 and ΔS = 0
C ΔH ≠ 0 and ΔS ≠ 0
D ΔH = 0 and ΔS ≠ 0
The specific speed of a turbine is the speed of an imaginary turbine, identical with the given turbine, which
A Delivers unit discharge under unit head
B Delivers unit discharge under unit speed
C Develops unit power under unit head
D Develops unit power under unit speed
Water flows into an empty 64-gallon drum through pipe A and flows out through pipe B. If the rate of flow through A is 2 gallons/hour, how many gallons per hour must flow out through pipe B so that the drum is full in exactly 96 hours?
A 3/8
B 1/2
C 2/3
D 4/3
The energy loss in flow through ven-turimeter is less than that through flow nozzle, because in case of a flow nozzle, the
A Length is shorter
B Throat diameter is more
C Sudden expansion of flow in the downstream occurs
D Distance between the throat and the inlet is more
The specific output per kg mass flow rate of a gas turbine (having fixed efficiencies of compressor and turbine and fixed higher and lower temperature) with increase in pressure ratio will
A Increase first at fast rate and then slow
B Increase first at slow rate and then fast
C Decrease continuously
D First increase, reach maximum and then decrease
Unsteady uniform flow is represented by flow through a/an
A Long pipe at constant rate
B Long pipe at decreasing rate
C Expanding tube at increasing rate
D Expanding tube at constant rate
Unsteady non-uniform flow is represented by flow through a/an
A Long pipe at constant rate
B Long pipe at decreasing rate
C Expanding tube at increasing rate
D Expanding tube at constant rate

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