In nozzle flow, the condition for maximum discharge occurs when:
A
Exit pressure is equal to inlet pressure
B
Exit pressure is equal to atmospheric pressure
C
Exit pressure is equal to critical pressure
Analysis & Theory
Maximum discharge occurs when the steam/gas reaches critical pressure at the throat (sonic velocity).
The maximum discharge through a converging nozzle occurs when the flow becomes:
Analysis & Theory
Sonic flow (Mach 1) at the throat ensures maximum mass flow rate.
Critical pressure ratio in nozzles is given by:
Analysis & Theory
The correct formula is: (2 / (γ + 1))^(γ / (γ - 1))
Which parameter must be constant to determine condition for maximum discharge in compressible flow?
D
Total (stagnation) pressure
Analysis & Theory
Enthalpy is used in determining energy balance during flow through nozzle.
For maximum discharge through an orifice, the head loss should be:
Analysis & Theory
Maximum discharge occurs when energy conversion is efficient with minimal losses.
The condition for maximum flow in a pipe occurs when:
C
Velocity head is maximum
Analysis & Theory
Maximum flow is achieved when the velocity head is maximized, often under frictionless assumptions.
In nozzle flow, maximum mass flow rate is achieved when the Mach number at the throat is:
Analysis & Theory
At Mach 1 (sonic condition), the nozzle achieves maximum mass flow rate (choking condition).
What is the condition for maximum discharge in a venturimeter?
A
Throat pressure equals atmospheric pressure
D
Differential head is maximum
Analysis & Theory
Maximum discharge is when the differential pressure between inlet and throat is maximum.
Maximum power is transmitted through a pipe when the head lost due to friction is:
B
One-fourth of total head
C
One-third of total head
Analysis & Theory
For maximum power, frictional head loss = 1/3 of total head.
In steam nozzles, maximum discharge is independent of:
Analysis & Theory
After critical pressure ratio, further reduction in back pressure doesn’t increase discharge.