- Choked
- Under-damping
- Over-damping
- None of these
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The ratio of exit pressure to inlet pressure of maximum mass flow rate per area of steam through a nozzle when steam is initially superheated is?
Answer: Option 3 Let'
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The ratio of exit pressure to inlet pressure for maximum mass flow rate per unit area of steam through a nozzle when steam is initially dry saturated is?
Answer: Option 2 Let'
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The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure, is called?
Answer: Option 4 The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of...
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When the cross-section of a nozzle __________ continuously from entrance to exit, it is called a convergent nozzle.?
Answer: Option 2 Let'
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When the back pressure of a nozzle is below the designed value of pressure at exit of nozzle, the nozzle is said to be?
Answer: Option 2 Let'
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Fourier's law of heat conduction is (where Q = Amount of heat flow through the body in unit time, A = Surface area of heat flow, taken at right angles to the direction of heat flow, dT = Temperature difference on the two faces of the body, dx = Thickness of the body, through which the heat flows, taken along the direction of heat flow, and k = Thermal conductivity of the body)?
Answer: Option 1 Fourier's law of heat conduction is k. A. (dT/dx) where Q = Amount of heat flow through the body in unit time, A = Surface area of heat...
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The velocity of steam leaving the nozzle (V) is given by (where K = Nozzle coefficient or nozzle efficiency, and hd = Enthalpy or heat drop during expansion of steam in a nozzle)?
Answer: Option 3 Let'
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The depth ‘d’ below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be (where D is the depth of flow)?
Answer: Option 2 Let'
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The process, which causes the air to enter the impeller blades of a centrifugal compressor at ________ velocity (without effecting the mass of air to flow and velocity of flow) is known as prewhirl.?
Answer: Option 1 The process, which causes the air to enter the impeller blades of a centrifugal compressor at reduced velocity (without effecting the mass of air to flow and...
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