Steam and Gas Turbines Questions and Answers – Requirements for Radial Equilibrium and Velocity Diagrams

This set of Steam and Gas Turbines Questions for entrance exams focuses on “Requirements for Radial Equilibrium and Velocity Diagrams”.

1. For radial equilibrium axial flow is assumed.
a) True
b) False
View Answer

Answer: b
Explanation: For radial equilibrium asymmetrical flow is assumed.

2. For radial equilibrium constant velocity is assumed.
a) True
b) False
View Answer

Answer: a
Explanation: For radial equilibrium meridional velocity is assumed to be constant.

3. For simple radial equilibrium it is assumed that ______________
a) r*Vu = constant
b) r/Vu = constant
c) Vu/r = constant
d) None of the mentioned
View Answer

Answer: a
Explanation: For a free vortex in a radial equilibrium it is assumed that the product of radius and velocity has remained as constant.
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4. Secondary losses are caused due to _________
a) frictional forces
b) lift force induced in turbine
c) drag force induced by secondary force
d) none of the mentioned
View Answer

Answer: c
Explanation: Secondary losses are caused due to drag forces induced by secondary forces.

5. For radial equilibrium it is assumed that viscosity is __________
a) high
b) negligible
c) low
d) none of the mentioned
View Answer

Answer: b
Explanation: For radial equilibrium the flow is assumed to be asymmetrical and viscous forces are assumed to be negligible.
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6. In radial equilibrium method blade force is assumed to be ____________
a) high
b) low
c) zero
d) none
View Answer

Answer: c
Explanation: Blade forces are assumed to be zero in radial equilibrium.

7. For radial equilibrium it is assumed that heat transfer is ____________
a) zero
b) high
c) low
d) none
View Answer

Answer: a
Explanation: For radial equilibrium it is assumed that the flow is non viscous flow and heat transfer is zero.
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8. For radial equilibrium entropy term is _________
a) high
b) low
c) neglected
d) none of the mentioned
View Answer

Answer: c
Explanation: For radial equilibrium method entropy term is neglected.

9. For radial equilibrium it is assumed that the steam lines are ___________ to the axis line.
a) perpendicular
b) parallel
c) inclined
d) none of the mentioned
View Answer

Answer: b
Explanation: For radial equilibrium it is assumed that the steam lines are axis parallel and have no inclination.
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10. For radial equilibrium friction is neglected.
a) True
b) False
View Answer

Answer: a
Explanation: Friction is neglected in radial equilibrium.

Sanfoundry Global Education & Learning Series – Steam and Gas Turbines.

To practice all areas of Steam and Gas Turbines for entrance exams, here is complete set of 1000+ Multiple Choice Questions and Answers.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

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Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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