Steam Nozzles and Turbines MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Steam Nozzles and Turbines, a fundamental topic in the field of Mechanical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Steam Nozzles and Turbines MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Steam Nozzles and Turbines mcq questions that explore various aspects of Steam Nozzles and Turbines problems. Each MCQ is crafted to challenge your understanding of Steam Nozzles and Turbines principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Mechanical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Steam Nozzles and Turbines MCQs are your pathway to success in mastering this essential Mechanical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Steam Nozzles and Turbines. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Steam Nozzles and Turbines knowledge to the test? Let's get started with our carefully curated MCQs!

Steam Nozzles and Turbines MCQs | Page 14 of 15

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Q131.
In a nozzle, the effect of supersaturation is to increase the dryness fraction of steam.
Discuss
Answer: (a).Yes
Q132.
The efficiency of an impulse turbine is maximum when (where Vb = Blade speed, V = Absolute velocity of steam entering the blade, and ฮฑ = Nozzle angle)
Discuss
Answer: (a).Vb = 0.5 V cos ฮฑ
Q133.
The velocity of whirl at outlet for an axial discharge turbine is
Discuss
Answer: (c).zero
Q134.
In impulse turbines, when friction is neglected, the relative velocity of steam at outlet tip of the blade is __________ the relative velocity of steam at inlet tip of the blade.
Discuss
Answer: (a).equal to
Q135.
The friction present between the steam and the nozzle surfaces reduces the heat drop by
Discuss
Answer: (a).10 to 15 percent
Q136.
An impulse turbine as compared to a reaction turbine, for a given power has __________ row of blades.
Discuss
Answer: (c).more
Q137.
In pressure compounding of an impulse turbine, the total pressure drop of the steam does not take place in the first nozzle ring, but is divided equally among all the nozzle rings.
Discuss
Answer: (a).Agree
Q138.
When the cross-section of a nozzle __________ continuously from entrance to exit, it is called a convergent nozzle.
Discuss
Answer: (b).decreases
Discuss
Answer: (b).relative velocity at the inlet of the moving blade is equal to that at the outlet
Q140.
During flow through a nozzle, no heat is supplied or rejected by the steam.
Discuss
Answer: (a).Agree