Multiple-Choice Questions or Objective-Type Questions on Steam Nozzle [PDF Included]

In all the examinations, there must be multiple-choice questions. In this article, I will display some Multiple-Choice Questions on Steam Nozzle that will boost you in your coming examinations.

In the last section, there is a Quiz on Steam Nozzle. Appear for the test and fall in love with studying a lot of objective-type questions.

To download this MCQ sheet, you have to reach the end of this page. There you will find a PDF downloadable button. Click here and download the PDF version of this sheet.

So now let’s start the objective-type questions or viva questions on Steam Nozzle.

MCQ questions or Viva Questions on Steam Nozzle

• Heat energy of steam is converted into ______ energy in a steam nozzle.

1. Potential energy
2. Kinetice energy
3. Electric energy
4. None of these

Ans: (2)

• When the cross section of a nozzle decreases continuously from entrance to exit, it is called a ____.

1. Convergent nozzle
2. Divergent nozzle
3. Convergent-divergent nozzle
4. None of these

Ans: (1)

• When the cross section of a nozzle increases continuously from entrance to exit, it is called a ____.

1. Convergent nozzle
2. Divergent nozzle
3. Convergent-divergent nozzle
4. None of these

Ans: (2)

• When the cross section of a nozzle first decreases and then increases, it is called a ____.

1. Convergent nozzle
2. Divergent nozzle
3. Convergent-divergent nozzle
4. None of these

Ans: (3)

• The smallest section of the nozzle is known as ____.

1. Convergent portion
2. Divergent portion
3. Throat
4. Both (1) and (2)

Ans: (3)

• Steam enters the nozzle with ____ pressure and ____ velocity.

1. Low,high
2. Low,low
3. High,high
4. High,low

Ans: (4)

• Steam leaves the nozzle with ____ pressure and ____ velocity.

1. Low,high
2. Low,low
3. High,high
4. High,low

Ans: (1)

• The back pressure of nozzle is ____.

1. The pressure at which steam enters the nozzle
2. The pressure at throat
3. The pressure at which steam leaves the nozzle
4. None of these

Ans: (3)

• Nozzle efficiency is the ratio of ____.

1. Isentropic heat drop and useful heat drop
2. Useful heat drop and isentropic heat drop
3. None of these

Ans: (2)

• How does the friction in a nozzle effects the dryness fraction of steam?

1. It does not effect
2. Friction decreases the dryness fraction
3. Friction increases the dryness fraction
4. None of these

Ans: (3)

• The exit velocity of steam in the nozzle (V) is ____(where k is nozzle coefficient and h_d – enthalpy drop during expansion)

1. 72.44(K-h_d)
2. 44.72 sqrt(Kh_d)
3. 72.44(K+h_d)
4. 44.72 sqrt(K/h_d)

Ans: (2)

• On which of the following parameters, the discharge in a convergant-divergant nozzle depends upon?

1. The area of the nozzle at throat
2. Initial conditions of the steam
3. Exit conditions of the steam
4. Both (1) and (2)

Ans: (4)

• When the steam is initially dry saturated, the critical pressure ratio is ____.

1. 1.135
2. 1.582
3. 0.577
4. 0.135

Ans: (3)

• When the steam is initially superheated, which value you will choose for the critical pressure ratio?

1. 0.577
2. 0.546
3. 0.582
4. 0.528

Ans: (2)

• For initially wet steam, which value will you choose for critical pressure ratio?

1. 0.577
2. 0.546
3. 0.582
4. 0.528

Ans: (3)

• For gases, which value will you choose for critical pressure ratio?

1. 0.577
2. 0.546
3. 0.582
4. 0.528

Ans: (4)

• For initially dry saturated steam, which is the right formula?

1. M_max= 0.637A sqrt(p₁/v₁)
2. M_max= 0.666A sqrt(p₁/v₁)
3. M_max= 0.685A sqrt(p₁/v₁)
4. M_max= 0.582A sqrt(p₁/v₁)

Ans: (1)

• For initially superheated steam, which is the right formula?

1. M_max= 0.637A sqrt(p₁/v₁)
2. M_max= 0.666A sqrt(p₁/v₁)
3. M_max= 0.685A sqrt(p₁/v₁)
4. M_max= 0.582A sqrt(p₁/v₁)

Ans: (2)

• For initially dry saturated steam, which is the right formula?

1. M_max= 0.637A sqrt(p₁/v₁)
2. M_max= 0.666A sqrt(p₁/v₁)
3. M_max= 0.685A sqrt(p₁/v₁)
4. M_max= 0.582A sqrt(p₁/v₁)

Ans: (1)

• For gases, which is the right formula?

1. M_max= 0.637A sqrt(p₁/v₁)
2. M_max= 0.666A sqrt(p₁/v₁)
3. M_max= 0.685A sqrt(p₁/v₁)
4. M_max= 0.582A sqrt(p₁/v₁)

Ans: (3)

Quiz on Steam Nozzle

Here is the Quiz for you.

Conclusion

I hope that the Multiple-Choice Questions on Steam Nozzle will help you in your college/university examinations and different types of competitive examinations. I will be more encouraged if I get feedback from your end. Please don’t forget to give the feedback by writing in the comment box. Good Luck!