Mechanical Engineering :: Steam Nozzles and Turbines

1.	A nozzle is said to be a convergent nozzle
	A. when the cross-section of the nozzle increases continuously from entrance to exit B. when the cross-section of the nozzle decreases continuously from entrance to exit C. when the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit D. none of the above Answer: Option B Explanation: No answer description available for this question.

---

2.	A turbine is said to have an axial discharge when the steam leaves the blade tip at __________ to the direction of the blade motion.
	A. 60° B. 90° C. 180° D. 270° Answer: Option B Explanation: No answer description available for this question

---

3.	The flow through a nozzle is regarded as
	A. constant volume flow B. constant pressure flow C. isothermal flow D. isentropic flow Answer: Option D Explanation: No answer description available for this question.

---

4.	The ratio of total useful heat drop to the total isentropic heat drop, is called
	A. stage efficiency B. internal efficiency C. Rankine efficiency D. none of these Answer: Option B Explanation: No answer description available for this question.

---

5.	The pressure at which the steam leaves the nozzle is known as back pressure.
	A. Correct B. Incorrect Answer: Option A Explanation: No answer description available for this question.

---