25 + Mcqs in Efficiency Kaplan Turbine Page 1 McqOptions

1.	In Kaplan turbine apparatus, the volume flow rate of water in 15 m3/s at an available head of 55 m (g = 10 m/s2). Find the shaft power (in MW) if the overall efficiency of the turbine is 95%.
A.	78.3
B.	7.83
C.	783
D.	0.783
Answer» C. 783

Discussion

2.	In a Kaplan Turbine experimental setup, the power output of the shaft is 4.325 MW. The volume flow rate of water in 15 m3/s at an available head of 50 m. Find the overall efficiency of the turbine in % (g = 10 m/s2)?
A.	57.66
B.	83.63
C.	81.33
D.	79.95
Answer» B. 83.63

Discussion

3.	The whirl velocity at inlet of a Kaplan turbine is 7.5 m/s and blade velocity is 5 m/s. The volume flow rate of water in 20 m3/s. Find the power output available at the shaft if the mechanical efficiency is 93% (in MW)?
A.	0.831
B.	0.697
C.	1.362
D.	0.298
Answer» C. 1.362

Discussion

4.	The power available at the shaft of a Kaplan turbine is 0.75 MW. The volume flow rate of water in 15 m3/s, whirl velocity at inlet is 12 m/s and blade velocity is 5 m/s. Find the mechanical efficiency (in %)?
A.	66.66
B.	75.00
C.	83.33
D.	91.33
Answer» D. 91.33

Discussion

5.	Which of the following efficiencies for Kaplan Turbine is defined as the ratio between the power available at the shaft of the turbine to the power produced by the runner?
A.	Hydraulic efficiency
B.	Volumetric efficiency
C.	Mechanical efficiency
D.	Overall efficiency
Answer» D. Overall efficiency

Discussion

6.	In a Kaplan turbine experiment, the volumetric efficiency of a given turbine is 91%. If volume flow rate of water in given to be 35 m3/s, find the volume of water (m3) NOT flowing over the runner blades per second?
A.	4.05
B.	3.15
C.	3.30
D.	2.55
Answer» C. 3.30

Discussion

7.	A student reports the volumetric efficiency of a Kaplan turbine to be 95%. If he measures the volume flow rate through the turbine is 40 m3/s. What is the flow rate of water over the runner blades (in m3/s)?
A.	38
B.	40
C.	42.11
D.	45
Answer» B. 40

Discussion

8.	The volume flow rate into a Kaplan turbine is Q m3/s. 0.10Q m3/s volume of water do not flow over the runner blades. What further information is required to find the volumetric efficiency (numerical value) of the Kaplan turbine?
A.	The numerical value of Q
B.	The available head of the turbine
C.	The RPM or the blade velocity of the turbine
D.	No further information is required
E.	of the Kaplan turbine?a) The numerical value of Qb) The available head of the turbinec) The RPM or the blade velocity of the turbined) No further information is required
Answer» E. of the Kaplan turbine?a) The numerical value of Qb) The available head of the turbinec) The RPM or the blade velocity of the turbined) No further information is required

Discussion

9.	The desired hydraulic efficiency of a Kaplan turbine is 98% at a whirl velocity of 20 m/s and a head of 60 m. What should be the blade velocity of the turbine at inlet in m/s? Take g = 10 m/s2.
A.	40
B.	60
C.	80
D.	30
Answer» E.

Discussion

10.	For a Kaplan turbine, the whirl velocity at inlet of the turbine is given to be 18 m/s. The blade velocity is given as 25 m/s. What is the hydraulic efficiency for a head of 50 m. Take g = 10 m/s2?
A.	80%
B.	90%
C.	70%
D.	98%
Answer» C. 70%

Discussion

11.	WHICH_OF_THE_FOLLOWING_EFFICIENCIES_FOR_KAPLAN_TURBINE_IS_DEFINED_AS_THE_RATIO_BETWEEN_THE_POWER_AVAILABLE_AT_THE_SHAFT_OF_THE_TURBINE_TO_THE_POWER_PRODUCED_BY_THE_RUNNER??$
A.	Hydraulic efficiency
B.	Volumetric efficiency
C.	Mechanical efficiency
D.	Overall efficiency
Answer» D. Overall efficiency

Discussion

12.	The whirl velocity at inlet of a Kaplan turbine is 7.5 m/s and blade velocity is 5 m/s. The volume flow rate of water in 20 m3/s. Find the power output available at the shaft if the mechanical efficiency is 93% (in MW)?$
A.	0.831
B.	0.697
C.	1.362
D.	0.298
Answer» C. 1.362

Discussion

13.	The power available at the shaft of a Kaplan turbine is 0.75 MW. The volume flow rate of water in 15 m3/s, whirl velocity at inlet is 12 m/s and blade velocity is 5 m/s. Find the mechanical efficiency (in %)?$
A.	66.66
B.	75.00
C.	83.33
D.	91.33
Answer» D. 91.33

Discussion

14.	In Kaplan turbine apparatus, the volume flow rate of water in 15 m3/s at an available head of 55 m (g = 10 m/s2). Find the shaft power (in MW) if the overall efficiency of the turbine is 95%.
A.	78.3
B.	7.83
C.	783
D.	0.783
Answer» C. 783

Discussion

15.	Which of the following efficiencies for Kaplan Turbine is defined as the ratio between the power available at the shaft to the power supplied by water at the inlet?
A.	Hydraulic efficiency
B.	Volumetric efficiency
C.	Mechanical efficiency
D.	Overall efficiency
Answer» E.

Discussion

16.	The hydraulic efficiency of a Kaplan turbine is 95%, the mechanical efficiency is 93% and the volumetric efficiency is assumed to be 100%. Fine the overall efficiency (in %)?
A.	80.05
B.	93.15
C.	87.55
D.	88.35
Answer» E.

Discussion

17.	In a Kaplan Turbine experimental setup, the power output of the shaft is 4.325 MW. The volume flow rate of water in 15 m3/s at an available head of 50 m. Find the overall efficiency of the turbine in % (g = 10 m/s2)?
A.	57.66
B.	83.63
C.	81.33
D.	79.95
Answer» B. 83.63

Discussion

18.	In a Kaplan turbine experiment, the volumetric efficiency of a given turbine is 91%. If volume flow rate of water in given to be 35 m3/s, find the volume of water (m3) NOT flowing over the runner blades per second?
A.	4.05
B.	3.15
C.	3.30
D.	2.55
Answer» C. 3.30

Discussion

19.	A student reports the volumetric efficiency of a Kaplan turbine to be 95%. If he measures the volume flow rate through the turbine is 40 m3/s. What is the flow rate of water over the runner blades (in m3/s)?
A.	38
B.	40
C.	42.11
D.	45
Answer» B. 40

Discussion

20.	The volume flow rate into a Kaplan turbine is Q m3/s. 0.10Q m3/s volume of water do not flow over the runner blades. What further information is required to find the volumetric efficiency (numerical value) of the Kaplan turbine?
A.	The numerical value of Q
B.	The available head of the turbine
C.	The RPM or the blade velocity of the turbine
D.	No further information is required
Answer» E.

Discussion

21.	Which of the following efficiencies for Kaplan Turbine is described as the ratio between total quantity of water over runner blades to total quantity of water supplied to turbine?
A.	Hydraulic efficiency
B.	Volumetric efficiency
C.	Mechanical efficiency
D.	Overall efficiency
Answer» C. Mechanical efficiency

Discussion

22.	It is given that the input water power of the Kaplan turbine is 1.10 times the runner power. What would be the hydraulic efficiency of the turbine (in %)?
A.	60.61
B.	70.71
C.	80.81
D.	90.91
Answer» E.

Discussion

23.	The desired hydraulic efficiency of a Kaplan turbine is 98% at a whirl velocity of 20 m/s and a head of 60 m. What should be the blade velocity of the turbine at inlet in m/s? Take g = 10 m/s2.
A.	40
B.	60
C.	80
D.	30
Answer» E.

Discussion

24.	Which of the following efficiencies for Kaplan Turbine is described as the ratio between the power produced by runner to the power supplied by water at the inlet?
A.	Hydraulic efficiency
B.	Volumetric efficiency
C.	Mechanical efficiency
D.	Overall efficiency
Answer» B. Volumetric efficiency

Discussion

25.	For a Kaplan turbine, the whirl velocity at inlet of the turbine is given to be 18 m/s. The blade velocity is given as 25 m/s. What is the hydraulic efficiency for a head of 50 m. Take g = 10 m/s2?
A.	80%
B.	90%
C.	70%
D.	98%
Answer» C. 70%

Discussion

Explore topic-wise MCQs in Hydraulic Machines.

In Kaplan turbine apparatus, the volume flow rate of water in 15 m3/s at an available head of 55 m (g = 10 m/s2). Find the shaft power (in MW) if the overall efficiency of the turbine is 95%.

In a Kaplan Turbine experimental setup, the power output of the shaft is 4.325 MW. The volume flow rate of water in 15 m3/s at an available head of 50 m. Find the overall efficiency of the turbine in % (g = 10 m/s2)?

The whirl velocity at inlet of a Kaplan turbine is 7.5 m/s and blade velocity is 5 m/s. The volume flow rate of water in 20 m3/s. Find the power output available at the shaft if the mechanical efficiency is 93% (in MW)?

The power available at the shaft of a Kaplan turbine is 0.75 MW. The volume flow rate of water in 15 m3/s, whirl velocity at inlet is 12 m/s and blade velocity is 5 m/s. Find the mechanical efficiency (in %)?

Which of the following efficiencies for Kaplan Turbine is defined as the ratio between the power available at the shaft of the turbine to the power produced by the runner?

In a Kaplan turbine experiment, the volumetric efficiency of a given turbine is 91%. If volume flow rate of water in given to be 35 m3/s, find the volume of water (m3) NOT flowing over the runner blades per second?

A student reports the volumetric efficiency of a Kaplan turbine to be 95%. If he measures the volume flow rate through the turbine is 40 m3/s. What is the flow rate of water over the runner blades (in m3/s)?

The volume flow rate into a Kaplan turbine is Q m3/s. 0.10Q m3/s volume of water do not flow over the runner blades. What further information is required to find the volumetric efficiency (numerical value) of the Kaplan turbine?

The desired hydraulic efficiency of a Kaplan turbine is 98% at a whirl velocity of 20 m/s and a head of 60 m. What should be the blade velocity of the turbine at inlet in m/s? Take g = 10 m/s2.

For a Kaplan turbine, the whirl velocity at inlet of the turbine is given to be 18 m/s. The blade velocity is given as 25 m/s. What is the hydraulic efficiency for a head of 50 m. Take g = 10 m/s2?

WHICH_OF_THE_FOLLOWING_EFFICIENCIES_FOR_KAPLAN_TURBINE_IS_DEFINED_AS_THE_RATIO_BETWEEN_THE_POWER_AVAILABLE_AT_THE_SHAFT_OF_THE_TURBINE_TO_THE_POWER_PRODUCED_BY_THE_RUNNER??$

The whirl velocity at inlet of a Kaplan turbine is 7.5 m/s and blade velocity is 5 m/s. The volume flow rate of water in 20 m3/s. Find the power output available at the shaft if the mechanical efficiency is 93% (in MW)?$

The power available at the shaft of a Kaplan turbine is 0.75 MW. The volume flow rate of water in 15 m3/s, whirl velocity at inlet is 12 m/s and blade velocity is 5 m/s. Find the mechanical efficiency (in %)?$

In Kaplan turbine apparatus, the volume flow rate of water in 15 m3/s at an available head of 55 m (g = 10 m/s2). Find the shaft power (in MW) if the overall efficiency of the turbine is 95%.

Which of the following efficiencies for Kaplan Turbine is defined as the ratio between the power available at the shaft to the power supplied by water at the inlet?

The hydraulic efficiency of a Kaplan turbine is 95%, the mechanical efficiency is 93% and the volumetric efficiency is assumed to be 100%. Fine the overall efficiency (in %)?

In a Kaplan Turbine experimental setup, the power output of the shaft is 4.325 MW. The volume flow rate of water in 15 m3/s at an available head of 50 m. Find the overall efficiency of the turbine in % (g = 10 m/s2)?

In a Kaplan turbine experiment, the volumetric efficiency of a given turbine is 91%. If volume flow rate of water in given to be 35 m3/s, find the volume of water (m3) NOT flowing over the runner blades per second?

A student reports the volumetric efficiency of a Kaplan turbine to be 95%. If he measures the volume flow rate through the turbine is 40 m3/s. What is the flow rate of water over the runner blades (in m3/s)?

The volume flow rate into a Kaplan turbine is Q m3/s. 0.10Q m3/s volume of water do not flow over the runner blades. What further information is required to find the volumetric efficiency (numerical value) of the Kaplan turbine?

Which of the following efficiencies for Kaplan Turbine is described as the ratio between total quantity of water over runner blades to total quantity of water supplied to turbine?

It is given that the input water power of the Kaplan turbine is 1.10 times the runner power. What would be the hydraulic efficiency of the turbine (in %)?

The desired hydraulic efficiency of a Kaplan turbine is 98% at a whirl velocity of 20 m/s and a head of 60 m. What should be the blade velocity of the turbine at inlet in m/s? Take g = 10 m/s2.

Which of the following efficiencies for Kaplan Turbine is described as the ratio between the power produced by runner to the power supplied by water at the inlet?

For a Kaplan turbine, the whirl velocity at inlet of the turbine is given to be 18 m/s. The blade velocity is given as 25 m/s. What is the hydraulic efficiency for a head of 50 m. Take g = 10 m/s2?