The relative velocity of water at the inlet of the Kaplan turbine is 7 m/s. β1 = 75o. The whirl velocity of the water at inlet is 10 m/s. Find the blade velocity of the turbine?a) 26.124 m/sb) 40 m/sc) 36.124 m/sd) 60 m/s 15.For the figure given below, find the missing terms in the order of (1), (2), (3) and (4).

60 m/s 15.For the figure given below, find the missing terms in the order of (1), (2), (3) and (4).a) Vr1, α1, β1, Vw1b) Vw1, β1, α1, Vr1c) Vw1, α1, β1, Vr1d) Vr1, β1, α1, Vw1View Answer

26.124 m/sb) 40 m/sc) 36.124 m/sd) 60 m/s 15.For the figure given below, find the missing terms in the order of (1), (2), (3) and (4).a) Vr1, α1, β1, Vw1

40 m/sc) 36.124 m/sd) 60 m/s 15.For the figure given below, find the missing terms in the order of (1), (2), (3) and (4).a) Vr1, α1, β1, Vw1b) Vw1, β1, α1, Vr1

36.124 m/sd) 60 m/s 15.For the figure given below, find the missing terms in the order of (1), (2), (3) and (4).a) Vr1, α1, β1, Vw1b) Vw1, β1, α1, Vr1c) Vw1, α1, β1, Vr1

60 m/s 15.For the figure given below, find the missing terms in the order of (1), (2), (3) and (4).a) Vr1, α1, β1, Vw1b) Vw1, β1, α1, Vr1c) Vw1, α1, β1, Vr1d) Vr1, β1, α1, Vw1View Answer

In which of the following type of runners in a Kaplan turbine the velocity of whirl at inlet is smaller than the blade velocity?

Such a case is practically impossible

IN_WHICH_OF_THE_FOLLOWING_TYPE_OF_RUNNERS_IN_A_KAPLAN_TURBINE_THE_VELOCITY_OF_WHIRL_AT_INLET_IS_SMALLER_THAN_THE_BLADE_VELOCITY??$

Such a case is practically impossible

21 + Mcqs in Kaplan Turbine Velocity Diagram in Hydraulic Machines Page 1 McqOptions

1.	The relative velocity of water at the inlet of the Kaplan turbine is 7 m/s. β1 = 75o. The whirl velocity of the water at inlet is 10 m/s. Find the blade velocity of the turbine?a) 26.124 m/sb) 40 m/sc) 36.124 m/sd) 60 m/s 15.For the figure given below, find the missing terms in the order of (1), (2), (3) and (4).
A.	26.124 m/sb) 40 m/sc) 36.124 m/sd) 60 m/s 15.For the figure given below, find the missing terms in the order of (1), (2), (3) and (4).a) Vr1, α1, β1, Vw1
B.	40 m/sc) 36.124 m/sd) 60 m/s 15.For the figure given below, find the missing terms in the order of (1), (2), (3) and (4).a) Vr1, α1, β1, Vw1b) Vw1, β1, α1, Vr1
C.	36.124 m/sd) 60 m/s 15.For the figure given below, find the missing terms in the order of (1), (2), (3) and (4).a) Vr1, α1, β1, Vw1b) Vw1, β1, α1, Vr1c) Vw1, α1, β1, Vr1
D.	60 m/s 15.For the figure given below, find the missing terms in the order of (1), (2), (3) and (4).a) Vr1, α1, β1, Vw1b) Vw1, β1, α1, Vr1c) Vw1, α1, β1, Vr1d) Vr1, β1, α1, Vw1View Answer
Answer» D. 60 m/s 15.For the figure given below, find the missing terms in the order of (1), (2), (3) and (4).a) Vr1, α1, β1, Vw1b) Vw1, β1, α1, Vr1c) Vw1, α1, β1, Vr1d) Vr1, β1, α1, Vw1View Answer

2.	In the inlet velocity triangle of a Kaplan turbine, α1 = 45o. The velocity of flow at inlet = 10 m/s. Find the whirl velocity of water at the inlet of Kaplan turbine?
A.	5 m/s
B.	10 m/s
C.	12.5 m/s
D.	15 m/s
Answer» C. 12.5 m/s

3.	In the outlet velocity triangle of a Kaplan turbine, β2 = 30o. Vf2 = 5 m/s. What is the relative velocity of the flow at outlet?
A.	10 m/s
B.	5.77 m/s
C.	8.66 m/s
D.	2.88 m/s
Answer» B. 5.77 m/s

4.	In which of the following type of runners in a Kaplan turbine the velocity of whirl at inlet is smaller than the blade velocity?
A.	Such a case is practically impossible
B.	Slow Runner
C.	Medium Runner
D.	Fast Runner
Answer» E.

5.	The flow ratio of a Kaplan turbine is given as 0.7. The available head is 30 m. The outer diameter of the runner is 3.5 m and the hub diameter is 2 m. Find the volume of water flowing through the turbine per second (m3/s)?
A.	90
B.	111
C.	125
D.	168
Answer» C. 125

6.	A Kaplan turbine requires a speed ratio of 2. The available head of the turbine is 5 m. What should be the blade velocity of the turbine such that a speed ratio of 2 is maintained (take g = 10 m/s2)?
A.	75.75 m/s
B.	63.25 m/s
C.	23.35 m/s
D.	50.00 m/s
Answer» C. 23.35 m/s

7.	The velocity of the flow through the Kaplan turbine is 25 m/s. The available head of the turbine is 60 m. Find the flow ratio of the turbine (take g = 10 m/s2).
A.	0.65
B.	0.72
C.	0.69
D.	0.75
Answer» C. 0.69

9.	THE_FLOW_RATIO_OF_A_KAPLAN_TURBINE_IS_GIVEN_AS_0.7._THE_AVAILABLE_HEAD_IS_30_M._THE_OUTER_DIAMETER_OF_THE_RUNNER_IS_3.5_M_AND_THE_HUB_DIAMETER_IS_2_M._FIND_THE_VOLUME_OF_WATER_FLOWING_THROUGH_THE_TURBINE_PER_SECOND_(M³/S)??$
A.	90
B.	111
C.	125
D.	168
Answer» C. 125

12.	The relative velocity of water at the inlet of the Kaplan turbine is 7 m/s. ‚âà√≠‚Äö√¢¬ß1 = 75^o. The whirl velocity of the water at inlet is 10 m/s. Find the blade velocity of the turbine?$
A.	26.124 m/s
B.	40 m/s
C.	36.124 m/s
D.	60 m/s
Answer» D. 60 m/s

13.	The whirl velocity of water at the inlet of the Kaplan turbine is 15 m/s. The velocity of water at inlet of the turbine is 20 m/s. Find the guide vane angle at inlet (In degrees).
A.	53.13
B.	36.86
C.	45
D.	41.41
Answer» E.

16.	Which of the following turbines will have the lowest number of blades in it?
A.	Pelton turbine
B.	Steam turbine
C.	Francis turbine
D.	Kaplan turbine
Answer» E.

20.	For which of the following values of available heads may Kaplan turbine be used?
A.	250 m
B.	100 m
C.	80 m
D.	50 m
Answer» E.

21.	In a Kaplan turbine, what is the direction of water flow?
A.	Axial and then axial
B.	Radial and then axial
C.	Tangential and then axial
D.	Tangential and then radial
Answer» B. Radial and then axial

17.	The velocity of the flow at the inlet of Kaplan turbine is V. In an experimental setup, what could be the possible value of the velocity of the flow at the outlet of Kaplan turbine?
A.	V
B.	0.8V
C.	1.2V
D.	2V
Answer» C. 1.2V

18.	The velocity of flow through a Kaplan turbine is 10 m/s. The outer diameter of the runner is 4 m and the hub diameter is 2 m. Find the volume flow rate of the turbine in m3/s?
A.	95
B.	75
C.	85
D.	105
Answer» B. 75

19.	In this type of low head turbine, the guide vanes are fixed to the hub of the turbine and are not adjustable. What is this type of turbine called?
A.	Francis turbine
B.	Kaplan Turbine
C.	Propeller Turbine
D.	Pelton turbine
Answer» B. Kaplan Turbine

Explore topic-wise MCQs in Hydraulic Machines.

In the inlet velocity triangle of a Kaplan turbine, α1 = 45o. The velocity of flow at inlet = 10 m/s. Find the whirl velocity of water at the inlet of Kaplan turbine?

In the outlet velocity triangle of a Kaplan turbine, β2 = 30o. Vf2 = 5 m/s. What is the relative velocity of the flow at outlet?

In which of the following type of runners in a Kaplan turbine the velocity of whirl at inlet is smaller than the blade velocity?

The flow ratio of a Kaplan turbine is given as 0.7. The available head is 30 m. The outer diameter of the runner is 3.5 m and the hub diameter is 2 m. Find the volume of water flowing through the turbine per second (m3/s)?

A Kaplan turbine requires a speed ratio of 2. The available head of the turbine is 5 m. What should be the blade velocity of the turbine such that a speed ratio of 2 is maintained (take g = 10 m/s2)?

The velocity of the flow through the Kaplan turbine is 25 m/s. The available head of the turbine is 60 m. Find the flow ratio of the turbine (take g = 10 m/s2).

IN_WHICH_OF_THE_FOLLOWING_TYPE_OF_RUNNERS_IN_A_KAPLAN_TURBINE_THE_VELOCITY_OF_WHIRL_AT_INLET_IS_SMALLER_THAN_THE_BLADE_VELOCITY??$

THE_FLOW_RATIO_OF_A_KAPLAN_TURBINE_IS_GIVEN_AS_0.7._THE_AVAILABLE_HEAD_IS_30_M._THE_OUTER_DIAMETER_OF_THE_RUNNER_IS_3.5_M_AND_THE_HUB_DIAMETER_IS_2_M._FIND_THE_VOLUME_OF_WATER_FLOWING_THROUGH_THE_TURBINE_PER_SECOND_(M3/S)??$

In the inlet velocity triangle of a Kaplan turbine, ‚âà√≠¬¨¬±1 = 45o. The velocity of flow at inlet = 10 m/s. Find the whirl velocity of water at the inlet of Kaplan turbine?$#

In the outlet velocity triangle of a Kaplan turbine, ‚âà√≠‚Äö√¢¬ß2 = 30o. Vf2 = 5 m/s. What is the relative velocity of the flow at outlet?$#

The relative velocity of water at the inlet of the Kaplan turbine is 7 m/s. ‚âà√≠‚Äö√¢¬ß1 = 75o. The whirl velocity of the water at inlet is 10 m/s. Find the blade velocity of the turbine?$

The whirl velocity of water at the inlet of the Kaplan turbine is 15 m/s. The velocity of water at inlet of the turbine is 20 m/s. Find the guide vane angle at inlet (In degrees).

A Kaplan turbine requires a speed ratio of 2. The available head of the turbine is 5 m. What should be the blade velocity of the turbine such that a speed ratio of 2 is maintained (take g = 10 m/s2)?

The velocity of the flow through the Kaplan turbine is 25 m/s. The available head of the turbine is 60 m. Find the flow ratio of the turbine (take g = 10 m/s2).

Which of the following turbines will have the lowest number of blades in it?

The velocity of the flow at the inlet of Kaplan turbine is V. In an experimental setup, what could be the possible value of the velocity of the flow at the outlet of Kaplan turbine?

The velocity of flow through a Kaplan turbine is 10 m/s. The outer diameter of the runner is 4 m and the hub diameter is 2 m. Find the volume flow rate of the turbine in m3/s?

In this type of low head turbine, the guide vanes are fixed to the hub of the turbine and are not adjustable. What is this type of turbine called?

For which of the following values of available heads may Kaplan turbine be used?

In a Kaplan turbine, what is the direction of water flow?

THE_FLOW_RATIO_OF_A_KAPLAN_TURBINE_IS_GIVEN_AS_0.7._THE_AVAILABLE_HEAD_IS_30_M._THE_OUTER_DIAMETER_OF_THE_RUNNER_IS_3.5_M_AND_THE_HUB_DIAMETER_IS_2_M._FIND_THE_VOLUME_OF_WATER_FLOWING_THROUGH_THE_TURBINE_PER_SECOND_(M³/S)??$

In the inlet velocity triangle of a Kaplan turbine, ‚âà√≠¬¨¬±1 = 45^o. The velocity of flow at inlet = 10 m/s. Find the whirl velocity of water at the inlet of Kaplan turbine?$#

In the outlet velocity triangle of a Kaplan turbine, ‚âà√≠‚Äö√¢¬ß₂ = 30^o. V_f2 = 5 m/s. What is the relative velocity of the flow at outlet?$#

The relative velocity of water at the inlet of the Kaplan turbine is 7 m/s. ‚âà√≠‚Äö√¢¬ß1 = 75^o. The whirl velocity of the water at inlet is 10 m/s. Find the blade velocity of the turbine?$

A Kaplan turbine requires a speed ratio of 2. The available head of the turbine is 5 m. What should be the blade velocity of the turbine such that a speed ratio of 2 is maintained (take g = 10 m/s²)?

The velocity of the flow through the Kaplan turbine is 25 m/s. The available head of the turbine is 60 m. Find the flow ratio of the turbine (take g = 10 m/s²).