Low specific speed of turbine implies it is
Pelton turbine is of impulse type.
Match List-I (Type of runner) with List-lI. (Maximum head) the following:
The maximum number of jets generally employed in impulse turbine without jet interference is
Match List-I (Turbine types) with List-ll (Row direction) the following:
A special type of a propeller turbine is the kapian turbine in which the individual runner blades are pivoted on the hub so that their inclination may be adjusted during operation responding to changes in load. The blades are adjusted automatically rotating about pivots with the help of a governor servo-mechanism.
In Kaplan turbine runner, the number of blades are
In Francis turbine runner, the number of blades are
Cavitation in hydraulic turbine results in
1. noise and vibration
2. drop in output and efficiency
3. reduction of discharge
4. pitting on the surfaces
Q. Which of the above statements are valid?
The cavitation in reaction type hydraulic turbines is avoided by
1. using highly polished blade
2. using stainless steel runner
3. running turbine at designed speed
4. installing the turbine below the tail race level
Q. Which of the above are valid?
Runaway speed of a hydraulic turbine corresponds to the condition of