Match List-I (Machines) with List-ll (Associated with) and select the correct answer using the codes given below the lists:
A. Centrifugal pump
B. Reciprocating pump
C. Francis turbine
D. Pelton wheel
1. Per cent slip
3. Guide blade
4. Volute chamber
The specific speed of a turbine is defined as the speed of a Unit of such a size that it
A high efficiency pump is required for low discharge, high head and low maintenance cost. Delivery of water need not be continuous. The pump need not run at high speed. Which one of the following is the correct choice?
A reaction type turbine discharges 10 cumecs under a head of 8 m and with an overall efficiency of 85 percent, The power developed is
Which one of the following statements is correct?
An impulse turbine
In the selection of turbine by specific speed or head, which one of the following statements is not correct?
Kaplan turbines are suited to low heads and have highest specific speed.
For 25 m or less available head which turbine will be suitable:
For low head of 1.5 to 20 metres Kaplan turbines and francis turbines are used.
For high head (> 25m) pelton wheel turbine is used.
The hydraulic efficiency of an impulse turbine is maximum when velocity of wheel is (Where: V = jet velocity)
Which one of the following statements is not correct in respect of hydraulic turbines?