Fluid Mechanics Sheet 12
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1) Question.
In steady, isothermal flow in long pipe lines, the significant value of Mach number for determining trends in flow properties is -
Answer. -
2) Question.
A normal shock wave -
Answer. -
3) Question.
Which of the following equations are used to develop Rayleigh lines ?
Answer. -
4) Question.
An isentropic process is always -
Answer. -
5) Question.
The specific speed of a turbine is defined as the speed of a unit of such a size that it -
Answer. -
6) Question.
Pumps may be put in the increasing order of specific speeds as -
Answer. -
7) Question.
Consider the following statements :
i) A reciprocating pump does not need priming
ii) A centrifugal pump can run at high speed
iii) A centrifugal pump has high maintenance cost as compared to reciprocating pump
Of these statements -
Answer. -
8) Question.
Consider the following statements :
i) An impulse turbine is ideal for high head development
ii) Speed ratio of a reaction turbine is in the range of 0.6 to 0.9
iii) The specific speed of a Kaplan turbine is in the range of 50 to 150 m
of these statements -
Answer. -
9) Question.
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 -
Answer. -
10) Question.
Two geometrically similar units are homologous if they have -
Answer.
