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Mechanical Engineering - Practice Test - 8

Q1:

The value of the surface tension of an ideal fluid is
 

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Q2:

 The specific gravity of a liquid has
 

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Q3:

The specific volume of a liquid is the reciprocal of
 

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Q4:

Specific gravity is what kind of property?
 

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Q5:

Which one of the following is the CGS unit of dynamic viscosity?
 

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Q6:

Which of the following statements is true regarding one and two-dimensional flows?
 

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Q7:

If a liquid enters a pipe of diameter d with a velocity v, what will it’s velocity at the exit if the diameter reduces to 0.5d?
 

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Q8:

The continuity equation is based on the principle of
 

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Q9:

Two pipes of diameters d1 and d2 converge to form a pipe of diameter 2d. If the liquid flows with a velocity of v1 and v2 in the two pipes, what will be the flow velocity in the third pipe?
 

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Q10:

Two pipes, each of diameter d, converge to form a pipe of diameter D. What should be the relation between d and D such that the flow velocity in the third pipe becomes double of that in each of the two pipes?
 

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Q11:

Where is a water hammer developed?
 

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Q12:

Which among the following is true for hydroelectric power plants?
 

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Q13:

Water hammer is developed in which power plant?
 

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Q14:

The liquid flowing through a series of pipes can take up
 

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Q15:

What is the total loss developed in a series of pipes?
 

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Q16:

Hydraulic energy is converted into another form of energy by hydraulic machines. What form of energy is that?
 

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Q17:

Which principle is used in Hydraulic Turbines?
 

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Q18:

Buckets and blades used in a turbine are used to
 

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Q19:

_______________is the electric power obtained from the energy of the water.
 

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Q20:

Which energy generated in a turbine is used to run electric power generator linked to the turbine shaft?
 

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Q21:

Centrifugal pump is a_________
 

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Q22:

Turbomachines work under ________
 

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Q23:

The main function of nozzle is to __________
 

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Q24:

The main function of centrifugal pumps are to ________
 

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Q25:

Centrifugal pumps transfer energy from _______
 

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