Magneto Hydrodynamic Generation (MHD) - MCQs with answers

Magneto Hydrodynamic Generation (MHD) - MCQs with answers

Q1. Which of the following liquid metal is not used as a magneto hydrodynamic generation (MHD) working fluid?

a. Potassium
b. Sodium
c. Lithium
d. All of these.

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Q2. The nature of the current developed in MHD generator is

a. ac
b. dc
c. Both a and b
d. None of these.

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Q3. Coal is processed and burnt in the combustor of a hybrid MHD at a high temperature and pressure with the preheated air to form which among the following element?

a. Steam
b. Plasma
c. Coke
d. None of these.

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Q4. The harmful emissions such as sulphur are removed from gas before it is discharged to the atmosphere through which instrument?

a. Duct
b. Mufflers
c. Stark
d. All of these.

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Q5. What is the working fluid in closed cycle MHD system?

a. Helium and argon
b. Coal
c. Natural gas
d. Potassium

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Q6. In a MHD generator the conductor is made of

a. Copper
b. Liquid metal.
c. Gas
d. Liquid metal or gas

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Q7. Power output per unit volume of a MHD generator is proportional to

a. Specific electrical conductivity of gas
b. Square of the magnetic field strength.
c. Square of the fluid velocity.
d. All of these.

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