Mechanical Operations Questions and Answers – Leaf Filters

This set of Mechanical Operations Multiple Choice Questions & Answers (MCQs) focuses on “Leaf Filters”.

1. __________ is an exhaust gas driven compressor used to increase the power output.
a) Turbocharger
b) Sonic boom
c) Compressor
d) Rotor
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2. ________ consists of a row of rotor blades followed by a row of stator blades.
a) Centrifugal compressor
b) Axial compressor
c) Axial pump
d) Radial pump
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3. The energy level of the fluid flowing through it is increased by the action of the __________
a) Rotor blades
b) Axial blades
c) Motor blades
d) Initial blades
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4. An axial compressor is a relatively _________ pressure ratio turbomachine.
a) High
b) Low
c) Medium
d) Constant
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5. Due to density variation from inlet to exit, the flow area _____________
a) Reduces
b) Increases
c) Remains same
d) Constant
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6. In an axial turbine, the kinetic energy of combustion gas is converted to mechanical power by _________
a) Shear action
b) Axial action
c) Impulse action
d) Tear action
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7. ________ is one where the change in head is brought about primarily by a change in velocity.
a) Impulse turbine
b) Reaction turbine
c) Axial turbine
d) Radial Turbine
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8. Calculate N_Re, if diameter is 12 m and impellor takes 20 rotations and density and viscosity are 1.20 and 200?
a) 15.50
b) 17.28
c) 10.25
d) 8.52
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9. Calculate N_Fr, if impellor takes 15 rotations and 1.2 m in diameter?
a) 7.88
b) 7.36
c) 8.38
d) 5.50
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10. Calculate power, if Q is 4.50 m³/s and at a height of 2 m and consider water as fluid?
a) 600
b) 900
c) 100
d) 500
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Sanfoundry Global Education & Learning Series – Mechanical Operations.

To practice all areas of Mechanical Operations, here is complete set of 1000+ Multiple Choice Questions and Answers.