| 1. | In order that flow takes place between two points in a pipeline, the differential pressure between these points must be more than ? | |
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frictional force
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viscosity
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surface friction
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All option are correct
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View Answer
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Report Question| 2. | Head developed by a centrifugal pump depends on _______ ? | |
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impeller diameter
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speed
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fluid density
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Both impeller diameter and speed
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| 3. | Low specific speed of turbine implies it is ? | |
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propeller turbine
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Francis turbine
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impulse turbine
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None of these
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| 4. | The specific speed of a turbine is the speed of such a turbine, identical with a given turbine, which ? | |
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develops unit power under unit head
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develops unit power under unit discharge
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develops unit speed under unit head
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delivers unit discharge under unit head
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| 5. | The number of joints (j) which constitutes a kinematic chain can be expressed in terms of number of links (l) as ________ ? | |
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j= 3/4l - 2
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j= 3/2l + 2
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j= 3/2l - 2
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j= l - 2/3
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| 6. | Which of the following will lead to the formation of higher pair ? | |
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Turning pair
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Rolling pair
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Sliding pair
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None of these
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| 7. | Which of the following statement is TRUE regarding work done per cycle ? | |
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Work done per cycle is directly proportional to the mean torque
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Work done per cycle is directly proportional to the angle turned in one revolution
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Work done per cycle is inversely proportional to the angle turned in one revolution
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Both Work done per cycle is directly proportional to the mean torque and Work done per cycle is directly proportional to the angle turned in one revolution
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| 8. | he angular acceleration and the moment of inertia of the flywheel is 0.6 rad/s² and 2500.kg.m² respectively. What is the kinetic energy ( in kN-m) of the flywheel after 10 seconds from the start ? | |
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450
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4500
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4.5
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45
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| 9. | The power transmission takes place from a pulley of diameter 1 m running at the speed of 250 rpm to a pulley of 2.50 m diameter by means of a belt. Determine the speed (in rpm) of the driven pulley ? | |
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110
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150
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100
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625
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| 10. | The scotch yoke mechanism is the inversion of ________ ? | |
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four bar link chain
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double slider crank chain
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single slider crank chain
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None of these
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