A centrifugal pump operating at 1000 rpm develops a head of 30 m. If the speed is increased to 2000 rpm and the pump operates with the same efficiency, the head developed by pump will be _______.
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Solution
If H is the head available for a hydraulic turbine the power,speed and discharge respectively are proportional to
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Solution
In an air-standard diesel cycle, r = compression ratio, r is the fuel cut-off ratio and g is the adiabatic index(Cp/Cv).
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Solution
In a 50% reaction stage, absolute velocity angle at inlet is 45°, mean peripheral speed is 75 m/s and the absolute velocity at exit is axial. The stage specific work will be ________.
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In the mechanism shown below,link 3 her,
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Solution
In the mechanism shown in figure,there in curvilinear translation and all points in it will trace out identical cycloids.
Bending moment distribution in a built beam is shown in figure.
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Solution
Match List-I with List-II
List-I List-II
A.Machining of 1.ECM
conducting materials
B.Ruby rod 2.EDM
C.Electrolyte 3.USM
D.Abrasive slurry 4.LBM
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Solution
Machining of conducting materials= EDM
Ruby rod= LBM
Electrolyte= ECM
Abrasive slurry = USM
Which one of the following casting processes is best suited to make bigger size hollow symmetrical pipes?
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Solution
In centrifugal casting, the molten metal is rotated dur-ing solidification. If in a technique which is utilized to cast thin-walled cylinder. It is best suited to cast hollow symmetrical pipes, fly wheels etc.
A freely supported beam at its ends carries a central concentrated load and maximum bending moment M. If the same load be uniformly distributed over the beam length,then maximum bending moment will be:
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Solution
The main advantage of hydrodynamic bearing over roller bearing is:
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Solution
Hydrodynamic bearing has a higher load-carrying capacity as compared to roller bearing.