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A single jet pelton wheel runs at 300 rpm under a head of 510 m. the jet diameter is 200m, its deflection inside the bucket is 165o and its relative velocity is reduced by 15% because of friction Evaluate :
(i) Water horse power.
(ii) Resultant force on the bucket.
(iii) Brake power if mechanical losses are 3% of power supplied, and overall efficiency.
Assume Kv (coefficient of velocity) 0.98 and Ku (speed ratio) 0.46.
What is the net angle of twist at the free end: The stepped steel shaft illustrated in Figure is subjected to a torque (T) at the free end and a torque (2T) in the opposite di
Calculate sif of crack - beam: An edge cracked beam carries crack in its central plane whose lengths is 5 mm. A load of 1000 N is applied opposite to crack so that crack would
diameter = 100mm length = 470mm power = 4000 w radians = 78 shear modulus 60000 n/mm^2 determin the maximum shear stress and angle of twist
Using Bode plot calculate (a) Phase margin (b) Gain margin (c) Stability of closed loop system. The open transfer function of the system is
Calculate the angular deflection (in degrees) produced in a solid circular shaft of diameter 12.5mm and length 0.5 m when the shear stress is 25MPa and the shear modulus 70GPa. Wha
Tension in the strings: Sol.: When weight is attached to string then it will be in tension. The diagrams are shown below to describe this particular concept.
Problems on Structural Design of Combined Footings a. Two columns 50 cm x 50 cm in size support service loads of 1200kN and 800kN.The centre to centre spacing between columns
PRODUCTION PLANNING & CONTROL Assignment 2 Kid style, International, makes furniture designed for children. Its most popular items are large and small toy boxes. Demand for toy
A tensile test on a specimen having an initial diameter of 13.11 mm and an initial gauge length of 200.0 mm, gave the following data:
what is the role of a correction couple and how does it come into picture in dynamically equivalent system?
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