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a) A pair of 20 degree full depth involute spur gears having 30 and 50 teeth respectively of module 4mm are in mesh. The smaller gear rotates at 1000 rpm. Determine-
1) Contact Ratio 15
2) Sliding velocity at engagement and at disengagement of pair of a teeth.
b) Two spur wheels have 30 teeth each of involute shape. The circular pitch is 25mm and pressure angle is 20 degree. Evaluate the addendum of the wheels, if the arc of contact is twice the circular pitch.
TYPE OF DEFECTS AND THEIR SIGNIFICANCE Defects in weldments in general can be classified as follows: I. Defects involving inadequate bonding Lack of fusion Incom
Ceramic Tools Aluminium oxide or Al 2 O 3 is pressed and sintered in a powder metallurgy method in various shapes of cutting edges that are fastened to mechanical shanks. The
Illustrate governing Mechanism of Francis turbine.
Performance criterion of a steam power plant: Sol. : The design of power plant can be determined largely by the consideration of capital cost and operating cost; the forme
calculate the head required
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:
Find the Maximum Allowable Size of the Milling Cutter Find the maximum allowable size of the milling cutter if it is to rotate at 65 rpm while the cutting speed is 20 m/min.
Types of Gas Welding Process Gas welding includes all those welding processes in which gas flame is used as a heat source for melting metals. It is further divided into three m
ELECTRO GAS WELDING This process is an extension of MIG I MAG welding, designed for single pass vertical welding of steel plates in the thickness range of 10 to 38 mm. The tw
relation between fluid pressure and velocity
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