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Q. Show the Sources of Ignition?
Sources of Ignition - Possible sources of ignition include the following:
• Electrical: Sparks or arcs may occur when current carrying contacts are separated or through static electricity discharge.
• Naked Lights: e.g. fired heaters, fires, smoking, hot work, or gas welding
• IC Engines: Spark-ignition systems or exhaust hot spots.
• Spontaneous Combustion: Pyrophoric materials or vapour leakage at temperatures above AIT.
• Frictional Ignition: Grit blasting, power tool grinding or mechanical failure of rotating machinery.
• High Temperature Surfaces: Transfer lines, HP steam lines or other hot surfaces.
Explain the Back Rake Angle It measured the downwards slope of the top surface of the tool from the nose to the rear along the longitudinal axis. Its purpose is to guide the di
Q. Process of Steam generation unit? BFW from water treatment area is sent to the BFW Booster pumps at temperature around 105°C. The BFW is then heated and fed to the HP BFW Pu
Consider a fully developed laminar flow of a fluid through a 200 m long and 4 cm diameter horizontal and circular pipe. The density and the viscosity of the fluid are 1400 kg/m 3
(a) What do you mean by machinibility ? Discuss the factors which come into play while evaluating the machinability of any metal. Also describe machinability index. (b) Brass co
(a) A four cylinder engine operates at 1200 rpm gave 18.6 KW brake power, the average torque when one cylinder was cut-off was 105 N-m. Evaluate the indicated thermal efficiency if
Difference between path function and point function
is there any other punch material for making cold forged nut except AISI M2
Explain concept of Counter Bore and countersink in radial drilling machine Counter Bore :- This operation uses a pilot to guide the cutting action to accommodate the heads
The Continue Dimension Command You can use the Continue command to add a string of dimensions. In the illustration above the "36mm" dimension has been continued from the "64mm"
1.Calculate the heat-removal factor for a collector having an overall heat-losscoefficient of 6 W/m2K and constructed of aluminum fins and tubes. Tube-to-tube centered distance is
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