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In a double acting vertical steam engine running at speed of 360 r.p.m., cylinder diameter is 25 cm, stroke is 30 cm, diameter of piston rod is about 3.75 cm and length of the connecting rod is 60 cm. When the crank has moved 120o from T.D.C., the pressure of steam at cover end is 35 x 104 N/m2. and at crank end is 3 x 104 N/m2. if the mass of the reciprocating parts is 45 Kg evaluate :
(iv) Piston effect
(v) Turning moment on the crank shaft for the given crank position.
Explain Cutting Speed - Cutting Parameters It is relative speed (V 1 ) between wheel and the Work piece. It is expressed in m/sec. V=Cutting speed=V 1 =
Q. Preliminary layout considerations? This section outlines the key aspects to be considered when preparing preliminary layouts during the evaluate phase. Preliminary layouts a
Calculate the crack Stress Intensity Factor: If on the beam specimen of last problem two loads, each equal to 500 N, are applied at distance of 25 mm from central plane, calcu
Find out the effort required to run this machine: The efficiency of a machine is 75% while an effort of 20 N is required to lift a load of 160 N. Compute the velocity ratio an
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
The hardened layer depth is the measure of harden-ability. A good harden-ability will sense even thicker sections are uniformly hardened. Conversely a poor harden-ability will gene
Capacitor Discharge Welding This is used for welding of studs, welding of thermocouples, etc. on the base metal. A low voltage, high amperage electrical discharge from a capac
Degree of superheated steam
Engine oil : Check engine oil level and viscosity.
Give the working and consideration of a diaphragm spring single plate clutch in disengaged position. Discuss in detail the constructional features of a clutch plate. Explain the
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