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Two machining operations, A (3 minutes per part) and B (10 minutes per part), are performed sequentially to manufacture a part. Machines A and B produce 5% and 6% defective items, respectively. The factory operates 8 hours each day, 5 days per week, 4.2 weeks per month. Every day each machine needs 0.30 hour for being set up. Find the machine fraction for each type (A and B) if we need to handle a demand of 1000 items per month. Use a machine-up factor equal to 85% for each machine.
The objective of the project is to protect damage of the DC motors. If the motor is not working it will be shown with red light, if working normally then green and if working at a
Compare solid shaft with the hollow: Compare solid shaft with the hollow shaft, by strength and their weight. Sol.: ( a ) Comparison by strength: Assume that both the s
Piston Rings: Piston rings (Figure), fitted into the grooves around the piston, provide a tight sealing effect between the piston and the cylinder wall thus preventing leakage of
Calculate the centroid (use point A as the reference) and the moment of inertia of the shape shown in Figure. The dimensions are given in centimeters. Calculate the moment
Convert the flow-rate from Am3/h to Sm3/h Consider a compressor (model ABC-Z4). The compressor has a suction pressure of 3 barg, and a discharge pressure of 6 barg. The inlet
Compute the maximum bending moment: A simply supported beam of 7 m length carries point loads 2 kN, 4 kN and 6 kN at distances of 1 m, 2 m & 4 m from the fixed end respectivel
Q. Explain about Ducts and Flues in steam generators? All air ducts and gas flues connecting the forced draft fan, fan intake silencer, preheater, and transition piece at the g
Vertical vessels having height-to-diameter ratios greater than 8 and weighing more than 25,000 lb. (11300 kg), shall have bending stresses in the vessel shell/skirt checked, from t
Evaluate Young modulus of elasticity - Ultimate stress: Q: The following observations were made during tensile test on mild steel specimen 40 mm in diameter and 200 mm long
Explain the Advantages of Rack Cutter? a. A single cutter of any specific pitch can cut gears of any number of teeth having similar pitch. b. The tooth profile produced is m
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