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Production rate for a certain assembled product is 47.5 units/hr. The total assembly work content time = 32 min of direct manual labor. The line operates at 95% uptime. Ten workstations have two workers on opposite sides of the line so that both sides of the product can be worked on simultaneously. The remaining stations have one worker. Repositioning time lost by each worker is 0.2 min/ cycle. It is known that the number of workers on the line is two more than the number required for perfect balance. Determine
(a) number of workers,
(b) number of workstations,
(c) the balancing efficiency, and (d) average manning level.
a 1000w iron is left on the ironing board with its base exposed to air at 20degrees c. if the surface temperature is
A pipe transporting water undergoes a sudden expansion. If the upstream pressure is 200 kPa and the mass ?ux is 40 kg=s, ?nd the pressure downstream, where a uniform ?ow can be assumed, and the head lost due to the expansion. Use the following dim..
carbon dioxide is compressed in an isentropic process from 103 kpa and 22 degrees celcius to 525 kpa using a
a temperature measuring devise has been used to measure a dynamic temperature change in a system. the system is no
an ideal brayton cycle uses air as the working fluid and has a pressure ratio of 12. the compressor inlet temperature
Determine the required pressure above the propane in the tank to ensure that the NPSHA is at least 1.50 m.
Identify a rectangular duct section with an equivalent pressure loss that has a side depth of 300 mm.
at the beginning of the compression process of an air-standard diesel cycle operating with the compression ratio r 18
The volume flow Q varies with gravity g, weir width b into the paper, and upstream water height H above the weir crest. If it is known that Q is proportional to b, use the pi theorem to find a unique functional relationship Q(g, b, H )
A 100 MW steam station uses coal of calorific value 6400 kcal/kg.- Calculate the coal consumption per hour when the station is delivering its full rated output.
methane ch4 at 25 c 1 bar enters a furnace operating at steady state and burns completely with 140 of theoretical air
A 90-kg man and 60-kg woman stand side by side at the same end of of 150-kg boat ready to dive, each with a 5-m/s velocity of the boat after they have both dived, if (a) the women dives first, (b) the man dives first.
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