Engineering, 21.08.2019 03:30 michaelswagout
The pressure and temperature at the beginning of compression of an air-standard diesel cycle are 100 kpa and 100 k, respectively. at the end of the heat addition, the pressure is 6.8 mpa and the temperature is 2000 k. (a) sketch the p-v and t-s diagrams (b) determine the compression ratio and cutoff ratio (c) determine the thermal efficiency of the cycle, in %. (d) determine the mean effective pressure, in bar.
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Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.
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Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented
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At 12 noon, the count in a bacteria culture was 400; at 4: 00 pm the count was 1200 let p(t) denote the bacteria cou population growth law. find: (a) an expression for the bacteria count at any time t (b) the bacteria count at 10 am. (c) the time required for the bacteria count to reach 1800.
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Engineering, 04.07.2019 18:10
Manometers are good examples of measuring instruments, nowadays they are not as common as before. a)-capacitive probe gauges b)-gravitational gauges deformation ) gauges d)-digital gauges
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The pressure and temperature at the beginning of compression of an air-standard diesel cycle are 100...
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