Answer / rahul singh

performance is the measure of quality of the work done by
any machine. better is the quality better will be the
performance of that machine.
while efficiency is the ratio of desired output
to the required input for any
machine.

Answer / arup kr borah

Performance value can be more then 1....but efficiency cant
be..( always less then 100%)...

Answer / karthick

performance is the rate at which the machine is working.for
ex no of units produced per hr.if the ratio is more then
performance of that machine is said to be high

efficiency is defined as the input given and the work
obtained from that input.for ex some kW of power is
consumed by the machine and that machine is producing some
amount of work with that power.now convert power and work
output into cost and find out the ratio.this ratio is
termed as efficiency

Answer / zenawi

efficiency is how a work is effected. whereas performance
is how a work is done .

Answer / jibin jabbar

Performance is that how a machine perform or does its
function (i.e) whether it can put forth good/optimum/bad
output for the given input
where as efficiency is the ratio of % of work output to the
% of work input

Answer / rohitmathanker

rr

Answer / purnanshu

every machines are meant to convert one form of energy to
other,now performance means whether machine is able to
convert it or not & efficiency means how effectively it
is able to convert

Answer / anil kamat

performance of any work or activity is the measure of it's
ability or level whereas efficiency of comparison of it's
actual performance to a standard set performance level.

Performance is measured whereas efficiency is calculated.

Answer / dhruv aswal

Performance is about the quality that a machine or plant is
producing suppose there are two machines, first produces
the job of accuracy .002mm and the second one produce
product of the acuuracy .001mm. then the second one will
hav higher performance.
while efficiency is the ratio of the o/p to the i/p. if
same machines are producing 200 and 100 product per day
respectively for the same i/p,then the eff. of the first
machine will be high

Answer / raghavendra rao h k

how effectively the line/machines etc are occupied in the
stream of production with the utilization of resources,
where as efficiency how well the line/machines have run
with respect to the desired or planned target.

i,e,. performance = target output/gross production hrs

efficiency = target output/net production hrs

Suppose there are two cylinders / vessels.In one cylinder the pressure is 1.5 bar & in other 0.5 bar.If both cylinder are connected internally through valve connection, what will be the final pressure in both?

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Why are not use ball bearing insted of roller bearing?

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Explain how to measure crank web deflection?

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What type of gear is the first reduction gear pinion?

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What is elasticity?

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what is the main difference between shaft and axle..?

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What is wet corrosion and galvanic corrosion?

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