Question { 6551 }

what is the difference between NC & CNC machine.what is the
difference between equipment & machine tool

Answer

NC means numerical control and cnc means compurised
numerical controls.NC control evaluate before cnc. where
part program changed by using PC or LAPTOP.it take more
time to new setup and man machine interface is not there.
but in cnc there is facility change program and see the
control status on the screen directly.

Question { 22544 }

What is the full form of AND,OR and other logic gates

Answer

I agree with answer no 4. but thisi know the difference b/w
this two
1. AND gate - it performed the multiplication b/w two inputs
its output is high only when buth input input is high
and its output is low when one of the input is low or high

2. OR gate - it performed addition b/w two inputs
its output is high when one of the input is high
its output is low when both the input is low.
i thing this the best example to explain to the interviers