77) A PERT network has three activities on critical path with mean time 3, 8 and 6 and standard deviations 1, 2 and 2 respectively. The probability that the project will be completed in 20 days is
Answer is:
0.84
Related KPCL AE Mechanical Question Paper - 2018 with Answer Key
Answer is:
Torsional vibrations
Answer is:
Gravitational force is less than the upthrust of the liquid
Answer is:
All of these
Explanation:
The tool may fail due to
* cracking at the cutting edge due to thermal stresses
* chipping of the cutting edge
* plastic deformation of the cutting edge