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

81) The stress induced in a body will be shear stress, when it is subjected to

Answer is:

Torsional vibrations

Explanation:

82) Two closely coiled helical springs 'A' and 'B' are equal in all respects but the number of turns of spring 'A' is half that of spring 'B' The ratio of deflections in spring 'A' to spring 'B' is

Answer is:

(1/2)

Explanation:

83) When a body is placed over a liquid, it will float if

Gravitational force is equal to the upthrust of the liquid

Gravitational force is less than the upthrust of the liquid

Gravitational force is more that the upthrust of the liquid

None of the above

Answer is:

Gravitational force is less than the upthrust of the liquid

Explanation:

84) The tool may fail due to

Cracking at the cutting edge due to thermal stresses

Chipping of cutting edge

Plastic deformation of the cutting edge

All of these

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

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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

0.84

For More KPCL AE Mechanical Question Paper - 2018 with Answer Key

Related KPCL AE Mechanical Question Paper - 2018 with Answer Key

81) The stress induced in a body will be shear stress, when it is subjected to

Torsional vibrations

82) Two closely coiled helical springs 'A' and 'B' are equal in all respects but the number of turns of spring 'A' is half that of spring 'B' The ratio of deflections in spring 'A' to spring 'B' is

(1/2)

83) When a body is placed over a liquid, it will float if

Gravitational force is less than the upthrust of the liquid

84) The tool may fail due to

All of these

For More KPCL AE Mechanical Question Paper - 2018 with Answer Key