A father notes that when his teenage daughter uses the telephone, she takes not less than 6 minutes for a call and som? times as much as an hour. Fifteen minutes call are more frequent than calls of any other duration. If these phone calls were an activity in PERT project, then phone calls expected duration will be

Construction Planning and Management
A father notes that when his teenage daughter uses the telephone, she takes not less than 6 minutes for a call and som? times as much as an hour. Fifteen minutes call are more frequent than calls of any other duration. If these phone calls were an activity in PERT project, then phone calls expected duration will be

21 minutes

15 minutes

27 minutes

20.143 minutes

21 minutes

15 minutes

27 minutes

20.143 minutes

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Construction Planning and Management
Assertion A: For a given depth of cut, the output of a power shovel can be increased by decreasing the angle of swing.Reason R: If the angle of swing is decreased, the cycle time will be decreased.

A is true but R is false

Both A and R is true but R is not the correct explanation of A

A is false but R is true

Both A and R is true and R is the correct explanation of A

A is true but R is false

Both A and R is true but R is not the correct explanation of A

A is false but R is true

Both A and R is true and R is the correct explanation of A

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Construction Planning and Management
Which one of the following represents an event?

Plastering of walls

Concrete cured

Selecting sites

Fixing of door

Plastering of walls

Concrete cured

Selecting sites

Fixing of door

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Construction Planning and Management
If an activity has its optimistic, most likely and pessimistic times as 2, 3 and 7 respectively, then its expected time and variance are respectively

4 and 5/6

3.5 and 5/6

3.5 and 25/36

5 and 25/36

4 and 5/6

3.5 and 5/6

3.5 and 25/36

5 and 25/36

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Construction Planning and Management
A tractor whose weight is 20 tonnes has a drawbar pull of 2500 kg, when operated on a level road having a rolling resistance of 30 kg per tonne. If this tractor is operated on a level road having a rolling resistance of 40 kg per tonne, then the drawbar pull of the tractor will

Reduce by 200 kg

Increase by 250 kg

Increase by 200 kg

Reduce by 250 kg

Reduce by 200 kg

Increase by 250 kg

Increase by 200 kg

Reduce by 250 kg

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Construction Planning and Management
A tractor shovel has a purchase price of Rs. 4.7 lacs and could save the organization an amount of rupees one lac per year on operating costs. The salvage value after the amortization period is 10% of the purchase price. The capital recovery period will be

4.23 years

7.87 years

3.7 years

5 years

4.23 years

7.87 years

3.7 years

5 years

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Construction Planning and Management

Construction Planning and Management Assertion A: For a given depth of cut, the output of a power shovel can be increased by decreasing the angle of swing.Reason R: If the angle of swing is decreased, the cycle time will be decreased.

Construction Planning and Management Which one of the following represents an event?

Construction Planning and Management If an activity has its optimistic, most likely and pessimistic times as 2, 3 and 7 respectively, then its expected time and variance are respectively

Construction Planning and Management A tractor shovel has a purchase price of Rs. 4.7 lacs and could save the organization an amount of rupees one lac per year on operating costs. The salvage value after the amortization period is 10% of the purchase price. The capital recovery period will be

Construction Planning and Management
Assertion A: For a given depth of cut, the output of a power shovel can be increased by decreasing the angle of swing.Reason R: If the angle of swing is decreased, the cycle time will be decreased.

Construction Planning and Management
Which one of the following represents an event?

Construction Planning and Management
If an activity has its optimistic, most likely and pessimistic times as 2, 3 and 7 respectively, then its expected time and variance are respectively

Construction Planning and Management
A tractor shovel has a purchase price of Rs. 4.7 lacs and could save the organization an amount of rupees one lac per year on operating costs. The salvage value after the amortization period is 10% of the purchase price. The capital recovery period will be