Engineering Economics
A telephone switchboard 100 pair cable can be made up with either enameled wire or tinned wire. There will be 400 soldered connections. The cost of soldering a connection on the enameled wire will be P 1.65 on the tinned wire, it will be P 1.15. A 100- pair cable made up with enameled wire cost P 0.55 per linear foot and those made up of tinned wire cost P 0.75 per linear foot. Determine the length of cable run in feet so that the cost of each installation would be the same.

1,120 feet
1,000 feet
1,100 feet
1,040 feet

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Engineering Economics
Using factor method, the depletion at any given year is equal to:

Initial cost of property times number of units sold during the year
Initial cost of property times number of unit sold during the year divided by the total units in property
Initial cost of property divided by the number of units sold during the year
Initial cost of property divided by the total units in property

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Engineering Economics
The key to profitable operation for project cost control, is:

None of these
To keep the project cost within the cost budget and knowing when and where job costs are deviating
To keep the project cost equal to subsequent construction budget
To keep the project cost equal to original cost estimate

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