Engineering Economics
What stock represents ownership and enjoys certain preferences than ordinary stock?

Preferred stock
Authorized stock
Incorporator’s stock
Presidential stock

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Engineering Economics
Pick up the correct reason for making conceptual (or preliminary) estimate from the following:

To have a check on a definitive cost estimate
All of these
To compute target estimate for the owner while drawing and specifications are in initial stage
To check quotations from contractors and/or sub-contractors

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