Estimate the weight of concrete in a 4-lane highway segment that begins as a 3 percent grade climb from 1 000 feet of altitude to 4 000 feet and then a 6 percent downgrade to 2 500 feet.
What will be an ideal response?
This problem is an estimation problem. Each student's answers may vary and an exact answer is not provided.
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____________________ welds are used when the strength of a full-length weld is not required, to speed up the welding process and reduce welding cost, to reduce welding heat distortion, or to help stop weld bead cracking.
Fill in the blank(s) with the appropriate word(s).
Two technicians are discussing testing a catalytic converter. Technician A says that a vacuum gauge can be used and observed to see if the vacuum drops with the engine at 2500 RPM for 60 seconds. Technician B says that a pressure gauge can be used to check for backpressure. Which technician is correct?
A) Technician A B) Technician B C) Both technicians D) Neither technician
What is the first step in determining the roof shape?
A. determine the location of all ridges B. locate any raised roof areas C. trace the outline of the exterior walls and all exterior support posts D. draw all lines representing hips or valleys
____ inductors are used for all large inductors.
A. Air-core B. Ferrite and powdered iron core C. Toroid-core D. Laminated iron-core