How are hidden or invisible edges of an object specified in a working drawing?
What will be an ideal response?
Hidden lines and invisible edges are denoted by dashed lines.
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What is the reason to use cylinder unloading in high pressure chillers?
What will be an ideal response?
Technician A says the primary shoe is usually the shoe toward the front of the vehicle. Technician B says the lining material on the secondary shoe usually has less area than that on the primary shoe. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
?What angle describes the tilt of Earth relative to its orbital plane?
A. ?declination angle B. ?inclination angle C. ?deviation angle D. ?solar azimuth angle
The lockout relay provides a mechanical means of preventing the switch contacts from closing ____ the motor starting circuit is energized.
a. unless b. if c. if and only if d. even if