A cement that is used when concrete forms must be removed as soon as possible is Type _____
a. IA
b. II
c. III
d. IV
c
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How much additional length must be added to 1 1
2 - inch thick insulation being wrapped around a rectangular duct? a. 6 inches b. 8 inches c. 10 inches d. 12 inches
What does AHRI do?
A) It represents over 90% of the HVACR manufacturers. B) It is an organization devoted to educating HVACR technicians. C) It is dedicated to engineering of HVACR systems and application. D) It writes most government mechanical and electrical codes.
After adjusting tie-rod ends, which of the following precautions should be observed when tightening the clamps?
A. ensure that the tie-rod end threads extend into the tie-rod beyond the split slot B. ensure the clamps and fasteners do not interfere with other components during a full turn C. ensure that there is a space between the clamp and the end of the crosstube D. all of the above
Which of these statements about overhead clearance is true?
a. If the road surface causes your vehicle to tilt toward objects at the edge of the road, you should drive close to the shoulder. b. The weight of a vehicle changes its height. c. You should assume posted clearance signs are correct. d. Extra speed will cause air to push your vehicle down for extra clearance.