Which type of detector is sensitive to sunlight?
A. Ionization detector.
B. Photoelectric detector.
C. IR detector.
D. UV detector.
Ans: C. IR detector.
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Two angles are ____________________ when their sum is 180o.
Fill in the blank(s) with the appropriate word(s).
Which of the following is an incorrect statement?
A) A CFC or HCFC refrigerant recovered from a system can be returned to the same system. B) When opening a sealed system, CFC or HCFC refrigerant must be recovered and stored in approved containers. C) Anyone releasing CFC or HCFC refrigerants to the atmosphere is subject to fines and the possibility of a jail term. D) CFC or HCFC refrigerant recovered from one system can be used in another system, regardless of system ownership.
Forms for circular piers are made of steel or _____.
a. plastic b. laminated plywood c. waterproof fiber d. fiberglass
Which of the following statements is LEAST-Likely true?
A. On the drive side of the gear tooth, pulling the pinion gear away from the ring gear (toward the heel of the gear tooth) moves the pattern from the toe flank to the heel face. B. When the pinion is moved out of mesh, backlash decreases. C. When the shim is too thin, the drive pinion is moved out of mesh (too far away) from the center line of the ring gear. D. When the shim is too thick, the drive pinion is too close to the center of the ring gear tooth.