ABO EXAM PRE-TEST| 100 Questions| Correct Answers| Verified

150 mm - ANSWER When ordering a six inch temple, its corresponding millimeter value is which of the following? A. 135 mm B. 140 mm C. 145 mm D. 150 mm 500 mm - ANSWER What is the focal length of a 2 diopter lens? A. 500 cm B. 39.37 inches C. 500 mm D. 2 meters Nanometers - ANSWER Wavelengths are measured in A. Meters B. Decimeters C. Centimeters D. Nanometers UVC - ANSWER Which of the following has the shortest and therefore most harmful wavelength? A. UVC B. UVB C. UVA D. INFRARED Compound one another - ANSWER When two light wavesw are in "in phase" they will A. Destroy on another B. Reduce each front by half C. Compound one another D. None of the above Plus or minus 3 degrees - ANSWER The cylinder axis tolerance for a 1.00D cylinder according to ANSI Z80.1 is A. Plus or minus 7 degrees B. Plus or minus 5 degrees C. Plus or minus 3 degrees D. Plus or minus 2 degrees