Abo Exam Pre-Test With Answers

ABO EXAM PRE-TEST WITH ANSWERS




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


Thicker temporally - ANSWER -A plus lens decentered
"out" will result in a finished lens which is
A. Balanced
B. Thicker temporally
C. Thicker nasally
D. Uniform in edge thickness

, Thicker nasally - ANSWER -A minus lens decentered
"out" will result in a finished lens which is
A. Balanced
B. Thicker temporally
C. Thicker nasally
D. Uniform in edge thickness


8% - ANSWER -An uncoated normal plastic lens will
reflect approximately ______% of light.
A. 2%
B. 4%
C. 8%
D. 12%


Biconcave - ANSWER -A lens having a minus curve on
both front and back is called
A. Toric
B. Meniscus