ABO Practice Test Set Questions And Revised Correct Answers | Already Passed!!

ABO Practice Test Set Questions And Revised Correct Answers | Already Passed!! To mount a lens in a nylon suspension type frame, it would be necessary to _______ the lens. a) Drill b) Notch c) Groove d) V-Bevel - ANSWER : c) Groove The optical center of a lens is: a) At the geometrical center b) One the 180 line c) At the point where the "a" and "b" measurement meet d) A lens location of zero deviation of the optical axis - ANSWER : d) A lens location of zero deviation of the optical axis The progressive power lens has a progressive zone after where power: a) Gradually increases b) Of the cylindrical increases c) Stays the same d) Abruptly changes - ANSWER : a) Gradually increases Standard transmissions in sunlenses should range between a) 10% and 30% b) 15% and 30% c) 10% and 25% d) 15% and 25% - ANSWER : b) 15% and 30%