Powdered gold is___________________? A. Made by a combination of chemical precipitation and atomization B. Made by electrolytic precipitation C. Made by beating pure gold at high temperatures D. Made by milling pure gold ingots

Which of the following is true about direct filling gold______________? A. Properly condensed mat gold has no voidsB. Whatever may be the type voids are inherent C. Voids can be avoided with manual condensation D. None of the above

The malleting force is directed______________? A. Perpendicular to the walls B. Parallel to long axis of crownC. 45° to the wall D. None of the above

Pitting of direct filling old restoration usually results from_________________? A. Using contaminated gold foil B. Poor finished preparationC. Improper stepg of condenser point D. Using small condenser point

The cohesive gold used as bulk filler is_____________? A. Electra alloyB. Mat gold C. Spherical gold D. Gold foll