Relevant Competitive Tests:
Back pressure porosity can be avoided by________________?
A. Using asbestos linear
B. Placing the sprue at least one quarter inch away form the end of casting ringCorrect Answer
C. Preventing rapid heating the investment in burnout oven
D. Using a short and wide sprue
Correct Option: B. Placing the sprue at least one quarter inch away form the end of casting ring
This question has been verified by the PakPrep community moderation network for competitive examination accuracy.
Subject Overview
Explore thousands of solved past paper MCQs for Dental Materials categorized with explanations.
Browse All Dental Materials MCQs →Related Questions
Condensation shrinkage of porcelain during firing depends on__________________?Porcelain is best fired__________________?Porosity in porcelain can be prevented by_______________?Which of the following is the main constituent of porcelain__________________?The best tissue tolerated material for crown and bridge_______________?