Correct answer
B. Under air compression
Explanation
The correct answer is Under air compression.
Which of the following decrease with strain hardening________?
Mouth temperature waxes are________?
During polymerisation of acrylic resin, above what temperature benzoyl peroxide form freeradicals________?
Cavo surface angle for amalgam resoration is butt joint as________?
Chemical tempering in porcelains is done to interrupt crack propagation by________?
Which of the following acts as accelerator in Zinc oxide eugenol________?