Which zone is the hottest and efficient burning zone of the flame used – McqOptions

MCQOPTIONS

1.	Which zone is the hottest and efficient burning zone of the flame used for casting ?
A.	Oxidizing zone
B.	Reducing zone
C.	Combustion zone
D.	None of the above
Answer» B. Reducing zone

Discussion

No Comment Found

Related MCQs

Which of the following will produce the most rigid restoration for framework of same dimension ?
Which of the following zones is used for melting alloy during casting______________?
Which of the waxes are derived from the lignite_________________?
Which one of the following categories of dental materials has the highest thermal conductivity_________________?
Which one of the following dental cement accelerates the formation of reparative dentin ?
Which one of the following dental cements does not contain water as part of the composition of the liquid component ?
Which one of the following elements is NOT added is small amount to be used as grain refiners ?
Which one of the following impression materials is elastic, sets by a chemical reaction and is catalyzed by chloroplatinic acid_______________?
Which one of the following increase the strength and reduce viscosity of agar hydrocolloid impression material_____________?
Which one of the following is most elastic ?