Which defect is caused due to the conversion of moisture to steam bec – McqOptions

MCQOPTIONS

1.	Which defect is caused due to the conversion of moisture to steam because of the heat of molten metal?
A.	blow holes
B.	open blows
C.	air inclusions
D.	cold shut
Answer» B. open blows

Discussion

No Comment Found

Related MCQs

The heater in the vacuum forming process is heated up to 90°C.
In inertia friction welding energy of welding machine is used.
Friction welding produces quality joints, with a 100% weld.
Friction welding is process.
All metallic engineering materials which are can be friction welded.
In friction welding process, materials are joined by motion between materials.
Binding property of the sand increases because of the property.
The property ensures the removal of excess sand in the mould box.
The is responsible for the impact strength in the molding sand.
When forming “Z” sections, the product is twisted in the opposite direction to compensate the machine generated twist.