A casting flaw which is formed when two masses of molten metal flowing from different directions flow together, but fail to fuse, is called:

Related MCQs

• A discontinuity which is produced during solidification of the molten metal is called:
• Which type of casting is made in a metal mould?
• Flaw sizing by the 6 dB drop technique is applicable to:
• An increase in gain of how many decibels corresponds to a 5:1 increase in flaw echo amplitude?
• Compared to the echo returned from a smooth reflector, the echo returned from a natural flaw of the same area and orientation is:
• The angle formed by an ultrasonic wave as it enters a medium of different velocity than the one from which it came and a line drawn perpendicular to the interface between the two media is called:
• An indication which is formed when two pieces of magnetised steel come in contact with each other is called:
• Which of the following discontinuities would you not expect to find in a casting?
• When a casting is being non destructively examined for critical service, and the possibility of cracks exists, which of the following techniques would be best?
• What additional surface preparation or cleaning must be performed on a machined or ground aluminium casting prior to penetrant testing?