Eni 520 engineering materials

1. Which of the followings describes the cutting force?

• Compressive force

• Shear force

• Tensile force

1. Which of the followings describes pulling force?

• Compressive force

• Shear force

• Tensile force

What is the stress for a round bar of 100 mm² in area which is subjected to a tensile force of 6000 N?

• 6 N/mm²

• 60 N/mm²

• 6000 N/mm²

Which of the following materials are considered as excellent electric conductors?

• Ceramic

• Plastic

• Copper

which among the following is not a thermal property

• Melting temperature

• Linear expansivity

• Ductility

Which of the following materials produces voltage when subjected to a pressure?

• Composites

• Piezoelectric

• Polymers

Which of the following materials is used in pressure sensors?

• Composites

• Piezoelectric

• Polymers

Which of the following mechanical properties is the most important consideration when selecting materials?

• Brittleness

• Ductility

• Strength

Which of the following fatigue failures occurs below the yield point?

• High cycle, low strain rate

• High cycle, medium strain rate

• Low cycle, medium strain rate

Which of the following tests is a non-destructive test?

• Magnetic particle

• Hardness

• Impact