CE 201_Assessment 01

Type in the name of the force applied while chopping the onions.

Car tyres are made from rubbers. Which of the following properties will be most crucial in the selection of these rubbers?

• Tensile strength

• Modulus of resilience

• Modulus of toughness

Which of the following is true?

• 1. Engineers prefer a mix of brittle and ductile materials for aesthetic reasons.

• 1. Engineers prefer ductile materials, because brittle materials tend to fail catastrophically without warning.

• 1. Engineers prefer brittle materials, because ductile materials tend to fail catastrophically without warning.

Which among these is the unit of yield strength?

• Nm²

• N²m²

• Pa

• N/m

A cylindrical metal block whose length is four times its diameter, is pulled from both ends causing an extension of 2 inches. By what amount will the diameter shrink, given the Poisson's ratio of the metal is 0.3.

Which of the following refers to the resistance of a material to scratching?

• Resilience

• Malleability

• Hardness

• Toughness