Engineering

Question 1

1Strain is defined as

Hard

A. extension divided by original length B. force divided by area C. mass per volume D. force times length

Question 2

2An alloy of copper and zinc is

Easy

A. solder B. bronze C. brass D. steel

Question 3

3The ability of a material to be drawn into wires is

Hard

A. hardness B. malleability C. brittleness D. ductility

Question 4

4Which material is a good thermal insulator?

Easy

A. copper B. polystyrene foam C. aluminium D. steel

Question 5

5Bronze is an alloy of copper and

Easy

A. zinc B. tin C. lead D. iron

Question 6

6A block of mass 4 kg has a volume of 0.002 m³. What is its density?

Easy

A. 0.0005 kg/m³ B. 500 kg/m³ C. 8 kg/m³ D. 2,000 kg/m³

Question 7

7The ability of a material to be drawn out into wires is

Easy

A. ductility B. brittleness C. hardness D. elasticity

Question 8

8Stainless steel resists rusting because it contains

Easy

A. copper B. tin C. lead D. chromium

Question 9

9The ability of a material to absorb energy without breaking, such as resisting impact, is

Easy

A. toughness B. hardness C. density D. brittleness

Question 10

10Corrosion of iron can be prevented by

Easy

A. leaving it outdoors B. painting, galvanising or oiling C. heating it D. wetting it