Heat Treatment in Metals Quiz

What can heat treatment do to a metal?

• Make it softer and less ductile

• Make it harder, stronger, and more resistant to impact

• Make it lighter and more colorful

• Make it magnetic

What is the result of heating and cooling in heat treatment?

• Change in color

• Change in structure

• Change in weight

• Change in volume

What is the comparison used for a mechanical mixture in alloys?

• Mixture of oil and water

• Mixture of sand and gravel in concrete

• Mixture of salt and sugar

• Mixture of air and water

What is the main difference between ferrous and nonferrous metals in terms of heat treatment?

• Ferrous metals cannot be hardened

• Nonferrous metals cannot be annealed

• Ferrous metals can be tempered

• Nonferrous metals can be normalized

What is the purpose of annealing in heat treatment?

• To make the metal magnetic

• To soften the metal

• To change the color of the metal

• To increase the weight of the metal

At elevated temperatures, carbon in steel is dissolved in the iron matrix in the form of what?

• Ferrite

• Martensite

• Cementite

• Austenite

What has the greatest influence on the critical points of heat treatment?

• Temperature

• Pressure

• Percentage of carbon

• Time

What is used to build up hydraulic pressure in the Brinell tester?

• Hand pump or electric motor

• Air compressor

• Water pump

• Manual lever

What is used to measure the diameter of the impression in the Brinell test?

• Calibrated microscope

• Ruler

• Vernier caliper

• Laser scanner

What is the major load in kilograms for the B-scale setup?

• 50 kg

• 75 kg

• 100 kg

• 125 kg