TEP WCI 3

What is the melting point range of common low carbon steel?

• 550 - 700 °C

• 800 - 900 °C

• 1400 - 1500 °C

• 300 - 400 °C

List down 3 types of hardness test method:

• Mohs Hardness Test
• Brinell Hardness Test

• Vickers Hardness Test

• Rockwell Hardness Test

PMI stands for:

• Project Management Indicator
• Positive Material Identification

• Project Management Index
• Project Management Insight

What are the carbon and chromium compositions in austenitic stainless steel ASTM A240 Type 304L?

• max. 0.02% carbon and 22-24% chromium

• max. 0.03% carbon and 18-20% chromium

• max. 0.01% carbon and 20-22% chromium

• max. 0.05% carbon and 16-18% chromium

Cobalt based alloy is normally used for machinery rotating parts, cutting tools and gas turbines due to:

• its high strength, corrosion resistance, and ability to withstand high temperatures
• its preference for low temperatures and humidity
• its ability to conduct electricity efficiently
• its low strength and poor corrosion resistance

 Spiral wound gasket is normally made of:

• Wood and glass material
• Metal and filler material
• Plastic and rubber material
• Ceramic and fabric material

What is ferromagnetic material?

• Ferromagnetic materials are substances that repel magnetic fields.
• Ferromagnetic materials are substances that can be magnetized and retain their magnetization after the external magnetic field is removed.
• Ferromagnetic materials are substances that lose their magnetization when the external magnetic field is removed.
• Ferromagnetic materials are substances that are not affected by magnetic fields.