What is the distance across the flats for a bolt defined as?

• 1.6D

• 1.8D

• 0.7D

• 0.5D

What is the thread depth on a bolt relative to the pitch?

• Half the pitch

• Equal to the pitch

• Twice the pitch

• One-third the pitch

What is the depth of the head for a lock nut defined as?

• 0.5D

• 0.8D

• 1.6D

• 1.8D

In what year was the first pedal-powered bicycle developed?

• 1817

• 1840

• 1861

• 1884

Which system is used to test the ability of a material to resist fatigue?

• Charpy system

• Wohler system

• Brinell system

• Rockwell system

What type of failure is caused by cyclic loading?

• True

• False

Which type of ferrous material is described as soft, ductile, and malleable?

• Medium Carbon

• High Carbon

• Dead Mild

• Grey Cast Iron

Which type of ferrous material is suitable for high strength and hardness applications?

• Mild

• High Carbon

• White Cast Iron

• Malleable Cast Iron

Which type of ferrous material is described as grey on fracture and strong in compression?

• White Cast Iron

• Grey Cast Iron

• High Carbon

• Medium Carbon

What is the microstructure of Dead Mild steel?

• Pearlite

• Ferrite

• Martensite

• Austenite