Cast Saw Quiz

What is a cast saw used for?

• To pop balloons

• To shave hair

• To extract a person from a cast

• To cut through human skin

Why can a cast saw cut through a cast but not through human skin?

• Human skin is too soft for the saw

• The saw blades are not sharp enough

• Human skin is like an under-inflated balloon

• The saw blades are too slow

What happens when the teeth of the cast saw touch an under-inflated balloon?

• The balloon pops easily

• The balloon stretches and moves

• The balloon becomes blurry

• The balloon remains unaffected

What type of cast is made from plaster of paris?

• Synthetic cast

• Fiberglass cast

• Water-activated cast

• Traditional cast

How long does it take for a plaster of paris cast to fully dry?

• 15 minutes

• 24 to 48 hours

• A few hours

• Several days

What material is used for a synthetic cast?

• Plaster of paris

• Fiberglass

• Water-activated resin

• Rubber

What is the speed of sound in human skin?

• 10 meters per second

• 6 meters per second

• Varies from person to person

• Depends on the location

What is the Young's modulus of human skin on the back of the hand?

• Not mentioned in the video

• 300 kilopascals

• Depends on the person

• 100 kilopascals

What is the connection between vendor lock-in and razors?

• Vendor lock-in is not related to razors

• Cartridge razors are cheaper

• Razors have proprietary connection technology

• Safety razors have open standards

What is the advantage of using a safety razor?

• Lower total cost of ownership

• Higher quality shave

• More options for blades

• Easier to use