ASVAB Shop Information 5

Question 1

What does it mean when a drill bit is described as 'high-speed steel' (HSS)?

Accepted Answer

It is made from steel alloy that retains hardness at high temperatures

Answer

High-speed steel (HSS) is an alloy that maintains its hardness and cutting edge even when the bit heats up from friction during drilling.

Question 2

In masonry work, what is the main ingredient that makes Portland cement harden?

Accepted Answer

Water triggering a chemical reaction with calcium silicates

Answer

Water triggers hydration of calcium silicate compounds in Portland cement, causing it to crystallize and harden through a chemical process.

Question 3

Which hand saw has fine teeth and a stiffening rib along its back, used for precise joinery cuts?

Accepted Answer

Back saw

Answer

A back saw has a rigid spine along the top of the blade that prevents bending, allowing accurate fine cuts in wood joinery.

Question 4

What is the function of a snap ring (circlip) in mechanical assemblies?

Accepted Answer

To retain components on a shaft or inside a bore without threading

Answer

A snap ring fits into a groove on a shaft or in a housing to act as a removable shoulder that prevents axial movement of components.

Question 5

When using a table saw, what device is positioned directly behind the blade to prevent the wood from pinching and kicking back?

Accepted Answer

Splitter/riving knife

Answer

A splitter or riving knife follows immediately behind the blade, keeping the cut open so the wood cannot close and bind against the blade.

ASVAB - Armed Services Vocational Aptitude Battery Practice Test