Phcc Ch 6: Mechanical Properties

What type of load tends to pull material apart?

• compression

• tensile

• shear

• stress

What type of load tends to push material together?

• compression

• tensile

• shear

• stress

Where permitted, a plumber should always make which type of hole in a structural member?

• round, jagged

• square, jagged

• rectangular, smooth

• round, smooth

Beams are usually visualized as

• vertical

• horizontal

• bent

• angled

Which building member is usually vertical and loaded in compression?

• beams

• steel bar joists

• columns

• I-beams

On which side of a building member should a plumber place a load?

• tensile

• compressive

• left

• right

To protect piping from nail punctures, where can it be placed?

• next to a stud

• next to a joist

• in the middle of the wall or ceiling

• nowhere

How do columns normally fail?

• collapsing

• buckling

• bending

• crushing

How do steel beams normally fail?

• bending

• compression

• tension

• rolling

How do wood and concrete beams usually fail?

• collapsing

• 45° shear lines

• bending

• buckling