12 eg test 3

what type of head is this?

• round
• buttress
• square
• whitworth

what is a lead?

• a 720 degree turn
• a 180 degree turn
• a comple 360 degree turn
• 90 degree turn

A screw helps us

• hold things together

• tear things apart

• breath

A screw with threads that are close together

• makes work harder to do

• makes work easier to do

• does not work at all

What type of simple machine is found on the cap of a pickle jar?

• lever
• inclined plane
• pulley
• screw

Which screw uses less force?

• top

• bottom

• they both use the same force

Washer

• 
• 
• 
• 

When describing screw threads, the distance from a point on one thread to a corresponding point on the next thread is called the ____.

• root
• key
• pitch
• crest

What is D?

• Pitch
• Pitch Diameter
• Major Diameter
• Minor Diameter

What is B?

• Pitch
• Pitch Diameter
• Major Diameter
• Minor Diameter