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Author Question: Why are slotted-head screws usually installed manually using a flat-blade screwdriver? A) It is ... (Read 89 times)

Themember4

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on: Jul 24, 2018
Why are slotted-head screws usually installed manually using a flat-blade screwdriver?
 
  A) It is not possible to make flat-blade screwdriver tips for drills.
  B) It is very difficult to keep the bit aligned in the slot with a drill.
  C) The buildup of high static electricity charges can cause dangerous arcs.
  D) Federal legislation protecting domestic screwdriver manufacturers prohibits the sale of flat-blade screw driver tips for power drills.

Question 2

What is the difference between the way a self-threading and a self-drilling sheet-metal screw is used?
 
  A) Self-threading screws can only be installed with a counterclockwise rotation.
  B) Self-threading screws must have a pilot hole.
  C) Self-drilling screws can only be installed with a counterclockwise rotation.
  D) Self-drilling screws must have a pilot hole.


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vickyvicksss

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Reply #1 on: Jul 24, 2018
Answer to Question 1

B

Answer to Question 2

B


Themember4

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Reply #2 on: Jul 24, 2018
Thanks


vickyvicksss

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Reply #3 on: Jul 24, 2018
Welcome :)


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