HOW STUFF WORKS
QUIZZES

FOLLOW US
The Ultimate Power Drills Quiz
by Staff
Almost every home has a power drill, one of the most common and versatile power tools on the market. If you want to learn how it works and how to use it properly, take this quiz.

What could be considered a very unconventional use for a power drill?

  • paint mixer
  • noise-maker to scare birds away
  • improvised surgery tool

In simple terms, how does a power drill work?

  • The incoming electricity is alternating current and the resulting force-field spins the chuck
  • A motor, activated by a trigger switch, drives a rotating chuck.
  • The trigger switch sets in motion centrifugal force and the resulting vortex turns the chuck.

When was the first handheld drill developed?

  • 1895
  • 1937
  • 1950

What did the first drill weigh?

  • 29 pounds (13.2 kilograms)
  • 19 pounds (8.6 kilograms)
  • 16.5 pounds (7.48 kilograms)

Which well-known power tool company invented the cordless electric drill?

  • Makita
  • Black & Decker
  • Skil

Corded power drills are rated in terms of amps. What does this refer to?

  • power available
  • weight of the motor
  • maximum chuck opening

Are variable speed triggers available on modern drills?

  • No, modern drills don't need them.
  • Cheap drills need variable speed triggers to avoid overheating.
  • Almost all except the cheapest models have variable speeds.

What does the clutch do?

  • ensures a firm grip on the drill bit
  • controls the rotational force of the drill
  • regulates the direction of drill's spin

If you hear a clicking sound when drilling, what does this usually indicate?

  • loose drill bit
  • faulty trigger mechanism
  • disengaged drill shaft

What is a hammer drill?

  • has both rotational force and hammer action
  • a drill with a steel butt - used also as a hammer
  • an old-fashioned single speed electric drill

What is a chuck?

  • secondary clutch mechanism
  • mechanism into which you insert the drill bit
  • television show featuring power tools

If you are given a twist bit, what would you usually use it for?

  • concrete
  • tighten the chuck
  • wood or metal

When you buy a tungsten-carbide-tipped bit, what are you going to drill?

  • concrete or masonry
  • hardened steel
  • especially soft wood

You are going to put up shelves on a concrete wall, what two features are you going to need?

  • variable speed cordless drill with any new bit
  • impact drill and a tungsten-carbide-tipped bit
  • a reinforced chuck and a low clutch setting

What are the following: flat head, torque, spanner, Phillips, tri-wing, hex and torx?

  • drill accessories
  • different types of chucks
  • heads of screws

How do drill accessories compare to a machine with the same function?

  • temporary and makeshift
  • exactly the same
  • far superior

What do larger twist bits tend to do when you begin drilling?

  • bite too quickly into the surface
  • tend to wander across the surface
  • cause chuck to make a clicking sound

After marking where you want to drill, what can you do to ensure an accurate entry point?

  • Clean the surface with detergent.
  • Put a piece of masking tape over the spot.
  • Create a small crater with a punch.

When would you use the reverse function of a drill?

  • to remove screws
  • to drill a cleaner hole
  • not recommended

If your main power tool need is drilling in concrete in the house, what type of power tool would you choose, corded or cordless?

  • either
  • cordless
  • corded drill