6 Question Quiz - Brown & McCoy

Why did people not want to answer their doors?

• It was dark outside

• The weather was too extreme

• There was lots of crime

• They were tired of salespeople.

What did Brown invent?

• "Ring" doorbell

• doorbells

• microphones

• security system

When did Brown receive a patent?

• 1956

• 1961

• 1966

• 1971

Which device did NOT use McCoy's invention in the article?

• bicycle

• factory machines

• ships

• trains

What was one effect of McCoy's invention?

• The number of trains increased

• Loads could be heavier

• Trains traveled at faster speeds

• Trains could travel farther without stopping

Why was it a problem that engines had to be stopped before they could be greased or lubricated?

• It was dangerous to stop the engine

• They could run out of fuel

• It added extra work and time to using the machines

• The people greasing the engine could get dirty.