15011491
Descripción
Test por Samielle Baldillo, actualizado hace más de 1 año
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Creado por Samielle Baldillo
hace alrededor de 6 años
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Pregunta 1
Pregunta
Long hair must be secured to the back of your head.
Respuesta
- True
- False
Pregunta 2
Pregunta
What things do you need to wear before beginning any laboratory exercise?
Respuesta
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Goggles
-
Safety apron or a lab coat
-
Gloves
-
All of these
Pregunta 3
Pregunta
What should you do if a glass breakage occurs?
Respuesta
-
Immediately contact your teacher.
-
Leave it where it is without telling anyone.
-
Run out of the classroom.
-
Touch it to see if it is safe.
Pregunta 4
Pregunta
What should you maintain in your lab work area?
Respuesta
-
A messy work space.
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Lots of food and drink.
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Chemicals spread all around you.
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A clean and tidy work space.
Pregunta 5
Pregunta
What should you do if a flame from a burner leaps out of the burner toward you?
Respuesta
-
Touch it with your finger to turn off the fire.
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Get out of the way and turn the gas off immediately.
-
Touch the flame to see how hot it is.
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None of these.
Pregunta 6
Pregunta
Always point a test tube or bottle that is being heated towards you and others.
Respuesta
- True
- False
Pregunta 7
Pregunta
If you are heating a liquid, what should you NEVER do?
Respuesta
-
Heat the liquid in an open container.
-
Heat the liquid in a closed container.
-
Add boiling chips to the container.
-
All of these.
Pregunta 8
Pregunta
What should you NEVER do if you have heated a container?
Respuesta
-
Test its temperature.
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Pick up the container with your hand.
-
Pick up the container with a clamp.
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All of these
Pregunta 9
Pregunta
Never heat a chemical unless instructed to do so.
Respuesta
- True
- False
Pregunta 10
Pregunta
What should you NEVER do in the lab?
Respuesta
-
Run while holding a beaker with chemicals.
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Play practical jokes on people.
-
Mess around with your friends.
-
All of these
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