Introduction to Laboratory Apparatus and Safety

Try these questions

5 questions from this lesson’s quiz. Start the lesson to answer them and see the right answers.

1. 1. Which hazard symbol would you expect to see on a bottle of concentrated hydrochloric acid that can burn skin and eat away metal?

   • A. Flammable symbol (open flames)
   • B. Corrosive symbol (liquid dripping onto a hand and a surface)
   • C. Radioactive symbol
   • D. Toxic symbol (skull and crossbones)

2. 2. A learner splashes dilute acid on their arm during a practical lesson. What is the correct immediate first aid response after alerting the teacher?

   • A. Rub butter on the skin to soothe it
   • B. Cover the area with cream or ointment
   • C. Flush the area under cold running water for about 15 minutes
   • D. Wipe the area with a dry cloth and continue working

3. 3. Which of the following sets contains only metalware used to support and hold apparatus?

   • A. Beaker, test tube, boiling tube
   • B. Tripod stand, wire gauze, retort clamp
   • C. Measuring cylinder, thermometer, beam balance
   • D. Conical flask, tripod stand, thermometer

4. 4. A learner reads the volume of water in a measuring cylinder. How should the reading be taken to avoid parallax error?

   • A. With eyes level with the bottom of the meniscus
   • B. From above, looking down into the cylinder
   • C. From below the cylinder, looking upwards
   • D. By holding the cylinder in the hand and tilting it

5. 5. What term describes a substance that can chemically destroy living tissue and solid materials such as metal?

   Type your answer in the lesson.

More in Laboratory Apparatus & Instruments

• ▸Safe Handling and Care of Optical Instruments The Microscope
• ▸Electrical Safety and Safe Circuit Assembly
• ▸Safe Chemical Handling
• ▸Laboratory Safety Showcase
• ▸Heating Apparatus The Bunsen Burner
• ▸Supporting and Heating Glassware
• ▸Apparatus for Measuring Temperature
• ▸Measuring Length and Area

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