Procedure

What is the names of the instruments/tools explained in the procedures?

(Choose two answers)

• Fume hood

• Balance room

• Tecklu burner

• Volumetric flask

"We have to open it slightly so the gas that comes from the gas source is not excessive."

What is the meaning of the word 'excessive' in that sentence?

• more than is necessary, normal, or desirable

• easily set on fire

• extremely good or outstanding

• able or likely to cause harm or injury

In one of the procedures, it is said that we should know ... we are working on before using the tool.

• the amount of the chemical

• the type of the chemical

• the name of the tool

• the location of the tool

In one of the procedures, we have to ... so the gas that comes from the gas source is not excessive

• open the tool slowly

• wait the flame

• open the gas source

• open the tool slightly

In one of the procedures, we have to close the gas source to ... .

• control the flame

• turn the tool off

• turn the flame off

• adjust the flame

In one of the procedures, it is said that the tool needs flame and the flame is lighted by using ... .

• wooden lighter

• flash light

• fire source

• fire extinguisher

In one of the procedures, before using the tool, we have to wear ... .

• safety gloves

• safety belt

• safety gear

• safety valve

In one of the procedures, it is said that when we go away from the tool, we have to ... .

• close the sash

• check the airflow

• keep our face away

• place the chemical substance in it

In one of the procedures, how long should the sash be put from the work surface?

• Far away

• 10-20 cm

• 20-30 m

• 200-300 mm

In one the procedures, it is said that we can only put one part of our body to the tool. Which parts are they?

• Head

• Fingers

• Hands

• Nose