Question

Which of the following are the correct precautions while bending a glass tube?

• A. Select the tube of sufficient length to keep your hands safe from heat.
• B. While heating, the glass tube should be rotated in order to ensure uniform heating.
• C. Never bend the glass tubing by force. Doing so can break the tubing.
• D. All of these

Answer 1

The correct option is D All of these

We have to take following precautions while cutting a glass tube:

• Make a single deep scratch at the desired length with one stroke of file.
  
• To avoid injury, hold the glass tube with the help of a thick piece of cloth or wear protective gloves.
  
• Heat the end using a Bunsen Burner. Do not heat the end for long time. It may seal the end or make it narrow.
  
• Select the tube of sufficient length to keep your hands safe from heat.
  
• While heating, the glass tube should be rotated in order to ensure uniform heating.
  
• Never bend the glass tubing by force. Doing so can break the tubing.