Question

Identify the wrong way of handling a beam balance:

• A. The lever should be turned fast in order to prevent the knife edges from chipping
• B. The weight should be replaced into the weight box after weighing
• C. Wet and hot objects should not be kept on the plan
• D. When near the actual weight ,weights should be tried in decreasing order
  

Answer 1

The correct option is A The lever should be turned fast in order to prevent the knife edges from chipping

The lever should not be turned fast. It should be turned gently.

Meanwhile, let us look at all the precautions in using a beam balance:
1. The weight should be replaced into the weight box after weighing.
2. Wet and hot objects should not be kept on the plan.
3. When near the actual weight ,weights should be tried in decreasing order.
4. The beam should be lowered before adding or removing weights from the pan.
5. The lever should be turned gently in order to prevent the knife edges from chipping.