Question

Which of the following is not correct precaution taken while using beam balance?

• A. When near the actual weight, the weights should always be tried in the descending order
• B. The beam should be lowered each time before adding or removing weights from the pan
• C. The weights should be replaced into the weight box after weighting
• D. None

Answer 1

The correct option is D None

Precaution taken while using beam balance. The weights should be carried with forceps. They should not be carried with bare fingers to avoid the change in its weight due to the presence of moisture and dust particles. Wet and hot objects should not be kept on the pan. When near the actual weight, the weights should always be tried in the descending order.

The beam should be lowered each time before adding or removing weights from the pan. The weight should be replaced into the weight box after weighting.

The lever should be turned gently, in order to prevent the knife edges from chipping.