Functionality testing is what is expected.

Load testing is what it actually did.

Stress testing means increasing the load ,and cheking the performance at each level.

Load testing means at a time giving more load by the expectation and checking the performance at that leval.

Volume testing means first we have to apply initial load,then at certain time increase the load and check the performance.

The difference between static load testing and dynamic load testing is that with static load testing a certain percentage of a product is tested against a group of specifications. During dynamic testing each individual product is tested against a group of standards based on previous tests.

explain why all the load must be removed when to conduct the insulation and resistance testing

proof load testing is to try to find the % at which the equipment can lift over the safety working load.