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An OTA manager must help to guide staff and colleagues through defining their scope of ethical insight:

The principle of nonmaleficence includes preventing or removing harm.

A set of norms that are derived from common morality:

The principle of veracity is to be honest and truthful.

Excessive face reinforcement reduces the strength of a weld. 

Preheating and postheating does not help control distortion. 

Sometimes distortion takes place when devices such as clamps are removed. This is caused by residual stess. 

A Hi-Lo gauge can be used to check: 

Passing a qualification test with a V-groove weld with metal backing in the 3G and 4G position qualifies the welder to make: 

Chain clamps are used to fit up straight pipe and can not be used to fit up elbows, flanges and Ts.