Why is control of welding essential in fabrication?

A WPS gives:

Although WPSs are shopfloor documents, inspectors need to:

Before making production welds, welders must:

. A welding procedure is usually qualified by:

The principal purpose of qualification tests is to demonstrate:

. Production welds made under conditions similar to test welds should:

A pWPS is written by:

Who makes the test coupon in accordance with the pWPS?

A welding inspector records:

Who may be requested to monitor procedure qualification?

Test coupons are subjected to:

A WPQR includes:

. If a third party inspector is involved, they:

The test coupon is destructively tested by:

Additional tests may include:

European and American standards specify:

One principal standard covers:

Procedure qualification standards apply to:

. Alternatives to test weld qualification include:

A successful procedure qualification test results in:

Once WPQR is produced, the engineer can:

Welding conditions on a WPS are called:

Essential variables are:

Non-essential variables:

Essential variables govern:

If welding outside qualification range, one option is:

Another option if outside range is:

. Most essential variables are similar in

Example of an essential variable:

PWHT qualification is specific because:

Parent materials are grouped by:

Welding consumables must:

Thickness qualification range:

Current type qualification:

. Preheat requirement:

. Interpass temperature requirement:

Heat input rule (impact requirement):

Heat input rule (hardness requirement)

WPSs are effective only if:

. Welders must also:

Welding Standards give guidance on:

Principal EU standards specify:

Welder qualification standards apply to:

Welder qualification tests demonstrate:

Manual and semi-automatic welder tests check:

Mechanised welding tests focus on:

. American Standards allow qualification by

. Welder qualification steps begin with:

Who makes the welder qualification test weld?

. The welding process qualified for a test weld:

Joints tested after PWHT:

Parent materials are assigned a Group Number based on:

Qualification allows welding of:

Welding consumables for production must:

A thickness range for qualification is based on:

In current type qualification, AC qualifies for:

In current type qualification, DC polarity:

Pulsed current qualification covers:

The minimum preheat temperature applied in production is:

The maximum allowed interpass temperature in production welding is:

When impact requirements apply, maximum heat input allowed is:

. When hardness requirements apply, the minimum heat input allowed is:

Successful use of qualified WPSs depends on:

Welders must also have the skill to:

Welding Standards provide guidance on:

For manual and semi-automatic welding, qualification tests demonstrate:

For mechanised and automatic welding, qualification tests demonstrate

. American Standards allow welders to qualify by:

In welder qualification, the welding engineer prepares:

The welder makes the test weld in accordance with:

The welding inspector ensures

The test coupon for welder qualification is subjected to:

In some cases of welder qualification, destructive tests required may include:

A welder’s Qualification Certificate includes:

. If a third party is involved in welder qualification, they:

A welder is allowed to make production welds within:

The range of qualification for welders is based on:

Essential variables for welder qualification:

The range of qualification for welders compared to WPS qualification is

. Welding process qualification for welders means:

In welder qualification, butt welds

In welder qualification, fillet welds:

Parent materials in welder qualification are grouped by:

Compared to procedure qualification groups, welder qualification material group

Electrodes and filler wires for production welding must:

Material thickness qualification for welders allows:

For pipe diameter, welder qualification is:

For test pieces above 25 mm diameter, minimum qualified diameter is:

Welding positions qualification

A welder’s qualification begins from:

The welder’s qualification certificate must be confirmed every:

If a welder’s certificate is not confirmed within 6 months:

A welder must be retested every:

A welder’s certificate is valid for 2 years if:

Certificate prolongation by examiner requires:

Supporting evidence for prolongation must include:

The production welds used as supporting evidence must:

. Supporting evidence welds must have been made:

Supporting evidence welds must be made