API 650 OPEN BOOK

A-516-70 Plate that is normalized is a group _____ material

The maximum Excessive reinforcement allowed on the vertical joint for a new 3/4" plate?

What is the minimum tensile strength of an A-841 Class 2 plate

Maximum misalignment allowed on a 1" thick vertical shell weld is ______ inch.

A new concrete ring wall is installed. around the entire circumference, the ring wall should be level within _______ inch

The maximum weld undercut allowed on a nozzle fillet weld is ______ inch

The letters on a nameplate should be at least ______ high

When installing a new course, at what plate thickness should the entire vertical weld be radiographed?

The minimum thickness allowed for the skin of an internal aluminum floating rood is _________ inch

A new 40 foot diameter API 650 tank is being built. Shell plate used for this tank should never be less than:

Overlap for a single welded lap joint never needs to exceed ________ inch(es)

On a specific tank, the bottom course is 0.800" and the 2nd course is 0.600". the vertical welds in these courses must be offset by:

A stiffening ring at the tanks top made from plate has a minimum new thickness of _______ inch

Annex M of API 650 provides additional requirements for tanks that operate above _________ degrees F, But not exceeding _______ degrees F

The minimum size of a manhole on an external floating roof is ______________ inches

The tank nameplate should be attached near a shell ______

Surface porosity must not exceed; 1 cluster every ______ inches, and the diameter of the cluster does not exceed ______ inch(es).

The maximum nominal thickness allowed by API 650 for ASTM A-283 Grade C plates is ________ inch(es)

Shell plate that is 3/8" must be shaped to the curvature of the tank when the tank diameter is ______ feet

The slope of a cone roof tank must be at least _______

Bottom plates are 1/4". The minimum fillet weld size for these welds is _______ inch

Repads are not need for tank nozzles < ______ NPS

The bottom course is 1" thick and the sketch plate is 1/4" thick. The minimum size of the fillet for the bottom to shell weld is ________ inch

Thickened insert plates should have a taper of:

A tanks bottom course is 0.750" thick. During the hydrotest, what is the maximum fill rate for the lower tank courses? ______ inch/hr

The bottom course is 0.750" thick and the sketch plate is 3/8" thick. The minimum size of fillet for the bottom to shell weld is _____ inch

What is the maximum size of a rectangular roof opening?

Stiffening rings that can trap water should have drain holes that are

A new stairway is added to a tank. the stairs must be at least _____ wide.