API 577

Question 1

The level of learning and training offered by RP 577 is __________________.

Answer 1

not a replacement for AWS CWI training

Question 2

“DCEN” means.

Answer 2

direct current, electrode negative

Question 3

Another name or abbreviation for a penetrameter is:

Answer 3

I.Q.I.

Question 4

A theoretical throat dimension is based on the assumption that the root opening is equal to:

Answer 4

Zero

Question 5

Welding inspection is a critical part of any ____________ program.

Answer 5

Quality Assurance

Question 6

Welding inspection can be separated into 3 distinct stages:

Answer 6

before welding, during welding, after welding

Question 7

One of the items that should be checked prior to welding is:

Answer 7

a. confirm NDE examiners qualifications
b. confirm acceptability of heat treatment procedures
c. review WPS, PQR, and WPQ’s

Question 8

When discovered, welding defects should be:

Answer 8

removed and re-inspected

Question 9

NDE examiners should be qualified to ______ when specified by the referencing code.

Answer 9

SNT-TC-1A

Question 10

As a minimum, each Inspector should review the ______________ prior to starting each job.

Answer 10

site safety rules

Question 11

An advantage of SMAW is:

Answer 11

can be used on almost all commonly-used metal or alloy

Question 12

GTAW and SMAW can be distinguished from other processes as they are both used with _______.

Answer 12

cc power supplies

Question 13

When welding aluminum, and magnesium with GTAW, ______ is normally used.

Answer 13

AC

Question 14

GMAW can be used in 3 distinct modes of transfer. The coolest or fastest freezing of these transfers is:

Answer 14

short circuiting

Question 15

A limitation of the FCAW process is:

Answer 15

slag removal

Question 16

One of the unusual aspects of SAW is that:

Answer 16

the arc is not visible during welding

Question 17

The three welding documents required to make a production weld (as required by ASME IX) are:

Answer 17

WPQ, PQR, WPS

Question 18

F numbers are assigned to electrodes based on their ______________.

Answer 18

usability characteristics

Question 19

What type of electrodes should be stored in a heated oven after initial removal from the package?

Answer 19

low hydrogen

Question 20

Slightly damp low hydrogen electrodes should be:

Answer 20

rebaked in special ovens

Question 21

A welder continuity log should be maintained to allow verification that each welder has utilized each welding
process within a _______ period.

Answer 21

six month

Question 22

Undercut is normally found_______________.

Answer 22

at the weld interface

Question 23

Weld underbead cracking is normally found _______________________.

Answer 23

in the HAZ

Question 24

The best NDE method used to inspect butt joints volumetrically (through the entire weld) would be:

Answer 24

RT

Question 25

Hydrogen cracking may occur in all of the following welding processes, except:

Answer 25

GMAW

Question 26

In austenitic stainless steel, incomplete penetration is normally corrected by:

Answer 26

proper heat input

Question 27

“Optical aids” include which of the following:

Answer 27

mirrors

Question 28

A typical fillet weld gauge would include which of the following:

Answer 28

skew-T

Question 29

ACFM is an NDE technique that is applied to detect:

Answer 29

surface indications in carbon, alloy and stainless steel

Question 30

Eddy Current (ET) has limited use in welding inspection, but is often used in____________.

Answer 30

b. coating thickness measurement | c. measuring cladding thickness

Question 31

The NDE Examiner that performs the radiographic film interpretation should be qualified, as a minimum, to a _____.

Answer 31

ASNT Level II

Question 32

Cobalt is normally used for radiographing thicknesses of _________.

Answer 32

1.5” – 7.0”

Question 33

A film density of 1.0 will allow _______% of light through to the film.

Answer 33

10%

Question 34

Ultrasonic examination that shows a plan view of the test object would be _____________.

Answer 34

C-scan

Question 35

Each pass of the UT transducer should overlap the previous pass by _____% of the transducer dimension

Answer 35

10%

Question 36

Because of the similarities in the shape of the grains and cooling characteristics, a weld can be considered to be a small_______________.

Answer 36

casting

Question 37

A defect is also considered to be a (an):

Answer 37

rejectable flaw

Question 38

The vast majority of metallic materials used in refineries or chemical plants are ___________.

Answer 38

wrought materials

Question 39

Hydrogen in welding may come from various sources, such as:

Answer 39

a. lubricants b. moisture c. net electrodes

Question 40

Materials with high thermal conductivity will require ___________________.

Answer 40

higher heat input to weld

Question 41

Metals with a high coefficient of thermal expansion are more susceptible to:

Answer 41

warpage and distortion

Question 42

The three hardness tests normally used are the:

Answer 42

Rockwell, Vickes, Brinell

Question 43

In Rockwell hardness testing, the minor load is always____________________

Answer 43

10 kg

Question 44

One of the most common types of fracture toughness tests is the _________ test.

Answer 44

Charpy

Question 45

How does preheating carbon steel tend to reduce hydrogen-induced delayed cracking?

Answer 45

slows the cooling rate – prevents martensite formation

Question 46

Preheat is usually monitored by________________

Answer 46

a. thermocouples b. crayons c. contact pyrometer

Question 47

The primary reason for PWHT is:

Answer 47

relieve residual stresses

Question 48

Hardness and hardenability are two terms that:

Answer 48

mean two different properties

Question 49

A typical test for hardenability is the ___________.

Answer 49

Jominy Bar test

Question 50

The general Brinell Hardness limit for 5CR-Mo steels is:

Answer 50

241

Question 51

Which of the following elements influences the mechanical properties of weldments more than any other?

Answer 51

carbon

Question 52

A very specialized external loading weld test is the _________ test.

Answer 52

bend

Question 53

Austenitic stainless steels typically contain chrome and nickel, and are used for:

Answer 53

a. corrosion resistance | b. resistance to high temperature degradation

Question 54

The most common measure of weldability and hot cracking of stainless steel is the _________.

Answer 54

ferrite number

Question 55

``` An extra-low hydrogen electrode (H4) should be used when hot tapping carbon steels with a CE greater than _____________(%) ```

Answer 55

0.43

Question 56

To reduce burn-through potential, liquid flow rates should be between _________ and _________ when hot-tapping.

Answer 56

0.4 – 1.2 m/sec

Question 57

A common weld defect encountered with the GMAW-S welding process is:

Answer 57

LOF