Closed book 4 Flashcards

1
Q

Profile RT may be used for measuring

A

nozzle thickness

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Minimum temperature for repair welding

A

0F or -20C

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

PMI tools shall be calibrated

A

as specified by the manufacturer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What material can be used to reduce the effect of CUI

A

Closed cell foam

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Arc blow is caused by

A

magnetic forces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Inaccurate RT or UT results

A

do more UTT via A B or C scan (fucking dumb i know)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Filler material is weaker than the parent, repair thickness must not be more than

A

50% of required thickness of base metal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Stainless steel weld repairs in hydrogen service should be cooled down then tested by

A

PT (before UT after 24 hours)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Safety aspects of hot tapping are found in

A

API 2201

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

CDW is used for materials which are XXX than those that use PWHT

A

More brittle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Examination point is

A

a recording point within a CML

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

who is responsible for determining the amount of PMI required on materials for repair

A

Owner/user

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

After CDW, the final weld layer should be

A

Ground flush to bare metal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

After repairs, for vessels susceptible to Brittle fracture

A

additional surface NDE requested by inspector

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Advantage of stud welding

A

can be used in any position

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Before removing a PRV what should be checked

A

connected piping

17
Q

what should be done if sulfidisation is anticipated

A

proactive & retroactive PMI programs

18
Q

Discontinuity usually found in the weld toe

19
Q

Clean fracture and low impact toughness shows that the material is

20
Q

Preferred method for finding SCC is

21
Q

if finding a gauge glass assembly vibrating, the inspector should

A

consult with a qualified engineer

22
Q

new vessels installed, with completed MDR, the inspector should

A

EXTERNAL inspection

23
Q

best method to mitigate caustic SCC in steam service

24
Q

insert plates can have the RT substituted by UT if

A

approved by the inspector

25
CR is calculated by
thinnest or an average of readings
26
Inspector must pass 510 &
may be a contractor acceptable to owner operator
27
When does the nameplate need additional stamping or signing by the engineer
NEVER
28
What MUST be in the vessel record
name plate
29
Vessels in parallel process may be considered similar if
they have analogous and readily recognised similarities
30
What inspections may be done on redundant vessels left in-situ
external visual inspection
31
Carbon steel with carbon content above .3% may be used in repairs if
it is marked as per code requirement
32
documentation oin file if service & location change
Process safety information
33
Limitation of stud arc welding
plain carbon & low alloy steels only
34
inspection organisation may belong to the owner and be authorised inspector if
its only inspecting its own equipment
35
Direct current MT yoke must be able to lift XX
40 Lbs
36
Bulging & buckling in a metallic lining indicated
a leak in lining or attachment welds
37
Most important factor in determining a components resistance to fatigue cracking?
Design