問題一覧
1
When placing flex pack packing what is the proper rotation
45 Degrees
2
How should bolts on a 8-bolt flange be tightened?
Cross over pattern
3
On site, Who determines what grade of material to be used for repair?
QC
4
Where are the blocks typically located on a drawing?
Lower right
5
When are steel chain slings recommended?
in high heat conditions
6
When plugging a straight tube exchanger in the shell all the heads need to be removed except the
Floating head
7
Where are football washers used?
Around internal manways
8
What is the typical method for locking newly installed tubesin a tube sheet?
Rolling
9
What does this hand sign mean?
Extend Boom
10
While pulling blinds on a 6”-150# line on a tower, what size wrench should be used?
1-1/4”
11
When off setting trays what is the proper rotation between tray level
90 Degrees
12
What does this hand sign mean?
Swing
13
How often must entry permits be updated during normalworking hours?
at the end of every shift change
14
An advantage of mechanical joint preparation compared to thermal beveling is that it is?
More precise
15
What do these hand signs do?
Stop crane
16
What information should always be on the side of a chain hoist?
Load Capacity
17
The purpose of a tie rod is to
Anchor baffles in place
18
What does the 70 stand for on the welding electro code e7018?
70,000 PSI tencil strength
19
What is the best method to identify water loss on a tube of an exchanger?
Wet Mag
20
How many bolts should be removed so that a 3-inch, 150# flange can be hot bolted?
None
21
Which of the following tubes is designed to vent a tube?
Two hole punch
22
. What do the intials nts stand for on a drawing ?
Not to scale
23
What is the first thing that a boiler maker should do before cutting into a tank or vessel?
Make sure proper permit has be obtained
24
Which of the following are shown on piping and instrumentation drawings
Valves
25
Taps are used to
Cut interior threads
26
What do castellated and slotted nuts use to prevent them from loosening
Coffer pins
27
Gaskets may be affected by all of the following except the
Number of bolts on flange
28
According to OSHA oxygen and acetylene cylinders in storage must be separated what minimum distance?
20 Ft
29
To help control a load install a
Tag line
30
Which of the following has a greater possibility of being a respiratory hazard?
Asbestos
31
How often should you inspect any type of riggingdevice
Before each use
32
What does this hand sign mean?
Raise Boom
33
How are stud bolts threaded
On both ends
34
Putting a sling into a chocker hitch reduces the sling capacity by approximately
25%
35
When plugginga U tube exchanger the only component that needs to be removed is the
Channel Head
36
What is the piece of equipment inside a tower that maintains the height of the liquid?
Weir
37
When tightening up a man way on a tower that has 1-1/4” X 8 studbolts, what size wrench should you use?
2”
38
The hitch made by wrapping the sling around the load, then passing the sling throught a shackle is called?
Choker hitch
39
Which organization writes the boiler and pressure vessel code
Asme
40
In a hydro static test of a vessel what is the most common test method?
Water
41
What does the threaded series symbol UNC stand for
Unified national course
42
All of the following are influenced by the typeof service for which the exchanger will be used except
Type of support being used
43
Chackles should never be side loaded unless approved by the
Manufacturer
44
Where is a vapor horn typically located?
Bottom of tower