B.m. R.e.c.c.n.

192 Questions  I  By Freedomfighter
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1.   The channel head cover on an exchanger is used on the__________
A.
B.
C.
D.
2.       Who is responsible for housekeeping?
A.
B.
C.
D.
3.      Where is a demister pad usually located?
A.
B.
C.
D.
4.     What is the standard hydro-test pressure after a routine boiler repair?
A.
B.
C.
D.
5.  1.       All of the following are parts of a tower EXCEPT
A.
B.
C.
D.
6.  1.       When may guards and other safety devices be removed from equipment?
A.
B.
C.
D.
7.  1.       What does “3-inch G.A.V.A.” on a piping isometric mean?
A.
B.
C.
D.
8.  1.       What indicates the direction of flow on a check valve?
A.
B.
C.
D.
9.  1.       What types of valves are typically used on a sight glass to direct flow?
A.
B.
C.
D.
10.  1.       Why are metal tags installed on 90-degree turns on reactors?
A.
B.
C.
D.
11.  1.       Why is a Monel gasket used in HF acid piping?
A.
B.
C.
D.
12.  1.       Dampers are used on the PRIMARY air ports to control the__________
A.
B.
C.
D.
13.  1.       What should be verified before a wall burner is pulled for inspection?
A.
B.
C.
D.
14.  1.       A 1-inch plate is to be cut.  Why should an acetylene regulator on a cutting rig NOT be adjusted over, 15 psi?
A.
B.
C.
D.
15.  1.       When a tube “Dutchman” is used, what size gap should be left between the “Dutchman” and the tube?
A.
B.
C.
D.
16.  1.       Pipe stamped with the Code 316L or 304L denotes what type or grade of piping and fittings?
A.
B.
C.
D.
17.  1.       What is indicated by the notation “3-inch, 150#” on an isometric drawing?
A.
B.
C.
D.
18.  1.       What is the volume of a rectangular electrical box if the with is 3 ¼ inches, the length is 4 ½, and the depth is 1 ¾ inches?
A.
B.
C.
D.
19.   What is the pressure differential hydro-test on an exchanger?
A.
B.
C.
D.
20.  What is a “dummy leg” used for?
A.
B.
C.
D.
21.  A hand-hole plug is removed.  How should the hole be repaired?
A.
B.
C.
D.
22.  All of the following are major components of a tower EXCEPT?
A.
B.
C.
D.
23.  What do the letters “WOL” on a blueprint stand for?
A.
B.
C.
D.
24.  What should be used to put screwed fittings together for a steam process?
A.
B.
C.
D.
25.  A right triangle has three angles that add up to 180 degrees.  What are the sizes of each of each of the three angles?
A.
B.
C.
D.
26.  What are spacers used for when an exchanger is blinded?  
A.
B.
C.
D.
27.   Eye bolts, anchor bolts, and self-tapping bolts ate all types of__________  
A.
B.
C.
D.
28.  How much is 3-inches in hundredths of a foot?  
A.
B.
C.
D.
29.  Why does an operator rod-out a drain valve?  
A.
B.
C.
D.
30.  Typically, what is the hydro-test pressure of an exchanger with an operating pressure of 400 psi?  
A.
B.
C.
D.
31.  What power source is used to run a tugger?  
A.
B.
C.
D.
32.  What holds the trays to the rings in a tower?  
A.
B.
C.
D.
33.  1.       What grade number is found on the bolts on a reactor that operates at high temperatures? a.       L-5 b.       A-35 c.        B-16 d.       B-7
A.
B.
C.
D.
34.   Which of the following items are used for heavy rigging?
A.
B.
C.
D.
35.  What does a grooved nut on an oxyacetylene rig indicate?  
A.
B.
C.
D.
36.   What are thermocouples used for?  
A.
B.
C.
D.
37.   Which gas passes through the center in a cutting torch tip?  
A.
B.
C.
D.
38.   What should be done before furnace fittings for tube replacements are grounded?  
A.
B.
C.
D.
39.  1.       What should be used on the bolts of a reactor that operates at high temperatures? a.       Heavy-oil b.       Teflon c.        Nickel anti-seize d.       WD-40
A.
B.
C.
D.
40.  What determines the type of bolts to be put back in an exchanger so that it can be bolted back together?  
A.
B.
C.
D.
41.  What type of diagram provides and overall view of the operational aspects of a process system?  
A.
B.
C.
D.
42.  What is the basic formula for determining the CORRECT wrench size, per stud size?  
A.
B.
C.
D.
43.  What is a hammer wrench commonly used for?  
A.
B.
C.
D.
44.  What is the standard hand signal used to instruct a crane operator to lower a load?
A.
B.
C.
D.
45.  What information MUST a boilermaker know before blinding a tower?  
A.
B.
C.
D.
46.  What should a boilermaker do first when preparing for the evacuation of a reactor?  
A.
B.
C.
D.
47.  1.       Elevation adjustments on the pipe hanger should be made at which point?
A.
B.
C.
D.
48.  What should a boilermaker do to verify hydro-test pressure for exchangers?  
A.
B.
C.
D.
49.  When performing a welding repair, you MUST have a copy of what on hand?  
A.
B.
C.
D.
50.  If the hook is loaded off-center, the safe working load is__________  
A.
B.
C.
D.
51.  Rigging is to be done with a wire choker over a beam.  When is a softener REQUIRED?  
A.
B.
C.
D.
52.  Why are there ball checks on sight-glass valves?  
A.
B.
C.
D.
53.  MOST spring cans are made of what material?  
A.
B.
C.
D.
54.  What type of power tools should be selected for use in a no-spark producing areas?  
A.
B.
C.
D.
55.  What problems are associated with tube rolling?  
A.
B.
C.
D.
56.  After blinding, what should a worker do before removing any flange bolts on the exchanger channel head?  
A.
B.
C.
D.
57.  What should be used to plug a tube at either end of a weld to prevent air circulation?  
A.
B.
C.
D.
58.  The decimal equivalent of 56 inches is__________  
A.
B.
C.
D.
59.  How are tapered plugs installed in the ends of a leaking tube in a typical exchange-tubing bundle?  
A.
B.
C.
D.
60.  Why should an extra-thick blind be used for hydro-testing?  
A.
B.
C.
D.
61.  A reinforcement pad is used on the shell of a vessel to__________  
A.
B.
C.
D.
62.  A crane is being used to remove a valve from a run of pipe.  When should the rigging material be attached to the valve?  
A.
B.
C.
D.
63.  Which type of flange REQUIRES a full-face gasket?  
A.
B.
C.
D.
64.  Hoist or load attachment chains, wire rope slings and kooks should be visually inspected?  
A.
B.
C.
D.
65.  What type of gasket is usually used when a steam service drum is blinded?  
A.
B.
C.
D.
66.  All of the following are parts of an exchanger EXCEPT?  
A.
B.
C.
D.
67.  Who should a boilermaker consult about the correct hydro-test pressure on a piece of equipment?  
A.
B.
C.
D.
68.  What size Flex italic gasket should be used on a 6-inch, 400# flange on an exchanger?  
A.
B.
C.
D.
69.  Which of the following is a hazard of working with Kaowool insulation in furnaces?  
A.
B.
C.
D.
70.  The acetylene pressure at the bottle of an oxy-acetylene cutting torch exceeds 15psi.  What might be the result?  
A.
B.
C.
D.
71.  What materials should be used to secure a socket to an impact wrench?  
A.
B.
C.
D.
72.  All the items listed below are the MOST common methods of determining pipe lengths EXCEPT  
A.
B.
C.
D.
73.  What is the MOST commonly used light-lifting device?  
A.
B.
C.
D.
74.  What is the first thing a worker should do during a chemical release evacuation?  
A.
B.
C.
D.
75.  Why is stainless steel used for corrosive-type service?  
A.
B.
C.
D.
76.  How should a packing gland on a gate valve be tightened down?  
A.
B.
C.
D.
77.  Tubes in a furnace can be made of all of the following materials EXCEPT  
A.
B.
C.
D.
78.  What substance has a low resistance to solvent and oil?  
A.
B.
C.
D.
79.  What size wrench should be used to blind an 8-inch, 150# flange?  
A.
B.
C.
D.
80.  Which one of the signals instructs the crane operator to "lower the load slowly"?
A.
B.
C.
D.
81.  Why are lock-out/tag-out(s) used on valves, switches, and equipment?  
A.
B.
C.
D.
82.  Which fitting changes the centerline of a pipe system?  
A.
B.
C.
D.
83.  Trays are installed in a tower.  Why the internal man-ways are temporarily left out?  
A.
B.
C.
D.
84.  Why should an extra thick blind be used when hydro-testing?  
A.
B.
C.
D.
85.  What is another name for a wedge socket?  
A.
B.
C.
D.
86.  What letter represents the tub (bell) head?  
A.
B.
C.
D.
87.  When an exchanger tube is plugged, why is the tube cut before the second plug is installed?  
A.
B.
C.
D.
88.  Where would a rim plate be found?  
A.
B.
C.
D.
89.  Why should a full port valve be used for a corrosion probe?  
A.
B.
C.
D.
90.  How should spring can hangers be prepared prior to hydro-testing?  
A.
B.
C.
D.
91.  What does “MWT” mean in reference to boiler tubing?  
A.
B.
C.
D.
1 comment
92.   How often MUST wire chokers be inspected?  
A.
B.
C.
D.
93.  What does “B.O.P.” stand for?  
A.
B.
C.
D.
94.  The MOST commonly used wrench size for tray work is__________  
A.
B.
C.
D.
95.  The welding reference line is ALWAYS read from__________
A.
B.
C.
D.
96.  What protects the Kaowool insulation on the inside of radiant section walls?  
A.
B.
C.
D.
97.  What is the difference between a 300# flange and a 150# flange?  
A.
B.
C.
D.
98.  A boilermaker removes radiant tubes from a furnace before making any cuts on the top or bottom of the furnace.  What should the boilermaker do next?  
A.
B.
C.
D.
99.   What size bolts are used in a 4”-150# flange?  
A.
B.
C.
D.
100.  And a 3”-300# flange?  
A.
B.
C.
D.
101.  What factor determines the degree a tray can be pre-assembled before installation into the tower?
A.
B.
C.
D.
102.  What wrench size is used to tighten the nut on a 7/8 inch stud bolt?  
A.
B.
C.
D.
103.  What is the proper way to break out a flange?  
A.
B.
C.
D.
104.   How many pipe wrenches are used to break a union?  
A.
B.
C.
D.
105.  How many degrees are there in a tower that is 5-ft in diameter?  
A.
B.
C.
D.
106.  Which of the following is not a tray?  
A.
B.
C.
D.
107.  When installing a distributor, what must you check to assure it fuctions properly?
A.
B.
C.
D.
108.  What tool is best used to remove tower internal attachments?  
A.
B.
C.
D.
109.  All tray towers have only one internal man-way per tray?  
A.
B.
110.  When laying out for the installation of a nozzle, where can your measurement are verified from when available?  
A.
B.
C.
D.
111.   Before rigging a load to be lifted, what do you need first?  
A.
B.
C.
D.
112.  If a nylon sling is frayed on just one edge, what can you do with it?  
A.
B.
C.
D.
113.  Before lifting a load, what should you attach to it?  
A.
B.
C.
D.
114.   When lifting a load over-head, you should not interrupt the people working below? a.       True b.       False
A.
B.
115.  Which atmospheric conditions can make it difficult to properly level support bars when re-traying a tower?  
A.
B.
C.
D.
116.  Why are lock-out/tag-out used on valves, switches, and equipment?
A.
B.
C.
D.
117.  What do operators use to manually check the level on equipment?
A.
B.
C.
D.
118.  What is the purpose of the weirs in a tower?  
A.
B.
C.
D.
119.  Why does an operator rod-out a bleed valve?  
A.
B.
C.
D.
120.  Tubes in a furnace can be made of all the following materials EXCEPT  
A.
B.
C.
D.
121.  What is put on flange bolts before they are put back into the flange on a heat exchanger?  
A.
B.
C.
D.
122.  Which of the following tools are usually used to install trays in towers?  
A.
B.
C.
D.
123.  What is a hammer wrench commonly used for/  
A.
B.
C.
D.
124.  What is meant by the phrase “flush-nut”  
A.
B.
C.
D.
125.  What type of gasket is normally used on flange valve in a high pressure/high temperature line?  
A.
B.
C.
D.
126.  How should a boilermaker determine the proper size gasket to install in a set of flanges?  
A.
B.
C.
D.
127.  A boilermaker is blinding with spacers.  Where should the spacers be placed?  
A.
B.
C.
D.
128.  What protects the Kawool insulation on the inside of radiant section walls?  
A.
B.
C.
D.
129.  1.       Demister pads can be found in which of the following locations? a.       Towers, drums, vessels b.       Exchangers, towers, boilers c.        Exchangers, vessels, drums d.       Control valves, gate valves, butterfly valves
A.
B.
C.
D.
130.  What do the letters T.O.E. stand for?  
A.
B.
C.
D.
131.  What procedure does not need to be performed before a boilermaker enters a vessel?  
A.
B.
C.
D.
132.  Which of the following characteristics of a gasket must be checked before the gasket is installed in a flange?  
A.
B.
C.
D.
133.  1.       What are hydro-cups used to test? a.       Boiler systems b.       Single tubes c.        Tig rigs d.       Gas systems
A.
B.
C.
D.
134.  How are air blowers that provide ventilation to a crew working in a tower normally set up?
A.
B.
C.
D.
135.  What should be inspected before bundles are installed in an exchanger shell?  
A.
B.
C.
D.
136.  Why do steam systems incorporate low point drains and traps?  
A.
B.
C.
D.
137.  Which of the following is a hazard of working with a Kawool insulation in furnaces?  
A.
B.
C.
D.
138.  Any welding that is done on a reactor must be done by whom?  
A.
B.
C.
D.
139.  Most spring cans are made of what material?  
A.
B.
C.
D.
140.  MSDS sheets and HAZCOM information are required to be kept on site in what location?  
A.
B.
C.
D.
141.  What should a boilermaker do before performing a hydrostatic test?  
A.
B.
C.
D.
142.  Which of the following connecting units are used on pipe hangers?  
A.
B.
C.
D.
143.  A reactor is to be filled with catalyst.  What man-way must be installed first?  
A.
B.
C.
D.
144.  When should spring cans be adjusted?  
A.
B.
C.
D.
145.  A furnace tube is being replaced.  The tubes should be sealed back with what MINIMUM distance?  
A.
B.
C.
D.
146.  All of the following are major components of a tower EXCEPT  
A.
B.
C.
D.
147.  What are banana wedges used for?  
A.
<
B.