UPS MECHANICAL CRAFT TEST
A pipe union has a flow direction
True
Baffle plates are the exchanger bundle component that is used to keep the tubes in place that are spaced evenly throughout the lenght of THE BUNDLE
True
Bundle straps should be aligned with the BAFFLE plates when rigging an exchanger bundle
True
If the tube sheet is not to thick, it is possible to roll a new gasket over the ....... to keep from pulling an exchanger bundle completely out.
True
One of the most common internal components used to slow the ........ is called a Demister Pad
True
If installing an exchanger head on a vertical or bellows type exchanger trhat has no line up marks, no baffle plate and the only pipping is what bolts to the end of the head and that piping is not installed, what should be done to achieve proper head alignment?
Determine the two hole of the coordinating piping and the two hole of the she...... and match the exchanger head bolting pattern accordingly
One of the main factors to consider when installing an orifice plate is:
Direction of Flow
What must a hydro test tree have built into it to be able to zero out a test gauge during a hydro test?
Double block and bleed
Which of the following is one of the details to look for on final make up of a flange before turning the flange over QC?
Evenly distributed bolt threads according to the spec with all stamped ends facing some accessible direction
If a large acetylene bottle cannot fit into the confined space, it is allowable to bring a smaller set of bottle inside the confined space.
False
If flanges are securely wedged open, it is okay to reach your hand and remove the gasket or any debris from inside the flange as long as you are wearing a glove.
False
If torquing a flange with a hydraulic torque pump, you should set the gauge to the actual foot pound numerical value that is designated for that size flange:
False
One of the correct and safest procedures for breaking a tight bolt is doulbe wrenching method.
False
When dissasembling an exchanger with a fixed head bundle, you should always remove the channel head before extracting the bundle
False
When installing bolts in a flange, the industry standard is to run your threads a minimum of halfway through the nut to gain full thread engagement
False
When rigging with a come-a-long, it is okay to hook up the chain back ....... as the load does not exceed the capacity of the come-a-long.
False
Which exchanger head is always absent on a U-Tube bundle?
Floating Head
Wha is the main factor you should determine before installing a check valve?
Flow Direction
What must be done before lifting a load over the side of a mobile crane?
Fully extend the outriggers
To properly install a exchanger head and make sure the gasket seats properly you should.
Glue Gasket to the proper gasket surface, where the gasket will catch ..... that gasket surface preventing it from rolling
What is applied to an exchanger gasket, when allowed by the plant, to m....seal to the gasket surfaces?
Graphoil tape
What is the quickest way to determine if an exchanger has a pull through floating he ....... clamp style floating head before dissasembly?
Look at the diameter of the shell vs. the diameter of the bell head to det......
When using air, helium, or nitrogen instead of water as test medium during a pressure test, will the issued test pressure be scientifically higher or lower?
Lower
Before breaking containment or opening a flange on a system that has not been worked, you should:
Make sure system is out of service, bleeders are open and free
When is one of the most important factors to consider before inserting a plug in an exchanger tube?
Matching the material of the plug to the tube material
To make sure a system will properly drain after a hydro test you should always...
Open the high point vent
The main reason for a PSV or RV to be installed on a vessel or in a system is to make sure that the vessel or system does not ________________-
Over Pressure
Before suitting up on supplied air and additional PPE to break open a flange you should fist
Prep flange by working all bolts one at a time and install new ones if necessary
Most plants require you to keep what type of valve stood upright thorugh shipping and installation?
RV or PSV
When dealing with any flange, the term "hot bolt" means:
Remove one bolt at a time, lubricate, and reinstall each one unless approved to remove a set amount of bolts
Before removing the channel head from an exchanger, you should
Remove support, or shim any piping that may shift when head is removed
When Water is leaking around the outside of a rolled exchanger tube during a hydro test this type of leak is called
Roll Leak
What is the proper way to install a shackle when setting up rigging for any type of lift?
Screw pin all the way, and the back off 1/2 turn and keep load from over tightening pin
Which is the better technique for cutting a large nut with a
Splitting the Nut
Name the two types of drums that are contained within a boiler.
Steam Drum, Mud Drum
Name each of the following basic hitch configurations:
Straight, Choke, Basket or Saddle
The method of ........ Leaking at the head's gakset surface is best described as:
Striking the head forcefully (with a hammer) ..... There is more in the picture...
During cold temperatures a system under a hydro test will DECREASE in pressure as time lapses
TRUE
When operation is not availabe to give you flow direction you can reference P&ID which will show the flow of process lines.
TRUE
When performing a hydro test, which factor has more of an effect on the fluctuation of the pressure?
Temperature
Circle the correct configuration for the term "dont saddle a dead horse"
The first Configuration is the correct one
Who gives the crane operator hand signals when performing a lift?
The person assigned prior to the lift
What is the hand signal to raise the boom of a mobile crane?
Thumb up, Clenched Fist
When the bonnet flange of a bolted bonnet valve is leaking, you should:
Tighten the bonnet bolts, starting at the leaking point, to stop leak
SOFTNERS should be out into place when chokers come into contact with sharp surfaces or edges
True
The Method of pulling a rigging out of an exchanger bundle without equipment is called a CONVENTIONAL pull
True
To perform an internal inspection of a tower, you will have to remove each int... MANWAY INSPECTION tray at every tray level.
True
What is the appropriate wrench size for each of these two flanges? 1-1/2" 300 = 1-1/4" 300 + 3" 150 = 1-1/16"
True
When blinding a flange with a figure 8 installed in the open position, you should Roll/Flip the figure 8 to reach the blinded position
True
When laying a load which has been rigged using two basket hitches down on the ground, it is advisable to block or crib up under the load so the slings can be removed with no effects from crushing.
True
While filling for a hydro test any vessel or piping it is.... AIR/AIR FLOW coming from your high point vent
True
You should check the FLOW of a process line to ensure the proper installation of a control valve
True
What is the name of the bundle component where all of the tubed are rolled and/or welded at the face of the bundle?
Tube Sheet
If you are blinding fin fan exchanger banks with common headers, it is best to.....
Unbolt and wedge open all flanges to each header at the same time
When "Rattling out" or tightnening a 36 bolt flange with an impact that does not......... torque, you should:
Use star pattern and then tighten each bolt around flange until impact is barely turning
Before pulling a hair pin exchanger you should
Verify that all head external rings, and most especially internal rings are removed
To check the "hi-low" of a flange, is to:
Visually check the flange edges for proper alignment
What is the best and most common technique used to center the tube shell gasket surface when prepping to spot a head?
Wedge Pencil wedges against a few bolts that are flush to tube sheet until tube sheet is centered
Circle the flange that will require the larger diameter stud bolt
1-1/2" 300
What is the correct wrench or nut size for a 1-1/8" diameter stud bolt?
1-13/16
The jib capacity is 8 tons and gthe ball weighs 900 lbs, what is the heaviest load that can be lifted safely?
15,100 lbs
If a spool piece has both a 150th and 300th flanges, which rating do you use to hydro test pressure
150#
A fin fan exchanger bank that has 150 tubes will have how many header plugs?
300
To accurately lay out a nozzle on a vessel, you should calculate the circumference measurement then divide that measurement by ___________ to find out your distance per degree
360
How many bolts should be initially tightened to ensure you have a square and solid make up on just about any size flange?
4
How many bolts need to be removed from a 12 bolt flange when installing gasket?
5
When pumping up a hydro test, and the test pressure is difficult to achieve, as ....... there are not leaks, what is the reason?
Air trapped inside of vessel
When cutting a stud bolt, which end of the bolt should be saved?
All of the above (Stamped, Stenciled, Marked)
Before installing a plug in an exchanger tube, you should ______________ the tube before continuing to prevent back pressure from building up against the plug.
All of the above (Vent, fly cut, puncture)
You should start at the gap of a loose flange to complete a solid and square bolt up.
All of the above (widest, biggest, largest)
When tightening a flange you should
Always use a star pattern
What should be used to assist a bundle extractor whiel pushing a bundle the final few feet and to make any final tweaks to rolling the bundle into place?
BOTH A & B
You should always break a flange ________________ to prevent any exposure.
BOTH A & B (Away, Down)
Name the exchanger head that bolts directly to the shell, and is the pressure containing head for the shell side.
BOTH A & B (Bell Head, Tub Head)
If thers is only one good gasket available to install with a blind during a hydro test, on which side of the blind shoud the gasket be installed?
BOTH A & D (Pressure side and Hydro side)
If working bolts out of a threaded bolt hole and the threads are bound up, you can....
BOTH A and B ( use a double nut on bolts to help back bolts out, brad threads behind nut and back out bolt )
Pyrophoric is a term used to describe something that will ______________ upon exposure to oxygen.
BOTH A and B (Combust, Ignite)
When blinding off a vessel of any type of entry, without a variance, each must be installed in what proximity to the vessel
BOTH A and C (Closest flange to the vessel, use the plot limit blinds)
Name the two most commonly used stud bolts used in the ......
BOTH A and D B7 & B16
By order of hitch strenght, which is the correct order (strongest to weakest)?
Basket, Vertical, Choke
What is the most proper way to rig up a hair pin exchanger bundle?
Both A & C (Use a two leg config. with a chocker weaved in a figure 8, Basket bundle with a two leg conf. and wood cribbing..... and bottom section of bundle)
What are the two different classifications of manways on towers?
Both A an B (Internal, External)
______________, hand tools shoud be used when breaking a flange with high LEL in that system, so you do not generate a spark
Brass
When working on an exchanger tube side hydro-test, the ____________________ best filling point.
Channel Head
You should first __________________ a spring before removing any piping or equipment
Chock