Boiler study guide Word Scramble

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Question	Answer
When are steel chain slings recommended	when rigging from 3 points
a big control valve is pulled. who is responsible for the rigging	crane operator and rigger
what should be used to hold the pipe when setting up two 40-foot joints of 16-inch STD WT pipe	4 legged roller top jacks
the hitch made by wrapping the sling around the load, then passing one eye of the sling trough a shackle is called	choker hitch
when should rigging material be attached to a beam that is being demolished	before any bolts are removed or any cutting is done on the beam
which of the following has a greater possibility of being a respiratory hazard	asbestos
which type of insolation is required before a vessel is entered	locking, tagging, and blinging lines that feed the vessel
according to OSHA oxygen and acetyle cylinders in storage must be separated what minimum distance	20 feet
what is the first thing a boler maker should do before cutting into a tank or vessel	determine the content
scales on a drawing are usually written in	inches and feet
dimensional measurements can be found on all of the following except	mechanical flow diagram
all vessels elevations are taken from the	top of steel on the embed rings (base plate)
a gate valve is being removed from a product line. all of the following procedures must be performed except	valve must be in closed position
what is a spud wrench most commonly used for	aligning flanges
what type of valves are typically used on a s sight glass to direct flow	way valves
handhole cap and plug material is verified by the	P4 report
what are the four major components of a gate valve	body, bonnet, gate, and steam
what is the most commonly used fasteners in boiler construction	threaded
on site who determines what grade of material to be used for repair	QA/AC
what is the best tool to be used to "prepare" XXH2-INCH tubing for welding	milling motor
all of the following tools are used in preparation of the butt weld of a tube except	chipping gin
what preparations must be made for the spring can hangers of a section of a pipe before hydrotesting can be done	no preparation must be made
which of the following connecting units are used on pipe hangers	eye bolts, turnbuckels, threaded rods
which of the following materials may be used to safely secure scaffold boards to a platform	#9 tie wire
for high temperature service, one end of a stud should be	marked B16
How should bolts on an 8-bolt flange be tightened	in a cross-over pattern
what is the primary reason for high-point vents in hydrotesting	to purge air pockets
what are the most commonly used fasteners	threaded bolts
whey must spring cans be adjusted after they are put into service	because the lines become heavier when they are in service
variable spring-can supports should be used on what type of piping	piping that must be supported at all times during thermal expansion and contraction
which of the following fasteners is used on concrete	expansion anchor bolt
after installation of a variable pipe support, a boilermaker should verify the	proposed length of travel has no obstruction
how should tubes be attached in drum holes	rolled
which of the following is most important when fitting up thick wall boiler tubing	the inside diameter must match up
what should be used to plug a tube at either end of a well to prevent air circulation	purge pager
what should be done before furnace fittings for tube replacements are ground	the inside of the fitting should be inspected
a reboiler in a tower is being hydrotested. the water should be at what level	above the reboiler
what is the preferred socket for tray work	12 point
how many types of bubble caps are there	6
why does a boilermaker use a test tree that has a bleed valve when hydrotesting an exchanger	so tht the pump can be disconnected
what determines the type of bolts to be put back in an exchanger so that it can be bolted back together	the service of the exchanger
what type of exchanger needs only one end open for plugging tubes	harpin
the tube-to-tube sheet joint achieved by mechanical or explosive expansion of the tube hole in the tube sheet is the	expansion joint "J" factor
what type of tank has legs on the roof	floating roof
what information is required to locate a nozzle that will be installed on a vessel shell	the elevation and degree of the centerline of the nozzle
the variable spring on a sring-type hanger should be adjusted to what position before the pipeline is put into service	cold
all of the following, are possible reasons for a spring can over-loadin except	incorrect orientation of the support
what problems are associated with tube rolling	improper expanding and depth
why is a monel gasket used in HF acid piping	because of its high resistance to acid
which of the following is required when test blinds are installed	longer bolts
which of the following are used to prevent tubes from sagging because of weight	baffles
what is the area of a concrete slab that is 25 feet 6 inches long and 10 feet wide	255 square feet
which gas passes through the center in a cutting torch tip	oxygen
add the following fractions and reduce to the lowest common denominator (24 5/8 + 13 15/16 +8 1/4)	46 13/16
on a blueprint, 1/4"=1' means	1 inch on the drawing equals 1 foot of actual size
a major component of a tower is a	downcomer
what is indicated by the notation "3-inch, 150#" on a isometric drawing	3-inch diameter, 150# flange
what is the preferred type of rigging material used to lift coated pipe	nylon slings/straps
the best source for information about welding on a tube is the	QA/QC
equal-width grating panels are being unloaded on the job site. one piece measures 4 1/2 ft in width. there are 7 panels. what is the total width when all the panels are laid side by side	31 1/2
what is the demister pad used for	filtering chemical/vapors
who is responsible for blocking valves that isolate a reboiler before work is begun	operations
the channel head cover on an exchanger is used on the	tube side
what type of steel beams are attached to the furnace wall with clips to contain a boilers horizontal expansion	buckstays
who determines the size and type of sring can to be used	engineer
how many bolts must be removed so that a 3-inch, 150# flange can be hot bolted	0
how often must entry permits be updated during normal working hours	at the end of each shift change
all of the following would be reasons for rejecting a synthetic sling for rigging except	an identification tag on the wrong side of the sling
tube expanding is a method of	connecting
why should a full port valve be used for a corrosion probe	so the probe will not corrode the valve
what is "back gouging"	removing metal from the other side of a welded joint
what type of purge must be maintained when a catalyst is removed from a reactor	nitrogen
where should the shell side gasket on the new tube bundle be installed	over the floating head end of the tube bundle, before the bundle is put back in the exchanger
chain hoist are primarily designed for what type of lifting	vertical lifting
what type of valve is used on a hydro test tee to maintain test pressure after the hydro has reached its required pressure	check
if the sling angle decreases, sling stress	increases
what substance is resistant to oil and solvent but has poor resistance to chemical	neoprene
a reboiler in a tower is being hydrotested. the water should be at what level	above the reboiler
what type of drawing shows the precise dimensions of a section or part of the larger plan	scale
a worker is installing a blind in a flange for blanking off the gas line to the burners. the appropriate gasket cannot be found. what should the worker do	do not continue installing the blind until the proper gasket is located
what is the most commonly used light lifting device	chain hoist
why should a boilermaker "crack" the cylinder valve before connecting the regulator to the oxyacetylene cylinder	to clean the cylinder valve of foreign matter
what is one way to permanently support a pipe in a pipe rack	with shoes
which type of drawing would normally be used to fabricate a spooled piece of pipe	isometric
which row of fractions is in the correct numerical order	1/8, 3/16, 1/4, 5/16, 3/8, 7/16
what is the typical procedure to install tubes in a steam drum	tig welding
what must be locked out before a tube can be removed safely from the reboiler	feed water pumps
how many people can tie-off to a vertical lifeline	a maximum of two people
what is the name of the heated interior of the boiler	fire box
the maximum fillet size on a tube to drum seal welds should be	3/8 inch
what is meant by "overheating" a metal with an oxyacetylene torch	heating to a temperature that imapairs the metal
thermocouples are used for	indicating the temperature of the metal to which is attached
what size generating tube stock is permitted inside the steam and mud drum of a boiler	1 1/2 to 2 inch
what are the first two blinds turned on a tower being taken out of service	inlet and outlet
what tubes run vertically in a furnace	rediant
on an open root weld on plate, the combined grooved angle of the bevled	30 degrees
what is meant by the letters "RFWN"	Raised Face Weld Neck
a boiler maker is installing trays in a tower. where should the weird plates be installed	between the trays
where is the convection section of a heater located	above the radiant tubes
a leak in a fin fan is being repaired while hydrtesting is being conducted on a piping system. what should be done during the repair	pressure should be relieved before any tightening is started
the channel head cover on an exchanger is used on the	tube side
where is the demister pad usually located	top of tower
what can be used in place of a shackle pin	nothing
what are the 3 types of basic hitches	vertical, choker, basket
what are lifting lugs	rigging material used to clamp onto surfaces such as shell plates or sheet metal
what is the primary purpose of a P&ID	provides scale drawings of piping and instrumentation control systems
eye bolts, anchor bolts, and self taping bolts are all types of	fasteners
how much is 3 inches in hundredths of a foot	0.35
how is a plate dog used	it buffers to align vertical plates at the weld
why are there ball checks on sight glass valves	to stop the flow if there are leaks or if the sight glass breaks
what type of gasket is usually used when a steam service drum is blinded	garloc
pack beds are bound in all of the following location except in	furnaces
the length of a rectangle is 8 feet 6 inches and the width is 4 feet 7 inches, what is the perimeter	26 feet 2 inches
what is the proper way to attach two slings together	use a shackle
what is a "Rosebud" normally used for	heating metal
which of the following characteristics of a gasket must be checked before the casket is installed in a flange	material
how should a boiler maker determine the proper size gasket to install in a set of flanges	check the size and rating stamped on the flanges
wht type of gasket is normally used on a flange valve in a high-pressure/high temperature line	flexitallic spiral wound
a boiler maker who is hydrotaticaly testing an exchanger should have which of the following information	the correct test pressure
when an exchanger is blinded, spaces are used	to space open the exchanger side for steaming or nitrogen purge
when an exchanger tube is plugged, whey is the tube cut before the second plug is installed	to prevent pressure build up
when performing a welding repair, you must have a copy of what on hand	the quality assurance manual
rigging is to be done with wire sling over a steel beam. when is a softener required	at all times
where can the pass partition of an exchanger be found	on the channel head
a reinforcement pad is used on the shell of a vessel to	strengthen nozles and manways
what tool is typically used to remove hole caps from a stainless steel header	ARC gouger
where is the exchanger blinded during a tubeside pressure test	on the channel head flanges
what is the value of "Pi"	3.142
what is the sum of 3 7/8 + 2 5/8 + 3/16	6.375
what is the difference in elevation between a point at 14 feet 1/8 inch and a point at 11 feet 1 3/4 inches	2 feet 10 3/8 inches
the most commonly used wrench size for tray work is	9/16 inch
what minimum number of bolts must be removed when an 8 inch 300# slip blind is blinded	5
what information is found on the exchanger nameplate	exchanger operating pressure
what component must be removed before a u-tube bundle can be removed	channel head
a boiler maker is hydro testing an exchanger and finds that a tube is leaking, what should the boiler maker use to stop the leak	plugs
what wrench size is required to tighten a nut on a 7/8 inch heavy hex head bolt in a flange	1 7/16 inches
a boiler maker must have all of the following when working inside a vessel except	a flange spreader
a pipe will be lifted with wire rope slings, which of the following techniques should be used	use a double wrap on the choker to prevent the choker from sliding on the pipe
what should be used to secure a socket to an impact wrench	retainer rings
a pressure differential hydro test on an exchanger is one	that is different when fire water is used on the shell and a hydro pump is used on the tubes
what is the total length of 4 1/16 inches, 5 1/8 inches, 2 3/4 inches, and 7 3/8 inches	19 5/16 inches
1ft 3 3/4 in + 2ft 1 1/16 in + 5ft 10 7/8 in	9ft 3 11/16 in
a cylindrical tank is 10 ft high and 7 ft in diameter, what is the approximate volume of the tank	385.0 cubic feet
what tool is used to stop leaks on the tube sheet of exchangers	rolling motor

Created by: ecdumes23