FP SF/PF Tools, Equipment and Material

Tools, Equipment and Materials

It is dangerous to use chisels that have

Mushroomed heads because they can shatter and cause injury.

A cold chisel that has a mushroomed head can be reclaimed by

Grinding to the original shaft size

File handles should be on files because

they provide a secure grip and prevent injury.

A split hammer handle is best repaired by

removing and replacing it.

State the formula to calculate the centre to face measurement for a 90 Deg. long radius butt weld elbow

1 ½ x NPS

State the formula to calculate the centre to face measurement for a 45 Deg. long radius butt weld elbow

5/8 x NPS

State the formula to calculate the centre to face measurement for a 90 Deg. short radius butt weld elbow

1 x NPS

Do all unions require a gasket to ensure a proper seal?

No

For a 6” x 6” x 3” std. butt weld tee, what does the 3” tell you?

The branch outlet is 3” NPS

A class 6000# forged steel threaded coupling is taken to be the equivalent to a steel pipe classification of and a class 6000# forged steel socket weld coupling to be the equivalent to a steel pipe classification of

XXS and 160sch.

List the accepted procedure for making a butt weld joint

1. Measure

2. Mark

3. Cut

4. Ream

5. Bevel

6. Fit up

7. Tack

What would you use a wraparound for?

A wraparound is used to mark the cut path to be followed around the pipe.

When should a gap rod be removed from a butt weld?

After the second tack

What recommended bevel angle should be ground onto the flat end of a pipe?

37.5 Deg.

A socket weld fitting has two weld locations: one inside and one outside.

False

What is another name for a Van Stone Flange

A lap joint flange

You would find a screwed companion flange on a 8”(200mm), 900 psi flanged joint.

False; a companion flange 12” and under are rated for 125psi steam and 175psi WOG.

A 600# RFWNF has a face that is raised:

1/4”(6.35 mm)

What is the best sealing surface for corrosive and high temperature/pressure flanged joints?

A ring joint flange(RTJ).

Cast iron flanges are commonly available in pressure ratings of and

125# and 250#

What are the three categories of gaskets?

1. Full face.

2. Flat ring.

3. Metallic ring.

Which two tools are required to make a gasket using the trace and tap method?

1. A soft face hammer.

2. A ball pein hammer.

What method of gasket cutting would you use if you only had a gasket cutter?

Layout and cut method.

The maximum temperature stated for asbestos compound gasket is deg. Celsius and deg. Celsius for Teflon gaskets

500 Deg. C and 260 Deg. C.

Why are ring cut gaskets preferred to full-face flange gaskets?

Ring cut gaskets require smaller torque loads to achieve a leak-tight joint.

What should be applied to one or both surfaces of a gasket to ensure easy removal at a later date?

Graphite or other non stick compounds.

During long term storage how should gaskets be kept or stored?

In a cool dry location, laid flat not hung.

How are flange bolts to be tightened?(pattern)

criss-cross or star pattern.

Which part of a hydraulic bolt tensioner threads onto the end of the stud to create the tension?

Puller.

If a force of 100 lb is applied on a torque wrench at a distance of 3 feet from the centre of the stud, how much torque is being applied?

300 ft-lb.

What is the name of the device used to get an accurate measurement of how much a fastener elongates as tension is applied?

Ultrasonic extensometer.

Guards on bench grinders should cover

2/3 of the wheel.

The gap between the tool rest and the grindstone on a bench grinder should never be more than

3 mm(1/8”)

A grinding wheel is classified by

its grit size and bond type.

A safety specification to consider when selecting a grinding stone or disc is

The rpm rating of the stone or disc