Pipe strain

Question 1

types of static load

Answer 1

weight
thermal
foundational

Question 2

types of dynamic load

Answer 2

vibration
wind
water hammer
slug flow
change of PSV

Question 3

pipe strain distortion can cause

Answer 3

bed warp
casing damage
mechanical seal failure
vibration

Question 4

rule for vibration frequency for support

greater stiffness = vibration

Answer 4

higher vibration

Question 5

flange joint tolerance

Answer 5

1/16

Question 6

flange bolt tolerance

Answer 6

1/8

Question 7

flange face tolerance

Answer 7

1/16

Question 8

dial placement for checking pipe strain

Answer 8

12 and 3

Question 9

gap between pipe and support to allow for shimming

Answer 9

1/4

Question 10

3 fittings to join pipe

Answer 10

orifice plate
bellow expansion
welded spool

Question 11

flame methods for correcting pipe strain

Answer 11

holt
line
spot

Question 12

flame bending for greatest amount of bending

Answer 12

holt method

Question 13

flame bending method for small amount of deflection

Answer 13

spot method

Question 14

3 steps for heat movement

Answer 14

pipe length
deflection
parallel

Question 15

abbreviation PSA

Answer 15

pipe stress anaylsis

Question 16

correct deflection pump to source or source to pump

Answer 16

pump to source

Question 17

ASME code for piping process

Answer 17

31.3

Question 18

ASME code for power piping

Answer 18

31.1

Question 19

stress result of internal or external pressures and is considered uniform across the piping

Answer 19

hoop or constant

Question 20

stress when both ends of the pipe are fixed. Pipe is not allowed to move thermally in either direction

Answer 20

axial or elongation

Question 21

stress applied to the piping by gravity, pipe weight, or piping hardware such as valve

Answer 21

bending

Question 22

stress caused by the continual cycling of pressure and temperature change

Answer 22

fatigue

Question 23

requirement for PSA

Answer 23

temperature exceeds 177 Celsius

or 66 Celsius on 4 inch diameter

Question 24

loads that PSA anaylize

Answer 24

hydrostatic
sustained
operating
expansion
occasional

Question 25

pipe fittings for axial movement

Answer 25

orifice plate, welded spool

Question 26

pipe fitting for temperature or pressure change

Answer 26

bellow expansion joint