Piping Piping Supports and Hangers 2

Question 1

What is a 'constant support hanger' designed to maintain?

Accepted Answer

A constant supporting force throughout the pipe's range of vertical travel

Answer

Constant pipe temperature

Answer

Constant fluid pressure in the pipe

Answer

Constant spacing between supports

Question 2

A pipe guide support differs from a pipe anchor in that a guide:

Accepted Answer

Allows axial movement but restricts lateral movement

Answer

Restricts all movement

Answer

Only supports vertical loads with no lateral restraint

Answer

Is used exclusively on underground piping

Question 3

According to ASME B31.3, when calculating maximum span between supports for liquid-filled process piping, the designer must consider:

Accepted Answer

Both the pipe weight and the weight of fluid, insulation, and allowable sag

Answer

Only the weight of the empty pipe

Answer

Only the internal pressure rating

Answer

Only the thermal expansion forces

Question 4

What is a 'snubber' used for in piping systems?

Accepted Answer

To restrain dynamic loads such as seismic or water hammer while allowing slow thermal movement

Answer

To reduce noise from flowing fluid

Answer

To insulate the pipe from structural steel

Answer

To increase the support span

Question 5

Which MSS SP standard specifically covers the selection and application of pipe hangers?

Accepted Answer

MSS SP-69

Answer

MSS SP-58

Answer

MSS SP-75

Answer

MSS SP-44

Question 6

When a pipe support must be placed on a structure that also experiences vibration, the preferred support type is:

Accepted Answer

A vibration isolation hanger with elastomeric elements

Answer

A rigid rod hanger

Answer

A variable spring hanger

Answer

A clevis hanger without any dampening

Question 7

The 'hot load' of a spring hanger is defined as the load carried by the hanger:

Accepted Answer

At the operating (hot) temperature of the system

Answer

During a hydrostatic pressure test

Answer

During summer ambient conditions

Answer

When the system is shut down