1. What is the primary purpose of Supports Selection in piping systems?

Choose the correct statement.

A) To restrict thermal expansion
B) To carry the weight of the piping system and prevent sagging
C) To control fluid flow forces
D) To limit external loads such as wind and earthquakes

Show Answer

Explanation: Supports in piping systems primarily serve to carry the weight of the piping system and prevent sagging and excessive stress.

2. What is the main function of restraints in Supports Selection in piping systems?

Choose the correct statement.

A) To carry the weight of the piping system
B) To restrict movement due to thermal expansion and contraction
C) To support fluid flow forces
D) To absorb external loads like wind and earthquakes

Show Answer

Explanation: Restraints in piping systems are designed to control or restrict the movement of the piping system, primarily due to thermal expansion and contraction.

3. How do supports help in reducing stress on a piping system?

Choose the correct statement.

A) By increasing thermal expansion
B) By limiting fluid flow forces
C) By carrying the weight of the piping system and distributing loads
D) By promoting excessive movement

Show Answer

Explanation: Supports help in reducing stress on a piping system by carrying the weight of the system and distributing loads, preventing sagging and excessive stress.

4. What is the primary reason for employing restraints in a piping system?

Choose the correct statement.

A) To carry the weight of the piping system
B) To control or restrict movement due to thermal expansion and contraction
C) To absorb fluid flow forces
D) To limit external loads like wind and earthquakes

Show Answer

Explanation: Restraints are employed in a piping system to control or restrict movement, primarily due to thermal expansion and contraction.

5. What factors influence the selection of supports and restraints in a piping system?

Choose the correct statement.

A) Only the anticipated weight or force
B) The size and configuration of the support or restraint
C) Availability of nearby structural steel
D) All of the above

Show Answer

Explanation: The selection of supports and restraints in a piping system depends on various factors, including the anticipated weight or force, size, and configuration, and the availability of nearby structural steel.

6. What does thermal expansion in a piping system lead to?

Choose the correct statement.

A) Increased stress
B) Reduced stress
C) No impact on stress
D) Increased fluid flow

Show Answer

Explanation: Thermal expansion in a piping system leads to increased stress, which can be detrimental if not controlled.

7. Why is it essential to permit vertical thermal movement at a support in some cases?

Choose the correct statement.

A) To increase lateral movement
B) To restrict all movement
C) To allow for vertical movement while restricting lateral movement
D) No specific consideration for movement

Show Answer

Explanation: In some cases, it is necessary to permit vertical thermal movement at a support while restricting lateral movement to accommodate the thermal expansion of the piping system.

Short Article on Factors for Support Selection

Purpose of Supports and Restraints in Piping Systems

Piping systems are subjected to various loads and forces during operation, including the weight of the pipe and its contents, thermal expansion and contraction, fluid flow forces, and external loads such as wind and earthquakes. To ensure the stability, safety, and integrity of the piping system, supports and restraints are employed to manage these loads and prevent excessive movement.

Supports

Supports primarily serve to carry the weight of the piping system and its contents, preventing sagging and excessive stress. They also help to distribute loads and reduce the overall stress on the piping system. Supports are typically attached directly to the pipe and can be of various types, such as pipe shoes, saddles, and hangers.

Restraints

Restraints, on the other hand, are designed to control or restrict the movement of the piping system, primarily due to thermal expansion and contraction. Thermal expansion occurs when the piping system is subjected to heat, causing it to expand, while thermal contraction occurs when the temperature drops, causing the pipe to contract. Uncontrolled thermal movement can lead to excessive stress, damage to connected equipment, and potential leaks. Restraints are typically attached to the pipe and connected to structural elements or other fixed points to limit or guide the movement.

Factors Influencing Support and Restraint Selection

The selection of specific supports and restraints for a piping system depends on various factors, including:

1. Load to be supported or absorbed: The load-bearing capacity of the support or restraint must be sufficient to handle the anticipated weight or force.
2. Clearance available for attachment to pipe: The size and configuration of the support or restraint must fit within the available space around the pipe.
3. Availability of nearby structural steel: Supports and restraints can often utilize existing structural supports, reducing installation costs and complexity.
4. Direction of loads to be absorbed or movement to be restrained: The orientation and design of the support or restraint must align with the direction of the load or movement to be controlled.
5. Design temperature: The material and design of the support or restraint must withstand the expected operating temperature range.
6. Need to permit vertical thermal movement at a support: In some cases, it may be necessary to allow for vertical thermal movement while restricting lateral movement. Specialized supports can accommodate this requirement.

By carefully considering these factors, engineers can select the appropriate supports and restraints for each piping system, ensuring its stability, safety, and long-term integrity.

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1. Complete Course on Piping Engineering
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