B2 Flashcards by Lino Janay Jr.

What is the primary objective of piping system design?
A) Reducing costs
B) Ensuring pressure integrity over its design life
C) Maximizing pipe length
D) Increasing fluid velocity

Ensuring pressure integrity over its design life

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Which of the following is NOT a major discipline involved in piping system design?
A) Fluid mechanics
B) Thermodynamics
C) Strength of materials
D) Biology

Biology

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What does the term ‘design bases’ include?
A) Only physical attributes of piping systems
B) Environmental factors and loading conditions
C) The cost of installation
D) Marketing strategies

Environmental factors and loading conditions

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Why are dimensional standards important in piping design?
A) They ensure all pipes look identical
B) They help in manufacturing pipes with accurate sizes and configurations
C) They increase fluid flow
D) They reduce the weight of pipes

They help in manufacturing pipes with accurate sizes and configurations

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Which of the following is a key environmental factor affecting piping systems?
A) Noise pollution
B) Erosion-corrosion
C) Soil composition
D) Fluid density

Erosion-corrosion

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What are loading conditions in piping system design?
A) Changes in pipe color
B) Forces and stresses acting on the piping system
C) Temperature of the external environment
D) The cost of materials

Forces and stresses acting on the piping system

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Which type of load occurs continuously during system operation?
A) Occasional loads
B) Deadweight loads
C) Seismic loads
D) Wind loads

Deadweight loads

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What is the main concern in pressure integrity?
A) Aesthetic appearance
B) Leak-tight condition
C) Pipe color
D) Pipe material cost

Leak-tight condition

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Which of the following is a materials-related consideration in piping design?
A) Wind speed
B) Metallurgical properties
C) Paint type
D) Pipe length

Metallurgical properties

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Which joint type is most commonly used in large industrial piping systems?
A) Threaded joints
B) Butt-welded joints
C) Compression joints
D) Grooved joints

Butt-welded joints

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What is the primary function of flanged joints?
A) Increase pressure
B) Easy assembly and disassembly
C) Reduce temperature
D) Prevent leaks completely

Easy assembly and disassembly

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Which type of piping system is most susceptible to erosion-corrosion?
A) Plastic piping
B) Wet-steam systems
C) Copper piping
D) Gas pipelines

Wet-steam systems

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What is the purpose of pipe wall thickness determination?
A) To increase aesthetic appeal
B) To ensure pressure integrity
C) To decrease pipe weight
D) To reduce construction costs

To ensure pressure integrity

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What is a primary cause of water hammer in piping systems?
A) Corrosion
B) Abrupt fluid flow changes
C) Pipe length
D) High temperatures

Abrupt fluid flow changes

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What is the major factor in determining the selection of piping materials?
A) Cost only
B) Chemical compatibility with the fluid
C) The color of the pipe
D) The diameter of the pipe

Chemical compatibility with the fluid

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Which factor affects the structural integrity of a piping system the most?
A) Material selection
B) Color of the pipes
C) Number of bends
D) Location of valves

Material selection

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What is the effect of thermal expansion on piping systems?
A) Reduces pipe length
B) Can cause pipe stress and movement
C) Eliminates corrosion
D) Makes pipes stronger

Can cause pipe stress and movement

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What does the ASME pressure classification system define?
A) Minimum required pipe thickness
B) Predetermined pressure-temperature ratings
C) The weight of piping materials
D) Corrosion rates of different metals

Predetermined pressure-temperature ratings

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Which component is NOT typically considered in piping system deadweight?
A) Pipe itself
B) Fluid inside the pipe
C) External wind pressure
D) Thermal insulation

External wind pressure

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What is the main disadvantage of flanged joints?
A) Difficult to assemble
B) Prone to leakage due to temperature fluctuations
C) Weak structural strength
D) Limited size availability

Prone to leakage due to temperature fluctuations

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Which load type acts temporarily and is not sustained throughout system operation?
A) Deadweight load
B) Occasional load
C) Pressure load
D) Static load

Occasional load

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What is the primary cause of erosion in piping systems?
A) High pressure
B) Abrasion due to particles in the fluid
C) Low temperature
D) Pipe thickness

Abrasion due to particles in the fluid

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How does thermal expansion affect a piping system?
A) Reduces the need for supports
B) Causes stress and movement in the system
C) Eliminates material fatigue
D) Decreases fluid temperature

Causes stress and movement in the system

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Which of the following is NOT a method for controlling erosion-corrosion?
A) Using corrosion-resistant materials
B) Reducing flow velocity
C) Increasing sharp bends in piping
D) Applying protective coatings

Increasing sharp bends in piping

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What is the primary concern of seismic loads in piping systems? A) Preventing thermal expansion B) Ensuring structural integrity during earthquakes C) Increasing pipe wall thickness D) Reducing insulation weight

Ensuring structural integrity during earthquakes

Which type of joint is commonly used in refrigeration piping? A) Threaded joints B) Brazed joints C) Compression joints D) Flanged joints

Brazed joints

Why is corrosion a significant factor in piping design? A) It weakens the material over time B) It makes pipes stronger C) It only affects external surfaces D) It improves pressure resistance

It weakens the material over time

What is the primary reason for using thicker pipe walls in high-pressure systems? A) Aesthetic appeal B) Increased pressure integrity C) Reducing cost D) Decreasing insulation requirements

Increased pressure integrity

What is the main disadvantage of threaded joints? A) High cost B) Susceptibility to vibration-induced fatigue failures C) Difficult installation D) Low availability

Susceptibility to vibration-induced fatigue failures

What is the function of a compression joint? A) Provide a leak-tight seal without welding B) Reduce pressure C) Increase pipe flexibility D) Improve structural strength

Provide a leak-tight seal without welding

What is the purpose of grooved joints? A) Preventing vibration B) Allowing easy disassembly for maintenance C) Reducing pipe diameter D) Increasing fluid velocity

Allowing easy disassembly for maintenance

What is the effect of wind loads on outdoor piping? A) Increases internal pressure B) Requires additional structural support C) Eliminates corrosion risks D) Reduces pipe weight

Requires additional structural support

What is the primary cause of ice loads on pipes? A) Condensation B) Freezing rain and extreme cold C) High pressure D) Poor insulation

Freezing rain and extreme cold

What is a common method to reduce seismic risks in piping systems? A) Increasing pipe diameter B) Using flexible supports C) Painting the pipes D) Reducing pipe length

Using flexible supports

What is a characteristic of flow-induced vibration in piping systems? A) Only occurs at low temperatures B) Can cause fatigue failures if not controlled C) Reduces fluid velocity D) Strengthens the piping structure

Can cause fatigue failures if not controlled

What is the major risk associated with pressure transients? A) Pipe discoloration B) Water hammer damage C) Increased insulation costs D) Decreased pipe thickness

Water hammer damage

Which factor determines the required pipe wall thickness? A) Fluid color B) Internal pressure and material strength C) Pipe length D) Insulation type

Internal pressure and material strength

Why are high-alloy materials used in corrosive environments? A) They are cheaper B) They have better corrosion resistance C) They are easier to weld D) They are lighter in weight

They have better corrosion resistance

Which factor is NOT typically considered when selecting a piping material? A) Corrosion resistance B) Pressure-temperature ratings C) Pipe color D) Erosion resistance

Pipe color

What happens if piping insulation is not considered in the design? A) The pipe will always overheat B) Heat loss or gain may affect system efficiency C) The pipe will become structurally weak D) Fluid velocity will decrease

Heat loss or gain may affect system efficiency

What is the main concern in piping systems subject to high-temperature variations? A) Risk of thermal expansion stress B) Increased corrosion rate C) Decreased pressure D) Reduced material strength

Risk of thermal expansion stress

Which of the following factors affects pipe stress the most? A) The pipe color B) Internal pressure and thermal expansion C) Insulation material D) The type of pipe fittings used

Internal pressure and thermal expansion

Which type of piping joint is most commonly used in high-pressure applications? A) Brazed joint B) Butt-welded joint C) Threaded joint D) Compression joint

Butt-welded joint

What is the purpose of using expansion loops in piping design? A) To reduce corrosion B) To accommodate thermal expansion and contraction C) To decrease fluid velocity D) To lower installation costs

To accommodate thermal expansion and contraction

What is a common method used to reduce vibration in piping systems? A) Increasing pipe length B) Using flexible supports and dampers C) Removing pipe insulation D) Adding more pipe joints

Using flexible supports and dampers

What is the main function of a thrust block in buried piping systems? A) Prevent thermal expansion B) Absorb and counteract pressure forces C) Reduce corrosion D) Support pipe weight

Absorb and counteract pressure forces

What is a major concern when designing piping systems for cryogenic applications? A) Pipe expansion B) Material brittleness at low temperatures C) High-pressure loss D) Slow fluid flow

Material brittleness at low temperatures

What is a major disadvantage of brazed joints in piping systems? A) Prone to leakage B) Limited high-temperature applications C) Weak structural integrity D) High material costs

Limited high-temperature applications

What is the primary function of a piping support system? A) Increase pipe pressure B) Control movement and reduce stress on the piping system C) Enhance pipe color D) Decrease pipe length

Control movement and reduce stress on the piping system

Why are threaded joints generally not used in high-pressure applications? A) They are expensive B) They have a high risk of leakage and fatigue failure C) They require specialized welding D) They are difficult to manufacture

They have a high risk of leakage and fatigue failure

What is the main disadvantage of compression joints? A) Require welding B) Limited to low-temperature applications C) Difficult to install D) High material cost

Limited to low-temperature applications

What is the primary purpose of a pipe flange? A) To allow for easy assembly and disassembly B) To increase fluid pressure C) To reduce pipe weight D) To eliminate corrosion

To allow for easy assembly and disassembly

What type of piping joint is commonly used for instrument and control tubing? A) Threaded joints B) Compression fittings C) Brazed joints D) Butt-welded joints

Compression fittings

Which of the following factors has the greatest impact on seismic loads? A) Pipe diameter B) Pipe material C) Ground acceleration and building movement D) Fluid density

Ground acceleration and building movement

What causes water hammer in piping systems? A) Fluid freezing B) Sudden changes in fluid velocity C) Pipe expansion D) High external temperature

Sudden changes in fluid velocity

What is the primary consideration for pipe wall thickness determination? A) Fluid density B) Internal pressure and material strength C) Pipe color D) Insulation material

Internal pressure and material strength

Which load type is generally time-invariant? A) Deadweight load B) Wind load C) Seismic load D) Water hammer

Deadweight load

What is the primary factor in selecting a piping material? A) Cost B) Compatibility with fluid and operating conditions C) Pipe color D) Manufacturer's preference

Compatibility with fluid and operating conditions

What is the purpose of wind bracing in outdoor piping? A) To reduce corrosion B) To support the system against wind loads C) To increase pipe flexibility D) To prevent thermal expansion

To support the system against wind loads

What is an effective method to prevent erosion-corrosion? A) Increasing flow velocity B) Using erosion-resistant materials C) Reducing pipe diameter D) Eliminating pipe supports

Using erosion-resistant materials

What type of piping system is most susceptible to seismic loads? A) Underground piping B) Above-ground, large-diameter piping C) Small-diameter copper tubing D) Plastic drain pipes

Above-ground, large-diameter piping

Which of the following is a sustained load in piping systems? A) Deadweight B) Seismic load C) Wind load D) Water hammer

Deadweight

What is the main disadvantage of threaded joints? A) Difficult to install B) Low pressure rating and susceptibility to vibration failure C) High material cost D) Only available in large sizes

Low pressure rating and susceptibility to vibration failure

What happens if a piping system is not designed for seismic loads in an earthquake-prone area? A) Nothing significant B) Structural damage or failure may occur C) Increased fluid flow D) Pipe weight is reduced

Structural damage or failure may occur

Which of the following is NOT a common method to reduce vibration in piping systems? A) Adding pipe supports B) Using flexible connections C) Increasing flow velocity D) Modifying pipe layout

Increasing flow velocity

What is the function of a pipe support? A) To increase pressure B) To carry the weight and restrain movement of the pipe C) To change fluid direction D) To decrease pipe length

To carry the weight and restrain movement of the pipe

What is a major consequence of inadequate pipe wall thickness? A) Increased cost B) Risk of pressure failure and leaks C) Reduced corrosion D) Better insulation

Risk of pressure failure and leaks

What is the most important consideration in maintaining pressure integrity? A) Pipe wall thickness and material selection B) Color coding of pipes C) Insulation thickness D) Pipe diameter

Pipe wall thickness and material selection

B2 Flashcards

(68 cards)