Question 1

A spandrel beam in a building is a beam that

Accepted Answer

A) is partially embedded in the ground. 
B) is supported by a continuous wall below it. 
C) supports a continuous wall above it. 
D) has a floor slab or roof slab on both sides. 
E) runs on the outside edge of a floor or roof. 
A) is partially embedded in the ground. 
B) is supported by a continuous wall below it. 
C) supports a continuous wall above it. 
D) has a floor slab or roof slab on both sides. 
E) runs on the outside edge of a floor or roof.

Question 2

What is the purpose of a separation joint?

Accepted Answer

A building separation joint (S

Question 3

What is a control joint and how does it differ from an expansion joint?

Accepted Answer

A control joint is provided in component

Question 4

A movement joint allows stress- free expansion and contraction of buildings and components while a static joint subjects the building and components to movement stresses. So, why are movement stresses undesirable?

Accepted Answer

Movement stresses are an addit

Question 5

What is the typical width of a building separation joint?

Accepted Answer

The answer of What is the typical width of a...

Question 6

Joints in building components are divided into three subtypes. Name them.

Accepted Answer

1. Expansion joints

Question 7

The sealant in a joint works best when it is subjected to

Accepted Answer

A) tension, compression, shear, and bending. 
B) tension or shear only. 
C) tension, compression, and shear. 
D) tension or compression only. 
A) tension, compression, shear, and bending. 
B) tension or shear only. 
C) tension, compression, and shear. 
D) tension or compression only.

Question 8

Does every building require separation joint(s)? Explain.

Accepted Answer

Separation joint(s)is(are)needed: (i)in

Question 9

Which of the following joint sealants has the highest abrasion resistance?

Accepted Answer

A) Polyurethane 
B) Polyisobutylene 
C) Acrylic 
D) Silicone 
A) Polyurethane 
B) Polyisobutylene 
C) Acrylic 
D) Silicone

Question 10

Which of the following materials has irreversible moisture expansion during service, that is, after construction?

Accepted Answer

A) Concrete 
B) Brick 
C) Natural stone 
D) Steel 
E) Aluminum 
A) Concrete 
B) Brick 
C) Natural stone 
D) Steel 
E) Aluminum

Question 11

What is creep, and how does it affect the movement of building components? Explain.

Accepted Answer

Creep is the gradual deformation of mate

Question 12

The width of a building separation joint is generally

Accepted Answer

A) 2- 1/2 in. to 3 in. 
B) 4- 1/2 in. to 5 in. 
C) 1- 1/2 in. to 2 in. 
D) 3- 1/2 in. to 4 in. 
E) 1/2 in. to 1 in. 
A) 2- 1/2 in. to 3 in. 
B) 4- 1/2 in. to 5 in. 
C) 1- 1/2 in. to 2 in. 
D) 3- 1/2 in. to 4 in. 
E) 1/2 in. to 1 in.

Question 13

For a brick masonry fence wall (a wall between residential neighborhood and the street), the width of the joints between masonry wall panels has been determined as 1 in. Should the wall be provided with backer rod and sealant and the width of the joint increased? Explain your answer.

Accepted Answer

Being a fence wall, it is expo

Question 14

With the help of a sketch, explain why and where building separation joints should be provided.

Accepted Answer

Building separation joints should be pro

Question 15

The unit of measure for the coefficient of moisture expansion (/x)is

Accepted Answer

A) °C- 1 or °F- 1. 
B) °C or °F. 
C) feet or meters. 
D) watts. 
E) none of the above. 
A) °C- 1 or °F- 1. 
B) °C or °F. 
C) feet or meters. 
D) watts. 
E) none of the above.

Question 16

Which of the following materials has the highest coefficient of thermal expansion?

Accepted Answer

A) Aluminum 
B) Glass 
C) Plastics 
D) Steel 
E) Concrete 
A) Aluminum 
B) Glass 
C) Plastics 
D) Steel 
E) Concrete

Question 17

Creep deformation occurs in

Accepted Answer

A) aluminum members. 
B) concrete members. 
C) steel members. 
D) all of the above. 
A) aluminum members. 
B) concrete members. 
C) steel members. 
D) all of the above.

Question 18

Explain the differences between a seismic joint and a building separation joint.

Accepted Answer

A seismic joint and a building separatio

Question 19

A non- load- bearing wall that runs under a spandrel beam should be adequately separated from the beam to allow the beam to move freely in the

Accepted Answer

A) horizontal direction. 
B) vertical direction. 
C) both A and B. 
A) horizontal direction. 
B) vertical direction. 
C) both A and B.

Question 20

Explain the relative suitability of a static joint versus a dynamic (movement)joint in buildings.

Accepted Answer

Static joints are more suitable for buil

Exam 9: Principles of Joints and Sealants Expansion and Contraction Control

A spandrel beam in a building is a beam that

What is the purpose of a separation joint?

What is a control joint and how does it differ from an expansion joint?

A movement joint allows stress- free expansion and contraction of buildings and components while a static joint subjects the building and components to movement stresses. So, why are movement stresses undesirable?

What is the typical width of a building separation joint?

Joints in building components are divided into three subtypes. Name them.

The sealant in a joint works best when it is subjected to

Does every building require separation joint(s)? Explain.

Which of the following joint sealants has the highest abrasion resistance?

Which of the following materials has irreversible moisture expansion during service, that is, after construction?

What is creep, and how does it affect the movement of building components? Explain.

The width of a building separation joint is generally

For a brick masonry fence wall (a wall between residential neighborhood and the street), the width of the joints between masonry wall panels has been determined as 1 in. Should the wall be provided with backer rod and sealant and the width of the joint increased? Explain your answer.

With the help of a sketch, explain why and where building separation joints should be provided.

The unit of measure for the coefficient of moisture expansion (/x)is

Which of the following materials has the highest coefficient of thermal expansion?

Creep deformation occurs in

Explain the differences between a seismic joint and a building separation joint.

A non- load- bearing wall that runs under a spandrel beam should be adequately separated from the beam to allow the beam to move freely in the

Explain the relative suitability of a static joint versus a dynamic (movement)joint in buildings.

An Overview of the Building Delivery Process How Buildings Come Into Being

Design and Constructions Regulations

Loads on Buildings

Load Resistance the Structural Properties of Materials

Properties of the Envelope-I Thermal Properties

Properties of the Envelope-II Air and Water Vapor Control

Fire and Smoke-Related Properties

Acoustical Properties of Materials

Principles of Sustainable Construction

Soils and Excavations

Below-Grade Construction Foundation Systems and Basements

Materials for Wood Construction-I Lumber

Materials for Wood Construction-Ii Engineered Wood Products, Fasteners, and Connectors

Wood Light-Frame Construction-I

Wood Light-Frame Construction-II

Structural Insulated Panel Construction

Material Steel and Steel Components

Structural Steel Construction

Cold-Formed Steel Construction

Lime, Portland Cement, and Concrete

Concrete Construction-I Formwork, Reinforcement, and Slabs-On-Ground

Concrete Construction-II Site-Cast and Precast Concrete Framing Systems

Masonry Materials-I Mortar and Brick

Masonry Materials-II Concrete Masonry Units, Natural Stone, and Glass Masonry Units

Masonry and Concrete Bearing Wall Construction

Exterior Wall Cladding-I Principles of Rainwater Infiltration Control

Exterior Wall Cladding-II Masonry, Precast Concrete, and Gfrc

Exterior Wall Cladding-III Stucco, Adhered Veneer, Eifs, Natural Stone, and Insulated Metal Panels

Glass, Glazing, and Light-Transmitting Plastics

Windows and Doors

Exterior Wall Cladding-Iv Wall System in Glass

Roofing-I Low-Slope Roofs

Roofing-I Steep Roofs

Stairs

Floor Coverings

Ceilings

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