Question 1

A seismic joint is generally similar to a building expansion joint but smaller in width.

Accepted Answer

A) True 
 B)False

Question 2

Which exterior- use sealant has the highest movement capability and which sealant has the highest abrasion resistance?

Accepted Answer

Silicone has the hig

Question 3

Because the provision of static joints adds to the stresses on a component, requiring a larger cross section, which increases the cost of the component, should the static joints be avoided? Explain.

Accepted Answer

Static joints cannot be avoided complete

Question 4

Which structural materials (i)undergo both thermal expansion and thermal contraction during service, and which materials (ii)undergo only moisture expansion (no moisture shrinkage)during service?

Accepted Answer

(i)All materials undergo therm

Question 5

Silicone, polyurethane, and polysulfide are commonly used as joint sealants. Explain their relative suitability for various applications.

Accepted Answer

Silicone, polyurethane, and polysulfide

Question 6

A joint between two walls has been determined to be 0.5 in. if the joint is not to be filled with a sealant. If the same joint is to be filled with a class 50 sealant, its width should be

Accepted Answer

A) 1/4 in. maximum. 
B) 1/4 in. minimum. 
C) 2- 1/2 in. minimum. 
D) 1 in. minimum. 
E) none of the above. 
A) 1/4 in. maximum. 
B) 1/4 in. minimum. 
C) 2- 1/2 in. minimum. 
D) 1 in. minimum. 
E) none of the above.

Question 7

Building separation joints in a long rectilinear building are generally located at every

Accepted Answer

A) 400 ft on center. 
B) 250 ft on center. 
C) 500 ft on center. 
D) 350 ft on center. 
E) none of the above. 
A) 400 ft on center. 
B) 250 ft on center. 
C) 500 ft on center. 
D) 350 ft on center. 
E) none of the above.

Question 8

In determining the amount of thermal expansion or contraction of a component due to temperature change, check below the factor(s)that are not relevant.
1. Change in temperature of component
2. Compressive strength of the component's material
3. Tensile strength of the component's material
4. Original length of material
5. Coefficient of thermal expansion

Accepted Answer

1. Change in temperature of component
2.

Question 9

A rectangular building with a large footprint in both directions has been provided with one separation joint (SJ)in each direction so that the SJs cross each other at right angle. The building is a frame structure, consisting of columns and beams and it has been decided to duplicate the columns and beams at the joint. How many columns will be needed at the location where the joints cross?

Accepted Answer

The answer of A rectangular building with a large footprint...

Question 10

Why should a joint sealant have adhesion only to the two opposite surfaces of a joint? Explain.

Accepted Answer

If the sealant adheres to the two opposi

Question 11

Should a clear space be provided between a floor slab (or a roof slab)and a partition wall below? Explain your answer.

Accepted Answer

Yes, a clear space should be p

Question 12

Which of the following materials does not represent a joint sealant?

Accepted Answer

A) Silicone 
B) Polysulfide 
C) Polyvinyl chloride 
D) Polyisobutylene 
A) Silicone 
B) Polysulfide 
C) Polyvinyl chloride 
D) Polyisobutylene

Question 13

The equation used for determining the thermal movement, t, of a member is

Accepted Answer

A) 6t = L(Ot). 
B) 6t = αL(Ot). 
C) 6t = [L(Ot)]/α. 
D) 6t = (αL)/(Ot). 
E) 6t = [α(Ot)]/L. 
A) 6t = L(Ot). 
B) 6t = αL(Ot). 
C) 6t = [L(Ot)]/α. 
D) 6t = (αL)/(Ot). 
E) 6t = [α(Ot)]/L.

Question 14

Do metals (such as steel and aluminum)expand or contract greater than plastics, such as (polyethylene and nylon)when subjected to the same temperature change?

Accepted Answer

Metals exp

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

A seismic joint is generally similar to a building expansion joint but smaller in width.

Which exterior- use sealant has the highest movement capability and which sealant has the highest abrasion resistance?

Because the provision of static joints adds to the stresses on a component, requiring a larger cross section, which increases the cost of the component, should the static joints be avoided? Explain.

Which structural materials (i)undergo both thermal expansion and thermal contraction during service, and which materials (ii)undergo only moisture expansion (no moisture shrinkage)during service?

Silicone, polyurethane, and polysulfide are commonly used as joint sealants. Explain their relative suitability for various applications.

A joint between two walls has been determined to be 0.5 in. if the joint is not to be filled with a sealant. If the same joint is to be filled with a class 50 sealant, its width should be

Building separation joints in a long rectilinear building are generally located at every

Why should a joint sealant have adhesion only to the two opposite surfaces of a joint? Explain.

Should a clear space be provided between a floor slab (or a roof slab)and a partition wall below? Explain your answer.

Which of the following materials does not represent a joint sealant?

The equation used for determining the thermal movement, t, of a member is

Do metals (such as steel and aluminum)expand or contract greater than plastics, such as (polyethylene and nylon)when subjected to the same temperature change?

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

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