Question 1

The primary reason for providing core holes in bricks is to

Accepted Answer

A)  increase the shear resistance of masonry walls.
B)  reduce the weight of bricks.
C)  provide uniform drying and firing of bricks.
D)  none of the above.E) B) and D)
F) A) and B)

Question 2

The mortar commonly recommended for use in masonry walls in seismic regions is

Accepted Answer

A)  Type N.
B)  Type I.
C)  Type S.
D)  Type II.
E)  Type P.F) C) and D)
G) B) and E)

Question 3

Using sketches and notes, describe various commonly used mortar joint profiles. Which profile gives the most watertight wall and why?

Accepted Answer

Mortar joint profiles are an important a...

Question 4

What is a brick without core holes referred to in the masonry industry-as solid brick or core- less brick?

Accepted Answer

Neither of the two. ...

Question 5

A wall made of Portland cement mortar (without lime)is more watertight than a wall made of Portland cement and lime mortar.

Accepted Answer

A) True 
 B)False

Question 6

ASTM specifications classify masonry mortar into Type M, Type S, Type N, and Type O. Which is the strongest type and which is the weakest type?

Accepted Answer

Type M is the strong...

Question 7

Bricks that are highly absorptive may need to be wetted before being laid in the wall.

Accepted Answer

A) True 
 B)False

Question 8

The most commonly used mortar joint thickness is

Accepted Answer

A)  1/2 in.
B)  3/4 in.
C)  3/8 in.
D)  5/8 in.
E)  1/4 in.F) B) and C)
G) C) and D)

Question 9

Retempering of mortar, if needed, should be generally done within

Accepted Answer

A)  1 h of the initial preparation of mortar.
B)  4 h of the initial preparation of mortar.
C)  2- 1/2 h of the initial preparation of mortar.
D)  5- 1/2 h of the initial preparation of mortar.
E)  none of the above.F) B) and E)
G) B) and D)

Question 10

In specifying the dimensions of a masonry unit, which dimension is stated first?

Accepted Answer

A)  Width, W, of the unit
B)  Height, H, of the unit
C)  Length, L, of the unitD) A) and B)
E) All of the above

Question 11

How can efflorescence on brick walls be removed?

Accepted Answer

By washing...

Question 12

A preblended cementitious mix for masonry mortar is available as

Accepted Answer

A)  PCL cement.
B)  mortar cement.
C)  masonry cement.
D)  A and B.
E)  B and C.F) A) and B)
G) A) and D)

Question 13

The cementitious material(s) in contemporary masonry mortar consist(s) of

Accepted Answer

A)  Portland cement.
B)  lime.
C)  Portland cement, lime, and sand.
D)  Portland cement and lime.
E)  Portland cement and sand.F) D) and E)
G) None of the above

Question 14

How can the spalling of masonry be prevented?

Accepted Answer

By using high- strength masonr...

Question 15

Does efflorescence in a brick wall reduce the wall's strength?

Accepted Answer

No, it is ...

Question 16

Bricks may carry a grade of SW, MW, or NW. Which factors determine the grade?

Accepted Answer

The grade of bricks is determined by sev...

Question 17

A brick has three dimensions: length, width, and height. In specifying the brick dimensions, which dimension is stated first, which next, and which is stated last?

Accepted Answer

Through- the- wall d...

Question 18

ASTM specifications classify masonry mortar into Type M, Type S, Type N, and Type O. Which of these types is recommended for use in brick veneer cladding in a: (i)highly seismic region and (ii)nonseismic region?

Accepted Answer

(i)Type S in a highl...

Question 19

Explain why the masonry industry recommends the use of the weakest mortar that will give the required performance.

Accepted Answer

The masonry industry recommends the use ...

Question 20

When mortar is specified using proportion specification, various solid materials that constitute masonry mortar are proportioned based on their

Accepted Answer

A)  wet weights.
B)  dry volumes.
C)  wet volumes.
D)  dry weights.
E)  none of the above.F) A) and D)
G) B) and C)

Exam 24: Masonry Materials-I Mortar and Brick

In specifying the dimensions of a masonry unit, which dimension is stated first?

Correct AnswerverifiedShow Answer

What is a brick without core holes referred to in the masonry industry-as solid brick or core- less brick?

Correct AnswerverifiedNeither of the two. ...View AnswerShow Answer

When mortar is specified using proportion specification, various solid materials that constitute masonry mortar are proportioned based on their

Correct AnswerverifiedShow Answer

A brick has three dimensions: length, width, and height. In specifying the brick dimensions, which dimension is stated first, which next, and which is stated last?

Correct AnswerverifiedThrough- the- wall d...View AnswerShow Answer

A preblended cementitious mix for masonry mortar is available as

Correct AnswerverifiedShow Answer

Bricks may carry a grade of SW, MW, or NW. Which factors determine the grade?

Correct AnswerAnswered by ExamLex AIThe grade of bricks is determined by sev...View AnswerShow Answer

Retempering of mortar, if needed, should be generally done within

Correct AnswerverifiedShow Answer

Bricks that are highly absorptive may need to be wetted before being laid in the wall.

Correct AnswerverifiedShow Answer

The primary reason for providing core holes in bricks is to

Correct AnswerverifiedShow Answer

Explain why the masonry industry recommends the use of the weakest mortar that will give the required performance.

Correct AnswerAnswered by ExamLex AIThe masonry industry recommends the use ...View AnswerShow Answer

How can the spalling of masonry be prevented?

Correct AnswerverifiedBy using high- strength masonr...View AnswerShow Answer

ASTM specifications classify masonry mortar into Type M, Type S, Type N, and Type O. Which is the strongest type and which is the weakest type?

Correct AnswerverifiedType M is the strong...View AnswerShow Answer

The cementitious material(s) in contemporary masonry mortar consist(s) of

Correct AnswerverifiedShow Answer

Does efflorescence in a brick wall reduce the wall's strength?

Correct AnswerverifiedNo, it is ...View AnswerShow Answer

The mortar commonly recommended for use in masonry walls in seismic regions is

Correct AnswerverifiedShow Answer

How can efflorescence on brick walls be removed?

Correct AnswerverifiedBy washing...View AnswerShow Answer

Using sketches and notes, describe various commonly used mortar joint profiles. Which profile gives the most watertight wall and why?

Correct AnswerAnswered by ExamLex AIMortar joint profiles are an important a...View AnswerShow Answer

ASTM specifications classify masonry mortar into Type M, Type S, Type N, and Type O. Which of these types is recommended for use in brick veneer cladding in a: (i)highly seismic region and (ii)nonseismic region?

Correct Answerverified(i)Type S in a highl...View AnswerShow Answer

The most commonly used mortar joint thickness is

Correct AnswerverifiedShow Answer

A wall made of Portland cement mortar (without lime)is more watertight than a wall made of Portland cement and lime mortar.

Correct AnswerverifiedShow Answer

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Neither of the two. ...
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Through- the- wall d...
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The grade of bricks is determined by sev...
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The masonry industry recommends the use ...
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By using high- strength masonr...
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Type M is the strong...
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No, it is ...
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By washing...
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Answered by ExamLex AI
Mortar joint profiles are an important a...
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(i)Type S in a highl...
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