Question 1

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

Accepted Answer

A)  Height, H, of the unit
B)  Width, W, of the unit
C)  Length, L, of the unit

Question 2

How is mason's sand different from regular sand?

Accepted Answer

The particle size gradation of...

Question 3

The term CMU is generally used as an acronym for

Accepted Answer

A)  concrete masonry unit.
B)  cement mortar underbed.
C)  concrete masonry underbed.
D)  clay masonry underbed.
E)  clay masonry unit.

Question 4

A masonry unit that has no voids (e.g., no core holes) is referred to as a

Accepted Answer

A)  100% solid unit.
B)  solid unit.
C)  A or B.

Question 5

For a masonry wall, the compressive strength of mortar should be as high as economically feasible.

Accepted Answer

A) True 
 B)False

Question 6

The nominal dimension of a masonry unit whose actual dimension equals 7- 5/8 in. is

Accepted Answer

A)  7 in.
B)  7- 1/2 in.
C)  7- 3/4 in.
D)  7- 1/4 in.
E)  none of the above.

Question 7

Bricks that have core holes are

Accepted Answer

A)  molded bricks.
B)  extruded bricks.
C)  A and B.

Question 8

Mortar may be specified either by proportion specification or by property specification. Which of these two is more commonly used?

Accepted Answer

A)  Property specification
B)  Proportion specification

Question 9

Why is concave mortar joint profile the most water- leakage resistant profile?

Accepted Answer

Because the concave joint is t...

Question 10

A modular brick measures 4 × 2- 2/3 × 8. What are the dimensions of (i)rowlock face and (ii)soldier face?

Accepted Answer

(i)Rowlock face: 4 ×...

Question 11

Retempering of mortar means

Accepted Answer

A)  adding sand to mortar.
B)  adding Portland cement to mortar.
C)  adding water to mortar.
D)  adding lime to mortar.

Question 12

ASTM specifications classify masonry mortar into Type M, Type S, Type N, and Type O. What is this classification based on?

Accepted Answer

The classification is based on...

Question 13

Masonry mortar types are classified as

Accepted Answer

A)  Types M, S, N, and O.
B)  Types I, II, III, and IV.
C)  Types 1, 2, 3, and 4.
D)  Types P, Q, R, and S.
E)  either B or C.

Question 14

IRA is a measure of the tensile strength of a brick.

Accepted Answer

A) True 
 B)False

Question 15

Portland cement plus lime (PCL)and sand are three particulate materials in mortar. In this mix, sand is three times that of PCL. Is this 3:1 relationship by weights of the materials or by their volumes?

Accepted Answer

The answer of Portland cement plus lime (PCL)and sand are...

Question 16

ASTM specifications classify masonry mortar into Type M, Type S, Type N, and Type O. The mortar can be specified based on the volume proportions of its three ingredients (Portland cement, lime, and sand)or based the mortar's strength. Which of the two specification methods-proportion specification or strength specification
-is commonly used?

Accepted Answer

Proportion...

Question 17

The flexural tensile bond strength of a masonry wall is a function of

Accepted Answer

A)  the type of masonry units.
B)  the quality of workmanship.
C)  the compressive strength of mortar.
D)  the curing of mortar.
E)  all of the above.

Question 18

ASTM specifications classify masonry mortar into Type M, Type S, Type N, and Type O. The mortar can be specified based on the volume proportions of its three ingredients (Portland cement, lime, and sand)or based the mortar's strength. In which situations is strength specification used?

Accepted Answer

Strength specification yields ...

Question 19

The flexural tensile bond strength of a masonry wall is relevant in

Accepted Answer

A)  an unreinforced masonry wall subjected to gravity loads.
B)  a reinforced masonry wall subjected to lateral loads.
C)  an unreinforced masonry wall subjected to lateral loads.
D)  a reinforced masonry wall subjected to gravity loads.
E)  all of the above.

Question 20

Give the ASTM classification of mortar types and their respective applications.

Accepted Answer

The ASTM (American Society for Testing a...

Exam 24: Masonry Materials-I Mortar and Brick

Give the ASTM classification of mortar types and their respective applications.

Correct Answer
Answered by ExamLex AI
The ASTM (American Society for Testing a...
View Answer

The flexural tensile bond strength of a masonry wall is a function of

Correct Answer
verified

IRA is a measure of the tensile strength of a brick.

Correct Answer
verified

Bricks that have core holes are

Correct Answer
verified

Masonry mortar types are classified as

Correct Answer
verified

Correct Answer
verified
Proportion...
View Answer

The nominal dimension of a masonry unit whose actual dimension equals 7- 5/8 in. is

Correct Answer
verified

Mortar may be specified either by proportion specification or by property specification. Which of these two is more commonly used?

Correct Answer
verified

Why is concave mortar joint profile the most water- leakage resistant profile?

Correct Answer
verified
Because the concave joint is t...
View Answer

For a masonry wall, the compressive strength of mortar should be as high as economically feasible.

Correct Answer
verified

ASTM specifications classify masonry mortar into Type M, Type S, Type N, and Type O. The mortar can be specified based on the volume proportions of its three ingredients (Portland cement, lime, and sand)or based the mortar's strength. In which situations is strength specification used?

Correct Answer
verified
Strength specification yields ...
View Answer

Portland cement plus lime (PCL)and sand are three particulate materials in mortar. In this mix, sand is three times that of PCL. Is this 3:1 relationship by weights of the materials or by their volumes?

Correct Answer
verified

A masonry unit that has no voids (e.g., no core holes) is referred to as a

Correct Answer
verified

The term CMU is generally used as an acronym for

Correct Answer
verified

The flexural tensile bond strength of a masonry wall is relevant in

Correct Answer
verified

Retempering of mortar means

Correct Answer
verified

A modular brick measures 4 × 2- 2/3 × 8. What are the dimensions of (i)rowlock face and (ii)soldier face?

Correct Answer
verified
(i)Rowlock face: 4 ×...
View Answer

ASTM specifications classify masonry mortar into Type M, Type S, Type N, and Type O. What is this classification based on?

Correct Answer
verified
The classification is based on...
View Answer

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

Correct Answer
verified

How is mason's sand different from regular sand?

Correct Answer
verified
The particle size gradation of...
View Answer

Exam 24: Masonry Materials-I Mortar and Brick

Give the ASTM classification of mortar types and their respective applications.

Correct AnswerAnswered by ExamLex AIThe ASTM (American Society for Testing a...View AnswerShow Answer

The flexural tensile bond strength of a masonry wall is a function of

Correct AnswerverifiedShow Answer

IRA is a measure of the tensile strength of a brick.

Correct AnswerverifiedShow Answer

Bricks that have core holes are

Correct AnswerverifiedShow Answer

Masonry mortar types are classified as

Correct AnswerverifiedShow Answer

Correct AnswerverifiedProportion...View AnswerShow Answer

The nominal dimension of a masonry unit whose actual dimension equals 7- 5/8 in. is

Correct AnswerverifiedShow Answer

Mortar may be specified either by proportion specification or by property specification. Which of these two is more commonly used?

Correct AnswerverifiedShow Answer

Why is concave mortar joint profile the most water- leakage resistant profile?

Correct AnswerverifiedBecause the concave joint is t...View AnswerShow Answer

For a masonry wall, the compressive strength of mortar should be as high as economically feasible.

Correct AnswerverifiedShow Answer

ASTM specifications classify masonry mortar into Type M, Type S, Type N, and Type O. The mortar can be specified based on the volume proportions of its three ingredients (Portland cement, lime, and sand)or based the mortar's strength. In which situations is strength specification used?

Correct AnswerverifiedStrength specification yields ...View AnswerShow Answer

Portland cement plus lime (PCL)and sand are three particulate materials in mortar. In this mix, sand is three times that of PCL. Is this 3:1 relationship by weights of the materials or by their volumes?

Correct AnswerverifiedShow Answer

A masonry unit that has no voids (e.g., no core holes) is referred to as a

Correct AnswerverifiedShow Answer

The term CMU is generally used as an acronym for

Correct AnswerverifiedShow Answer

The flexural tensile bond strength of a masonry wall is relevant in

Correct AnswerverifiedShow Answer

Retempering of mortar means

Correct AnswerverifiedShow Answer

A modular brick measures 4 × 2- 2/3 × 8. What are the dimensions of (i)rowlock face and (ii)soldier face?

Correct Answerverified(i)Rowlock face: 4 ×...View AnswerShow Answer

ASTM specifications classify masonry mortar into Type M, Type S, Type N, and Type O. What is this classification based on?

Correct AnswerverifiedThe classification is based on...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

How is mason's sand different from regular sand?

Correct AnswerverifiedThe particle size gradation of...View AnswerShow Answer

Correct Answer
Answered by ExamLex AI
The ASTM (American Society for Testing a...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Proportion...
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Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Because the concave joint is t...
View Answer

Correct Answer
verified

Correct Answer
verified
Strength specification yields ...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
(i)Rowlock face: 4 ×...
View Answer

Correct Answer
verified
The classification is based on...
View Answer

Correct Answer
verified

Correct Answer
verified
The particle size gradation of...
View Answer