Question 1

A controlled amount of water and additives are then fed into the mixer and each batch is mixed for _____ .

Accepted Answer

A)  2 to 3 minutes 
B)  5 to 7 minutes 
C)  6 to 8 minutes 
D)  10 to 12 minutes 
A)  2 to 3 minutes 
B)  5 to 7 minutes 
C)  6 to 8 minutes 
D)  10 to 12 minutes C

Question 2

Lighter weight concrete masonry Chapters are not required to meet the same ASTM requirements as heavy-weight block.

Accepted Answer

A) True 
 B)False  False

Question 3

Raw materials may vary in geographical areas, but all have to be able to produce a concrete masonry Chapter that conforms to ASTM requirements.

Accepted Answer

A) True 
 B)False  True

Question 4

The cubes are moved by forklift tractors from the cubing area to the storage yard.

Accepted Answer

A) True 
 B)False

Question 5

Cubes of block are allowed to open-air cure for another _____ in the storage yard before being delivered to the customer or builder.

Accepted Answer

A)  10 days 
B)  28 days 
C)  1 week 
D)  2 weeks 
A)  10 days 
B)  28 days 
C)  1 week 
D)  2 weeks

Question 6

Concrete block have become very popular with landscaping masonry contractors and home owners for many uses.

Accepted Answer

A) True 
 B)False

Question 7

Compressive strength and size variation tests are performed ______ .

Accepted Answer

A)  on one batch of block per day 
B)  and recorded for 14-day tests 
C)  as soon as the block are removed from the kilns 
D)  only at the customer's or contractor's request 
A)  on one batch of block per day 
B)  and recorded for 14-day tests 
C)  as soon as the block are removed from the kilns 
D)  only at the customer's or contractor's request

Question 8

The molding machine operates at _____ cycles per minute.

Accepted Answer

A)  8 
B)  10 
C)  12 
D)  15 
A)  8 
B)  10 
C)  12 
D)  15

Question 9

Most block today have three cells instead of the older design of three cells.

Accepted Answer

A) True 
 B)False

Question 10

On the special trucks used to deliver block to the job site, the boom of the forklift has a drop reach of about _____ and is able to swing in any direction.

Accepted Answer

A)  5 feet 
B)  6 feet 
C)  12 feet 
D)  15 feet 
A)  5 feet 
B)  6 feet 
C)  12 feet 
D)  15 feet

Exam 8: Manufacture of Concrete Block Masonry

A controlled amount of water and additives are then fed into the mixer and each batch is mixed for _____ .

Lighter weight concrete masonry Chapters are not required to meet the same ASTM requirements as heavy-weight block.

Raw materials may vary in geographical areas, but all have to be able to produce a concrete masonry Chapter that conforms to ASTM requirements.

The cubes are moved by forklift tractors from the cubing area to the storage yard.

Cubes of block are allowed to open-air cure for another _____ in the storage yard before being delivered to the customer or builder.

Concrete block have become very popular with landscaping masonry contractors and home owners for many uses.

Compressive strength and size variation tests are performed ______ .

The molding machine operates at _____ cycles per minute.

Most block today have three cells instead of the older design of three cells.

On the special trucks used to deliver block to the job site, the boom of the forklift has a drop reach of about _____ and is able to swing in any direction.

Safety on the Job

Basic Tools of the Trade

Learning to Use the Basic Tools

Related Equipment

Development of Clay and Shale Brick

Manufacture of Brick

Development of Concrete Block

Mixing Mortar

Laying the Brick to the Line

Building the Brick Corner

The Development of Mortar

Types of Mortar and Their Characteristics

Introduction to Bonding

Traditional Structural and Pattern Bonds

Laying Concrete Block to the Line

Building the Block Corner

Bonding Concrete Block and Rules for Bonding

Estimating Brick Masonry by Rule of Thumb

Estimating Concrete Block Masonry Materials

Cutting With the Masonry Saw

Building a Masonry Composite Wall of Brick and Concrete Block

Cavity and Reinforced Masonry Walls

Masonry Supports, Chases, and Bearings

Movement Joints and Intersecting Walls

Installing Anchor Bolts, Brick Corbeling, and Wall Copings

Glass Block Masonry

Types of Scaffolding

Safety Rules for Erecting and Using Scaffolding

Cleaning Brick and Concrete Block

Removing Various Stains From Masonry Walls

One-Flue Chimneys

History, Theory, and Function of a Fireplace and Chimney

Design and Construction of Fireplaces and Chimneys

Multiple-Opening and Heat-Circulating Fireplaces

Development of Arches

Construction of Semicircular and Segmental Arches

Construction of a Jack Arch

Concrete Forms and Placing Footings

Essentials of Concrete Work

Line and Symbol Identification

The Working Drawings

Dimensions and Scales

Filters