EOC

1.

1 point

What is the correct sequence for loading the skip of a concrete mixer?

The cement first, the sand second, and the course aggregate third

The sand first, the cement second, and the course aggregate third

The course aggregate first, the cement second, and the sand third

The coarse aggregate first, the sand second, and the cement third

2.

1 point

What do you do to bricks if you must lay them in cold weather?

sprinkle them with cool water

keep them dry and warm

soak them in warm water

heat them with a propane torch

3.

1 point

Which of the following concrete joints should you cut into a concrete slab to create a plane of weakness, which force cracking at the joint

keyed joint

construction joint

isolation joint

control joint

4.

1 point

When must you install bracing on batterboards?

If the soil is hard only

If the soil is hard or the stakes are higher than three feet

If the soil is loose only

If the soil is loose or the stakes are higher than three feet

5.

1 point

When using a pope sleeve anchor bolt, how do you keep concrete from entering the sleeve?

pack it with a rag or newspaper

use concrete with aggregate larger than the sleeve opening

use a sleeve 1/4 inch larger than the bolt

keep the sleeve 1/2 inch above the concrete surface

6.

1 point

When the temperature is at or above 50 degrees F, you should cure concrete for at least how many days?

7 days

1 day

3 days

5 days

7.

1 point

What action can you take to close hairline cracks (checks) that developed due to a concentration of water and extremely fine aggregates at the surface?

pound the concrete with a hand float before troweling

follow the first regular troweling with a second troweling

apply a thin layer of dry cement to the cracks

broom the concrete in the direction of the cracks

8.

1 point

Which of the following concrete joints should you use to separate adjacent structural members to allow differential movement in the vertical plane?

doweled joint

construction joint

control joint

isolation joint

9.

1 point

Which type of cement should you use when the concrete must reach its design strength is seven days or less?

type 3

type 2

type 1

type 4

10.

1 point

You should begin the edging operation

as the sheen of water begins to leave the surface

just before floating the concrete

after the first troweling

immediately after screeding the concrete

11.

1 point

When performing a slump test, how should you fill the cone?

In three equal layers, each 1/3 the cone volume

In one layer, the entire cone volume

in four equal layers, each 1/4 the cone volume

In two equal layers, each 1/2 the cone volume

12.

1 point

What is the minimum/maximum time you should mix the mortar when machine mixing?

3 to 5 minutes

1 to 2 minutes

5 to 7 minutes

4 to 6 minutes

13.

1 point

When splicing welded wire fabric, a normal splice made by lapping

two full square plus two inches

one full square plus one inch

two full square plus one inch

one full square plus two inches

14.

1 point

How should you tool mortar joints on a concrete masonry wall?

tool vertical joints with an S shaped jointer first, then the horizontal joints with an S shaped jointer

tool vertical joints with a long jointer first, then the horizontal joints with an S shaped jointer

tool horizontal joints with a ling jointer first, then the vertical joints with an S shaped jointer

Tool horizontal joints with an S shaped jointer first, then the vertical joints with a long jointer

15.

1 point

When using 1 inch lumber for slab forms, at what approximate distance should you drive stakes along the board?

2 feet

6 feet

4 feet

8 feet

16.

1 point

When constructing large structures where moderate heat of hydration is needed, what type of cement should you use when it must reach its design strength in about 45 days?

type 3

type 4

type 1

type 2

17.

1 point

When using epoxy cement to repair concrete, what is the minimum thickness you can apply it and still retain good strength without cracking?

1/2 inch

3/4 inch

7/8 inch

1/8 inch

18.

1 point

How do you form any square or rectangular dimensioned slab using metal forms?

By letting one form end extend past each corner

By cutting the form to size with a hacksaw

They are only used for slabs sized in 10 foot increments

By ordering the correct dimensions

19.

1 point

Which of the following procedures is used to make a Michigan control joint in a concrete masonry wall?

connect stretcher blocks with a Z shaped bar placed across the joint

cut a 1/2 inch deep line into the block face

lay half and full size tongues and groove blocks

curl a strip of felt into the end core to cover the end of the block on one side of the joint

20.

1 point

Which of the following actions is used to the strike off the excess concrete to bring the surface to its proper elevation?

edging

jointing

floating

screeding

21.

1 point

When constructing pavements, sidewalks and reinforced concrete buildings, which type of concrete should you use when it must reach its design strength in about 28 days?

type 2

type 1

type 3

type 4

22.

1 point

As a practical guide, you should discard any mortar not used within

2 1/2 hours

1 1/2 hours

3 hours

2 hours

23.

1 point

How do you chase the bond for a concrete masonry wall?

spread a full mortar bed on the first course

build up the corners four courses high

lay out a story pole with 3/8 inch joints

place the first course of blocks without mortar

24.

1 point

When constructing a concrete masonry wall, what action should you take after you locate the corners?

Check the footing or slab for level

chase the bond

measure the diagonals

build the corner leads

25.

1 point

When excavating around the outside wall planes, how much working space should you allow for form construction?

2 feet

3 feet

1 foot

4 feet

26.

1 point

When using 2 inch lumber for slab forms, at what approximate distance should you drive stakes along the board?

2 feet

6 feet

8 feet

4 feet

27.

1 point

In batterboard construction, how do you hold the building lines securely in place?

Fasten the line to a plumb bob

Make a saw kerf in the outside edge of each ledger board

Make a saw kerf in the inside edge of each ledger board

Tie the line around a duplex nail

28.

1 point

When installing lintels, what is the minimum amount of bearing that you should provide at each end?

2 inches

4 inches

12 inches

6 inches

29.

1 point

Estimate the amount of course aggregate needed to mix one cubic yard of concrete when specifications call for a 1:2:3 mix using 3 inch course aggregates

18 cubic feet

12 cubic feet

21 cubic feet

14 cubic feet

30.

1 point

How do you reinforce studs that extend over four or five feet when constructing wall forms?

run double wales vertically

secure with a singe strand of tie wire

do not use studs over 4 feet long

run double wales horizontally

31.

1 point

When reinforcing beams, footings, walls and floors, what should be the minimum clear distance between parallel bars?

1 inch or 1 1/3 times the largest aggregate particle in the concrete

1 1/3 times the largest aggregate particle in the concrete only

1 1/2 times the largest aggregate particle in the concrete only

2 inches or 2 1/2 times the largest aggregate particle in the concrete

32.

1 point

Using Rule 38, estimate approximately how much cement and sand is needed for a 1:4 mix ratio

5 cubic feet of cement; 20 cubic feet of sand

7.6 cubic feet of cement; 30.4 cubic feet of sand

9.5 cubic feet of cement; 28.5 cubic feet of sand

6 cubic feet of cement; 32 cubic feet of sand

33.

1 point

When hand mixing concrete, which of the following procedures is correct?

Mix half the water with the sand and course material, than add the cement

Mix half the water with the sand and cement, then add the course material

Mix the sand and cement together first, then add the coarse material

mix the sand and course material together, than add the cement

34.

1 point

When constructing a new ramp, you must ensure the ramp's width is not

more than 36 inches

less than 36 inches

more than 48 inches

less than 48 inches

35.

1 point

When hand mixing mortar, what method allows the blending process to take place easier and quicker?

add one fourth the sand, followed by all the cement and lime, and then the remaining amount of sand

add one fourth the sand, followed by half the cement and lime, and then the remaining amount of sand and cement

add half the sand, followed by all of the cement and lime, and then the remaining amount of sand

add half the sand, followed by half the cement and lime, and then the remaining amount of sand

36.

1 point

When grade stakes are used between wooden footing forms, what action must you take before the concrete sets?

Do not use grade stakes with these forms

Remove the stakes and fill the holes with concrete

Drive the stakes one inch below the concrete surface

Remove the stakes only

37.

1 point

When laying a brick windowsill, what type of course is used?

coping

header

soldier

rowlock

38.

1 point

Estimate the amount of sand needed to mix one cubic yard of concrete when specifications call for a 1:2:3mix using 3 inch course aggregates

6 cubic feet

12 cubic feet

14 cubic feet

7 cubic feet

39.

1 point

When using waterproof paper to cure horizontal concrete surfaces, you should lap the adjacent sheets at least how many inches?

24 inches

1 inch

6 inches

12 inches

40.

1 point

When the temperature is at or above 70 degrees F, you should cure concrete for at least how many days?

5 days

7 days

3 days

1 day

41.

1 point

When constructing a footing for a bearing wall, how are the sides held in place with the correct distance maintained between them?

With rebar only

With stakes and spreaders

With stakes and rebar

With spreaders only

42.

1 point

What action can you take to ensure that all the face bricks received at the job site are uniform in quality, size and color?

request the same style

keep a sample from the first load

order them from the same manufacturer

specify the correct size

43.

1 point

When pouring concrete in the layers, how far should you insert an internal vibrator into the previous layer and why?

several inches; to help place the concrete

no more than one inch; to help place the concrete

no more than one inch; to assure a good bond

several inches; to assure and good bond

44.

1 point

What is the first step in locating corner stakes for a bulding?

Establish a baseline

Determine the soil composition

Layout the rear corner

Plumb and level the batterboards

45.

1 point

When specifications require a No. 5 rebar, what is the actual needed?

3/8 inch

1/4 inch

5/8 inch

1/2 inch

46.

1 point

What type of mortar should you choose for general use work, specifically for below-grade masonry that contacts the earth, such as foundations?

type S

type N

type M

type K

47.

1 point

When constructing footings and other structural members that are against the ground, how much space should you allow between the steel and the ground?

3 inches

2 inches

4 inches

1 inch

48.

1 point

You can tell the concrete has been vibrated long enough with an internal vibrator when a

thin mortar line appears on the forms edge

1/2 inch layer of water forms on the surface

thin sand line appears on the forms edge

3/4 inch layer of water forms on the surface

49.

1 point

Once the bulding corners are square, what is the next step taken when preparing a site for concrete?

Erect the batterboards only

Erect the batterboards and place the building lines

Plumb the corners and place the bulding lines

Plumb the corners only

50.

1 point

How high should you build the corner leads?

four or five courses

five or six courses

two or three courses

three or four courses