Masonry Practice Test 2

26 Questions | By Dduarte | Last updated: Jan 4, 2013 | Total Attempts: 4707

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You have 1 hour to complete this test.

Questions and Answers

1.

Bars spliced by non-contact lap splices shall not be spaced transversely farther apart than _______ the required length of lap nor more than 8 inches.
- A.
  
  1/5
- B.
  
  1/8
- C.
  
  1/4
- D.
  
  3/8
2.

Walls should be protected from rain ________, depending on the temperature, so that the mortar is fully set and bond has occurred.
- A.
  
  10 to 20 hours
- B.
  
  15 to 24 hours
- C.
  
  24 to 48 hours
- D.
  
  32 to 48 hours
3.

Control joints provide for movement of a wall in contraction and can have some solid masonry or grout in the joint.
- A.
  
  True
- B.
  
  False
4.

For low-lift grouting, grout shall not be poured until the mortar has set _____ to adequately withstand the pressure of the grout.
- A.
  
  At least 16 hrs. past final set
- B.
  
  A sufficient time
- C.
  
  To full strength
- D.
  
  A minimum of 24 hrs
5.

Due to improper location or failure to install dowels, new dowels may be __________.
- A.
  
  Not necessary
- B.
  
  Disputed by the contractor
- C.
  
  Required
- D.
  
  Part of a code provision
6.

When ambient temperature is between 40°F and 32°F, _____ shall be heated to produce mortar between 40°F and 120°F.
- A.
  
  Concrete sand
- B.
  
  Drinking water
- C.
  
  Mortar sand or mixing water
- D.
  
  Mortar sand and mixing water
7.

The maximum tie spacing may not exceed 16 longitudinal bar diameters, __________ tie diameters, or the least column dimensions.
- A.
  
  12
- B.
  
  16
- C.
  
  24
- D.
  
  48
8.

In order to obtain a 28 day grout compressive strength of 2,000 psi, the seven day test, if taken, should be at least _______psi.
- A.
  
  1000
- B.
  
  1200
- C.
  
  1500
- D.
  
  2000
9.

Control joints must be ______ with structural anchoring requirements of intersection walls.
- A.
  
  Independent
- B.
  
  Anchored
- C.
  
  Coordinated
- D.
  
  Separated
10.

The normal head size of a vibrator is ___________.
- A.
  
  ¾”
- B.
  
  1"
- C.
  
  ¾” to 1 ½”
- D.
  
  1” to 1 ½”
11.

When the outside air temperature is less than 20°F, ___________ shall be provided to maintain the air temperature above 32°F.
- A.
  
  Mason jackets
- B.
  
  Heated mortar boards
- C.
  
  Enclosures or auxiliary heat
- D.
  
  Enclosures and auxiliary heat
12.

Control joints are for the purpose of ____________.
- A.
  
  Allowing concrete block to expand
- B.
  
  Allowing the block to shrink without widespread cracking
- C.
  
  Strengthening walls
- D.
  
  Weakening walls
13.

Special grout lifts of 12.67 feet maximum are permitted when ________.
- A.
  
  Masonry has cured for at least 4 hours
- B.
  
  Grout slump is between 10 and 11 inches
- C.
  
  There are no intermediate reinforced bond beams
- D.
  
  All of the above
14.

Grout shall have a minimum compressive strength of _________psi at 28 days.
- A.
  
  1500
- B.
  
  1900
- C.
  
  2000
- D.
  
  2500
15.

Masonry walls that are covered with plastic or canvas should cover the top of the wall and hang over at least _________ on the face.
- A.
  
  12"
- B.
  
  2'
- C.
  
  3'
- D.
  
  4'
16.

The maximum spacing of cleanouts in a solid grouted system shall not exceed _________ inches.
- A.
  
  8
- B.
  
  24
- C.
  
  32
- D.
  
  48
17.

According to ASTM C 476, grout prepared at the jobsite shall be mixed for a minimum of ___________minutes.
- A.
  
  1
- B.
  
  3
- C.
  
  5
- D.
  
  10
18.

The temperature of masonry units shall not be less than _____ when laid in masonry.
- A.
  
  10°F
- B.
  
  20°F
- C.
  
  30°F
- D.
  
  40°F
19.

When applicable, prisms shall be grouted not less than __________, nor more than ___________ after construction of the prism.
- A.
  
  6 hours /12 hours
- B.
  
  1 day/ 2 days
- C.
  
  1 day/ 3 days
- D.
  
  2 days/ 3 days
20.

Grout pours _________may be consolidated by puddling.
- A.
  
  12 inches or less
- B.
  
  Less than 24 inches
- C.
  
  That are non structural
- D.
  
  In partially grouted walls
21.

With masonry units, bonding is achieved by using _________.
- A.
  
  Cement
- B.
  
  Mortar
- C.
  
  Grout
- D.
  
  Mortar and grout
22.

If the mean daily air temperature is 20°F, or below, the masonry temperature is ____________.
- A.
  
  To be maintained below 20°F
- B.
  
  To be maintained at 20°F or above
- C.
  
  To be maintained at 32°F
- D.
  
  To be maintained above 32°F
23.

Each masonry prism shall be constructed in _________.
- A.
  
  The laboratory
- B.
  
  The contractors yard
- C.
  
  An open moisture tight bag
- D.
  
  A shelter
24.

When installing control joints, the mortar joint should be raked _________ inch deep.
- A.
  
  ½
- B.
  
  1
- C.
  
  5/8
- D.
  
  3/4
25.

The minimum grout space dimension for AAC masonry units shall be _______ or a 3 inch diameter cell.
- A.
  
  2” x 2”
- B.
  
  2 ½” x 2 ½”
- C.
  
  3” x 3”
- D.
  
  3 ½” x 3 ½”