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Concrete Exam > Test 3 > Flashcards

Test 3 Flashcards

1
Q

A steel worker installing steel is using a safety belt and shall be protected from falling a maximum of ___ feet.
A) 4’
B) 6’
C) 5’
D) 8’

A

B) 6’

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2
Q

A steel worker is on a walking/working surface, what is the highest distance of the lowest level before a tie off?
A) 6 feet
B) 16 feet
C) 8 feet
D) 12 feet

A

A) 6 feet

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3
Q

Steel workers are setting and tying reinforcing steel for cast in place concrete. According to OSHA, what is the highest distance above the lowest level before a tie off?
A) 10’
B) 16’
C) 20’
D) 6’

A

D) 6’

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4
Q

For a minimum trench depth of __ feet, OSHA requires an adequate means of exit, such as ladders or steps
A) 6
B) 3
C) 4
D) 5

A

C) 4 feet

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5
Q

According to OSHA, an excavation projects where employees have to enter an excavation, soil shall be stored at least how far from the edge?
A) 4 ft
B) 3 ft
C) 2 ft
D) 5 ft

A

C) 2 ft

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6
Q

Sides of trenches in unstable soft material of ___ feet or more in depth shall be shored, braced or sloped to protect the employees working within them.
A) 6
B) 5
C) 3
D) 4

A

B) 5

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7
Q

According to OSHA, employees must be protected from cave-ins in excavations that are equal to, or exceed a depth of how many feet?
A) 4
B) 6
C) 5
D) 3

A

C) 5

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8
Q

According to OSHA, employees must be protected from cave ins in excavation at what minimum depth?
A) 6
B) 4
C) 3
D) 5

A

D) 5

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9
Q

If the highest grade when the sidewalk or grade is not more than 10 feet above grade level, what do you reference the height of the building?
A) lowest grade at building
B) Nearest property line
C) you take the highest sidewalk or grade within 5 feet of the building
D) take the lowest sidewalk or grade within 5 feet of the building

A

D) take the lowest sidewalk or grade within 5 feet of the building

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10
Q

According to the building code, bolts for fastening sill plates to the foundation should be spaced no further than __ inches apart.
A) 240
B) 120
C) 96
D) 72

A

D) 72

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11
Q

According to the building code, the minimum diameter of anchor bolts for attaching sill plates to the foundation wall is __ inch.
A) 3/4
B) 1/4
C) 1/2
D) 5/8

A

C) 1/2

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12
Q

Seismic zones 0-3 using anchor bolts shall not be spaced not more than 6 feet apart, 1/2 inch in diameter, and embedded at least __ inches into the concrete.
A) 7
B) 8
C) 5
D) 10

A

A) 7

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13
Q

According to the building code, the minimum thickness of concrete floor slabs supported directly on the ground shall not be less than __ inches.
A) 4
B) 3
C) 4 1/2
D) 3 1/2

A

D) 3 1/2

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14
Q

According to the building code, when placing concrete, the aggregate size shall not exceed __ the clear space between reinforcing bars
A) 1/2
B) 1/4
C) 3/4
D) 2/3

A

C) 3/4

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15
Q

According to the building code, the maximum size of aggregate in concrete placed in forms shall be __ the dimension of the form opening.
A) 1/5
B) 1/2
C) 1/3
D) 1/4

A

A) 1/5

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16
Q

According to the building code, concrete slabs placed on grade should not have an aggregate size exceeding ___ the thickness of the slab.
A) 1/5
B) 1/4
C) 1/2
D) 1/3

A

D) 1/3

17
Q

What is the minimum time before taking a concrete test?
A) 7 days
B) 3 days
C) 28 days
D) 14 days

A

C) 28 days

18
Q

According to the building code, how many compressive test cylinders are required for 750 cubic yards of poured concrete?
NOTE: or not less than one test a day
SOl: 750/150=5
A) 15
B) 5
C) 50
D) 1

A

B) 5

19
Q

The depositing of retempered concrete is permitted if__
A) completed within 15 minutes of retempering
B) authorized by the building official
C) required for prevention of a cold joint
D) the ambient temperature is less than 90*F

A

B) authorized by the building official

20
Q

What is the biggest pipe that can be put into 6 inches of concrete?
A) 4 inches
B) 1 inch
C) 2 inches
D) 3 inches

A

C) 2 inches

21
Q

The recommended minimum cover (or protection) for #5 reinforcing in concrete walls which are not exposed directly to the ground or to the weather is ___ to face of concrete.
A) 1 1/2” from center of bar
B) 1/4” from center of bar
C) 3/4” from outside of bar
D) 2” from center of bar

A

C) 3/4” from outside of bar

22
Q

All reinforcing bars shall have a minimum cover of __ inch, 1 1/2 inches when exposed to weather and 2 inches when exposed to soil
A) 3/4
B) 1
C) 3/8
D) 1/8

A

A) 3/4

23
Q

According to the building code, the minimum thickness of concrete basement floor slabs shall not be less than __ inches
A) 4
B) 3
C) 4 1/2
D) 3 1/2

A

D) 3 1/2

24
Q

A structural horizontal bearing on masonry or concrete walls, shall have a minimum support of __
A) 6 inches
B) 5 inches
C) 4 inches
D) 3 inches

A

C) 4 inches

25
Q

A 25 foot long driveway with an 8% grade rises __ inches from one end to another
A) 20
B) 36
C) 40
D) 24

A

D) 24

Concrete Exam (7 decks)

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