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MATERIALS ENGINEERING > MANUAL REVIEWER 7 > Flashcards

MANUAL REVIEWER 7 Flashcards

1
Q

What is the purpose of curing concrete?

A. To promote cement hydration
B. To promote specifications
C. To maximize aesthetics
D. No important purpose

A

A

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2
Q

What is the mixing time for concrete when mixed in a central mixing plant?

A. Less than 50s nor more than 90s
B. Less than 40s nor more than 90s
C. Less than 50s nor more than 80s
D. Less than 40s nor more than 80s

A

A

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3
Q

When transporting mixed concrete. the time elapsed from the time water added to the mix until the concrete is deposited in place shall not exceed?

A. 60 min by non-agitating trucks
B. 45 min by agitating trucks
C. 45 min by non-agitating trucks
D. 90 min by non-agitating trucks

A

C

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4
Q

When hauled by Agitating Trucks, time elapsed from the time water added to the mix until the concrete is deposited in place shall not exceed?

A. 60 min
B. 45 min
C. 75 min
D. 90 min

A

D

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5
Q

When hauled by non-agitating trucks, time elapsed from the time water added to the mix until the concrete is deposited in place shall not exceed?

A. 60 min
B. 45 min
C. 75 min
D. 90 min

A

B

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6
Q

What is the frequency of core sampling on a completed bituminous pavement?

A. To create bond between asphalt and aggregates
B. To make water and asphalt combine
C. To improve asphalt properties
D. To apply specification requirements

A

A

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7
Q

The workability of the bituminous mixture is very dependent on its ___

A. Compaction effort
B. Temperature of the mixture
C. Shape and size of aggregates
D. Asphalt content

A

B

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8
Q

What is the frequency of core sampling on a completed bituminous pavement?

A. Every 100m
B. Every 200m
C. Every 500m
D. Every 1,000m

A

B

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9
Q

What is the minimum time the contractor should submit the asphalt mix design prior to asphalting works?

A. 4 weeks
B. 3 weeks
C. 2 weeks
D. 5 days

A

B

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10
Q

Fibers used in the manufacture of geotextiles and the threads used in joining geotextiles and the threads used in joining geotextiles by sewing shall consist of long-chain synthetic polymers composed of at least ___ percent by mass polyolefins, polyesters, or polyamides

A. 50%
B. 75%
C. 85%
D. 90%

A

C

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11
Q

What is the corrugation produced by brooming the newly paved PCCP?

A. 2.0mm
B. 1.0mm
C. 1.5mm
D. 2.5mm

A

C

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12
Q

What is the sampling frequency for compressive strength of shotcrete?

A. 1 set per 25 cu.m but not less than 1 day
B. 1 set per 50 cu.m but not less than 1 day
C. 1 set per 75 cu.m but not less than 1 day
D. 1 set per 20 cu.m but not less than 1 day

A

A

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13
Q

What is the grading requirements of aggregate sub-base course, grading A as to passing sieve no. 200?

A. 0 - 12%
B. 2 - 14%
C. 0 - 25%
D. 11 - 35%

A

A

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14
Q

What is the grading requirements of aggregate base course, grading A as to passing sieve no. 200?

A. 0 - 12%
B. 2 - 14%
C. 0 - 25%
D. 11 - 35%

A

A

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15
Q

What is the grading requirements of crushed aggregate sub-base course, grading A as to passing sieve no. 200?

A. 0 - 12%
B. 2 - 14%
C. 0 - 25%
D. 11 - 35%

A

B

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16
Q

Conducting California Bearing Ratio (CBR) is forcing the plunger into the sample to a depth of ___

A. 2.0mm
B. 1.0mm
C. 1.5mm
D. 2.5mm

A

D

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17
Q

What is the no. of layer of AASHTO T-180 (Modified Proctor Test)?

A. 3
B. 4
C. 5
D. 6

A

C

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18
Q

What is the height of drop of AASHTO T-99 (Standard Proctor Test)?

A. 12”
B. 14”
C. 16”
D. 18”

A

A

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19
Q

What is the height of drop of AASHTO T-180 (Modified Proctor Test)?

A. 12”
B. 14”
C. 16”
D. 18”

A

D

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20
Q

What is the ideal time elapsed to finish slump test?

A. Within 2 minutes
B. Within 2.5 minutes
C. Within 3 minutes
D. Within 3.5 minutes

A

B

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21
Q

Acceptable of item 740 Structural Concrete Injection and Crack Report is when the epoxy bonding has penetrated at least ____ of the crack volume within the core sample

A. 90%
B. 95%
C. 85%
D. 80%

A

A

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22
Q

What is the minimum index, oxygen volume requirement for geofoam

A. 23%
B. 24%
C. 25%
D. 26%

A

B

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23
Q

What is the minimum asphalt content which the sample of Porous Asphalt Mixture can retain its shape under the condition after compaction

A. Deflection Point
B. Yield Point
C. Inflection Point
D. Tensile Point

A

C

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24
Q

This is the amount of air voids for Type-2 Gap Graded Porous Asphalt Mixture at 75 blows compaction

A. 4.0-5.5%
B. 2-14%
C. 15-25%
D. 18-25%

A

B

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25
Q

Cantabro test will require the specimen for how many revolutions of rotations on the Los Angeles Abrasion Machine?

A. 500 rev
B. 250 rev
C. 300 rev
D. 400 rev

A

C

26
Q

This is the amount of air voids for Type 1 - Open Graded Porous Asphalt Mixture at 50 blows compaction

A. 4.0 - 5.5%
B. 2 - 14%
C. 15 - 25%
D. 18 - 25%

A

D

27
Q

This is the water-reducing and retarding admixture

A. Type D
B. Type E
C. Type G
D. Type F

A

D

28
Q

This is the width of the reflectorized thermoplastic rubble strips

A. 60 - 75
B.
C.
D.

A

C

29
Q

The following are the types of water stops, except one

A. Copper
B. Rubber
C. PVC
D. Plastic

A

C

30
Q

What is the sampling weight of Concrete Joint Sealant Cold type?

A. 3.785L
B. 3.875L
C. 3.587L
D. 4.875L

A

A

31
Q

The blocks of east thermoplastic material during packaging shall be approximately

A. 300 x 915 x 50mm
B. 300 x 925 x 50mm
C. 300 x 915 x 51mm
D. 300 x 925 x 51mm

A

C

32
Q

What is the heating temperature during application of Reflective Thermoplastic Stripping Material

A. 211 +- 7 deg C
B. 215 +- 7 deg C
C. 211 +- 10 deg C
D. 159 deg C

A

A

33
Q

Soil on the area to be sodded shall be loosened to a depth not less than

A. 200 mm
B. 250 mm
C. 300 mm
D. 150 mm

A

C

34
Q

Failure of more than ___ of the reflective faces of Reflective Pavement Studs shall cause rejection of the complete batch

A. 20%
B. 25%
C. 3%
D. 4%

A

D

35
Q

Raised profile type of Reflective Pavement Studs shall have a base dimension approximately 100 mm x 100 mm and thickness of not more than ___

A. 20 mm
B. 25 mm
C. 35 mm
D. 15 mm

A

A

36
Q

The amount of glass beads of Pavement Marking to be mixed with the paint shall be ___ per liter of paint

A. 200g
B. 250g
C. 500g
D. 550g

A

C

37
Q

What is the range of index of refraction glass beads for Pavement Markings

A. 1.50-1.60
B. 2.5-2.6
C. 0.5-0.6
D. 1.2-1.8

A

A

38
Q

What is Item 517?

A. Hydroseeding
B. Cobblestone
C. Shotcrete
D. None of the above

A

D

39
Q

What is the minimum specific gravity of cobble stone for 150 - 300 mm stones?

A. 2.0
B. 2.5
C. 3.5
D. 1.5

A

B

40
Q

What is the minimum compressive strength of concrete face panels for Mechanically - Stabilized Earth (MSE) Retaining Walls at 28 days?

A. 20.7 MPa
B. 30 MPa
C. 28.0 MPa
D. 37.7 MPa

A

B

41
Q

Unit of measure for payment of shotcrete

A. cubic meter
B. square meter
C. liter
D. lump sum

A

B

42
Q

What is the allowable design discharge of shotcrete mix?

A. 2.0 hours
B. 2.5 hours
C. 3.5 hours
D. 1.5 hours

A

C

43
Q

In no case shall the vibrator be operated longer than ___ seconds in any location for rubble concrete?

A. 20 seconds
B. 10 seconds
C. 15 seconds
D. 25 seconds

A

B

44
Q

For stone masonry, bed and joints shall not extend in an unbroken line through ___ stones for bed and ___ stones for joints

A. 5 bed, 3 joints
B. 5 bed, 2 joints
C. 3 bed, 3 joints
D. 10 bed, 5 joints

A

B

45
Q

What is the load magnitude for strength classification of Drainage Steel Grating with Frame Class D?

A. 150 kN
B. 100 kN
C. 210 kN
D. 400 kN

A

C

46
Q

Class of concrete to be deposited water

A. Class A
B. Class C
C. Class Seal
D. Class B

A

C

47
Q

What is the recommended class of concrete for gravity walls?

A. Class A
B. Class C
C. Class Seal
D. Class B

A

D

48
Q

What is the recommended class of concrete for pipe beddings?

A. Class A
B. Class C
C. Class Seal
D. Class B

A

D

49
Q

What is the recommended class of concrete for sidewalk?

A. Class A
B. Class C
C. Class Seal
D. Class B

A

A

50
Q

What is the pin diameter for 20mm reinforcing steel bar?

A. 6D
B. 8D
C. 10D
D. 40D

A

A

51
Q

What is the pin diameter for 28mm reinforcing steel bar

A. 6D
B. 8D
C. 10D
D. 40D

A

B

52
Q

What is the pin diameter for 36mm reinforcing steel bar?

A. 6D
B. 8D
C. 10D
D. 40D

A

C

53
Q

H-PILE shall not contain less than 0.25% nor more than ___ copper except manufactured by the acid-bessemer process

A. 0.20%
B. 0.10%
C. 0.25%
D. 0.35%

A

D

54
Q

What is the percentage of Contract Price Allowed if the Deficiency in Strength of Concrete Specimens is 15 to less than 20?

A. 70%
B. 60%
C. 85%
D. 80%

A

B

55
Q

What is the percentage of Contract Price per lot Allowed if the deficiency in the average thickness per lot is 11 - 15mm?

A. 70%
B. 60%
C. 85%
D. 80%

A

C

56
Q

What is the percentage of contract price per lot allowed if the deficiency in the average thickness per lot is 16 - 20mm?

A. 70%
B. 60%
C. 85%
D. 80%

A

A

57
Q

What is Item 712?

A. Water
B. Admixture
C. Paint
D. Metal Pipe

A

A

58
Q

What is Item 708?

A. Water
B. Admixture
C. Paint
D. Metal Pipe

A

B

59
Q

What is Item 707?

A. Water
B. Admixture
C. Paint
D. Metal Pipe

A

D

60
Q

What is the minimum compressive strength of Blended Hydraulic Cement?

A. 20.7 MPa
B. 30 MPa
C. 25.0 MPa
D. 28 MPa

A

C

MATERIALS ENGINEERING (10 decks)

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