Materials 2

100 Questions | By Matthewsdizon | Updated: Mar 20, 2022 | Attempts: 1182

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1.

__ test determines the amount of asphalt present in a bituminous mix
- A.
  
  Distillation
- B.
  
  Extraction
- C.
  
  Solubility
- D.
  
  Compression
2.

The softness and hardness of an asphaltic materials can be determined by ___ test
- A.
  
  Softening point
- B.
  
  Loss on heating
- C.
  
  Penetration
- D.
  
  Distillation
3.

The temperature of bituminous hot mix delivered in the project site should not be less than its __ temperature.
- A.
  
  Mixing
- B.
  
  Compaction
- C.
  
  Molding
- D.
  
  Spreading
4.

Resistance to deformation of bituminous mixture is measured by ___
- A.
  
  Flow index
- B.
  
  Index of retained strength
- C.
  
  Ductility test
- D.
  
  Extraction test
5.

The apparatus used in determining the grade of asphalt cement is
- A.
  
  Hydrometer
- B.
  
  Penetromanometer
- C.
  
  Petronmeter
- D.
  
  Penetrometer
6.

In an Immersion-Compression test, molding of specimen is done into ___ layers
- A.
  
  1
- B.
  
  2
- C.
  
  3
- D.
  
  4
7.

In Marshall Stability, molding of specimen is done into __ layer
- A.
  
  1
- B.
  
  2
- C.
  
  3
- D.
  
  4
8.

The actual cementing power in asphalt is called the __
- A.
  
  Petrolene
- B.
  
  Asphaltene
- C.
  
  Bitumen
- D.
  
  Resin
9.

An asphalt pavement needs sufficient ___ to avoid flushing or bleeding
- A.
  
  Compaction
- B.
  
  Air voids
- C.
  
  Binder
- D.
  
  Mineral filler
10.

A job-mix formula provides for close control of
- A.
  
  Asphalt content
- B.
  
  Aggregate gradation
- C.
  
  Temperature of asphalt, aggregate and mix
- D.
  
  All of the above
11.

The thinnest and most fluid grade of medium curing cutback asphalt is:
- A.
  
  MC-800
- B.
  
  MC-250
- C.
  
  MC-70
- D.
  
  MC-30
12.

The amount of asphalt in a typical asphalt emulsion is
- A.
  
  40%
- B.
  
  50%
- C.
  
  60%
- D.
  
  70%
13.

Another name for joint filler is
- A.
  
  Asphalt cement
- B.
  
  Cutback asphalt
- C.
  
  Mineral filler
- D.
  
  Blown asphalt
14.

The type of asphaltic material that is usually classified by its viscosity is
- A.
  
  Liquid asphalt
- B.
  
  Blown asphalt
- C.
  
  Rock asphalt
- D.
  
  Lake asphalt
15.

Item 310, bituminous surface course, hot laid provides an air voids between
- A.
  
  3-5%
- B.
  
  5-7%
- C.
  
  5-8%
- D.
  
  8-10%
16.

Emulsified asphalt that has a positive charge particle is usually classified
- A.
  
  Anionic
- B.
  
  Cationic
- C.
  
  Pozzolanic
- D.
  
  Ultrasonic
17.

The characteristics of a butuminous mix that indicates to disintegration is called
- A.
  
  Stability
- B.
  
  Flexibility
- C.
  
  Durability
- D.
  
  Integrity
18.

The coarse aggregate used in bituminous mix are those retained at sieve no.
- A.
  
  8
- B.
  
  10
- C.
  
  30
- D.
  
  200
19.

__ test compares the compressive strength of dry and wet specimen of bituminous mix
- A.
  
  Marshall stability
- B.
  
  Immersion-compression
- C.
  
  Extraction
- D.
  
  Bulk specific gravity
20.

In Item 310, bituminous surface course, hot laid requires 70% minimum of index of retained strength (IRS). In the immersion-compression test, the dry stability is about 900 psi. Based on the data, the wet stability be at least __ psi.
- A.
  
  270
- B.
  
  630
- C.
  
  1286
- D.
  
  830
21.

A compacted bituminous pavement shall have a minimum density of equal to or greater than __ %
- A.
  
  85
- B.
  
  90
- C.
  
  95
- D.
  
  100
22.

The rate of application of emulsified asphalt used as tack coat, should be within the range of __ liter/sq.m
- A.
  
  0.2-0.5
- B.
  
  0.2-0.7
- C.
  
  0.15-0.7
- D.
  
  1.0-2.0
23.

The type of asphaltic material that is being referred to by penetration grade is
- A.
  
  Emulsified asphalt
- B.
  
  Cutback asphalt
- C.
  
  Asphalt cement
- D.
  
  Mastic asphalt
24.

The service performance of an asphalt pavement is greatly influence by
- A.
  
  Grade of asphalt
- B.
  
  Quantity of asphalt
- C.
  
  A and b
- D.
  
  None of the above
25.

In bituminous mixture, aggregates account for 92%-95% of the weight of the mixture, while asphalt ( the binder of aggregates) accounts for __
- A.
  
  3-5%
- B.
  
  5-8%
- C.
  
  5-10%
- D.
  
  7-10%