WorksheetsSET D - DPWH
Total questions: 28
Worksheet time: 14mins
How many pieces of standard-size concrete hollow blocks (CHB) are required for one square meter of a CHB wall?
12
12.5
13 (correct)
13.5
Bearing capacity tests shall be conducted at specified locations in the plans to determine:
Check pile length
Check the actual bearing capacity (correct)
Check the actual volume
NOTA
What is the minimum compressive strength of concrete before tensioning the prestressing reinforcement?
22 MPa
25 MPa
28 MPa (correct)
30 MPa
Forms for paving concrete shall remain in place undisturbed for not less than how many hours after concrete pouring?
12 hours
16 hours
24 hours (correct)
30 hours
Which of the following statements is/are true for temporary pavement markings in road works?
III. Reflective pavement marking studs may also be used with changed markings.
a) I only
b) II only
II. Lane markings may be modified, but previous markings should be removed.
I. Temporary pavement markings may guide users through a worksite.
Which of the following statements is/are true regarding traffic controllers on road construction work areas?
a) I only
b) II only
II. Traffic controllers may control traffic while seated.
I. Traffic controllers should stand approximately 50 meters in advance of the work area.
III. Traffic controllers should be visible, clear of the traveled path, and able to view both the worksite and oncoming traffic.
In road construction, which of the following would NOT require flagmen for traffic control?
Where one lane of a two-way road or bridge is closed
Where distance to the work site is limited
Where traffic is directed through red traffic signals (correct)
Where construction machinery regularly enters or closes a road
The detailed rules for processes and practices utilized on specific construction sites, including penalties for violations, are referred to as:
Occupational Safety and Health Standard
Construction Safety and Health Standard
Occupational Safety and Health Program
Construction Safety and Health Program (correct)
Sawing of joints shall commence as soon as the concrete has hardened sufficiently to permit sawing without excessive raveling.
1/24
2/24
3/24
4/24 (correct)
Transverse construction joints shall be constructed when there is an interruption of more than how many minutes in concreting operations?
30 minutes (correct)
45 minutes
60 minutes
90 minutes
The transverse joint shall be constructed within what distance?
1 m
1.5 m (correct)
2 m
2.5 m
In constructing precast railings, moist tampered mortar precast members shall be removed from molds as soon as practicable and kept damp for a period of how many days?
6 days
7 days
10 days (correct)
14 days
Termination of the contract for (DGCS) infrastructure projects may occur when the contractor has incurred a negative slippage of 15% or more, or when the contract has expired and has a negative slippage of 10% or more. This is referred to as:
Liquidated damages
Termination for insolvency
Termination for default (correct)
Termination for convenience
Which type of survey is undertaken for a proposed project land?
Bridge site survey
Highway location survey
Parcellary survey (correct)
Right-of-way survey
What represents the overall structural requirement of a flexible pavement needed to sustain the design traffic loading?
CBR
Reliability
Serviceability
Structural numbers (correct)
Asphalt pavement cores shall be accepted if the deficiency in density is not more than:
2% (correct)
3%
4%
5%
The length of a ramp should not exceed 6.0 m if the gradient is __. For longer ramps, landings not less than __ should be provided.
1.0 m & 1:10
1.1 m & 1:10
1.2 m & 1:12
1.5 m & 1:12 (correct)
If the design thickness of the aggregate sub-base course is 200 mm, in how many layers may the material be spread and compacted?
1 layer (correct)
2 layers
3 layers
4 layers
What is the minimum design life span of a bridge?
20 years
30 years
40 years
50 years (correct)
Transverse reinforcement in yielding performance of reinforced concrete columns of bridges prevents which mode of failure?
Buckling of main reinforcement
Axial failure (correct)
Flexural yielding failure
Shear failure
A fixed time constraint between two events is represented by hairpin curve arrows. This is called:
Lead time
Lag time
Critical path (correct)
Measuring
When monitoring the construction of a revetment, which of the following should have the highest elevation?
Head wall (correct)
Maximum expected flood level
Existing bank level
Flood wall
What is the minimum thickness of bedding material beneath a concrete pipe?
75 mm
100 mm (correct)
125 mm
150 mm
What is the most common pile hammer used in the Philippines?
Jackhammer
Drop hammer (correct)
Diesel hammer
NOTA
Pile integrity tests shall be conducted on at least what percentage of the total number of bored piles?
35%
40%
45%
50% (correct)
What is the standard size of CHB?
15 x 30 cm
20 x 30 cm
20 x 40 cm (correct)
15 x 40 cm
What is the design life span for flood design structures like culverts and roads?
10 years (correct)
15 years
20 years
25 years
Mortar for grouted riprap shall consist of sand, gravel, cement, and water in a ratio of:
1:2
1:3 (correct)
1:4
1:5
