SET D - DPWH

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