Concrete Technology Practice Test 8

1. IS code for Specification for Portland slag cement?

IS 455:1989

IS 269:1989

IS 383:197

IS 456:2000

2. What C138 test under the Standard ASTM test method?

Test Method for Slump of Hydraulic Cement Concrete

Test Method for Making and Curing Concrete Test Specimens in the Field

Test Method for Unit Weight, Yield, and Air Content (Gravimetric) of Concrete

Test Method for Compressive Strength of Cylindrical Specimen

3. What C143 test under the Standard ASTM test method?

Test Method for Compressive Strength of Cylindrical Specimen

Test Method for Making and Curing Concrete Test Specimens in the Field

Test Method for Slump of Hydraulic Cement Concrete

Test Method for Unit Weight, Yield, and Air Content (Gravimetric) of Concrete

4. The property of a material that resists penetration or indentation by means of abrasion or scratching is known as ____________

Strength

Stiffness

Toughness

Hardness

5. It opens the area of improvement for quality construction rationally based on the documents from ___________ projects.

Later

Future

6. According to IRC:15-2011, Minimum cement content for 4.5 N/mm² characteristic flexural strength for PPC shall _________

Shall not be less than 500 kg/m³

Shall not be less than 425 kg/m³

Shall not be less than 360 kg/m³

Shall not be less than 340 kg/m³

7. The lower the w/c ratio ___________ the strength of concrete.

Moderate

Higher

Poor

Lower

8. During radiography test, which region absorbs less radiation and transmits more?

High density region

Low and high density regions adsorb

Low density region

Low and high density regions absorb and transmit same amount of radiation

9. ___________ cost of maintenance of the structure __________ construction due to quality works.

Maximize, before

Maximize, after

Minimize, after

Minimize, before

10. According to IRC:15-2002 _______% Fly ash is required to be replaced with the total cementitious materials.