You may be Loooking for

Notifications
Mark All As Read

You have to be logged in for this features
Just now

View All
Guest

Please log in

Login

IOE-BOOSTER

IOE

Questions
Todays Tutorials
Previous Tutorials
Asked Questions
Learning By playing
GAMES
Exams From
Todays Pick Studied question yet
Exam Results
Results
My Plans
My Plans

Ask Question

Ask Mcqs

Guest
You need to login to ask any Questions from chapter Concrete-Mix-Design of Concrete-Technology

Chapter:

Concrete-Mix-Design

1. Determine ___ eir from strength considerations or from durability considerations.

Slump value The maximum size of aggregate The amount of mixing water The minimum water-cement ratio

The minimum water-cement ratio

Determine minimum water-cement ratio eir from strength considerations or from durability considerations.

Hint Answer

2. According to IRC:15-2011, Characteristic Flexural Strength at 28 days is ________

4 N/mm² 4.5 N/mm² 5 N/mm² 3.5 N/mm²

4.5 N/mm²

According to IRC:15-2011, Characteristic Flexural Strength at 28 days is 4.5 N/mm² and rest all values don?t stand anywhere.

Hint Answer

3. According to IRC:15-2011, Minimum cement content for 4.5 N/mm² characteristic flexural strength for OPC + fly ash mix OPC shall ________

Shall not be less than 360 kg/m³ Shall not be less than 425 kg/m³ Shall not be less than 340 kg/m³ Shall not be less than 500 kg/m³

Shall not be less than 340 kg/m³

According to IRC:15-2011, Minimum cement content for 4.5 N/mm² characteristic flexural strength for OPC + fly ash mix OPC shall not be less than 340 kg/m³ and for opc it shouldn?t be less than 360 kg/m³.

Hint Answer

4. In which type of test capillary action principle is used?

Probe test Bend liquid test Dye penetrant test Torsion test

Dye penetrant test

Dye penetrant test uses capillary action principle to detect surface discontinuities. In this method liquid is applied on a metallic surface and it gets entered into cracks which are open.

Hint Answer

5. IS 650:1991 is for ________

Specification for standard sand for testing of cement Methods of sampling and analysis of concrete Specification for pozzolana cement Methods of test for pozzolanic materials

Specification for standard sand for testing of cement

IS 650:1991 Specification for standard sand for testing of cement to need of civil engineering.

Hint Answer

6. According to IRC:15-2011, Maximum nominal size of aggregates is ____

20 mm crushed aggregates 31.5 mm crushed aggregates 25 mm crushed aggregates 30.5 mm crushed aggregates

31.5 mm crushed aggregates

According to IRC:15-2011, maximum nominal size of aggregates is 31.5 mm crushed aggregates and 20mm was according to 2002.

Hint Answer

7. What is approx. mix proportion for M10?

1:3:6 1:2:4 1:1.5:3 1:1:2

1:3:6

According to IS 456-2000 code, approximate value of mix proportion for grade M10 is 1:3:6.

Hint Answer

8. What is approx. mix proportion for M15?

1:3:6 1:2:4 1:1.5:3 1:1:2

1:2:4

According to IS 456-2000 code, approximate value of mix proportion for grade M15 is 1:2:4.

Hint Answer

9. Maximum size of aggregates should not be larger than ___________

1/3 the thickness of a slab 1/2 the thickness of a slab 1/1 the thickness of a slab 1/4 the thickness of a slab

1/3 the thickness of a slab

Maximum size of aggregates should not be larger than 1/3 thickness of a slab.

Hint Answer

10. The loss in weight should not exceed % when tested with Na₂SO₄ and % with MgSO₄ solution.

12, 18 18, 12 10, 15 15, 10

12, 18

The loss in weight should not exceed 12 percent when tested with sodium sulphate and 18 percent with magnesium sulphate solution.

Hint Answer

Nexttt

All Chapters

View all Chapter and number of question available From each chapter from Concrete-Technology

Cement

Types of Cement and Testing of Cement

Types of Cement and Testing of Cement

Aggregates and Testing of Aggregates

Aggregates and Testing of Aggregates

Water

Admixtures and Construction Chemicals

Admixtures and Construction Chemicals

Fresh Concrete

Strength of Concrete

Strength of Concrete

Elasticity, Creep and Shrinkage

Elasticity, Creep and Shrinkage

Durability of Concrete

Durability of Concrete

Testing of Concrete

Testing of Concrete

Concrete Mix Design

Concrete Mix Design

Quality Control

Quality Control

Special Concrete and Concreting Methods

Special Concrete and Concreting Methods

IS Codes Related to Cement and Concrete

IS Codes Related to Cement and Concrete

Repair Technology for Concrete Structures

Repair Technology for Concrete Structures

Concrete Technology Important Questions

Concrete Technology Important Questions

Topics

This Chapter Concrete-Mix-Design consists of the following topics

Concrete Mix Design

Determine ___ eir from strength considerations or from durability considerations.

According to IRC:15-2011, Characteristic Flexural Strength at 28 days is ________

According to IRC:15-2011, Minimum cement content for 4.5 N/mm² characteristic flexural strength for OPC + fly ash mix OPC shall ________

In which type of test capillary action principle is used?

IS 650:1991 is for ________

According to IRC:15-2011, Maximum nominal size of aggregates is ____

What is approx. mix proportion for M10?

What is approx. mix proportion for M15?

Maximum size of aggregates should not be larger than ___________

The loss in weight should not exceed % when tested with Na₂SO₄ and % with MgSO₄ solution.

Info Message