The water–cement ratio is defined as the ratio of:

Increase in water–cement ratio generally leads to:

The term “grade of concrete” indicates:

Which grade of concrete is most suitable for RCC beams and slabs?

Which admixture should be used for concreting in hot weather to delay setting?

High strength concrete differs from normal strength concrete mainly in terms of:

Self Compacting Concrete is preferred in congested reinforcement because it:

Controlled concrete is superior to ordinary concrete because:

Which method is most suitable for repairing damaged RCC surfaces with minimum formwork?

PART – B: Fill in the Blanks (10 × 1 = 10 Marks) — The binding material in concrete is ________.

PART – B: Fill in the Blanks (10 × 1 = 10 Marks) — Concrete having steel or glass fibers is called ________ concrete.

PART – B: Fill in the Blanks (10 × 1 = 10 Marks) — Lower water–cement ratio generally produces ________ strength of concrete.

PART – B: Fill in the Blanks (10 × 1 = 10 Marks) — FaL-G concrete mainly uses fly ash and ________.

PART – B: Fill in the Blanks (10 × 1 = 10 Marks) — The minimum grade of concrete recommended for RCC work is ________.

PART – B: Fill in the Blanks (10 × 1 = 10 Marks) — Concrete placed below water without dewatering is called ________ concreting.

PART – B: Fill in the Blanks (10 × 1 = 10 Marks) — Variability of concrete strength is affected by quality of materials and ________.

PART – B: Fill in the Blanks (10 × 1 = 10 Marks) — Lightweight concrete is preferred mainly to reduce ________ of the structure.

PART – B: Fill in the Blanks (10 × 1 = 10 Marks) — Expansion joints are provided in concrete structures to avoid ________ stresses.

PART – B: Fill in the Blanks (10 × 1 = 10 Marks) — Concrete mix design as per IS method aims to achieve strength, durability and ________.