39.

40.

41.

42.

48.

44.

45.

46.

47.

One of the main demerits of using Lime mortar is that :

(ಗ) itis not durable (B) it does not set quickly

(C) it swells (D) it has plastieity
Grading of aggregates in a conerete mix is mainly essential to achieve :

(A) Adequate workability (B) Higher density

(C) Reduction in voids (D) Better durability

Which of the following statements is not correct :
(A) Seasoning of timber increases the strength
(B) Seasoning of timber increases the life
(C) Seasoning of timber results in dimensional instability
(D) Seasoning of timber reduces the weight

Choose the correct combination :

1. Retarder 7. Fly Ash

2. Accelerator Q. Superplasticizer

8. Pozzolana R. Gypsum

4. Workability 8. Calcium chloride

(^) 1-R,2-S,3-P,4Q B) 1-S,2-R,3-P,4Q

0 18. 2-7, 8-8, 46 യ 18. 2-8, 8-൫, 427
Deformation in conerete due to sustained loading is :

(A) Shrinkage (B) Creep

(C) Segregation (D) Bleeding

The foundation provided below a heavily loaded steel column on a soil of low bearing
capacity is :

(^) Isolated column footing (B) Grillage foundation
(ಲ) Raft foundation (D) Strip footing
A bond in which both header and stretcher come in the same course is :
(^) English bond (B) Raking bond
(ಲ) Zigzagbond (D) Flemish bond
Which of the following does not belong to the class ‘shell roof” :
(A) Dome (B) Barrel vault
(C) Warped surface (D) Flat slab

Decoupling of the superstructure from substructure resting on a shaking ground is
called :

(A) Base isolation (B) Damping

(C) Shock absorption (D) Retrofitting

013/2020 8 A