Model Question Papers with Answers

MODEL QUESTION PAPERS

Model Question Paper - 1

CE3302-CONSTRUCTION MATERIALS AND TECHNOLOGY

 

Answer ALL Questions

1. Name some of the common tests conducted on stone.

Following are different tests on conducted on building stones:

❖ Water absorption test

❖ Crushing strength test

❖ Impact test

❖ Abrasion test

❖ Acid test

2. Define "slaking of lime".

Slaking of lime is the process, which is the chemical combination of quick lime with water. It has got the tendency of absorbing carbonic acid from the atmosphere in presence of water. It is ordinary pure lime, in white powder form, available in market. Slacked lime is also known as hydrated lime.

3. Write about cup shake in timber.

Cup shakes are caused by the rupture of tissue in a circular direction. It is a curved crack, and it separates partly one annual ring from the other developing one due to non-uniform growth or due to excessive bending of a growing tree during a cyclonic weather. It may prove to be harmful if it covers only a portion of the ring.

4. What are geo synthetics?

Geo fabrics are also called geo synthetics or geotextiles. These are synthetic fabrics which are sufficiently durable to last a good length of time in soil environment used in geotechnical engineering.

5. What is a composite pile?

When the piles are made from more than one material they are known as composite pile. These piles are made from concrete and wood. These piles are used in those areas where the water table is up. These piles are used in such conditions just because concrete and wood both are good water absorbers

6. Distinguish between plastering and pointing.

The following are some of the differences between plastering and pointing

Plastering

It is applied on the entire wall surface

It gives smooth surface finish

Defective workmanship in masonry can be covered up by plastering

It acts as a base for white washing works

Pointing

It is done only at the exposed surface

It does not provide smooth surface

Well built masonry work can be shown by doing pointing work at the joints Further

finishing works  like white washing cannot be done

7. Write short notes on graders.

A grader, also commonly referred to as a road grader, a blade, a maintainer, or a motor grader, is a construction machine with a long blade used to create a flat surface. Graders are commonly used in the construction and maintenance of dirt roads and gravel roads. They are used to prepare the base course and to create a wide flat surface for the asphalt to be placed on.

8. Define derrick crane.

A derrick is a special type of crane in which the distance from the end of the jib to the pillar can be changed. The derrick cranes are of two types, namely Guy derrick and Stiff leg derrick. Guy derrick can be constructed up to 200 tonnes capacity. In stiff leg type derricks, the guy wires are replaced by trussed structure. This type of derricks is suitable for loads from 10 to 50 tonnes.

9. What is Construction Scheduling?

Construction scheduling can be defined as the process of listing all the activities to be carried out with the planned start and completion dates. It is an entire blueprint which shows how the project will be executed and the sequential relationship among the various activities or operations in a project so that work can be carried out in an orderly and effective manner.

10. How can you explain LOB?

Line of balance (LOB) is a scheduling method which is usually implied in projects that include repetitive activity. The balance scheduling method measures the cost, time, and project completion plan and ensures nothing falls behind the schedule. These type of schedules are very uncommon but are sometimes used when a construction project consists of highly repeatable and similar tasks. These are most commonly used for roadways, pipes, and other horizontal construction projects.

 

PART-B

11. (a) Explain in detail about different classification of Bricks.

Ans. Refer Section No: 1.8,

Page No.1.13

[OR]

(b) Discuss in detail about the various tests conducted on lime.

Ans. Refer Section No: 1.16,

Page No. 1.27

12. (a) Name some of the common market forms of timber and explain in detail.

Ans. Refer Section No: 2.1.17,

Page No. 2.17

[OR]

(b) Elaborate in detail fiber reinforced plastic.

Ans. Refer Section No: 2.10.2,

Page No. 2.47

13. (a) List the different types of bonds in brick masonry and explain with bazaini sketches.

Ans. Refer Section No: 3.3.1,

Page No. 3.11

[OR]

(b) Explain in detail about acoustic and sound insulation.

Ans. Refer Section No: 3.19,

Page No.3.69

14. (a) With neat sketches, explain in detail about the earth excavating equipments.

Ans. Refer Section No: 4.2,

Page No. 4.2

[OR]

(b) Explain in detail about the equipments needed for dewatering and pumping.

Ans. Refer Section No: 4.5,

15. (a) What are the different methods of scheduling? Explain in detail.

Page No.4.35

Ans. Refer Section No: 5.2.2,

Page No.5.9

 [OR]

(b) Explain in detail about CPM in network analysis.

Ans. Refer Section No: 5.3.5,

Page No.5.24

 

PART-C (1 x 15 = 15 Marks)

16. (a) Discuss in detail about different types of conveyors.

Ans. Refer Section No: 4.3,

Page No.4.15

(4)

[OR]

(b) A project has the following characteristics:

(i) Construct a PERT network.

(ii) Find the critical path and variance for each event.

Ans. Refer Example No.2,

Page No.5.39