CHAPTER 2

Question 1

Scientific way of working out

Answer 1

Estimation

Question 2

Proposed work after completion

Answer 2

More than 5-10%

Question 3

Types of estimates

Answer 3

Rough
Detailed

Question 4

Studies of various aspects

Answer 4

Rough estimate

Question 5

Carefully and separately calculation

Answer 5

Detailed estimate

Question 6

Cost of construction = plinth area x plinth areabrate

Answer 6

Plinth area method

Question 7

More accurate than the other 2 methods

Answer 7

Cubical contents method

Question 8

Cost per person eg. Students hostel - cost per student

Answer 8

Unit base method

Question 9

Consisting of hard chemically inert

Answer 9

Concrete

Question 10

Used for paving and flooring

Answer 10

Plain concrete

Question 11

Embedded two materials

Answer 11

Reinforced concrete

Question 12

Bond between aggregates and reinforce

Answer 12

Cement

Question 13

Manufactured and used worldwide

Answer 13

Ordinary Portland cement

Question 14

For joining masonry

Answer 14

Mortar

Question 15

Finish to the walls

Answer 15

Plaster

Question 16

High resistance to different chemical assaults

Answer 16

Portland pozzolana cement

Question 17

Examples for Portland pozzolana cement

Answer 17

Marine structures
Sewage works
Bridges
Piers
Dams
Mass concrete works

Question 18

Rapid constructions

Answer 18

Rapid hardening cement

Question 19

To set cement fast and what percent

Answer 19

Extra rapid hardening cement
25%

Question 20

Like gravity dams

Answer 20

Low heat cement

Question 21

To resist sulfate attack

Answer 21

Sulfates resisting cement

Question 22

How many percent of soil or groundwater for sulfates resisting cement

Answer 22

0.2% - 0.3%

Question 23

Quick setting like underwater

Answer 23

Quick setting cement

Question 24

Grinding the clinker with 60% slag

Answer 24

Blast furnace slag cement

Question 25

Mixing calcining bauxite and lime like in workshop

Answer 25

High alumina cement

Question 26

Composition Percent of cement
Lime
Silica
Alumina
Calcium sulphate
Iron oxide
Magnesia
Sulphur
Alcalies

Answer 26

62
22
5
4
3
2
1
1

Question 27

Inert granular materials

Answer 27

Aggregates

Question 28

Size less than 4.75

Answer 28

Fine aggregates

Question 29

Irregular and granular materials like sand gravel

Answer 29

Coarse aggregates

Question 30

Proportion of concrete components

Answer 30

Concrete mix ratios

Question 31

Art and craft of building

Answer 31

Masonry

Question 32

Block made of concrete that has hallow spaces

Answer 32

CHB concrete hallow blocks

Question 33

15 - 70 cm

Answer 33

Load bearing

Question 34

7 - 10

Answer 34

Non bearing block

Question 35

Mixture of cement sand and water

Answer 35

Cement mortar

Question 36

Rule of thumb

Answer 36

0.5 in

Question 37

Covering rough walls

Answer 37

Plastering

Question 38

bent at the column

Answer 38

Bend length

Question 39

fibrous substance

Answer 39

Wood

Question 40

capable of insulating heat

Answer 40

Wood

Question 41

Growth outside

Answer 41

Exogenous wood

Question 42

Growth inside

Answer 42

Endogenous wood

Question 43

Softwood

Answer 43

Hardwood

Question 44

Tree ring dating

Answer 44

Timber dating

Question 45

Processed wood products

Answer 45

Lumber

Question 46

Properties and characteristics

Answer 46

Strength and durability
Moisture content and dimensional stability

Question 47

Coniferous trees

Answer 47

Softwood lumber

Question 48

Deciduous

Answer 48

Hardwood lumber

Question 49

Manufactured wood products

Answer 49

Engineered wood products

Question 50

Made by layering thin veneers

Answer 50

Oriented strand board