Question 1

Most of the stones possess the specific gravity in the range of
A)1.2 - 1.6
B)1.6 - 2.0
C)2.4 - 2.8
D)3.0 - 4.0

Accepted Answer

Most stones have a specific gravity in the range of 2.4 to 2.8, which reflects their density compared to water (specific gravity of 1).

Question 2

Limestone used for manufacture of cement is
A)kankar
B)magnesium limestone
C)compact limestone
D)granular limestone

Accepted Answer

Limestone used for the manufacture of cement is kankar (A). Kankar is a type of nodular limestone found in India and other parts of the world. It is a good source of calcium carbonate, which is the main ingredient in cement.

Question 3

Which of the following has the highest crushing strength?
A)granite
B)gneiss
C)basalt
D)trap

Accepted Answer

D

Question 4

Which of the following stone has the highest resistance to fire?
A)granite
B)limestone
C)sandstone
D)argillaceous material

Accepted Answer

The answer of Which of the following stone has the...

Question 5

Smith's test on stone is to check
A)toughness
B)hardness
C)compressive strength
D)presence of muddy substance

Accepted Answer

Smith's test on stone is specifically designed to check for the presence of muddy substances. This test helps in evaluating the cleanliness and quality of the stone, which is crucial for ensuring its durability and suitability for construction purposes.

Question 6

Los Angeles testing machine is used to find the following. In stone
A)surface wear
B)hardness
C)compressive strength
D)presence of mud

Accepted Answer

The Los Angeles testing machine is primarily used to determine the resistance of aggregates to fragmentation or abrasion, which is a measure of surface wear.

Question 7

Impact value of stone for road work specified are
A)wearing coat 30%
B)bituminous macadam 35%
C)water bound macadam 40%
D)all the above

Accepted Answer

The impact value of stone for road work varies depending on the type of construction. The specified values for wearing coat, bituminous macadam, and water bound macadam are all correct, making all the options valid.

Question 8

Deterioration of stones takes place due to
A)temperature variation
B)freezing and thawing
C)rainwater
D)all of the above

Accepted Answer

Temperature variation, freezing and thawing, and rainwater all contribute to the deterioration of stones by causing physical and chemical changes.

Question 9

Which one of the follo ing is not a preservative of stone
A)coal tar
B)paraffin
C)linseed oil
D)ASCU

Accepted Answer

ASCU is not a preservative for stone; it is a type of copper compound used in agriculture.

Question 10

After felling and separating branches the tree is known as
A)log
B)converted timber
C)rough timber
D)none of the above

Accepted Answer

The answer of After felling and separating branches the tree...

Question 11

Which one of the following does not belong to exogenous tree
A)deodar
B)pine
C)mahogany
D)bamboo

Accepted Answer

The answer of Which one of the following does not...

Question 12

Which one of the following dose not belong to endogenous trees
A)teak
B)coconut
C)bamboo
D)cane

Accepted Answer

Bamboo is a grass, not a tree.

Question 13

On the basis of durability test, Forest Research Institute of India, Dehradun, a tree is highly durable if its average life is more than
A)5 years
B)10 years
C)15 years
D)20 years

Accepted Answer

The answer of On the basis of durability test, Forest...

Question 14

The trees, of which leaves fall in autumn and new ones appear in spring are classified as
A)coniferous trees
B)deciduous trees
C)endogenous trees
D)none of the above

Accepted Answer

Deciduous trees are characterized by the shedding of their leaves in autumn and the growth of new leaves in spring. This is a natural adaptation to seasonal changes in climate.

Question 15

The oldest part of exogenous tree is
A)pith
B)heartwood
C)sapwood
D)cambium layer

Accepted Answer

The oldest part of an exogenous tree is the pith, which is the central core of the stem.

Question 16

Age of exogenous tree can be judged from
A)medullary rays
B)annual rings
C)cambium layer
D)inner bark

Accepted Answer

The age of an exogenous tree (a tree that grows by adding layers to its outer surface) can be determined by counting the annual rings. Each ring typically represents one year of growth, making it possible to estimate the age of the tree.

Question 17

The layer between the dark and sapwood which is yet to be converted into wood is known as
A)pith
B)heartwood
C)softwood
D)cambium layer

Accepted Answer

The cambium layer is the part of a tree where growth occurs and is responsible for producing both the sapwood (the living, outermost portion of a tree's wood) and the heartwood (the non-living, central wood). It is located between the bark and the wood, making it the correct answer.

Question 18

Which one of the following is softwood
A)deodar
B)teak
C)sal
D)mahogany

Accepted Answer

Deodar is a type of cedar, which is classified as softwood. Softwoods come from coniferous trees, which have needles and cones.

Question 19

On the basis of availability, timber is classified as
A)I. II, III Class
B)grade I, II, and III
C)A, B, C Class
D), Y, Z Class

Accepted Answer

The answer of On the basis of availability, timber is...

Question 20

Seasoning makes timber
A)durable
B)light, strong and stable
C)resistant to fungi and termites
D)all of the above

Accepted Answer

Seasoning reduces moisture content in timber, making it more durable, light, strong, stable, and resistant to fungi and termites.

Quiz 2: Stones and Trees

Most of the stones possess the specific gravity in the range of

Limestone used for manufacture of cement is

Which of the following has the highest crushing strength?

Which of the following stone has the highest resistance to fire?

Smith's test on stone is to check

Los Angeles testing machine is used to find the following. In stone

Impact value of stone for road work specified are

Deterioration of stones takes place due to

Which one of the follo ing is not a preservative of stone

After felling and separating branches the tree is known as

Which one of the following does not belong to exogenous tree

Which one of the following dose not belong to endogenous trees

On the basis of durability test, Forest Research Institute of India, Dehradun, a tree is highly durable if its average life is more than

The trees, of which leaves fall in autumn and new ones appear in spring are classified as

The oldest part of exogenous tree is

Age of exogenous tree can be judged from

The layer between the dark and sapwood which is yet to be converted into wood is known as

Which one of the following is softwood

On the basis of availability, timber is classified as

Seasoning makes timber