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31
Seasoning is
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Answer: Option A
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32
The variety of pig iron used for the manufacture of steel by Bessemer process, is
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Answer: Option A
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33
Seasoning of timber is essential to remove
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Answer: Option B
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34
The preparation of surface of stone to obtain plain edges or to obtain stones of required size and shape is known as
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Answer: Option D
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35
Shingle is
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Answer: Option C
Solution:
Shingle is water-bound pebble found usually along beaches and natural water bodies. It is used as a roofing material, surfacing of the boundary walls, filling, etc.

Option A: A type of roofing material made from wood
Shingle can refer to a type of roofing material made from wood, often cedar or redwood. These wooden shingles are used for roofing and siding.

Option B: A type of roofing material made from asphalt
Shingle can also refer to a type of roofing material made from asphalt. Asphalt shingles are commonly used for roofing in many buildings.

Option C: Small, flat, rectangular pieces of material used for roofing or siding
This option accurately describes shingle. Shingle is typically small, flat, rectangular pieces of material used for roofing or siding.

Option D: A type of sedimentary rock commonly used in construction
This option does not accurately describe shingle. Shingle is a type of construction material used for roofing or siding and is not typically associated with sedimentary rock.

The correct answer is Option C: Small, flat, rectangular pieces of material used for roofing or siding.
36
Brass is an alloy of
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Answer: Option A
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37
The most fire resistant paints are:
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Answer: Option C
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38
Assertion A : Pure lime takes a long time to develop adequate strength.
Reason R : Pure lime has slow hardening characteristics.
Select your answer according to the coding system given below:
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Answer: Option A
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39
Assertion A : Normally turpentine oil is recommended as thinner for indoor painting.
Reason R : Turpentine oil is costlier than other thinners.
Select your answer according to the coding system given below:
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Answer: Option B
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40
Assertion A : Paints with white lead base are not recommended for painting of iron works.
Reason R : Paints with white lead base do not check rusting of iron.
Select your answer according to the coding system given below:
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Answer: Option A
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