Q. The curved swellings from the growth of layers or wounds left after branches are cut off in an irregular manner, are known as

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Q. Pick up the correct statement from the following:

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Q. The cracks which extend from bark towards the sap wood in the cross section of a tree, are called

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Q. Sea sand used in structures causes

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Q. The compound of Portland cement which reacts immediately with water and also sets first is

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Q. Refractory bricks resist

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Q. Pick up the correct statement from the following:

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Q. The rocks which are formed due to cooling of magma at a relatively shallow depth from the earth's surface are called

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Q. The base material for distemper, is

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Q. The thermosetting plastic

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Q. Pick up the synthetic resin from the following:

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Q. Pick up the non-inflammable plastic from the following:

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Q. The most commonly used synthetic abrasive is

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Q. For light and ornamental casting, the most unsuitable pig iron, is

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Q. Seasoning of timber is essential to remove

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Q. The melting point of silica is :

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Q. Good quality cement contains higher percentage of

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Q. Soundness of cement is tested by

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Q. The PVC doors and windows are preferred as they are

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Q. Based on its dry weight, a freshly felled tree may contain water

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