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

View solution

Q. Sea sand used in structures causes

View solution

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

View solution

Q. Refractory bricks resist

View solution

Q. Pick up the correct statement from the following:

View solution

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

View solution

Q. The base material for distemper, is

View solution

Q. The thermosetting plastic

View solution

Q. Pick up the synthetic resin from the following:

View solution

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

View solution

Q. The most commonly used synthetic abrasive is

View solution

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

View solution

Q. Seasoning of timber is essential to remove

View solution

Q. The melting point of silica is :

View solution

Q. Good quality cement contains higher percentage of

View solution

Q. Soundness of cement is tested by

View solution

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

View solution

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

View solution

Q. Forge pig may be converted to wrought iron by

View solution

Q. Upto a maximum of 72% of iron, is available in

View solution