Sandstone is a (i) Sedimentary rock (ii) Aqueous rock (iii) Siliceous rock Only (i) Both (i) and (ii) Both (i) and (iii) All (i), (ii) and (iii) TRUE ANSWER : ? YOUR ANSWER : ?
The lime which contains mainly calcium oxide and slacks with water, is Quick lime Hydraulic lime Poor lime Fat lime TRUE ANSWER : ? YOUR ANSWER : ?
Rapid hardening cement attains early strength due to Lesser proportion of lime grounded finer than normal cement Lesser proportion of lime grounded coarser than normal cement Excess percentage of gypsum Larger proportion of lime grounded finer than normal cement TRUE ANSWER : ? YOUR ANSWER : ?
For sanitary pipes and chemical stonewares, None of these Opaque glazing is used Lead glazing is used Salt glazing is used TRUE ANSWER : ? YOUR ANSWER : ?
The main function of alumina in brick earth is To prevent shrinkage To make the brick impermeable To impart plasticity To make the brick durable TRUE ANSWER : ? YOUR ANSWER : ?
For making fly-ash building bricks, the following mix of fly-ash, sand and lime, is 70 : 20 : 10 80 : 13 : 7 None of these 60 : 35 : 5 TRUE ANSWER : ? YOUR ANSWER : ?
Good quality cement contains higher percentage of Tri-calcium silicate Di-calcium silicate Tri-calcium aluminate Tetra calcium alumino ferrite TRUE ANSWER : ? YOUR ANSWER : ?
In order of increasing percentage of silica, the correct sequence is Sandy clay, calcareous clay, pure clay None of these Pure clay, sandy clay, calcareous clay Calcareous clay, pure clay, sandy clay TRUE ANSWER : ? YOUR ANSWER : ?
Bullet proof glass is made of thick glass sheet sandwiched by a layer of Chromium plate Stainless steel High test plastic Steel TRUE ANSWER : ? YOUR ANSWER : ?
Seasoning of timber is done for Decreasing moisture content Increasing moisture content None to these Increasing strength of timber TRUE ANSWER : ? YOUR ANSWER : ?