Paints with white lead base are suitable for painting of

Paints with white lead base are suitable for painting of 

Answer: wood work

With increase in moisture content, the bulking of sand

With increase in moisture content, the bulking of sand

Answer: first increases to a certain maximum value and then decreases

The slump recommended for mass concrete is about

The slump recommended for mass concrete is about 

Answer: 25mm to 50mm

Le-Chatelier's device is used for determining the

Le-Chatelier's device is used for determining the 

Answer: soundness of cement

Quick lime is

Quick lime is 

Answer: calcium oxide

Glazing is used to make earthenware

Glazing is used to make earthenware 

Answer: impervious

No. of bricks required for one cubic metre of brick masonry is

No. of bricks required for one cubic metre of brick masonry is 

Answer: 500

Which of the following bricks are used for lining of furnaces?

Which of the following bricks are used for lining of furnaces? 

Answer: refractory bricks

First class brick when immersed in cold water for 24 hours should not absorb water more than

First class brick when immersed in cold water for 24 hours should not absorb water more than 

Answer: 20%

The age of a tree can be known by examining

The age of a tree can be known by examining 

Answer: annular rings

In which of the following directions, the strength of timber is maximum?

In which of the following directions, the strength of timber is maximum? 

Answer: parallel to grains

Percentage of carbon content in mild steel is less than

Percentage of carbon content in mild steel is less than 

Answer: 0.25

Plywood has the advantage of

Plywood has the advantage of 

Answer: same tensile strength in all directions

Specific gravity for most of the building stones lies between

Specific gravity for most of the building stones lies between 

Answer: 2.5 to 3.0

Which type of cement is suitable for use in massive concrete structures such as large dams

Which type of cement is suitable for use in massive concrete structures such as large dams 

Answer: low heat cement

Predominant constituent which is responsible for strength in granite is

Predominant constituent which is responsible for strength in granite is 

Answer: quartz

Which of the following metamorphic rocks has the most weather resisting characteristics?

Which of the following metamorphic rocks has the most weather resisting characteristics? 

Answer: quartzite

Addition of pozzolana to ordinary Portland cement increases

Addition of pozzolana to ordinary Portland cement increases 

Answer: shrinkage

First class timber has an average life of

First class timber has an average life of 

Answer: more than 10 years

The normal consistency of ordinary Portland cement is about

The normal consistency of ordinary Portland cement is about 

Answer: 30%