One of the main demerits of using Lime mortar is that:

Salt present in brick earth may cause:

What is the problem with using fly ash bricks?

Which of the following rocks are hard and durable?

A 1st class brick immersed in water for 24 hours, should not absorb water (by weight) more than:

A triangular portion half width with full length is cut to obtain...................................

Which of the following is not a metamorphic change?

What is the harmful effect of presents of alkali in brick earth on bricks?

Smith's test of stones is performed to find out:

The cement becomes unsound by the presence of excess:

The mortar in which both cement and lime are used as binding materials is called:

A fine aggregate is one whose particles are of size:

Vicat's apparatus is used to perform....................... Test

Heating of limestone to obtain quick lime is:

Bricks containing relatively large proportion of solute salts are liable to become discolored by formation of a white deposit known as:

The specific surface area of a Portland cement shall not be less than:

The lime which is composed of 95% of calcium oxide is:

The bearing of a lintel at its ends should be:

Efflorescence is seen on the bricks which are made from the soil containing too much of:

The test under a steady load over a long period of time is called:

The frog of the brick in a brick masonry is generally kept on:

Strength and quality of cement primarily depend upon:

Addition of pozzolana to cement causes all the following except:

Final setting of ordinary Portland cement is:

Hydraulic lime:

A brick which is half as wide as a full brick, is called:

The minimum crushing strength of a first class brick is:

Which of the following bricks are expected to have highest percentage of water absorption by its dry weight?

The compound formed within about 24 hours after the addition of water to cement is:

Which of the following are the three different grades of cement according to BIS?

The bricks arranged projecting in alternate courses for the purpose of bonding future work is called:

Cement grouted pavement is classified as:

An aquifer that is confined at the bottom but not at the top is known as:

By which of the following tests, fineness of cement can be determined?

Who established a relationship between water-cement ratio and strength of concrete?

The properly dressed stone Work is called

A projected stone which is usually provide to serve as a support for trusses and beam is known as:

Marble is classified as

The percentage of silica in cement is

Texture of sandstone

Half width full length

Standard size of brick

Low heat cement is used in

Four bag of cement will require__________ litres of water.

The type of cement generally used for the construction of road pavements to is

In low heat cement the compound which is kept to the minimum is

For rapid hardening cement minimum cube strength in a work test is taken as strength at

Finer the cement more is the

The expansion of Portland cement is caused by

The specific surface (in sq.cm/gm) of a good Portland cement should not be less than