Construction Materials

71) Chemical formula for quick lime is

Discuss in Comment

CaCO3

72) The preparation of surface of stone to obtain plain edges or to obtain stones of required size and shape is known as

Discuss in Comment

dressing of stones

73) Spalling hammer is used for

Discuss in Comment

rough dressing of stones

74) Specific gravity for most of the building stones lies between

Discuss in Comment

2.5 to 3.0

75) Which of the following trees yields hard wood?

Discuss in Comment

shishum

76) Cross cut saw is used for

Discuss in Comment

cutting hard stones

77) In which of the following pairs both trees yield soft wood?

Discuss in Comment

chir and deodar

78) Which of the following timbers is suitable for making sports goods?

Discuss in Comment

mulberry

79) Crushing strength of a good building stone should be more than

Discuss in Comment

100MPa

80) The radial splits which are wider on the outside of the log and narrower towards the pith are known as

Discuss in Comment

starshakes

Subject Notes

Objective Box

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