Civil Engineering MCQs

Page No. 297

The process of mixing clay, water and other ingredients to make brick is known as______________?


akneading


bmoulding


c pugging


ddrying


View Answer kneading

Which of the following ingredients of the brick earth enables the brick to retain its shape ?


aalumina


b silica


ciron


dmagnesia


View Answer silica

Excess of silica in brick earth results in______________?


acracking and warping of bricks


b loss of cohesion


cenhancing the impermeability of bricks


dnone of the above


View Answer loss of cohesion

The nominal size of the modular brick is_______________?


a190 mm x 90mmx 80 mm


b190 mm x 190 mm x 90 mm


c200 mm x 100 mm x 100 mm


d200 mm x 200 mm x 100 mm



The percentage of alumina in a good brick earth lies between________________?


a5 to 10%


b20 to 30%


c50 to 60%


d70 to 80%


View Answer 20 to 30%

Percentage of silica in a good brick earth lies between_______________?


a5 to 10%


b 20 to 30%


c50 to 60%


d70 to 80%


View Answer 50 to 60%

Excess of alumina in brick earth makes the brick______________?


aimpermeable


bbrittle and weak


cto lose cohesion


dto crack and warp on drying



The age of a tree can be known by examining_________________?


acambium layer


bannular rings


cmedullary rays


dheart wood


View Answer annular rings

D. 35% Crushing strength of a first class brick should not be less than_____________?


a3.5 N/mm2


b7.0 N/mm2


c10.5 N/mm2


d14.0 N/mm2


View Answer 10.5 N/mm2

The practical limit of moisture content achieved in air drying of timber is________________?


a5%


b15%


c25%


d35%


View Answer 15%

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