Civil Engineering Questions And Answers :: Building Materials And Construction: part2

Civil Engineering : Building Materials And Construction QUESTIONS AND ANSWERS :: part2 : 16 to 20

Following Civil Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2021 and IES 2021 examinations :

16.The main function of alumina in brick earth is

to impart plasticity
to make the brick durable
to prevent shrinkage
to make the brick impermeable

17.Crushing strength of a first class brick should not be less than

3.5 N/mm2
7.0 N/mm2
10.5 N/mm2
14.0 N/mm2

18.In which of the following pairs both trees yield soft wood?

deodar and shishum
chir and sal
sal and teak
chir and deodar

19.Which of the following pairs gives a correct combination of the useful and harmful constituents respectively of a good brick earth ?

lime stone and alumina
silica and alkalies
alumina and iron
alkalies and magnesium

20.First class timber has an average life of

less than one year
1 to 5 years
5 to 10 years
more than 10 years

More Building Materials And Construction QUESTIONS AND ANSWERS available in next pages

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