Concrete Technology MCQs

Question 1

The mixture of different ingredients of cement, is burnt at

Accepted Answer

1400?C

Answer

1000?C

Answer

1200?C

Answer

1600?C

Question 2

The cement whose strength is a little lower than the ordinary cement during the first three months but attains afterwards the same strength, is known as

Accepted Answer

low-heat Portland cement

Answer

rapid hardening Portland cement

Answer

Portland blast slag cement

Answer

Portland pozzolana cement

Question 3

For construction of structures in sea water, the cement generally preferred to, is

Accepted Answer

Portland-pozzolana cement

Answer

quick setting cement

Answer

low heat Portland cement

Answer

rapid hardening cement

Question 4

For quality control of Portland cement, the test essentially done is

Accepted Answer

all the above

Answer

setting time

Answer

soundness

Answer

tensile strength

Question 5

Vicat apparatus is used for

Accepted Answer

consistency test

Answer

fineness test

Answer

test for setting time

Answer

test for tensile strength

Question 6

The cement becomes useless if its absorbed moisture content exceeds

Accepted Answer

5%

Answer

1%

Answer

2%

Answer

3%

Question 7

The size of fine aggregates does not exceed

Accepted Answer

4 75 mm

Answer

275 min

Answer

300 mm

Answer

375 mm

Question 8

Mloo grade of concrete approximates

Accepted Answer

1: 3: 6 mix

Answer

1 :1 :2 mix

Answer

1: 2: 4 mix

Answer

1:15 : 3 mix

Question 9

M150 grade of concrete approximates

Accepted Answer

1: 15 : 3 mix

Answer

1: 3: 6 mix

Answer

1: 2: 4 mix

Answer

1: 1 : 2 mix