Concrete Technology Mock Test 10

10%

Question 1 of 10

1. The rate of creep rapidly ___________ with time.

Doesn’t affect

Increase

Decrease

Depends on the temperature

Question 1 of 10

Question 2 of 10

2. The exposure of conventional mixing in open bowl is about ___________ ppm in the breathing zone.

Question 2 of 10

Question 3 of 10

3. The loss in weight should not exceed ______ percent when tested with sodium sulphate and ______ percent with magnesium sulphate solution.

15, 10

18, 12

12, 18

10, 15

Question 3 of 10

Question 4 of 10

4. Powder epoxy is fusion bonded to bar at about _________0C temperature.

100

250

350

300

Question 4 of 10

Question 5 of 10

5. Concrete is not recommended to be placed at a temperature above _________^oC.

Question 5 of 10

Question 6 of 10

6. Which temperature avoids flammability?

120-150

60-150

100

Question 6 of 10

Question 7 of 10

7. IS 1199:1959 is for __________

Methods of samplingand analysis of concrete

Specification for standard sand for testing of cement

Specification for Portland-pozzolana cement: Part 2 Calcined clay based

Methods of test for pozzolanicmaterials

Question 7 of 10

Question 8 of 10

8. After vacuum mixing, the volumetric shrinkage can be raised from 3–5% to __________ % in different cements.

1-2

3-5

6-8

5-7

Question 8 of 10

Question 9 of 10

9. The use of crushed aggregates may results in 10 to 20% higher compressive strength.

False

True

Question 9 of 10

Question 10 of 10

10. In the soundness test a specimen of hardened cement paste is _______ for a fixed time.

Dry

Dipped in water

Boiled

Freeze

Question 10 of 10