Concrete Technology Mock Test 7

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Question 1 of 10

1. What is flexural strength?

The stress value representing the average flexural strength in the post peak region up to a specified deflection of L/n obtained when Pe,n is used in the equation of modulus of rupture

The load value representing the average load-carrying capacity in the post peak region up to a specified deflection of L/n

The stress value obtained when the peak load value is used in the equation of modulus of rupture

Value of the mean equivalent flexural strength normalized with respect to mean flexural strength

Question 1 of 10

Question 2 of 10

2. Depending on the degree of workability and placing condition determine the ___________

The amount of mixing water

Slump value

The minimum water-cement ratio

The maximum size of aggregate

Question 2 of 10

Question 3 of 10

3. The flexural strength (or modulus of rupture) is obtained for the first peak load, Pmax as _______________

Pmax/L/bd²

Pmax * L/bd

Pmax/Ld²

Pmax * L/bd²

Question 3 of 10

Question 4 of 10

4. What is the approx. mix proportion for M20?

1:1:2

1:3:6

1:1.5:3

1:2:4

Question 4 of 10

Question 5 of 10

5. What is internal sulphates attack?

Hydraulic cements

Industrial waste water

Sulphate are more usually are a result of ground water

Sulphate are more usually are a result of high-sulphate soils

Question 5 of 10

Question 6 of 10

6. Plain cement concrete is strong in taking ___________

Shear stress

Compressive stress

Tensile stress

Tensile, compressive and shear stresses

Question 6 of 10

Question 7 of 10

7. The property of a material that resists penetration or indentation by means of abrasion or scratching is known as ___________

Hardness

Strength

Toughness

Stiffness

Question 7 of 10

Question 8 of 10

8. What is equivalent flexural strength?

The stress value representing the average flexural strength in the post peak region up to a specified deflection of L/n obtained when Pe,n is used in the equation of modulus of rupture

The load value representing the average load-carrying capacity in the post peak region up to a specified deflection of L/n

Value of the mean equivalent flexural strength normalized with respect to mean flexural strength

The stress value obtained when the peak load value is used in the equation of modulus of rupture

Question 8 of 10

Question 9 of 10

9. Begin the test by separating the grips at a speed of _______________

20 cm per minute

20 inches per minute

20 inches per sec

20 mm per minute

Question 9 of 10

Question 10 of 10

10. A second name for compression wave is __________

Surface wave

Shear wave

Lamb wave

Longitudinal wave

Question 10 of 10