Construction Materials

Front 1

The ingredients in lime portland cement mortar are lime,cement stone and water

Back 1

False

Front 2

The ingredients in lime portland cement mortar are, lime, gypsum, cement and water

Back 2

False

Front 3

Concrete is a conglomerate of gravel, portlan cement and water

Back 3

False

Front 4

Concrete is a conglomerate of lime, gypsum, cement and water

Back 4

False

Front 5

Concrete is a conglomerate of Aggregetes, portland cement and water

Back 5

True

Front 6

Concrete is generally reinforced to counteract tensile stresses

Back 6

True

Front 7

Concrete is generally reinforced to counteract compressive stresses

Back 7

False

Front 8

Concrete is generally reinforced to counteract iagonal stresses

Back 8

False

Front 9

The aggregate in concrete is composed of a combination of sand, stone, and gravel

Back 9

True

Front 10

Aggregate poportions should be selected in such quantities as to allow for minima voids to be filled by the portland cement

Back 10

True

Front 11

The aggregate in concrete iscomposed of a combination of sand, gravel and cement

Back 11

False

Front 12

The aggregate in concrete iscomposed of a combination of stone, gravel and cement

Back 12

False

Front 13

Themethod for measuring the consistency of concrete is called the slump test

Back 13

True

Front 14

Themethod for measuring the consistency of concrete is called the soil boring test

Back 14

False

Front 15

Themethod for measuring the consistency of concrete is called the compression test

Back 15

False

Front 16

The method for measuring the consistency of concrete is called the Plasticity test

Back 16

False

Front 17

The process of keeping concrete moist for an extended period after placement to insure proper hydration for strength and quality is called curing

Back 17

True

Front 18

The process of keeping concrete moist for an extended period after placement to insure proper hydration for strength and quality is called Floating

Back 18

False

Front 19

The process of keeping concrete moist for an extended period after placement to insure proper hydration for strength and quality is called Bleeding

Back 19

False

Front 20

The process of keeping concrete moist for an extended period after placement to insure proper hydration for strength and quality is called Troweling

Back 20

False

Front 21

water is added to concrete in direct realtion to proper proportion of cement

Back 21

True

Front 22

water is added to concrete in direct realtion to proper proportion of sand

Back 22

False

Front 23

water is added to concrete in direct realtion to proper proportion of aggregates

Back 23

False

Front 24

ordinary concrete cures to its maximum strength in 28 day

Back 24

True

Front 25

The maximum strength of concrete is defined as the planned for strenght as measured by tests performed at 28 days from the pour

Back 25

True

Front 26

the 'actual' maximum strength of concrete can be seen to increase past the 28 day test for maximum strengh provide that conditions for curing continue to be favorable

Back 26

True

Front 27

The chemical reaction between portland cement and water is known as hyration

Back 27

True

Front 28

ordinary concrete cures to its maximum strength in 24 hours

Back 28

False

Front 29

ordinary concrete cures to its maximum strength in 7 days

Back 29

False

Front 30

The test given to concrete for determining its strenght is called the slump test

Back 30

False