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The result obtained indicates excellent knowledge of the technical characteristics of ceramic tiles. But still read articles on incorrectly answered questions.
You scored 4 out of 5 possible points.
Your result: 80%
Question 1
To mix (dilute, mix) cement adhesive mixtures of class C1, it is necessary to use...
Your Answer Option Right? Result
Vegetable oil
0 Synthetic oil
0 PVA - emulsion of polyvinyl acetate in water, with a plasticizer and special additives
0 Primer
0 Water
1 Water-based latex mixture
1 Adhesive milk
0 Water latex
1
Material on this issue is presented in technical data sheets for cement adhesive mixtures.
Question 2
What requirements must be met for hardened solutions of adhesive mixtures?
Your Answer Option Right? Result
The transverse deformation of class S1 adhesives must be at least 2.5 mm, class S2 – at least 5 mm.
1 The strength of the adhesive joint after cyclic freezing and thawing must be no less than:
0.5 MPa for C1;
1 The strength of the adhesive joint after exposure to an air-dry environment for 28 days must be no less than:
0.5 MPa for C0;
1 The open time to achieve an adhesive joint strength of at least 0.5 MPa should be for adhesives of the following class:
C0 and F – when gluing tiles after 10 minutes;
1 The strength of the adhesive joint after exposure to an aqueous environment must be no less than:
0.5 MPa for C1;
1 The strength of the adhesive connection to the base of fast-hardening class F adhesives after exposure in an air-dry environment for 6 hours should be no more than 0.5 MPa
0 The strength of the adhesive joint after exposure to high temperatures must be no less than:
0.5 MPa for C1;
1
Material on this issue is presented in the GOST R 56387 .
Question 3
Adhesive mixtures must comply with the requirements of the GOST R 56387 standard and be manufactured according to technological documentation approved by the manufacturer. The main indicators of the quality of adhesive mixtures ready for use (freshly prepared) are ...
Your Answer Option Right? Result
Average density
1 Minimum Density
0 Maximum Density
0 Water holding capacity
1 Resistance to slippage
1 Open time
0 Humidity
0
Material on this issue is presented in the GOST R 56387 .
Question 4
An example of a symbol for an adhesive mixture based on a cement binder, intended for interior and exterior work, meeting increased requirements, with increased resistance to slipping, increased open time and high elasticity.
Your Answer Option Right? Result
Dry construction adhesive mixture C1 TE S2, GOST R 56387
0 Dry construction adhesive mixture C1 FE S2, GOST R 56387
0 Dry construction adhesive mixture C1 TE S1, GOST R 56387
0 Dry construction adhesive mixture C2 TE S2, GOST R 56387
1 Dry construction adhesive mixture C2 FE S2, GOST R 56387
0 Dry construction adhesive mixture C2 TE S1, GOST R 56387
0
Material on this issue is presented in the GOST R 56387 .
Question 5
What requirements must be met for adhesive mortar mixtures (ready-to-use)?
Your Answer Option Right? Result
The average density of adhesive mortar mixtures must exceed 1800 kg/m3
-1 Resistance to slipping of adhesive mixtures is characterized by the value of displacement under the influence of gravity of facing tiles laid on a vertical or inclined surface. For adhesive mixtures, the offset value should be no more than 1.5 mm.
0 The average density of adhesive mortar mixtures is set by the manufacturer at the request of the consumer
0 The water-holding capacity of adhesive mortar mixtures, ready for use, must be at least 85%
-1 Resistance to slipping of adhesive mixtures is characterized by the value of displacement under the influence of gravity of facing tiles laid on a vertical or inclined surface. For adhesive mixtures of class T, the displacement value should be no more than 0.5 mm, for mixtures of other classes - no more than 0.7 mm.
1 The water-holding capacity of ready-to-use adhesive mortar mixtures must be at least 98%
0
Material on this issue is presented in the GOST R 56387 .
