Exam (elaborations)
Weekly lecture quizzes IBPM 7S3X0 / 7B1B10
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This document contains questions and answer to weekly quizzes from lecture of Materials, Heat and Moisture
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1. What is a monolithic façade?a. A façade with 1 window row
b. A façade with a single patina
c. A façade made from one material
d. A façade consisting of multiple-layer materials
2. Hooke’s law describes that
a. A material does not return to its original shape after removal of the exerted stress
b. Stress is linearly proportional to strain
c. Some materials return to their original shape after removal of the exerted stress
d. Stress is exponentially proportional to strain
3. Which property is missing: Q =? * m * T?
a. Specific energy
b. Thermal expansion
c. Thermal conductivity
d. Specific heat
4. With a material with a specific density of 2000 kg/m3 a porous material with a dry
apparent density of 400 kg/m3 is produced. The porosity of this porous material is:
a. 80%
b. 84%
c. 20%
d. 16%
5. Which rock types do we know? Choose the correct and most complete answer.
a. Sedimentary, feldspar, and isomorphic
b. Sedimentary, igneous, and feldspar
c. Igneous and isomorphic
d. Igneous and sedimentary
6. How are natural stones and their erosion products mined? Choose the correct and
most complete answer.
a. Quarrying or dredging
b. Quarrying, dredging, or excavation
c. Dredging, excavation, or drying
d. Excavation, quarrying, or sieving
7. Which binders are used for production of AAC? Choose the correct and most complete
answer.
a. Gypsum and lime
b. Sand, cement, and lime
c. Lime, gypsum, and cement
d. Cement and lime
, 8. What happens when more water is added than stoichiometrically needed for the
reaction of hemihydrate?
a. The hemi-hydrate becomes more porous
b. The gypsum becomes denser
c. The gypsum becomes more porous
d. The limestone becomes denser
9. Which statement is wrong?
a. Concrete consists of cement, sand, and gravel
b. Sand and gravel are aggregates in self-compacting concrete
c. Mortar consists of lime and sand
d. Earth-moist concrete is self-compacting
10. Choose the correct and most complete answer. Ordinary Portland cement consists of:
a. C3S, C2S, C3A, C3AF, and gypsum
b. C3S, C2S, and C3AF
c. C3S, C2S, and C3A
d. C3S, C2s, C3A, and gypsum
11. Which type of polymer is represented in the graph below:
a. Natural rubber
b. Low Density Polyethylene
c. Ethylene tetrafluoroethylene copolymer
d. Vinyl ester
12. Among these materials, which one has the highest thermal conductivity?
a. Extruded polystyrene
b. Aerogel
c. Softwood
d. Clay brick
13. What happens in the pictures below?
a. Mechanical cleavage
b. UV-degradation
c. Chemical hydrolysis
d. Thermal modification
14. What is the name of the following chemical process?
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