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Scientific posters

Quiz by Martin Schramm

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13 questions
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  • Q1

    How does the strength and dimensional accuracy of objects printed using selective cement activation change as the amount of water applied increases?

    the strength increases and the dimensional accuracy decreases

    the strength and dimensional accuracy remain unaltered

    the strength decreases and the dimensional accuracy increases

    300s
  • Q2

    Which of the following materials is used in the Shotcrete 3D printing process?

    polymer

    concrete

    clay

    300s
  • Q3

    Which tungsten additive manufacturing process yields the better spatial resolution?

    PBF-EB/M

    DED-EB

    PBF-LB/M 

    300s
  • Q4

    What distinguishes the analysis using the wavelet transform from that using the short-time Fourier transform?

    With the selected parameters, the wavelet transform better represents the short-term oscillatory processes.

    The short-time Fourier transform has better temporal resolution

    No difference

    300s
  • Q5

    Which of the following materials are used as supplementary cementitious materials (SCM) to reduce the cement content of concrete?

    calcinated clay

    fired sulphur

    ionised sodium

    300s
  • Q6

    What can be used as a substitute for neutrons to simulate the irradiation-induced displacement damage that can be expected in afuture fusion power plant?

    Relativistic electrons

    High-energy ions

    Annealing in a deuterium atmosphere

    300s
  • Q7

    Which of the following options does not affect the time and energy required for diffusion welding?

    The color of the operator's gloves

    The geometric, physical, and chemical properties of the welded parts' surfaces

    The temperature and pressure during diffusion welding

    300s
  • Q8

    Which material-specific phenomena need to be taken into account in the long-term monitoring of reinforced concrete structures?

    Attenuation,  Shrinkage, and Corrosion

    Frost Attack, Corrosion, and Sauction

    Frost Attack, Carbonation, and Corrosion

    300s
  • Q9

    What are the main reaction products formed during the wet carbonation of hydrated cement fines?

    Unreacted clinker and hydrate phases

    Gypsum and Monocarbonate (AFm phase)

    CaCO3 and Al-Si-Gel

    300s
  • Q10

    What is the advantage of dynamic cross-flow filtration over conventional separation methods for extracting pore solution from cement paste?

    Easy to implement

    Low material consumption

    Continuous extraction of filtrate

    300s
  • Q11

    Why do we use confocal microscopy?

    to detect aggregates

    to detect air-voids

    to detect cement-paste

    300s
  • Q12

    Which thermodynamic database is commonly used to modelcementitious systems?

    CEMmod2020

    CEMDATA18

    ThermoCEM

    300s
  • Q13

    What is the most significant risk posed by boiling in the cooling channels of plasma-facing components?

    Boiling can lead to localized overheating, which can damage the component

    Boiling causes vapor pockets, increasing the risk of thermal fatigue

    Boiling can lead to flow blockages, reducing pumping efficiency

    Boiling can cause pressure buildup, leading to channel rupture

    300s

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