Pick the option with the HIGHER density / strength value.

Exercise and reference answers

Questions

1. A

   Pumice (≈700 kg/m³)

   B

   Conventional concrete (≈2400 kg/m³)

   Higher value

   Conventional concrete (≈2400 kg/m³)

2. A

   Cylinder strength at 30 N/mm² cube

   B

   Cube strength at 30 N/mm²

   Higher value

   Cube strength at 30 N/mm²

3. A

   Light weight aggregate concrete (1500 kg/m³)

   B

   High density barite concrete (3600 kg/m³)

   Higher value

   High density barite concrete (3600 kg/m³)

4. A

   Cement specific heat (0.27 cal/g/°C)

   B

   Water specific heat (1.0 cal/g/°C)

   Higher value

   Water specific heat (1.0 cal/g/°C)

5. A

   Ice latent heat of fusion (80 cal/g)

   B

   Water specific heat per °C (1 cal/g)

   Higher value

   Ice latent heat of fusion (80 cal/g)

Explanation