Lime

Hydraulic lime mortar should be used with in __________ hours of mixing

• 1
• 4
• 10
• 24

How many operations are involved in the manufacture of fat lime ?

• 1
• 2
• 3
• 4

The maximum increase in volume when water is added to fat lime is __________

• 1.5 times
• 2.5 times
• 3 times
• 3.5 times

The minimum compressive strength of lime mortar 1 : 3 with Class A lime at the end of 14 days is

• 1.75 N/mm²
• 1.25 N/mm²
• 2.8 N/mm²
• 1.5 N/mm²

Limestone comes under the category of :

• Aqueous rock
• Sedimentary rock
• Stratified rock
• All of these

Which rock has main content of calcium carbonate?

• Argillaceous rocks
• Siliceous rocks
• Foliated rocks
• Calcareous rocks

Lime is used for :

• As a matrix for concrete
• Improving soil for agriculture
• For plastering
• All of these

Which test is conducted to know the classification of lime?

• Ball test
• Visual test
• Impurity test
• Workability test

Plaster of Paris is obtained from the calcinations of

• Bauxite
• Limestone
• Dolomite
• Gypsum

When water is added to quicklime it cracks, swells and falls into a powdery form. This process is called :

• Calcination
• Hydraulicity
• Slaking
• Setting