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WorksheetsLIME CLASSIFICATIONS
Total questions: 13
Worksheet time: 7mins
1. The process of heating to redness in the presence of air is called __________
a) Hydraulicity
b) Setting
c) Roasting
d) Calcination
2. Lime is obtained from the calcination of ___________
a) LIME -SILICA
b) SANDSTONE
c) LIMESTONE
d)LIME-CONCRETE
3. The chemical composition of quick lime is ____________
a) CaS
b) CaO
c) MgO
d) MgS
4. Slaked lime is __________
a) Calcium oxide
b) Hydrated oxide of calcium
c) Calcium carbonate
d) Calcium silicate
5.Kankar is an impure limestone while white chalk is pure limestone.
a) TRUE
b) FALSE
6.In order to develop hydraulicity, it is necessary to have _________ and _________ present in chemical combination with the limestone.
a) Alumina and carbon
b) Magnesium and carbon
c) Silica and carbon
d) Alumina and silica
7.Which of the following is not a property of fat lime?
a) It readily hardens
b) The colour of fat lime is perfectly white
c) Fat lime slakes vigorously
d) Fat lime sets slowly in the presence of air
8.Fat lime is also called _________
a) Water lime
b) Pure lime
c) Impure lime
d) Lean lime
9.The commonly used lime in white washing is
a) Quick lime
b) fat lime
c) hydraulic lime
d) all the above
10.During slaking process the volume lime
a. decreases slowly
b. decreases rapidly
c. increases
d. will ramain same
In a mortar , the binding material is
a. cement
b. sand
c. isurkhi
d. cinder
lime mortar is generally made with
a. fat lime
b. quick lime
c. hydraulic lime
d. pure lime
normal curing period of lime is
a. 7 days
b. 3 days
c. 10 days
d. 14 days
