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WorksheetsDay 39-Oct 29-worksheet-PWD-Stone,ceramics,lime&glass
Total questions: 15
Worksheet time: 11mins
Which variety of glass has the lowest thermal expansion and is suitable for microwave oven?
Common glass
Soda-lime glass
Borosilicate glass
Hard glass
The red colour in terracotta tiles is mainly due to the presence of
Lime
Silica
Iron oxide
Potash
The most weather-resisting metamorphic rock is
Slate
Marble
Quartzite
Gneiss
In IS 712:1984 classification, Class A is
Fat lime
Semi-hydraulic lime
Eminently hydraulic lime
Kankar lime
Gneiss is igneous and granite is metamorphic.
True
False
Assertion (A): Fat lime is not suitable for thick masonry. Reason (R): Fat lime requires CO₂ from air to set.
Both A & R true, R correct explanation
Both true, R not explanation
A true, R false
A false, R true
Slow and uniform cooling of glass is known as (a) .
Earthenware becomes usable only after it is (a) .
Hydraulic property of lime (a) with increase in clay content.
The layered texture of metamorphic rocks is known as (a) structure.
The test used to detect soluble matter in stones is (a) test.
Odd one out
Porcelain
Stoneware
Earthenware
Marble
Correct order of glass manufacture is?
(i) Collection of raw materials (ii) Melting (iii) Fabrication (iv) Annealing
(i) → (ii) → (iii) → (iv)
(ii) → (i) → (iv) → (iii)
(i) → (iii) → (ii) → (iv)
(i) → (iv) → (iii)→ (ii)
Metamorphic form of sandstone = (a)
Fat lime has high plasticity but _____ hydraulicity and _____ slaking.
low hydraulicity, fast
high hydraulicity, slow
low hydraulicity, slow
high hydraulicity, fast
