The wedging is adopted for quarrying costly stratified rock such as
1.laterite
2.marble
3.limestone
4.All the above.
Answer:4
Posted Date:-2021-03-26 00:45:57
1. split easily
2. are affected by moisture
3.both (a) and (b)
4. none of these.
Answer 31.an oxide of iron paint
2.a mixture of white lead and lead paint
3. a special paint
4.cement paint.
Answer 21.pleasing surface
2.hard surface
3. smooth surface
4. smooth surface
Answer 41.copper and zinc
2.zinc and lead
3.tin and silver
4. zinc and nickel
Answer 11.is made by grinding its one side
2.is made by melting powdered glass paints surface
3. is used for getting light without transparency
4.all the above.
Answer 41.The low voltage porcelain is prepared by wet process
2.The low voltage porcelain is prepared by wet process
3.The low voltage porcelain is prepared by dry process
4.None of the above.
Answer 31.are of dark brown colour
2.produce a metallic sound when struck
3.are well burnt
4.are under burnt.
Answer 21.fat lime
2.rich lime
3.white lime
4.All of these.
Answer 41.possess 10 to 17 times greater breakage resistance than that of glass of equivalent thickness
2.are generally unaffected by most household detergents
3. possess the light transmission rate of 93%
4.all the above.
Answer 41. hydraulic lime
2.fat lime
3.quick lime
4.pure lime
Answer 11. oil paint
2.distemper
3.spirit varnish
4.none to these.
Answer 31.petroleum
2.spirit
3.coaltar
4.turpentine.
Answer 11.The free quartz suddenly expands at a temperature lower than 600°C
2.The lime stone resists fire upto about 800°C and at higher temperature it splits into CaO and CO2
3.The sand stone with silicates resist a fire in a better way
4.All the above.
Answer 41. Styrene resin is produced from ethylene which is made from petroleum
2.Styrene resin is light in weight
3.Styrene resin is used to manufacture utensils which are unaffected by chemicals
4.All the above.
Answer 41.Rust is due to formation of oxides
2. Cast iron oxidises less
3. Steel oxidises most
4.Wrought iron oxidises moderat
Answer 41. Adding 5% to 6% of moisture content by weight, increases the volume of dry sand from 18% to 38%
2.The bulking of fine sand is more than that of coarse sand
3.The bulking of fine sand is more than that of coarse sand
4.All the above.
Answer 41.absence of sun light
2.dampness
3.dampness
4.All the above,
Answer 41.1 mm thick
2.2 mm thick
3.2 to 3 mm thick
4.3 to 4 mm thick
Answer 41. larger proportion of lime grounded finer than normal cement
2.lesser proportion of lime grounded coarser than normal cement
3. lesser proportion of lime grounded finer than normal cement
4.larger proportien of lime grounded coarser than normal cement
Answer 11.sports articles
2.furnitures
3.railway sleepers
4.all the above.
Answer 21.red
2.blue
3.white
4.green
Answer 31.slate
2.sand stone
3. lime stone
4.basalt.
Answer 31.weathering
2.blending
3.tempering
4.None of these.
Answer 21. red lead
2. red lead
3.white lead
4. titanium white.
Answer 31.sedimentary rocks
2. igneous rocks
3. metamorphic rocks
4.none of these.
Answer 21.a little large to specified size
2.a little small to specified size
3.equal to specified size
4. 10% larger than specified size
Answer 11.laterite
2.marble
3.limestone
4.All the above.
Answer 41.increases
2.decreases
3. remains the same
4.none to these.
Answer 2