Description : Which of the following metamorphic rocks has the most weather resisting characteristics? (A) Marble (B) Quartzite (C) Slate (D) Lime stone
Last Answer : Answer: Option B
Description : Which of the following sedimentary rocks changes into quartzite by metamorphic action? (A) Sand stone (B) Lime stone (C) Shale (D) Gypsum
Last Answer : Answer: Option A
Description : The rock generally used for roofing, is (A) Granite (B) Basalt (C) Slate (D) Pumice
Last Answer : Answer: Option C
Description : The commonly used raw material in the manufacture of cement, is (A) Slate (B) Sand stone (C) Lime stone (D) Basalt
Description : Can you use a beach pebble as a pumice stone?
Last Answer : It’s probably safe, but pebbles (at least when I think of it) are normally small and smooth; pumice is a little bit rough, and that’s what makes it work.
Description : What would likely to happen if heavy pressure applied when using a pumice stone?
Last Answer : If this is about beauty, Skin Care etc, then the likely answeris that you'll cause an abrasion.
Description : Hardest material so far found is (A) Diamond (B) Graphite (C) Carborundum (D) Pumice stone
Last Answer : (A) Diamond
Description : Hardest materials so far found is (A) Diamond (B) Graphite (C) Carborundum (D) Pumice stone
Description : Quartzite, a metamorphic stone is (A) Hard (B) Brittle (C) Crystalline (D) All the above
Last Answer : Answer: Option D
Description : Which of the following stone is best suited for construction of piers and abutments of Railway Bridge a) Granite* b) Sandstone c) Limestone d) Quartzite
Last Answer : a) Granite*
Description : Stone generally preferred for railway ballast is a) Sandstone b) Dolomite c) Marble d) Basalt or trap granite*
Last Answer : d) Basalt or trap granite*
Description : The slag which floats on the surface of the molten iron generally contains (A) Lime (CaO) 45% (B) Silica (SiO2) 35% (C) Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8% (D) All the above
Description : The slag which floats on the surface of the molten iron generally contains (A) Lime (CaO) 45% (B) Silica (SiO2) 35% (C) Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8% (D) All these
Description : What is used in making of alloys? A. Gypsum B. Granite C. Chromium (Answer) D. Lime-stone
Last Answer : C. Chromium (Answer)
Description : Which of these is not a Metamorphic rock? A. Quartzite (Answer) B. Slate C. Gneiss D. Schist
Last Answer : A. Quartzite (Answer)
Description : Which of the following represents a metamorphic rock? (i) Slate (ii) Shale (iii) Quartzite The correct answer is (A) Only (iii) (B) Both (i) and (iii) (C) Both (ii) and (iii) (D) All (i), (ii) and (iii)
Description : The first step in the treatment of erosion is: A. Pumice and water B. Spray with Na-bicarbonate C. GIC
Last Answer : A. Pumice and water
Description : How do you treat dentine before applying GIC A. Conditioner B. Pumice & water
Last Answer : A. Conditioner
Description : Before filling a class V abrasion cavity with GIC you should(+adc March07) A. Clean with pumice, rubber cup, water and weak acid B. Dry the cavity thoroughly before doing anything C. Acid itch cavity then dry thoroughly
Last Answer : A. Clean with pumice, rubber cup, water and weak acid
Description : Out of the following substances, one ton of __________ will store the maximum heat for a rise of 30°C in temperature. (A) Steel (B) Lignite (C) Water (D) Lime stone
Last Answer : (C) Water
Description : Pavement is said to be flexible if it contains (A) Water bound macadam surface (B) Stabilised soil base constructed of lime cement or tar (C) Bitumen-bound stone layer of varying aggregates (D) All the above
Description : Hydraulic lime is obtained by (A) Burning of lime stone (B) Burning of kankar (C) Adding water to quick lime (D) Calcination of pure clay
Description : Is pumice shiny or dull?
Last Answer : dull
Description : How do you describe pumice rocks?
Last Answer : Thrown out of an active volcano during an eruption, pumice is lava that is so full of gas bubble holes that pumice is very light and can sometime float. I remember my mother in Liverpool, England, in ... today, especially by women who used the pumice stone to sand away the hard skin on their heels.
Description : What is a swift move in cloud of pumice and ash?
Last Answer : Feel Free to Answer
Description : Which of the following is not an abrasive material? (A) Bakelite (B) Pumice (C) Corundum (D) Carborundum
Last Answer : (A) Bakelite
Description : North American Indians used this mineral of volcanic origin to make tips for arrows: w) obsidian x) quartz y) flint z) pumice
Last Answer : ANSWER: W -- OBSIDIAN
Description : The principal aquifer of the artesian wells of Florida is a: w) porous sandstone x) fissured limestone y) series of clay beds z) mass of pumice
Last Answer : ANSWER: X -- FISSURED LIMESTONE
Description : The gas let out when the: lime stone is heated?
Last Answer : Carbon dioxide
Description : The product obtained when lime stone is heated?
Last Answer : Quicklime and Carbondioxide
Description : What happens when lime stone is not added during the extraction of iron?
Last Answer : If limestone is not added to charge during the extraction of iron, the blast furnace will get blocked.
Description : State the role of lime stone in the extraction of iron from haematite. Or Why is lime stone added during the extraction of iron?
Last Answer : Limestone reacts with the sand present as impurity in the ore forming calcium silicate which is taken out of the blast furnace as slag.
Description : Which plain formed due to the weathering of lime stone? -Do You Know?
Last Answer : answer:
Description : In conversion of lime-stone to lime, `CaCO_(3(s)) to CaO_((s)) + CO_(2(g))` the values of `DeltaH^@` and `DeltaS^@` are `+179.1 kJmol^(-1)` and `160.2
Last Answer : In conversion of lime-stone to lime, `CaCO_(3(s)) to CaO_((s)) + CO_(2(g))` the values of `DeltaH^@` and ... : A. 1008 K B. 1200 K C. 845 K D. 1118 K
Description : Why lime stone is added in the extraction of lead from galena ?
Last Answer : Why lime stone is added in the extraction of lead from galena ? A. It prevents the formation of ... moves the impurity of iron oxide as fusible slag.
Description : Why lime stone is added in the extraction of lead from galena?
Last Answer : Why lime stone is added in the extraction of lead from galena? A. It prevents the formation of ... moves the impurity of iron oxide as fusible slag.
Description : In the extraction of iron from haematitie, the charge used is haematite, coke and lime stone in the following weight ration
Last Answer : In the extraction of iron from haematitie, the charge used is haematite, coke and lime stone in the following weight ration ... C. `8:1:4` D. `1:4:8`
Description : Lime stone, Sand stone and Dolomite are
Last Answer : Ans. Sedimentary rocks
Description : Which mineral is mostly found in northern and western mountains of Pakistan? A. Chromite B. Lime-stone C. China Clay D. Gypsum
Last Answer : ANSWER: B
Description : Hyderabad has deposits of _____. A. Chromite B. Gypsum C. Fire Clay D. Lime-stone
Last Answer : ANSWER: D
Description : Minerals Hyderabad has deposits of _____. A. Chromite B. Gypsum C. Fire Clay D. Lime-stone
Description : What is used in making of alloys? A. Lime-stone B. Chromium C. Granite D. Gypsum
Description : Which plain formed due to the weathering of lime stone?
Last Answer : Karst plains
Description : The commonly used material in the manufacture of cement is (A) Sand stone (B) Slate (C) Lime stone (D) Graphite
Last Answer : (C) Lime stone
Description : The rock which is not calcareous, is: (A) Lime stone (B) Chalk (C) Laterite (D) None of these
Last Answer : (D) None of these
Description : Ordinary Portland cement is manufactured from (A) Lime stone and clay (B) Gypsum and lime (C) Pozzolana (D) Lime, pozzolana and clay
Description : Dolomite is a lime stone which contains carbonate of magnesia upto (A) 15 % (B) 20 % (C) 25 % (D) 45 %