The commonly used lime in white washing is  
a) Hydraulic lime
b) Slaked lime
c) Plain lime  
d) White lime*

1 Answer

Answer :

d) White lime*

Related questions

Description : The commonly used lime in white washing, is (A) White lime (B) Fat lime (C) Hydraulic lime (D) Quick lime

Last Answer : Answer: Option B

Description : (A) Washing soda (B) Soda ash (C) Slaked lime (D) Quicklime

Last Answer : (A) Washing soda

Description : Hydraulic lime is not used in plastering because it may result in a) Blistering* b) Efflorescence c) Flaking d) Fluorescence

Last Answer : a) Blistering*

Description : Which of the following lime can set under water also a) Fat Lime b) Lean lime* c) Hydraulic line d) Quick lime

Last Answer : b) Lean lime*

Description : The lime which contains mainly calcium oxide and slacks with water, is known as a) Fat lime b) Quicklime* c) Hydraulic lime d) Poor line

Last Answer : b) Quicklime*

Description : Study the following statements. (i) Hydraulic lime is suitable for white washing, (ii) Fat lime is suitable for whitewashing, (iii) Hydraulic lime is suitable for making mortar, (iv) Fat lime is suitable for making mortar.

Last Answer : Answer: Option B (B) (ii) and (iii)

Description : Most widely and commonly used coagulant for the removal of suspended impurities in water is (A) Bleaching powder (B) Slaked lime (C) Alum (D) Copper sulphate

Last Answer : (C) Alum

Description : Lime mortar is generally made with (A) Quick lime (B) Fat lime (C) Hydraulic lime (D) Plain lime

Last Answer : Answer: Option C

Description : Salt A commonly used in bakery products on heating gets converted into another salt B which itself is used for removal the hardness of water and a gas C is evolved. The gas C when passed through lime water ,turns it ... © A is baking soda ,B is washing soda and C is carbon dioxide (d) both a and c

Last Answer : (d) both a and c

Description : What is slaked lime ?

Last Answer : Slaked lime is calcium hydroxide. It is also called colchicum.

Description : What is the ratio of slaked lime and sand in mortar ?

Last Answer : Ratio is 1:3

Description : The commercial name for calcium hydride is (a) Lime (b) Hydrolith (c) Slaked lime (d) Calgon

Last Answer : Ans:(b)

Description : Bleaching powder is prepared by passing – (1) Chlorine over slaked lime (2) Oxygen over slaked lime (3) Carbon dioxide over slaked lime (4) Chlorine over quick lirne

Last Answer : (1) Chlorine over slaked lime Explanation: Calcium hypochlorite (bleaching powder) is manufactured by the calcium process: 2Cl2 + 2Ca(OH)2 (slaked lime) Ca(OCl)2 + CaCl2 + 2H2O. Bleaching powder is actually a mixture of calcium hypochlorite and the basic chloride with some slaked lime.

Description : Mortar is a mixture of water sand and (1) Slaked lime (2) Quick lime (3) Limestone (4) Gypsum

Last Answer : (1) Slaked lime Explanation: Mortar is a workable paste used to bind construction blocks together and fill the gaps between them. The blocks may be stone, brick, cinder blocks, etc. Mortar becomes hard ... Mortar can also be used to fix, or point, masonry when the original mortar has washed away.

Description : What is the difference between quick lime and slaked lime?

Last Answer : Quick lime is calcium oxide and slaked lime is calcium hydroxide

Description : Write any three uses of Calcium Hydroxide (Slaked lime)

Last Answer : Ans i) It is used in the preparation of mortar, a building material. (ii) It is used in white wash due to its disinfectant nature. (iii) It is used in glass making, in tanning industry, for the preparation of bleaching powder and for purification of sugar.

Description : Which of the following is acidic in nature? a) Apple juice b) Soap solution c) Slaked lime d) Lime

Last Answer : a) Apple juice

Description : The product obtained on mixing calcium oxide with water is called (A) Quicklime (B) Slaked lime (C) Milk of lime (D) None of these

Last Answer : (B) Slaked lime

Description : CaO is called (A) Quick lime (B) Slaked lime (C) Limestone (D) Calcite

Last Answer : (A) Quick lime

Description : Addition of calcium oxide to water produces (A) Exothermic heat (B) Hissing sound (C) Slaked lime (D) All (A), (B) & (C)

Last Answer : (D) All (A), (B) & (C)

Description : Ca(OH)2 is called (A) Quicklime (B) Slaked lime (C) Limestone (D) Gypsum

Last Answer : (B) Slaked lime

Description : Rotary kiln is not involved in the production of (A) Cement (B) Lime from limestone (C) Slaked lime from quick lime (D) None of these

Last Answer : (C) Slaked lime from quick lime

Description : Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action of chlorine on (A) Slaked lime (B) Soda lime (C) Calcium perchlorate (D) None of these

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Description : __________ of quicklime produces slaked lime. (A) Hydration (B) Dehydration (C) Hydrogenation (D) None of these

Last Answer : (A) Hydration

Description : Pick up the correct statement from the following: (A) Slaked lime contains calcium hydroxide (B) Quick lime contains calcium oxide (C) Slaked lime may be obtained from quick lime (D) All the above

Last Answer : Answer: Option D

Description : write any three uses of Calcium Hydroxide (Slaked lime) 

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Description : Write a note on the Physical Properties of Calcium Hydroxide (Slaked lime), Ca(OH)2

Last Answer : It is a white amorphous powder. It is sparingly soluble in water. The aqueous solution is known as lime water and a suspension of slaked lime in water is known as milk of lime. 

Description : How is Calcium Hydroxide (Slaked lime), Ca(OH)2 Prepared? 

Last Answer :  Calcium hydroxide is prepared by adding water to quick lime, CaO.

Description : Find the odd one: (1) Marble (2) Chalk (3) Limestone (4) Slaked lime

Last Answer : Slaked lime

Description : Bleaching powder is prepared by passing : (1) Chlorine over slaked lime (2) Oxygen over slaked lime (3) Carbon dioxide over slaked lime (4) Chlorine over quick lirne

Last Answer : Chlorine over slaked lime

Description : Mortar is a mixture of water, sand and (1) Slaked lime (2) Quick lime (3) Limestone (4) Gypsum

Last Answer : Slaked lime

Description : Under slung girders can be used in a) Plain section b) Ghat section* c) Aquaduct d) Viaduct

Last Answer : b) Ghat section*

Description : Requirement of water for apron washing a. 5 litre per square metre per day b. 10 litre per square metre per day * c. 15 litre per square metre per day d. 20 litre per square metre per day

Last Answer : b. 10 litre per square metre per day *

Description : Requirement of water for platform washing is a)5 litre per square metre per day * b)10 litre per square meter per day c) 15 litre per square metre per day d)20 litre per square metre per day

Last Answer : a)5 litre per square metre per day *

Description : Sand is mixed with lime to a) Reduced cost b) Reduced setting time c) Prevent shrinkage and cracking* d) Improve visual appearance

Last Answer : c) Prevent shrinkage and cracking

Description : Soundness test of cement is done to determine its a) Durability in seawater b) Free lime content* c) Iron oxide content d) Alumina content

Last Answer : b) Free lime content*

Description : Which of the following constituents impart plasticity to brick earth a) Alumina* b) Silica c) Lime d) Magnesia

Last Answer : a) Alumina*

Description : The main ingredients of Portland cement are a) Lime and silica* b) Lime and Alumina c) Alumina magnesia d) Silica and Alumina

Last Answer : a) Lime and silica*

Description : The minimum percentage of silica, alumina and ferric oxide in lime for white washing, is (A) 20 (B) 15 (C) 5 (D) 0

Last Answer : Answer: Option D

Description : Quick lime (A) Generates heat when added to water (B) Reacts with carbon dioxide (C) May be used for white-washing (D) All the above

Last Answer : Answer: Option D

Description : The commonly used power transmission system in ferti seed drills are: a) China-sprocket and gears b) Gears and belt pulleys c) Belt pulleys and cams d) Belt pulleys and chain sprocket

Last Answer : d) Belt pulleys and chain sprocket

Description : The method of plane tabling commonly used for establishing the instrument station is a method of (a) Radiation (b) Intersection* (c) Resection (d) Traversing

Last Answer : (b) Intersection*

Description : The initial setting time of hydraulic lime, is (A) 30 minutes (B) 60 minutes (C) 90 minutes (D) 120 minutes

Last Answer : Answer: Option D

Description : For construction of structures under water, the type of lime used, is (A) Hydraulic lime (B) Fat lime (C) Quick lime (D) Pure lime

Last Answer : Answer: Option A

Description : The lime which contains mainly calcium oxide and slacks with water, is (A) Fat lime (B) Quick lime (C) Hydraulic lime (D) Poor lime

Last Answer : Answer: Option B

Description : The main constituent which imparts hydraulicity to hydraulic lime is (A) Calcium oxide (B) Silica (C) Clay (D) Water

Last Answer : Answer: Option C

Description : Lime putty (A) Is made from hydraulic lime (B) Is made by adding lime to water (C) Can be used only upto three days (D) All of above

Last Answer : Answer: Option D

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

Last Answer : Answer: Option B

Description : Pick up the incorrect statement from the following: (A) Hydraulic lime is generally obtained by burning kankar (B) Hydraulic lime sets slowly as compared to fat lime (C) Hydraulic lime is generally used in lime mortar (D) None of these

Last Answer : Answer: Option D

Description : Pick up the correct statement from the following: (A) Quick lime is obtained by burning pure lime stone (B) Hydraulic lime is obtained by burning lime stone containing clay 5% to 30% (C) Poor lime is obtained by burning lime stone containing impurities more than 5% (D) All the above

Last Answer : Answer: Option D