Pick up the incorrect statement from the following. If water cement ratio is (A) Increased, strength of concrete increases (B) Decreased, strength of concrete increases(D) None of these (C) Increased, strength of concrete is not affected

Pick up the incorrect statement from the following. If water cement ratio is
(A) Increased, strength of concrete increases
(B) Decreased, strength of concrete increases
(C) Increased, strength of concrete is not affected
(D) None of these
by

1 Answer

Answer :

Answer: Option C
by

Related questions

Pick up the incorrect statement from the following: (A) With passage of time, the strength of cement increases (B) With passage of time, the strength of cement decreases (C) After a period of 24 months, the strength of cement reduces to 50% (D) The concrete made with storage deteriorated cement, gains strength with time

Description : Pick up the incorrect statement from the following: (A) With passage of time, the strength of cement increases (B) With passage of time, the strength of cement decreases (C) After a ... of cement reduces to 50% (D) The concrete made with storage deteriorated cement, gains strength with time

Last Answer : Answer: Option A

Select incorrect statement from the following [ A ] With passage of time, the strength of cement decreases [ B ] With passage of time, the strength of cement increases [ C ] After a period of 24 months, the strength of cement reduces to 50% [ D ] The concrete made with storage deteriorated cement; gains strength with time.

Description : Select incorrect statement from the following [ A ] With passage of time, the strength of cement decreases [ B ] With passage of time, the strength of cement increases [ C ] After a period ... cement reduces to 50% [ D ] The concrete made with storage deteriorated cement; gains strength with time.

Last Answer : [ B ] With passage of time, the strength of cement increases

Pick up the incorrect statement from the following. For performing compressive strength test of cement (A) Cement and standard sand mortar are used in the ratio of 1 : 3 (B) Water is added at the rate of (P/4) + 3.0 percentage of water where P is the percentage of water for standard consistency (C) A cube mould of 10 cm × 10 cm × 10 cm is used (D) The prepared moulds are kept in a atmosphere of 50% relative humidity

Description : Pick up the incorrect statement from the following. For performing compressive strength test of cement (A) Cement and standard sand mortar are used in the ratio of 1 : 3 (B) Water is added at the ... cm 10 cm is used (D) The prepared moulds are kept in a atmosphere of 50% relative humidity

Last Answer : Answer: Option A

Pick up the correct statement from the following: (A) The concrete gains strength due to hydration of cement (B) The concrete does not set at freezing point (C) The strength of concrete increases with its age (D) All the above

Description : Pick up the correct statement from the following: (A) The concrete gains strength due to hydration of cement (B) The concrete does not set at freezing point (C) The strength of concrete increases with its age (D) All the above

Last Answer : Answer: Option D

Pick up the incorrect statement from the following. While performing preliminary test on concrete (A) Proportions of the material and water should be the same as to be used at the work site (B) Cement should be mixed by hand in order to maintain uniformity (C) Concrete mix should be stored in air-tight containers (D) Concrete ingredients should be kept at a temperature of 37° ± 2°C

Description : Pick up the incorrect statement from the following. While performing preliminary test on concrete (A) Proportions of the material and water should be the same as to be used at the work site (B) ... in air-tight containers (D) Concrete ingredients should be kept at a temperature of 37° 2°C

Last Answer : Answer: Option D

For constructing a terrazzo floor, Pick up the incorrect statement from the following: (A) A base course is prepared as in cement concrete flooring (B) A 32 mm thick layer of cement concrete (1 : 2 : 4) is laid on the base course and the surface is made smooth by trowelling (C) Glass strips are driven into the layer according to the pattern required (D) After final grinding is over, oxalic acid mixed with water is spread over and rubbed hard with soft material

Description : For constructing a terrazzo floor, Pick up the incorrect statement from the following: (A) A base course is prepared as in cement concrete flooring (B) A 32 mm thick layer of cement concrete ... final grinding is over, oxalic acid mixed with water is spread over and rubbed hard with soft material

Last Answer : Answer: Option B

In case of cement concrete pavements, pick up the incorrect statement (A) Tractive resistance is low (B) Initial cost of construction is high (C) Initial cost of construction is low (D) Visibility during nights is high

Description : In case of cement concrete pavements, pick up the incorrect statement (A) Tractive resistance is low (B) Initial cost of construction is high (C) Initial cost of construction is low (D) Visibility during nights is high

Last Answer : Answer: Option C

Pick up the incorrect statement from the following: (A) Horizontal D.P.C. is provided at plinth level in internal walls (B) D.P.C. is provided under door and verandah openings (C) Vertical D.P.C. is not provided in internal walls (D) Cement concrete is a rigid damp-proofing material

Description : Pick up the incorrect statement from the following: (A) Horizontal D.P.C. is provided at plinth level in internal walls (B) D.P.C. is provided under door and verandah openings (C) Vertical D.P.C. is not provided in internal walls (D) Cement concrete is a rigid damp-proofing material

Last Answer : Answer: Option B

Strength of concrete increases with (A) Increase in water-cement ratio (B) Increase in fineness of cement (C) Decrease in curing time (D) Decrease in size of aggregate

Description : Strength of concrete increases with (A) Increase in water-cement ratio (B) Increase in fineness of cement (C) Decrease in curing time (D) Decrease in size of aggregate

Last Answer : (B) Increase in fineness of cement

The strength of cement concrete increases with (a) The increase of water cement ratio. (b) The decrease of water cement ratio. (c) The increase of cement ratio (d) None of these

Description : The strength of cement concrete increases with (a) The increase of water cement ratio. (b) The decrease of water cement ratio. (c) The increase of cement ratio (d) None of these

Last Answer : (a) The increase of water cement ratio.

Select the incorrect statement [ A ] R.C.C has better fire resistance than steel [ B ] R.C.C. structure is economical than steel structure [ C ] Strength of concrete decreases as age increases [ D ] R.C.C can be used for under water and marine structures

Description : Select the incorrect statement [ A ] R.C.C has better fire resistance than steel [ B ] R.C.C. structure is economical than steel structure [ C ] Strength of concrete decreases as age increases [ D ] R.C.C can be used for under water and marine structures

Last Answer : [ C ] Strength of concrete decreases as age increases

Pick up the correct statement from the following: (A) Water enables chemical reaction to take place with cement (B) Water lubricates the mixture of gravel, sand and cement (C) Strength of concrete structure largely depends upon its workability (D) All the above

Description : Pick up the correct statement from the following: (A) Water enables chemical reaction to take place with cement (B) Water lubricates the mixture of gravel, sand and cement (C) Strength of concrete structure largely depends upon its workability (D) All the above

Last Answer : (D) All the above

Pick up the correct statement from the following: (A) Water cement paste hardens due to hydration (B) During hardening cement binds the aggregates together (C) Cement provides strength, durability and water tightness to the concrete (D) All the above

Description : Pick up the correct statement from the following: (A) Water cement paste hardens due to hydration (B) During hardening cement binds the aggregates together (C) Cement provides strength, durability and water tightness to the concrete (D) All the above

Last Answer : Answer: Option D

Pick up the correct statement from the following: (A) Plain cement concrete is equally strong in compression as well as in tension (B) Slump test is performed to check concrete strength (C) Curing of concrete is done for proper compaction of cement (D) Fineness modulus is the index number expressing the relative sizes of both coarse and fine aggregates

Description : Pick up the correct statement from the following: (A) Plain cement concrete is equally strong in compression as well as in tension (B) Slump test is performed to check concrete strength (C ... D) Fineness modulus is the index number expressing the relative sizes of both coarse and fine aggregates

Last Answer : Option D

Pick up the correct statement from the following: (A) For thin structures subjected to wetting and drying, the water cement ratio should be 0.45 (B) For mass concrete structures subjected to wetting and drying, the water ratio should be 0.55 (C) For thin structures which remain continuously under water, the water-cement ratio by weight should be 0.55 (D) All the above

Description : Pick up the correct statement from the following: (A) For thin structures subjected to wetting and drying, the water cement ratio should be 0.45 (B) For mass concrete structures subjected to wetting and ... under water, the water-cement ratio by weight should be 0.55 (D) All the above

Last Answer : Answer: Option D

For different layers of cement concrete floor. Pick up the incorrect statement from the following: (A) The lowest layer consists of consolidated ground (B) A 10 cm thick clean sand is laid on consolidated ground (C) A 10 cm lime concrete (1 : 4 : 8) is laid on clean sand (D) A 10 cm thick cement concrete (1 : 2 : 4) is laid on top layer

Description : For different layers of cement concrete floor. Pick up the incorrect statement from the following: (A) The lowest layer consists of consolidated ground (B) A 10 cm thick clean sand is laid on consolidated ground (C) ... sand (D) A 10 cm thick cement concrete (1 : 2 : 4) is laid on top layer

Last Answer : Option D

Segregation of concrete (a) Increases the strength of concrete (b) Decreased the strength of concrete. (c) Not effect to strength of concrete. (d) None of these.

Description : Segregation of concrete (a) Increases the strength of concrete (b) Decreased the strength of concrete. (c) Not effect to strength of concrete. (d) None of these.

Last Answer : (b) Decreased the strength of concrete.

Increase in water content in a cement concrete (i) Increases workability (ii) Increases the strength [ A ] i [ B ] ii [ C ] both (i) and (ii) [ D ] neither (i) nor (ii)

Description : Increase in water content in a cement concrete (i) Increases workability (ii) Increases the strength [ A ] i [ B ] ii [ C ] both (i) and (ii) [ D ] neither (i) nor (ii)

Last Answer : [ A ] i

The condition not applicable to water cement ratio law, is (A) Internal moisture conditions on hydration continue till complete strength is gained (B) Concrete specimens may be tested at any temperature (C) Concrete specimens need be of same age (D) Concrete specimens need be of same size

Description : The condition not applicable to water cement ratio law, is (A) Internal moisture conditions on hydration continue till complete strength is gained (B) Concrete specimens may be tested at any temperature (C) Concrete specimens need be of same age (D) Concrete specimens need be of same size

Last Answer : Answer: Option B

According to Water-Cement Ratio Law, the strength of workable plastic concrete (A) Depends upon the amount of water used in the mix (B) Does not depend upon the quality of cement mixed with aggregates (C) Does not depend upon the quantity of cement mixed with aggregates (D) All the above

Description : According to Water-Cement Ratio Law, the strength of workable plastic concrete (A) Depends upon the amount of water used in the mix (B) Does not depend upon the quality of cement mixed with aggregates (C) Does not depend upon the quantity of cement mixed with aggregates (D) All the above

Last Answer : Answer: Option D

C.R.R.I. charts are used to obtain a relationship between strength of concrete and (A) Water cement ratio (B) Workability (C) Grading of aggregate (D) Fineness modulus

Description : C.R.R.I. charts are used to obtain a relationship between strength of concrete and (A) Water cement ratio (B) Workability (C) Grading of aggregate (D) Fineness modulus

Last Answer : Answer: Option A

Workability of concrete mix with low water cement ratio is determined by (A) Tensile strength test (B) Slump test (C) Compaction factor test (D) Flexural strength test

Description : Workability of concrete mix with low water cement ratio is determined by (A) Tensile strength test (B) Slump test (C) Compaction factor test (D) Flexural strength test

Last Answer : Answer: Option C

According to the rule of water cement ratio, the strength of concrete wholly depends upon. (a) The quality of cement. (b) The quality of cement mixed with aggregate. (c) The amount of water used in preparation of concrete mix. (d) All of the above

Description : According to the rule of water cement ratio, the strength of concrete wholly depends upon. (a) The quality of cement. (b) The quality of cement mixed with aggregate. (c) The amount of water used in preparation of concrete mix. (d) All of the above

Last Answer : (c) The amount of water used in preparation of concrete mix.

High strength of concrete requires a water cement ratio of [ A ] 0.10 to 0.15 [ B ] 0.25 to 0.30 [ C ] 0.45 to 0.60 [ D ] 0.75 to 0.90

Description : High strength of concrete requires a water cement ratio of [ A ] 0.10 to 0.15 [ B ] 0.25 to 0.30 [ C ] 0.45 to 0.60 [ D ] 0.75 to 0.90

Last Answer : [ B ] 0.25 to 0.30

Workability of concrete mix with low water cement ratio is determined by [ A ] Tensile strength test [ B ] Slump cone test [ C ] Compaction factor test [ D ] Flexural strength test

Description : Workability of concrete mix with low water cement ratio is determined by [ A ] Tensile strength test [ B ] Slump cone test [ C ] Compaction factor test [ D ] Flexural strength test

Last Answer : [ C ] Compaction factor test

ick up the incorrect statement from the following: (A) Admixtures accelerate hydration (B) Admixtures make concrete water proof (C) Admixtures make concrete acid proof (D) Admixtures give high strength

Description : ick up the incorrect statement from the following: (A) Admixtures accelerate hydration (B) Admixtures make concrete water proof (C) Admixtures make concrete acid proof (D) Admixtures give high strength

Last Answer : Answer: Option A

Pick up the incorrect statement from the following: (A) The degree of grinding of cement, is called fineness (B) The process of changing cement paste into hard mass, is known as setting of cement (C) The phenomenon by virtue of which cement does not allow transmission of sound, is known as soundness of cement (D) The heat generated during chemical reaction of cement with water, is known as heat of hydration

Description : Pick up the incorrect statement from the following: (A) The degree of grinding of cement, is called fineness (B) The process of changing cement paste into hard mass, is known as setting of ... (D) The heat generated during chemical reaction of cement with water, is known as heat of hydration

Last Answer : Answer: Option C

Pick up the incorrect statement from the following: (A) The bottom and top ends of slump mould are parallel to each other (B) The axis of the mould is perpendicular to the end faces (C) The internal surface of the mould is kept clean and free from set cement (D) The mould is in the form of a frustum of hexagonal pyramid

Description : Pick up the incorrect statement from the following: (A) The bottom and top ends of slump mould are parallel to each other (B) The axis of the mould is perpendicular to the end faces (C) The ... clean and free from set cement (D) The mould is in the form of a frustum of hexagonal pyramid

Last Answer : Answer: Option D

Pick up the incorrect statement applicable to the field test of good cement. (A) When one thrusts one's hand into a bag of cement, one should feel warm (B) The colour of the cement is bluish (C) By rubbing cement in between fingers, one should feed rough (D) All the above

Description : Pick up the incorrect statement applicable to the field test of good cement. (A) When one thrusts one's hand into a bag of cement, one should feel warm (B) The colour of the cement is bluish (C) By rubbing cement in between fingers, one should feed rough (D) All the above

Last Answer : Answer: Option D

Pick up the incorrect statement from the following: (A) Space between the exterior walls of a warehouse and bag piles should be 30 cm (B) Cement bags should preferably be piled on wooden planks (C) Width and height of the pile should not exceed 3 m and 2.70 m respectively (D) None of these

Description : Pick up the incorrect statement from the following: (A) Space between the exterior walls of a warehouse and bag piles should be 30 cm (B) Cement bags should preferably be piled on wooden planks (C) Width and height of the pile should not exceed 3 m and 2.70 m respectively (D) None of these

Last Answer : Answer: Option D

Select the incorrect statement from the following In eccentrically loaded columns, [ A ] The tensile strength of concrete is ignored [ B ] Design stress – strain curve for steel in compression is the same as in tension [ C ] The strain at different points in the section will be same [ D ] Plane section remain plane even after bending

Description : Select the incorrect statement from the following In eccentrically loaded columns, [ A ] The tensile strength of concrete is ignored [ B ] Design stress - strain curve for steel in compression is the ... different points in the section will be same [ D ] Plane section remain plane even after bending

Last Answer : [ C ] The strain at different points in the section will be same

Pick up the incorrect definition from the following: (A) Ratio of the compressive strength of unconfined undisturbed soil to that of remoulded soil, is known as the sensitivity of the soil sample (B) The rotation of soil particles into stable state while remoulding, is known as the thiostropy of soil (C) The water content at which a soil flows, is known plastic limit of the soil (D) None of these

Description : Pick up the incorrect definition from the following: (A) Ratio of the compressive strength of unconfined undisturbed soil to that of remoulded soil, is known as the sensitivity of the soil sample (B) The ... content at which a soil flows, is known plastic limit of the soil (D) None of these

Last Answer : Answer: Option D

Pick up the correct statement from the following: (A) The weight of ingredients of concrete mix, is taken in kilograms (B) Water and aggregates are measured in litres (C) 20 bags of cement make one tonne (D) All the above

Description : Pick up the correct statement from the following: (A) The weight of ingredients of concrete mix, is taken in kilograms (B) Water and aggregates are measured in litres (C) 20 bags of cement make one tonne (D) All the above

Last Answer : Answer: Option D

Pick up the correct statement from the following: (A) An increase in water content must be accompanied by an increase in cement content (B) Angular and rough aggregates reduce the workability of the concrete (C) The slump of the concrete mix decreases due to an increase in temperature (D) All the above

Description : Pick up the correct statement from the following: (A) An increase in water content must be accompanied by an increase in cement content (B) Angular and rough aggregates reduce the workability of the ... The slump of the concrete mix decreases due to an increase in temperature (D) All the above

Last Answer : Answer: Option D

Pick up the incorrect statement from the following: (A) Concrete for which preliminary tests are conducted, is called controlled concrete (B) Bulking of sand depends upon the fineness of grains (C) Concrete mix 1 : 6 : 12, is used for mass concrete in piers (D) All the above

Description : Pick up the incorrect statement from the following: (A) Concrete for which preliminary tests are conducted, is called controlled concrete (B) Bulking of sand depends upon the fineness of grains (C) Concrete mix 1 : 6 : 12, is used for mass concrete in piers (D) All the above

Last Answer : Answer: Option D

Pick up the incorrect statement from the following: (A) The width of the wall is constructed thicker at the base in a stepped fashion (B) A long vertical load transferring concrete structure is called a concrete pile (C) In pile which transfers the load to the soil by the friction between the pile and the surrounding soil is called friction pile (D) The pile which transfers the load to a hard rock bed at certain depth is called load bearing

Description : Pick up the incorrect statement from the following: (A) The width of the wall is constructed thicker at the base in a stepped fashion (B) A long vertical load transferring concrete structure is ... ) The pile which transfers the load to a hard rock bed at certain depth is called load bearing

Last Answer : Answer: Option D

Pick up the incorrect statement (A) The cross-sectional area of the welded member is effective (B) A welded joint develops strength of its parent metal (C) Welded joints provide rigidity (D) Welding takes more time than riveting

Description : Pick up the incorrect statement (A) The cross-sectional area of the welded member is effective (B) A welded joint develops strength of its parent metal (C) Welded joints provide rigidity (D) Welding takes more time than riveting

Last Answer : (D) Welding takes more time than riveting

Pick up the incorrect statement from the following: (A) Tricalcium silicate (C3S) hydrates rapidly (B) Tricalcium silicate (C3S) generates more heat of hydration (C) Tricalcium silicate (C3S) develops early strength (D) Tricalcium silicate (C3S) has more resistance to sulphate attac

Description : Pick up the incorrect statement from the following: (A) Tricalcium silicate (C3S) hydrates rapidly (B) Tricalcium silicate (C3S) generates more heat of hydration (C) Tricalcium silicate (C3S) develops early strength (D) Tricalcium silicate (C3S) has more resistance to sulphate attack

Last Answer : Answer: Option D

Pick up the correct statement from the following: (A) Lime in excess, causes the cement to expand and disintegrate (B) Silica in excess, causes the cement to set slowly (C) Alumina in excess, reduces the strength of the cement (D) All the above

Description : Pick up the correct statement from the following: (A) Lime in excess, causes the cement to expand and disintegrate (B) Silica in excess, causes the cement to set slowly (C) Alumina in excess, reduces the strength of the cement (D) All the above

Last Answer : Answer: Option D

Pick up the correct statement regarding low heat cement from the following: (A) It possesses less compressive strength (B) Its initial setting time is about one hour (C) Its final setting time is about 10 hours (D) All the above

Description : Pick up the correct statement regarding low heat cement from the following: (A) It possesses less compressive strength (B) Its initial setting time is about one hour (C) Its final setting time is about 10 hours (D) All the above

Last Answer : Answer: Option D

Pick out the wrong statement. (A) High early strength cement are made from materials having high silica to lime ratio (B) The function of gypsum in cement is to enhance its initial setting rate (C) Acid resistant cements are known as silicate cement (D) Major component of greyish Portland cement is tricalcium silicate

Description : Pick out the wrong statement. (A) High early strength cement are made from materials having high silica to lime ratio (B) The function of gypsum in cement is to enhance its initial ... cements are known as silicate cement (D) Major component of greyish Portland cement is tricalcium silicate

Last Answer : (A) High early strength cement are made from materials having high silica to lime ratio

Pick up the correct statement from the following: (A) The quality of water governs the strength of concrete (B) 10% excess of water reduces the strength of concrete by 15% (C) 30% excess of water reduces the strength of concrete by 50% (D) All the above

Description : Pick up the correct statement from the following: (A) The quality of water governs the strength of concrete (B) 10% excess of water reduces the strength of concrete by 15% (C) 30% excess of water reduces the strength of concrete by 50% (D) All the above

Last Answer : Answer: Option D

Pick up the correct statement from the following: (A) The lime in excess makes the cement unsound and causes the cement to expand and disintegrate (B) The silica in excess makes the cement stronger but its setting time also increases (C) The excess amount of alumina weakens the cement (D) All the above

Description : Pick up the correct statement from the following: (A) The lime in excess makes the cement unsound and causes the cement to expand and disintegrate (B) The silica in excess makes the cement stronger ... time also increases (C) The excess amount of alumina weakens the cement (D) All the above

Last Answer : Answer: Option D

For a good concrete (A) Aggregates should be hard and durable (B) Water should be free from organic materials (C) Cement should be sufficient to produce the required strength (D) All the above

Description : For a good concrete (A) Aggregates should be hard and durable (B) Water should be free from organic materials (C) Cement should be sufficient to produce the required strength (D) All the above

Last Answer : Answer: Option D

Concrete gains strength due to (A) Chemical reaction of cement with sand and coarse aggregates (B) Evaporation of water from concrete (C) Hydration of cement (D) All the above

Description : Concrete gains strength due to (A) Chemical reaction of cement with sand and coarse aggregates (B) Evaporation of water from concrete (C) Hydration of cement (D) All the above

Last Answer : Answer: Option C

Strength of cement concrete primarily depends upon (A) Quality of water (B) Quantity of aggregate (C) Quantity of cement (D) Water-cement

Description : Strength of cement concrete primarily depends upon (A) Quality of water (B) Quantity of aggregate (C) Quantity of cement (D) Water-cement

Last Answer : Answer: Option D

Concrete gains strength due to [ A ] Chemical reaction of cement with sand and coarse aggregates [ B ] Evaporation of water from concrete [ C ] Hydration of cement [ D ] All the above

Description : Concrete gains strength due to [ A ] Chemical reaction of cement with sand and coarse aggregates [ B ] Evaporation of water from concrete [ C ] Hydration of cement [ D ] All the above

Last Answer : [ C ] Hydration of cement

How does the ratio sand to cement effect the strength of concrete?

Description : How does the ratio sand to cement effect the strength of concrete?

Last Answer : Need answer

The approximate ratio between the strength of cement concrete at seven days and 28 days is a) 3/ 4 b) 2/3* c) 1/2 d) 1/3

Description : The approximate ratio between the strength of cement concrete at seven days and 28 days is a) 3/ 4 b) 2/3* c) 1/2 d) 1/3

Last Answer : b) 2/3*

Minimum number of 50 kg cement bags per cubic metre of concrete for a mix corresponding to crushing strength 280 kg/cm2 at 28 days, are (A) 5.0 (B) 6.5(C) 7.0 (D) 7.5

Description : Minimum number of 50 kg cement bags per cubic metre of concrete for a mix corresponding to crushing strength 280 kg/cm2 at 28 days, are (A) 5.0 (B) 6.5 (C) 7.0 (D) 7.5

Last Answer : Answer: Option B