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

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
by

1 Answer

Answer :

Answer: Option D
by

Related questions

For an ordinary Portland cement (A) Residual does not exceed 10% when sieved through IS Sieve No. 9 (B) Soundness varies from 5 to 10 mm (C) Initial setting time is not less than 30 minutes (D) Compressive stress after 7 days, is not less than 175 kg/cm2

Description : For an ordinary Portland cement (A) Residual does not exceed 10% when sieved through IS Sieve No. 9 (B) Soundness varies from 5 to 10 mm (C) Initial setting time is not less than 30 minutes (D) Compressive stress after 7 days, is not less than 175 kg/cm2

Last Answer : (C) Initial setting time is not less than 30 minutes

As per IS specifications, the maximum final setting time for ordinary Portland cement should be (A) 30 minutes (B) 1 hour (C) 6 hours (D) 10 hour

Description : As per IS specifications, the maximum final setting time for ordinary Portland cement should be (A) 30 minutes (B) 1 hour (C) 6 hours (D) 10 hour

Last Answer : Answer: Option D

Tricalcium aluminate (C3A) (A) Reacts fast with water (B) Generates less heat of hydration (C) Causes initial setting and early strength of cement (D) Does not contribute to develop ultimate strength

Description : Tricalcium aluminate (C3A) (A) Reacts fast with water (B) Generates less heat of hydration (C) Causes initial setting and early strength of cement (D) Does not contribute to develop ultimate strength

Last Answer : Answer: Option B

Le Chatelier apparatus is used to determine which of the following properties for cement A) Soundness* b) Initial setting time c) Compressive strength d) Tensile strength

Description : Le Chatelier apparatus is used to determine which of the following properties for cement A) Soundness* b) Initial setting time c) Compressive strength d) Tensile strength

Last Answer : A) Soundness*

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 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

Le-Chatelier's device is used for determining the (A) Setting time of cement (B) Soundness of cement (C) Tensile strength of cement (D) Compressive strength of cement

Description : Le-Chatelier's device is used for determining the (A) Setting time of cement (B) Soundness of cement (C) Tensile strength of cement (D) Compressive strength of cement

Last Answer : Answer: Option B

As compared to ordinary Portland cement, high alumina cement has (A) Higher initial setting time but lower final setting time (B) Lower initial setting time but higher final setting time (C) Higher initial and final setting times (D) Lower initial and final setting times

Description : As compared to ordinary Portland cement, high alumina cement has (A) Higher initial setting time but lower final setting time (B) Lower initial setting time but higher final setting time (C) Higher initial and final setting times (D) Lower initial and final setting times

Last Answer : Answer: Option A

The gypsum is added to the cement for (a) Providing high strength to the cement (b) Controlling the initial setting time of cement. (c) Lowering the clinkering temp of cement (d) All the above.

Description : The gypsum is added to the cement for (a) Providing high strength to the cement (b) Controlling the initial setting time of cement. (c) Lowering the clinkering temp of cement (d) All the above.

Last Answer : (b) Controlling the initial setting time of cement.

Soundness test of cement determines (A) Quality of free lime (B) Ultimate strength (C) Durability (D) Initial setting

Description : Soundness test of cement determines (A) Quality of free lime (B) Ultimate strength (C) Durability (D) Initial setting

Last Answer : Answer: Option A

The initial setting time for ordinary Portland cement as per IS specifications should not be less than (A) 10 minutes (B) 30 minutes (C) 60 minutes (D) 600 minutes

Description : The initial setting time for ordinary Portland cement as per IS specifications should not be less than (A) 10 minutes (B) 30 minutes (C) 60 minutes (D) 600 minutes

Last Answer : Answer: Option B

Explain the method to determine initial and final setting time of cement.

Description : Explain the method to determine initial and final setting time of cement.

Last Answer : Procedure: i. Take 400 gm. of cement sample and add 0.85 times water required for its standard consistency to prepare homogenous cement paste. Note down the time at which water is added to cement as T1 min. ... a cement surface as T3 min. viii. Calculate final setting time i.e. FST = T3-T1 min.

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

According to IS Code , the requirement of an ordinary Portland cement is (a) The residue does not exceed 10% when sieved through is sieve no .9 (b) Its initial setting time is not less than 30 minutes. (c) its expansion is not morethan 10mm for unaerated cement (d) All the above.

Description : According to IS Code , the requirement of an ordinary Portland cement is (a) The residue does not exceed 10% when sieved through is sieve no .9 (b) Its initial setting time is not less than 30 minutes. (c) its expansion is not morethan 10mm for unaerated cement (d) All the above.

Last Answer : (d) All the above.

According to IS specifications, the compressive strength of ordinary Portland cement after three days should not be less than (A) 7 MPa (B) 11.5 MPa (C) 16 MPa (D) 21 MPa

Description : According to IS specifications, the compressive strength of ordinary Portland cement after three days should not be less than (A) 7 MPa (B) 11.5 MPa (C) 16 MPa (D) 21 MPa

Last Answer : Answer: Option C

The compressive strength an ordinary Portland cement (1:3) after 7 days test should not be less than. (a) 11N/mm2 (b) 17.5 N/mm2 (c) 22 N/mm2 (d) 27.5N/m2

Description : The compressive strength an ordinary Portland cement (1:3) after 7 days test should not be less than. (a) 11N/mm2 (b) 17.5 N/mm2 (c) 22 N/mm2 (d) 27.5N/m2

Last Answer : (b) 17.5 N/mm2

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 correct statement from the following: (A) Acid test is done to find out the weathering quality of stones (B) Attrition test is done to find out the rate of wear of stones which are used in road construction (C) Crushing test is done to find out the compressive strength of the stone (D) All the above

Description : Pick up the correct statement from the following: (A) Acid test is done to find out the weathering quality of stones (B) Attrition test is done to find out the rate of wear of stones which are used ... (C) Crushing test is done to find out the compressive strength of the stone (D) All the above

Last Answer : Answer: Option D

Initial setting time of cement for asbestos cement products should be not less than (A) 30 minutes (B) 50 minutes (C) 75 minutes (D) 90 minutes

Description : Initial setting time of cement for asbestos cement products should be not less than (A) 30 minutes (B) 50 minutes (C) 75 minutes (D) 90 minutes

Last Answer : Answer: Option D

Pick up the correct statement about silt soil from the following: (A) The silt soil has particle size from 0.02 mm to 0.06 mm (B) In organic fine grained silt soil possesses no plasticity (C) The least plastic type normally consists of more or less equidimensional grains of quartz (D) All the above

Description : Pick up the correct statement about silt soil from the following: (A) The silt soil has particle size from 0.02 mm to 0.06 mm (B) In organic fine grained silt soil possesses no ... The least plastic type normally consists of more or less equidimensional grains of quartz (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

Minimum compressive strength of cement required at the age of 3 days for ordinary Portland cement of grade 33 is [ A ] 1.15 N/mm2 [ B ] 11.5 N/mm2 [ C ] 2.10 N/mm2 [ D ] 21 N/mm2

Description : Minimum compressive strength of cement required at the age of 3 days for ordinary Portland cement of grade 33 is [ A ] 1.15 N/mm2 [ B ] 11.5 N/mm2 [ C ] 2.10 N/mm2 [ D ] 21 N/mm2

Last Answer : [ B ] 11.5 N/mm2

Pick up the correct statement from the following: (A) High percentage of C3S and low percentage of C2S cause rapid hardening (B) High percentage of C3S and low percentage of C2S make the cement less resistive to chemical attack (C) Low percentage of C3S and high percentage of C2S contribute to slow hardening (D) All the above

Description : Pick up the correct statement from the following: (A) High percentage of C3S and low percentage of C2S cause rapid hardening (B) High percentage of C3S and low percentage of C2S make the cement ... ) Low percentage of C3S and high percentage of C2S contribute to slow hardening (D) All the above

Last Answer : Answer: Option D

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) 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 correct statement from the following: (A) The moment of inertia is calculated about the axis about which bending takes place (B) If tensile stress is less than axial stress, the section experiences compressive stress (C) If tensile stress is equal to axial stress, the section experiences compressive stress (D) All the above

Description : Pick up the correct statement from the following:  (A) The moment of inertia is calculated about the axis about which bending takes place  (B) If tensile stress is less than axial ... tensile stress is equal to axial stress, the section experiences compressive stress  (D) All the above 

Last Answer : (D) All the above 

Portland pozzolana cement possesses (A) Higher resistance to chemical attack (B) Lower heat of hydration (C) Lower shrinkage on drying (D) All the above

Description : Portland pozzolana cement possesses (A) Higher resistance to chemical attack (B) Lower heat of hydration (C) Lower shrinkage on drying (D) All the above

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 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

High copper amalgam lasts longer than low copper amalgam because of:** A. Increased compressive strength B. Increased corrosion resistance C. High creep D. Increased tensile strength E. Decreased setting expansion

Description : High copper amalgam lasts longer than low copper amalgam because of:**  A. Increased compressive strength  B. Increased corrosion resistance  C. High creep  D. Increased tensile strength  E. Decreased setting expansion 

Last Answer : A. Increased compressive strength 

Pick out the wrong statement pertaining to the properties of glasses. Glasses generally have (A) High electrical insulation properties (B) Sharp melting points (C) Low co-efficient of thermal expansion (D) Compressive strength much greater than their tensile strengths

Description : Pick out the wrong statement pertaining to the properties of glasses. Glasses generally have (A) High electrical insulation properties (B) Sharp melting points (C) Low co-efficient of thermal expansion (D) Compressive strength much greater than their tensile strengths

Last Answer : (B) Sharp melting points

Soundness of cement is tested by (A) Vicat's apparatus (B) Le-chatelier apparatus (C) Compressive strength testing apparatus (D) None of these

Description : Soundness of cement is tested by (A) Vicat's apparatus (B) Le-chatelier apparatus (C) Compressive strength testing apparatus (D) None of these

Last Answer : Answer: Option B

For testing compressive strength of cement, the size of cube used is (A) 50 mm (B) 70.6 mm (C) 100 mm (D) 150 mm

Description : For testing compressive strength of cement, the size of cube used is (A) 50 mm (B) 70.6 mm (C) 100 mm (D) 150 mm

Last Answer : B

For testing compressive and tensile strength of cement, the cement mortar is made by mixing cement and standard sand in the proportions of (A) 1 : 2 (B) 1 : 3 (C) 1 : 4 (D) 1 : 6

Description : For testing compressive and tensile strength of cement, the cement mortar is made by mixing cement and standard sand in the proportions of (A) 1 : 2 (B) 1 : 3 (C) 1 : 4 (D) 1 : 6

Last Answer : Answer: Option B

For performing the compressive strength test of cement, the size of cube mould should be (a) 7.06cm (b)75mm (c)80mm (d)All the above

Description : For performing the compressive strength test of cement, the size of cube mould should be (a) 7.06cm (b)75mm (c)80mm (d)All the above

Last Answer : (a) 7.06cm

Which of the following cements is expected to have the highest compressive strength after 3 days (a) Ordinary Portland cement (b) Rapid hardening cement (c) High alumina cement (d) Sulphate resisting cement.

Description : Which of the following cements is expected to have the highest compressive strength after 3 days (a) Ordinary Portland cement (b) Rapid hardening cement (c) High alumina cement (d) Sulphate resisting cement.

Last Answer : (c) High alumina cement

For determining the compressive strength test on cement is, the percentage amount of water to be added as (Pa = Percentage of water for required consistency) [ A ] 0.25 Pa + 2.5 [ B ] 0.25 Pa + 3.5 [ C ] 0.35 Pa + 2.5 [ D ] 0.35 Pa + 3.5

Description : For determining the compressive strength test on cement is, the percentage amount of water to be added as (Pa = Percentage of water for required consistency) [ A ] 0.25 Pa + 2.5 [ B ] 0.25 Pa + 3.5 [ C ] 0.35 Pa + 2.5 [ D ] 0.35 Pa + 3.5

Last Answer : [ B ] 0.25 Pa + 3.5

The compressive strength of cement should not be less than about 110Kg/cm2 after three days & not less than 170Kg/cm2 after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm2 /gm. (A) 800 (B) 1600 (C) 4000 (D) 8500

Description : The compressive strength of cement should not be less than about 110Kg/cm2 after three days & not less than 170Kg/cm2 after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm2 /gm. (A) 800 (B) 1600 (C) 4000 (D) 8500

Last Answer : (B) 1600

To retard the initial setting time of cement, the compound responsible, is (A) Tri-calcium silicate (B) Gypsum (C) Di-calcium silicate (D) Tri-calcium aluminate

Description : To retard the initial setting time of cement, the compound responsible, is (A) Tri-calcium silicate (B) Gypsum (C) Di-calcium silicate (D) Tri-calcium aluminate

Last Answer : Answer: Option B

The basic purpose of a retarder in concrete is (A) To increase the initial setting time of cement paste in concrete (B) To decrease the initial setting time of cement paste in concrete (C) To render the concrete more water tight (D) To improve the workability of concrete mix

Description : The basic purpose of a retarder in concrete is (A) To increase the initial setting time of cement paste in concrete (B) To decrease the initial setting time of cement paste in concrete (C) To render the concrete more water tight (D) To improve the workability of concrete mix

Last Answer : Answer: Option A

If ‘W’ is the percentage of water required for normal consistency of cement, water to be added for determination of initial setting time is (a) 0.50 W (b) 0.62 W (c) 0.75 W (d) 0.85 W

Description : If ‘W’ is the percentage of water required for normal consistency of cement, water to be added for determination of initial setting time is (a) 0.50 W (b) 0.62 W (c) 0.75 W (d) 0.85 W

Last Answer : (d) 0.85 W

Initial setting of cement is caused due to (A) Tri-calcium silicate (B) Di-calcium silicate (C) Tri-calcium aluminate (D) Tetra calcium alumino ferrite

Description : Initial setting of cement is caused due to (A) Tri-calcium silicate (B) Di-calcium silicate (C) Tri-calcium aluminate (D) Tetra calcium alumino ferrite

Last Answer : Answer: Option C

The main constituent of cement which is responsible for initial setting of cement is (A) Di-calcium silicate (B) Tri-calcium silicate (C) Tri-calcium aluminate (D) All of the above

Description : The main constituent of cement which is responsible for initial setting of cement is (A) Di-calcium silicate (B) Tri-calcium silicate (C) Tri-calcium aluminate (D) All of the above

Last Answer : Answer: Option C

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

For construction of structures in sea water, the cement generally preferred to, is (A) Portland-pozzolana cement (B) Quick setting cement (C) Low heat Portland cement (D) Rapid hardening cement

Description : For construction of structures in sea water, the cement generally preferred to, is (A) Portland-pozzolana cement (B) Quick setting cement (C) Low heat Portland cement (D) Rapid hardening cement

Last Answer : Answer: Option A

Portland cement manufactured from pure white chalk and clay but free from iron-oxide, is known as (A) Quick setting cement (B) Rapid hardening cement (C) White cement (D) Low heat Portland cement

Description : Portland cement manufactured from pure white chalk and clay but free from iron-oxide, is known as (A) Quick setting cement (B) Rapid hardening cement (C) White cement (D) Low heat Portland cement

Last Answer : Answer: Option C

Compared to mild steel, cast iron has (i) High compressive strength (ii) High tensile strength (iii) Low compressive strength (iv) Low tensile strength The correct answer is (A) (i) and (ii) (B) (ii) and (iii) (C) (iii) and (iv) (D) (i) and (iv)

Description : Compared to mild steel, cast iron has (i) High compressive strength (ii) High tensile strength (iii) Low compressive strength (iv) Low tensile strength The correct answer is (A) (i) and (ii) (B) (ii) and (iii) (C) (iii) and (iv) (D) (i) and (iv)

Last Answer : Answer: Option D

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

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

Description : 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

Last Answer : Answer: Option C