Hardening of cement occurs at (A) Rapid rate during the first few days and afterwards it continues to increase at a decreased rate (B) Slow rate during the first few days and afterwards it continues to increase at a rapid rate (C) Uniform rate throughout its age (D) None of these

Hardening of cement occurs at
(A) Rapid rate during the first few days and afterwards it continues to increase at a decreased
rate
(B) Slow rate during the first few days and afterwards it continues to increase at a rapid rate
(C) Uniform rate throughout its age
(D) None of these
by

1 Answer

Answer :

Answer: Option D
by

Related questions

The cement whose strength is a little lower than the ordinary cement during the first three months but attains afterwards the same strength, is known as (A) Low-heat Portland cement (B) Rapid hardening Portland cement (C) Portland blast slag cement (D) Portland pozzolana cement

Description : The cement whose strength is a little lower than the ordinary cement during the first three months but attains afterwards the same strength, is known as (A) Low-heat Portland cement (B) Rapid hardening Portland cement (C) Portland blast slag cement (D) Portland pozzolana cement

Last Answer : Answer: Option A

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

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

The high strength of rapid hardening cement at early stage, is due to its (A) Finer grinding (B) Burning at high temperature (C) Increased lime cement (D) Higher content of tricalcium

Description : The high strength of rapid hardening cement at early stage, is due to its (A) Finer grinding (B) Burning at high temperature (C) Increased lime cement (D) Higher content of tricalcium

Last Answer : Answer: Option C

You are asked to construct a massive dam, the type of cement you will use, is (A) Ordinary Portland cement (B) Rapid hardening cement (C) Low heat cement (D) Blast furnace slag cement

Description : You are asked to construct a massive dam, the type of cement you will use, is (A) Ordinary Portland cement (B) Rapid hardening cement (C) Low heat cement (D) Blast furnace slag cement

Last Answer : Answer: Option C

For the construction of thin R.C.C. structures, the type of cement to be avoided, is (A) Ordinary Portland cement (B) Rapid hardening cement (C) Low heat cement (D) Blast furnace slag cement

Description : For the construction of thin R.C.C. structures, the type of cement to be avoided, is (A) Ordinary Portland cement (B) Rapid hardening cement (C) Low heat cement (D) Blast furnace slag cement

Last Answer : Answer: Option D

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

For road pavements, the cement generally used, is (A) Ordinary Portland cement (B) Rapid hardening cement (C) Low heat cement (D) Blast furnace slag cement

Description : For road pavements, the cement generally used, is (A) Ordinary Portland cement (B) Rapid hardening cement (C) Low heat cement (D) Blast furnace slag cement

Last Answer : Answer: Option B

Name the type of cement from the following for canal linings: (A) Sulphate resisting cement (B) Rapid hardening cement (C) Quick setting cement (D) Pozzolana cement

Description : Name the type of cement from the following for canal linings: (A) Sulphate resisting cement (B) Rapid hardening cement (C) Quick setting cement (D) Pozzolana 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

Rapid hardening cement contains (A) Tri-calcium silicate (B) Tri-calcium aluminate (C) Tetra-calcium alumino-ferrite (D) Di-calcium silicate

Description : Rapid hardening cement contains (A) Tri-calcium silicate (B) Tri-calcium aluminate (C) Tetra-calcium alumino-ferrite (D) Di-calcium silicate

Last Answer : Answer: Option A

Which of the following cements is suitable for use in massive concrete structures such as large dams? (A) Ordinary Portland cement (B) Low heat cement (C) Rapid hardening cement (D) Sulphate resisting cement

Description : Which of the following cements is suitable for use in massive concrete structures such as large dams? (A) Ordinary Portland cement (B) Low heat cement (C) Rapid hardening cement (D) Sulphate resisting cement

Last Answer : Answer: Option B

Rapid hardening cement attains early strength due to (A) Larger proportion of lime grounded finer than normal cement (B) Lesser proportion of lime grounded coarser than normal cement (C) Lesser proportion of lime grounded finer than normal cement (D) Excess percentage of gypsum

Description : Rapid hardening cement attains early strength due to (A) Larger proportion of lime grounded finer than normal cement (B) Lesser proportion of lime grounded coarser than normal cement (C) Lesser proportion of lime grounded finer than normal cement (D) Excess percentage of gypsum

Last Answer : Answer: Option A

Which of the following cements contains maximum percentage of dicalcium silicate? (A) Ordinary Portland cement (B) Low heat cement (C) Rapid hardening cement (D) Sulphate resisting cement

Description : Which of the following cements contains maximum percentage of dicalcium silicate? (A) Ordinary Portland cement (B) Low heat cement (C) Rapid hardening cement (D) Sulphate resisting cement

Last Answer : Answer: Option B

Early attainment of strength in rapid hardening cement is mainly due to (A) Gypsum (B) Finer grinding (C) Tri-calcium silicate (D) Tri-calcium aluminate

Description : Early attainment of strength in rapid hardening cement is mainly due to (A) Gypsum (B) Finer grinding (C) Tri-calcium silicate (D) Tri-calcium aluminate

Last Answer : Answer: Option B

Which of the following statements is correct? (a) Sulphate resisting cement is particularly used for canal lining. (b) Low heat cement should not be used for thin concrete structures. (c) Rapid hardening cement should not be used for massive concrete structures (d) All of the above

Description : Which of the following statements is correct? (a) Sulphate resisting cement is particularly used for canal lining. (b) Low heat cement should not be used for thin concrete structures. (c) Rapid hardening cement should not be used for massive concrete structures (d) All of the above

Last Answer : (d) All of the above

Rapid hardening cement is used (a) Where high early strength is desired (b) Where form work is to be removed as early as possible (c) For construction of road pavements. (d) All of the above

Description : Rapid hardening cement is used (a) Where high early strength is desired (b) Where form work is to be removed as early as possible (c) For construction of road pavements. (d) All of the above

Last Answer : (d) All of the above

High percentage of tricalcium silicate and low percentage of dicalcium silicate in cement results in. (a) Rapid hardening (b) High early strength (c) High heat of generation (d) All the above

Description : High percentage of tricalcium silicate and low percentage of dicalcium silicate in cement results in. (a) Rapid hardening (b) High early strength (c) High heat of generation (d) All the above

Last Answer : (d) All the above

For mass concrete work, the type of cement preferable is [ A ] Ordinary Portland cement [ B ] Rapid hardening cement [ C ] Low heat cement [ D ] Blast furnace slag cement

Description : For mass concrete work, the type of cement preferable is [ A ] Ordinary Portland cement [ B ] Rapid hardening cement [ C ] Low heat cement [ D ] Blast furnace slag cement

Last Answer : [ C ] Low heat cement

For road pavements, the cement generally used, is [ A ] Ordinary Portland cement [ B ] Rapid hardening cement [ C ] Low heat cement [ D ] Blast furnace slag cement

Description : For road pavements, the cement generally used, is [ A ] Ordinary Portland cement [ B ] Rapid hardening cement [ C ] Low heat cement [ D ] Blast furnace slag cement

Last Answer : [ A ] Ordinary Portland cement

When compared to ordinary Portland cement, Rapid hardening Portland cement contains ______________ amount of lime content [ A ] Equal [ B ] Greater [ C ] Lesser [ D ] Zero

Description : When compared to ordinary Portland cement, Rapid hardening Portland cement contains ______________ amount of lime content [ A ] Equal [ B ] Greater [ C ] Lesser [ D ] Zero

Last Answer : [ B ] Greater

To ensure uniform pressure distribution, the thickness of the foundation, isA) Kept uniform throughout (B) Increased gradually towards the edge (C) Decreased gradually towards the edge (D) Kept zero at the edge

Description : To ensure uniform pressure distribution, the thickness of the foundation, is A) Kept uniform throughout (B) Increased gradually towards the edge (C) Decreased gradually towards the edge (D) Kept zero at the edge

Last Answer : Answer: Option C

Which type of following cement is used for mass concrete work a) High Alumina cement b) Quick setting cement c) Rapid hardening cement d) Low heat cement*

Description : Which type of following cement is used for mass concrete work a) High Alumina cement b) Quick setting cement c) Rapid hardening cement d) Low heat cement*

Last Answer : d) Low heat cement*

Which cement should not be used for bridge slabs ro RCC frames a) OPC b) Portland Pozzolana cement * c) Portland furnace slag cement d) Rapid hardening cement

Description : Which cement should not be used for bridge slabs ro RCC frames a) OPC b) Portland Pozzolana cement * c) Portland furnace slag cement d) Rapid hardening cement

Last Answer : b) Portland Pozzolana cement *

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

During the process of hardening of cement, _______ will takes place [ A ] Bleeding [ B ] Segregation [ C ] Hydration [ D ] All the above

Description : During the process of hardening of cement, _______ will takes place [ A ] Bleeding [ B ] Segregation [ C ] Hydration [ D ] All the above

Last Answer : [ C ] Hydration

Assertion A : Pure lime takes a long time to develop adequate strength. Reason R : Pure lime has slow hardening characteristics. Select your answer according to the coding system given below: (A) Both A and R is true and R is correct explanation of A (B) Both A and R is true and R is not a correct explanation of A (C) A is true but R is false (D) A is false but R is true

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Last Answer : Answer: Option A

Which of the following is NOT a characteristic of glass ionomer cements? a. strong in compression but weaker in tension True b. the matrix is formed during the initial set of the cement c. sets via an ion exchange reaction that continues for at least 24 hours true d. suitable for use as a core build up material in anterior teeth

Description : Which of the following is NOT a characteristic of glass ionomer cements? a. strong in compression but weaker in tension True b. the matrix is formed during the initial set of the cement c. sets via ... for at least 24 hours true d. suitable for use as a core build up material in anterior teeth

Last Answer : d. suitable for use as a core build up material in anterior teeth

An increase in the number of new cells in an organ or tissue that is reversible when the stimulus for production of new cells is removed is termed a) Hyperplasia. Hyperplasia occurs as cells multiply and are subjected to increased stimulation resulting in tissue mass enlargement. b) Hypertrophy. Hypertrophy is an increase in size and bulk of tissue that does not result from an increased number of cells. c) Atrophy. Atrophy refers to reduction in size of a structure after having come to full maturity. d) Neoplasia. With neoplasia, the increase in the number of new cells in an organ or tissue continues after the stimulus is removed.

Description : An increase in the number of new cells in an organ or tissue that is reversible when the stimulus for production of new cells is removed is termed a) Hyperplasia. Hyperplasia occurs as cells multiply ... in the number of new cells in an organ or tissue continues after the stimulus is removed.

Last Answer : a) Hyperplasia. Hyperplasia occurs as cells multiply and are subjected to increased stimulation resulting in tissue mass enlargement.

Work that continues throughout the project and does not relate to any specific phase of development is termed a(n) a) Milestone b) Project function c) Activity d) Task e) Baseline.

Description : Work that continues throughout the project and does not relate to  any specific phase of development is termed a(n) a) Milestone b) Project function c) Activity d) Task e) Baseline.

Last Answer : b) Project function

Sooty and sulphurous smog formed due to combustion of fossil fuels particularly in winter, continues throughout the day and night. When the moist atmospheric air's water vapor condenses on the solid particles of smoke thereby forming smog (smoke + fog), it causes (A) Poor visibility due to sky darkening (B) Irritation in eyes (C) Respiratory trouble (D) All (A), (B) and (C)

Description : Sooty and sulphurous smog formed due to combustion of fossil fuels particularly in winter, continues throughout the day and night. When the moist atmospheric air's water vapor condenses on the solid particles of smoke thereby ... B) Irritation in eyes (C) Respiratory trouble (D) All (A), (B) and (C)

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

Spacing of stirrups in a rectangular beam, is (A) Kept constant throughout the length (B) Decreased towards the centre of the beam (C) Increased at the ends (D) Increased at the centre of the beam

Description : Spacing of stirrups in a rectangular beam, is (A) Kept constant throughout the length (B) Decreased towards the centre of the beam (C) Increased at the ends (D) Increased at the centre of the beam

Last Answer : Answer: Option D

In rapid eye movement sleep, the following are seen: a. increased heart rate b. increased systolic blood pressure c. decreased respiratory rate d. all above

Description : In rapid eye movement sleep, the following are seen: a. increased heart rate b. increased systolic blood pressure c. decreased respiratory rate d. all above

Last Answer : increased systolic blood pressure

__________ of a material results, when its strength is increased & ductility is decreased by heating at a relatively lower temperature after cold working. (A) Solid solution hardening (B) Screw dislocation (C) Strain ageing (D) Twinning

Description : __________ of a material results, when its strength is increased & ductility is decreased by heating at a relatively lower temperature after cold working. (A) Solid solution hardening (B) Screw dislocation (C) Strain ageing (D) Twinning

Last Answer : (C) Strain ageing

If a constant section beam is subjected to a uniform bending moment throughout, its length bends to (A) A circular arc (B) A parabolic arc (C) A catenary (D) None of these

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Last Answer : (A) A circular arc 

A beam is said to be of uniform strength, if (A) B.M. is same throughout the beam (B) Shear stress is same throughout the beam (C) Deflection is same throughout the beam (D) Bending stress is same at every section along its longitudinal axis

Description : A beam is said to be of uniform strength, if (A) B.M. is same throughout the beam (B) Shear stress is same throughout the beam (C) Deflection is same throughout the beam (D) Bending stress is same at every section along its longitudinal axis

Last Answer : (D) Bending stress is same at every section along its longitudinal axis

Which one of the following statements is not correct with respect to PSC beams? (a) Loss due to shrinkage is proportional to water-cement ratio used in concrete (b) Loss due to creep is proportional to the age of the member at the time of loading. (c) Loss due to elastic deformation is directly proportionally to the modulus of elasticity of concrete (d) Loss due to friction occurs in post tensioned concrete members

Description : Which one of the following statements is not correct with respect to PSC beams? (a) Loss due to shrinkage is proportional to water-cement ratio used in concrete (b) Loss due to creep is ... to the modulus of elasticity of concrete (d) Loss due to friction occurs in post tensioned concrete members

Last Answer : (c) Loss due to elastic deformation is directly proportionally to the modulus of elasticity of concrete

The following assumption is not true in the theory of pure torsion: (A) The twist along the shaft is uniform (B) The shaft is of uniform circular section throughout (C) Cross-section of the shaft, which is plane before twist remains plane after twist (D) All radii get twisted due to torsion

Description : The following assumption is not true in the theory of pure torsion:  (A) The twist along the shaft is uniform  (B) The shaft is of uniform circular section throughout  (C) Cross- ... , which is plane before twist remains plane after twist  (D) All radii get twisted due to torsion 

Last Answer : (D) All radii get twisted due to torsion 

A beam is said to be of uniform strength, if (A) B.M. is same throughout the beam (B) Deflection is same throughout the beam (C) Bending stress is same throughout the beam (D) Shear stress is same throughout the beam

Description : A beam is said to be of uniform strength, if (A) B.M. is same throughout the beam (B) Deflection is same throughout the beam (C) Bending stress is same throughout the beam (D) Shear stress is same throughout the beam

Last Answer : (C) Bending stress is same throughout the beam

The direct shear test suffers from the following disadvantage: (A) Drain condition cannot be controlled (B) Pore water pressure cannot be measured (C) Shear stress on the failure plane is not uniform (D) The area under the shear and vertical loads does not remain constant throughout the test

Description : The direct shear test suffers from the following disadvantage: (A) Drain condition cannot be controlled (B) Pore water pressure cannot be measured (C) Shear stress on the failure plane is not uniform (D) The area under the shear and vertical loads does not remain constant throughout the test

Last Answer : Answer: Option C

Contact pressure beneath a rigid footing resting on cohesive soil is (A) Less at edges compared to middle (B) More at edges compared to middle (C) Uniform throughout (D) None of the above

Description : Contact pressure beneath a rigid footing resting on cohesive soil is (A) Less at edges compared to middle (B) More at edges compared to middle (C) Uniform throughout (D) None of the above

Last Answer : Answer: Option B

The base of a column is subjected to moment. If the intensity of bearing pressure due to axial load is equal to stress due to moment, then the bearing pressure between the base and the concrete is (a) Uniform compression throughout (b) Zero at one end and compression at the other end (c) Tension at one end and compression at the other end (d) Compression, verying as a parabolic profile

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Last Answer : (b) Zero at one end and compression at the other end

Which one of the following is the correct ratio of plastic moment to yield moment for a simply supported beam of uniform square cross section throughout the span (a) 1.5 (b) 1.7 (c) 2.0 (d) 2.34

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Last Answer : (a) 1.5

A high velocity of wash water is required for (A) Rapid gravity filter with strainers (B) Rapid gravity filter without strainers (C) Slow sand filter with strainers (D) Slow sand filter without strainers

Description : A high velocity of wash water is required for (A) Rapid gravity filter with strainers (B) Rapid gravity filter without strainers (C) Slow sand filter with strainers (D) Slow sand filter without strainers

Last Answer : (B) Rapid gravity filter without strainers

Rapid sand filter (A) Should be preceded by coagulation and sedimentation (B) Uses rapid sand as filter media(C) Is used after slow sand filtering has been done (D) Can combine disinfection also

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Last Answer : (A) Should be preceded by coagulation and sedimentation

The yield of a rapid gravity filter as compared to that of slow sand filter, is (A) 10 times (B) 15 times (C) 20 times (D) 30 times

Description : The yield of a rapid gravity filter as compared to that of slow sand filter, is (A) 10 times (B) 15 times (C) 20 times (D) 30 times

Last Answer : (D) 30 times

Distribution of wash water is provided in (A) Sedimentation tank (B) Slow sand filter (C) Rapid gravity filter (D) All the above

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Last Answer : (C) Rapid gravity filter

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Last Answer : (D) All the above 

Quick lime is (i) Slow in setting (ii) Rapid in slacking (iii) Good in strength The correct answer is (A) Only (i) (B) Only (ii) (C) Both (i) and (ii) (D) Both (ii) and (

Description : Quick lime is (i) Slow in setting (ii) Rapid in slacking (iii) Good in strength The correct answer is (A) Only (i) (B) Only (ii) (C) Both (i) and (ii) (D) Both (ii) and (

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