Which one of the following represents an activity? (A) Excavation for foundation (B) Curing of concrete (C) Setting of question paper (D) All the above

Which one of the following represents an activity?
(A) Excavation for foundation
(B) Curing of concrete
(C) Setting of question paper
(D) All the above
by

1 Answer

Answer :

(D) All the above
by

Related questions

For providing a raft foundation, the following activities are involved 1. Ramming the foundation bed 2. Excavation of the soil upto required depth 3. Laying the reinforcement over the foundation bed 4. Curing the cement concrete placed over reinforcement 5. Pouring the cement concrete over the reinforcement The correct sequence is (A) 1, 2, 3, 4, 5 (B) 5, 4, 3, 2, 1 (C) 2, 1, 3, 5, 4 (D) 3, 2, 5, 1,

Description : For providing a raft foundation, the following activities are involved 1. Ramming the foundation bed 2. Excavation of the soil upto required depth 3. Laying the reinforcement over the foundation bed 4. Curing the cement concrete placed over ... 2, 1 (C) 2, 1, 3, 5, 4 (D) 3, 2, 5, 1, 4

Last Answer : Answer: Option C

In the given figure, the network of a project represents (A) Activity of an excavation of a footing (B) Activity of an excavation which starts at event No. 1 and ends at even No. 2 (C) Activity of excavation which takes 8 units of time (D) None of thes

Description : In the given figure, the network of a project represents (A) Activity of an excavation of a footing (B) Activity of an excavation which starts at event No. 1 and ends at even No. 2 (C) Activity of excavation which takes 8 units of time (D) None of thes

Last Answer : (C) Activity of excavation which takes 8 units of time

The process of conversion of plastic concrete to solid stage is called [ A ] Hydration [ B ] Hardening [ C ] Setting [ D ] Curing

Description : The process of conversion of plastic concrete to solid stage is called [ A ] Hydration [ B ] Hardening [ C ] Setting [ D ] Curing

Last Answer : [ C ] Setting

The rate of payment is made for 100 cu m (per % cu m) in case of (A) Earth work in excavation (B) Rock cutting (C) Excavation in trenches for foundation (D) All the above

Description : The rate of payment is made for 100 cu m (per % cu m) in case of (A) Earth work in excavation (B) Rock cutting (C) Excavation in trenches for foundation (D) All the above

Last Answer : (D) All the above

The following item of earth work is not measured separately. (A) Setting out of works (B) Site clearance (C) Steps in deep excavation (D) All the above

Description : The following item of earth work is not measured separately. (A) Setting out of works (B) Site clearance (C) Steps in deep excavation (D) All the above

Last Answer : (D) All the above

For the supply of materials for concrete, form work reinforcing and placing of concrete, removal of form work and curing of concrete, number of bar(s) required on bar chart, is (A) 1 (B) 2 (C) 3 (D) 4

Description : For the supply of materials for concrete, form work reinforcing and placing of concrete, removal of form work and curing of concrete, number of bar(s) required on bar chart, is (A) 1 (B) 2 (C) 3 (D) 4

Last Answer : (A) 1

Curing (A) Reduces the shrinkage of concrete (B) Preserves the properties of concrete (C) Prevents the loss of water by evaporation (D) All of the above

Description : Curing (A) Reduces the shrinkage of concrete (B) Preserves the properties of concrete (C) Prevents the loss of water by evaporation (D) All of the above

Last Answer : (D) All of the above

The process of proper and accurate measurement of concrete ingredients for uniformity of proportion, is known (A) Grading (B) Curing (C) Mixing (D) Batching

Description : The process of proper and accurate measurement of concrete ingredients for uniformity of proportion, is known (A) Grading (B) Curing (C) Mixing (D) Batching

Last Answer : (D) Batching

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 produce impermeable concrete (A) Thorough mixing of concrete is required (B) Proper compaction of concrete is required (C) Proper curing of concrete is required (D) All the above

Description : The produce impermeable concrete (A) Thorough mixing of concrete is required (B) Proper compaction of concrete is required (C) Proper curing of concrete is required (D) All the above

Last Answer : Answer: Option D

The process of hardening the concrete by keeping its surface moist is known (A) Placing (B) Wetting (C) Curing (D) Compacting

Description : The process of hardening the concrete by keeping its surface moist is known (A) Placing (B) Wetting (C) Curing (D) Compacting

Last Answer : Answer: Option C

The process of keeping concrete moist for a certain period after its finishing, is known as (A) Finishing of concrete (B) Curing of concrete (C) Placing of concrete (D) Compaction of concrete

Description : The process of keeping concrete moist for a certain period after its finishing, is known as (A) Finishing of concrete (B) Curing of concrete (C) Placing of concrete (D) Compaction of concrete

Last Answer : Answer: Option B

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

Modulus of elasticity of concrete is increased with (a) Higher W/C ratio (b) Shorter curing period (c) Lesser vibration (d) Increase in age

Description : Modulus of elasticity of concrete is increased with (a) Higher W/C ratio (b) Shorter curing period (c) Lesser vibration (d) Increase in age

Last Answer : (d) Increase in age

The object of curing is to (a) Prevent the loss of water by evaporation. (b) Reduce the shrinkage of concrete (c) Preserve the properties of concrete (d) All of these

Description : The object of curing is to (a) Prevent the loss of water by evaporation. (b) Reduce the shrinkage of concrete (c) Preserve the properties of concrete (d) All of these

Last Answer : (d) All of these

The process of consolidating concrete mix after placing it in position is termed as. (a) Curing (b) Wetting (c) Compaction (d) All of these

Description : The process of consolidating concrete mix after placing it in position is termed as. (a) Curing (b) Wetting (c) Compaction (d) All of these

Last Answer : (c) Compaction

Blast furnace slag cement concrete requires ___________time for shuttering and curing. (a) Less (b) More (c) Medium (d) All the above

Description : Blast furnace slag cement concrete requires ___________time for shuttering and curing. (a) Less (b) More (c) Medium (d) All the above

Last Answer : (b) More

For Ordinary Portland cement concrete exposed to dry and hot weather conditions, good moist curing period is [ A ] 7 days [ B ] 10 days [ C ] 14 days [ D ] None of the above

Description : For Ordinary Portland cement concrete exposed to dry and hot weather conditions, good moist curing period is [ A ] 7 days [ B ] 10 days [ C ] 14 days [ D ] None of the above

Last Answer : [ B ] 10 days

Modulus of elasticity of concrete is primarily influenced by [ A ] Elastic properties of aggregate [ B ] Curing of concrete [ C ] Age of concrete [ D ] Mix proportion and type of cement

Description : Modulus of elasticity of concrete is primarily influenced by [ A ] Elastic properties of aggregate [ B ] Curing of concrete [ C ] Age of concrete [ D ] Mix proportion and type of cement

Last Answer : [ A ] Elastic properties of aggregate

The process of proper and accurate measurement of concrete ingredients for uniformity of proportion, is known as [ A ] Curing [ B ] Mixing [ C ] Grading [ D ] Batching

Description : The process of proper and accurate measurement of concrete ingredients for uniformity of proportion, is known as [ A ] Curing [ B ] Mixing [ C ] Grading [ D ] Batching

Last Answer : [ D ] Batching

At 28 days of curing concrete attains a strength of [ A ] 20 to 25% [ B ] 60 to 70% [ C ] 65 to 80% [ D ] 90 to 95%

Description : At 28 days of curing concrete attains a strength of [ A ] 20 to 25% [ B ] 60 to 70% [ C ] 65 to 80% [ D ] 90 to 95%

Last Answer : [ D ] 90 to 95%

The process of keeping the concrete structure moist is called [ A ] Hydration [ B ] Curing [ C ] Creep [ D ] Shrinkage

Description : The process of keeping the concrete structure moist is called [ A ] Hydration [ B ] Curing [ C ] Creep [ D ] Shrinkage

Last Answer : [ B ] Curing

The process of hardening of concrete in the presence of water is called [ A ] Creep [ B ] Hydration [ C ] Shrinkage [ D ] Curing

Description : The process of hardening of concrete in the presence of water is called [ A ] Creep [ B ] Hydration [ C ] Shrinkage [ D ] Curing

Last Answer : [ B ] Hydration

If P kg/m2 is the upward pressure on the slab of a plain concrete footing whose projection on either side of the wall is a cm, the depth of foundation D is given by (A) D = 0.00775 aP (B) D = 0.0775 aP (C) D = 0.07775 aP (D) D = 0.775 Pa

Description : If P kg/m2 is the upward pressure on the slab of a plain concrete footing whose projection on either side of the wall is a cm, the depth of foundation D is given by (A) D = 0.00775 aP (B) D = 0.0775 aP (C) D = 0.07775 aP (D) D = 0.775 Pa

Last Answer : Answer: Option A

The measurement is made in square metre in case of (A) Cement concrete in foundation (B) R.C.C. structure (C) Hollow concrete block wall (D) None of these

Description : The measurement is made in square metre in case of (A) Cement concrete in foundation (B) R.C.C. structure (C) Hollow concrete block wall (D) None of these

Last Answer : (D) None of these

Pick up the PERT event from the following: (A) Digging of foundation started (B) Digging of foundation completed (C) Laying of concrete started (D) All the above

Description : Pick up the PERT event from the following: (A) Digging of foundation started (B) Digging of foundation completed (C) Laying of concrete started (D) All the above

Last Answer : (D) All the above

The depth of concrete bed of the foundation depends upon (A) The projection of the concrete block beyond the footing over it (B) The upward soil pressure (C) The mix of the concrete (D) All the above

Description : The depth of concrete bed of the foundation depends upon (A) The projection of the concrete block beyond the footing over it (B) The upward soil pressure (C) The mix of the concrete (D) All the above

Last Answer : Answer: Option D

Describe Briefly The Various Methods Of Concrete Curing?

Description : Describe Briefly The Various Methods Of Concrete Curing?

Last Answer : Answer : Curing is the process of maintaining the moisture and temperature conditions for freshly deployed concrete. This is done for small duration of time to allow the hardening of concrete. The methods that ... can be applied on curing surface. This keeps the surface wet for a very long time.

Explain the significance of batching, compaction and curing of concrete.

Description : Explain the significance of batching, compaction and curing of concrete. 

Last Answer : Significance of Batching: 1. If the batching of materials required for concrete is not done appropriately, then random quantity of materials produce non-homogeneous concrete, which further leads to various ... . 3. Curing is necessary to make the concrete impermeable in nature its hardened state.

Classify the methods of curing of concrete with detail explanation of any one method.

Description : Classify the methods of curing of concrete with detail explanation of any one method.

Last Answer : Methods of curing: A. Water curing B. Membrane curing C. Application of heat D. Miscellaneous methods 1. Water curing: i) This is the best method of curing, because it satisfies all ... the surface prevents the mixed water from evaporation and thereby keeps the concrete wet for a long time. 

Which of the following does not represent an activity? (A) Site located (B) Foundation is being dug (C) The office area is being cleaned (D) The invitations are being sent

Description : Which of the following does not represent an activity? (A) Site located (B) Foundation is being dug (C) The office area is being cleaned (D) The invitations are being sent

Last Answer : A

Curing of tea leaves is brought about by the activity of (a) fungi (b) bacteria (c) mycorrhiza (d) viruses.

Description : Curing of tea leaves is brought about by the activity of (a) fungi (b) bacteria (c) mycorrhiza (d) viruses.

Last Answer : (b) bacteria

Deviation of the actual road gradient from the proposed contour gradient uphill side, involves (A) Embankment on the centre line (B) Excavation on the centre line (C) Earth work on the centre line (D) None of these

Description : Deviation of the actual road gradient from the proposed contour gradient uphill side, involves  (A) Embankment on the centre line  (B) Excavation on the centre line  (C) Earth work on the centre line  (D) None of these

Last Answer : (B) Excavation on the centre line 

channel is said to be of most economical cross-section, if (A) It gives maximum discharge for a given cross-sectional area and bed slope (B) It has minimum wetted perimeter (C) It involves lesser excavation for the designed amount of discharge (D) All of the above

Description : channel is said to be of most economical cross-section, if (A) It gives maximum discharge for a given cross-sectional area and bed slope (B) It has minimum wetted perimeter (C) It involves lesser excavation for the designed amount of discharge (D) All of the above

Last Answer : Answer: Option D

The expected out turn for earth work in excavation in ordinary soil per workman per day is (A) 1.00 cum (B) 2.00 cum (C) 3.00 cum (D) 4.00 cum

Description : The expected out turn for earth work in excavation in ordinary soil per workman per day is (A) 1.00 cum (B) 2.00 cum (C) 3.00 cum (D) 4.00 cum

Last Answer : (C) 3.00 cum

The cost of the earthwork in excavation for the surface drain of cross-section shown in the given figure for a total length of 5 metres @ Rs. 450% cum, is (A) Rs. 400 (B) Rs. 425 (C) Rs. 450 (D) Rs. 500

Description : The cost of the earthwork in excavation for the surface drain of cross-section shown in the given figure for a total length of 5 metres @ Rs. 450% cum, is (A) Rs. 400 (B) Rs. 425 (C) Rs. 450 (D) Rs. 500

Last Answer : (C) Rs. 450

Pick up the excavation where measurements are made in square metres for payment. (A) Ordinary cuttings up to 1 m (B) Surface dressing up to 15 cm depths (C) Surface excavation up to 30 cm depths (D) Both (b) and (c)

Description : Pick up the excavation where measurements are made in square metres for payment. (A) Ordinary cuttings up to 1 m (B) Surface dressing up to 15 cm depths (C) Surface excavation up to 30 cm depths (D) Both (b) and (c)

Last Answer : (D) Both (b) and (c)

The excavation exceeding 1.5 m in width and 10 sq.m in plan area with a depth not exceeding 30 cm, is termed as (A) Excavation (B) Surface dressing (C) Cutting (D) Surface excavation

Description : The excavation exceeding 1.5 m in width and 10 sq.m in plan area with a depth not exceeding 30 cm, is termed as (A) Excavation (B) Surface dressing (C) Cutting (D) Surface excavation

Last Answer : (D) Surface excavation

Pick up the correct statement from the following: (A) In order to check up the average depth of excavation, 'Dead man s' are left at the midwidths of borrow pits (B) The earthwork calculation in excavation is made from the difference in levels obtained with a level (C) The earth work in excavation to form the road embankment includes the formation of correct profile and depositing the soil in layers (D) All the above

Description : Pick up the correct statement from the following: (A) In order to check up the average depth of excavation, 'Dead man s' are left at the midwidths of borrow pits (B) The earthwork ... embankment includes the formation of correct profile and depositing the soil in layers (D) All the above

Last Answer : (D) All the above

If the excavation of earth is done manually then it costs Rs. 10 per cum. A machine can excavate at a fixed cost of Rs. 4000 plus a variable cost of Rs. 2 per cum. The quantity of earth for which the cost of excavation by machine will be equal to the cost of manual excavation is (A) 500 cum (B) 1000 cum (C) 1500 cum (D) 2000 cum

Description : If the excavation of earth is done manually then it costs Rs. 10 per cum. A machine can excavate at a fixed cost of Rs. 4000 plus a variable cost of Rs. 2 per cum. The quantity of earth for which the cost ... the cost of manual excavation is (A) 500 cum (B) 1000 cum (C) 1500 cum (D) 2000 cum

Last Answer : (A) 500 cum

The depth of excavation of foundations, is generally measured with a (A) Ranging rod (B) Steel tape (C) Levelling staff (D) Boning rod

Description : The depth of excavation of foundations, is generally measured with a (A) Ranging rod (B) Steel tape (C) Levelling staff (D) Boning rod

Last Answer : Answer: Option D

If the depth of an excavation is 20 metres, number of single stage well points to be installed at various levels, is (A) 5 (B) 4 (C) 3 (D) 2

Description : If the depth of an excavation is 20 metres, number of single stage well points to be installed at various levels, is (A) 5 (B) 4 (C) 3 (D) 2

Last Answer : Answer: Option C

The single stage well point system of dewatering an excavation can be used if the depth of excavation does not exceed (A) 5 m (B) 10 m (C) 15 m (D) 20 m

Description : The single stage well point system of dewatering an excavation can be used if the depth of excavation does not exceed (A) 5 m (B) 10 m (C) 15 m (D) 20 m

Last Answer : Answer: Option A

A contractor wishes to determine a suitable combination of manual labour and machine work for the excavation of a multistory construction. For every cum of excavation, 3 man-hours are needed; or 0.2 machine-hour. Costs involved are Rs. 20 per man-hour and Rs. 500 per machine-hour. The total quantity of excavation is estimated to be 4,000 cum. The optimal quantity of excavation to be done manually for minimum total cost will be (a) 1500 cum (b) 1800 cum (c) 2250 cum (d) 2500 cum

Description : A contractor wishes to determine a suitable combination of manual labour and machine work for the excavation of a multistory construction. For every cum of excavation, 3 man-hours are needed; or 0.2 machine-hour. Costs ... total cost will be (a) 1500 cum (b) 1800 cum (c) 2250 cum (d) 2500 cum

Last Answer : (d) 2500 cum

The effect of adding calcium chloride in concrete is (i) To increase shrinkage (ii) To decrease shrinkage (iii) To increase setting time (iv) To decrease setting time The correct answer is (A) (i) and (iii) (B) (i) and (iv) (C) (ii) and (iii) (D) (ii) and (iv)

Description : The effect of adding calcium chloride in concrete is (i) To increase shrinkage (ii) To decrease shrinkage (iii) To increase setting time (iv) To decrease setting time The correct answer is (A) (i) and (iii) (B) (i) and (iv) (C) (ii) and (iii) (D) (ii) and (iv)

Last Answer : (B) (i) and (iv)

The impurity of mixing water which affects the setting time and strength of concrete, is (A) Sodium sulphates (B) Sodium chlorides (C) Sodium carbonates and bicarbonates (D) Calcium bicarbonates

Description : The impurity of mixing water which affects the setting time and strength of concrete, is (A) Sodium sulphates (B) Sodium chlorides (C) Sodium carbonates and bicarbonates (D) Calcium bicarbonates

Last Answer : Answer: Option C

Admixtures which cause early setting and hardening of concrete are called (A) Workability admixtures (B) Accelerators (C) Retarders (D) Air entraining agents

Description : Admixtures which cause early setting and hardening of concrete are called (A) Workability admixtures (B) Accelerators (C) Retarders (D) Air entraining agents

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

When the steel bars are embedded in concrete. The concrete after setting, adheres to the surface of the bars and thus resist any force that tends to pull or push this road. The intensity of this adhesive force is called. (a) Bond stress (b) Shear stress (c) Compressive stress (d) All of these

Description : When the steel bars are embedded in concrete. The concrete after setting, adheres to the surface of the bars and thus resist any force that tends to pull or push this road. The intensity of this adhesive force is called. (a) Bond stress (b) Shear stress (c) Compressive stress (d) All of these

Last Answer : (a) Bond stress

High temp_______________the setting time of cement in concrete (a) Increases (b) Decreases (c) No effect (d) None of these

Description : High temp_______________the setting time of cement in concrete (a) Increases (b) Decreases (c) No effect (d) None of these

Last Answer : (b) Decreases