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PSC PYQ > Estimation > Flashcards

Estimation Flashcards

1
Q

What is a detailed estimate?

A

Preparation of estimate by considering all items of work, working out quantity, and determining the cost of each item. 3-5% of total estimated cost is allowed for contingencies.

A detailed estimate is essential for accurate budgeting and project planning.

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2
Q

What is an approximate estimate?

A

Required for administrative approval of project. 5-10% of total estimated cost is allowed for contingencies.

This type of estimate is generally less precise and is used in the early stages of project planning.

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3
Q

What is the plinth area method?

A

Total cost = plinth area x rate per area.

This method provides a quick estimate based on the total floor area of a building.

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4
Q

What is the cubical content method?

A

Total cost = volume of building x rate per volume.

This method is useful for estimating costs based on the overall volume of the structure.

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5
Q

What is the formula for the Unit base method?

A

Total cost = Total no. of unit x rate per unit

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6
Q

In the context of schools and colleges, how is a student considered in the Unit base method?

A

A student is considered as a single unit

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7
Q

In hospitals, what is considered as a single unit in the Unit base method?

A

A bed is considered as a single unit

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8
Q

What is the Approximate quantity method?

A

Total length of wall is calculated in running metres and multiplied by the rate per metre length of wall

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9
Q

Is the Approximate quantity method commonly used?

A

Rarely used

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10
Q

What is the basis for preparing the approximate method?

A

Practical knowledge and the cost of similar works

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11
Q

What is a revised estimate?

A

A detailed estimate prepared under specific circumstances

Circumstances include material deviation, exceeding the original sanctioned estimate by 5%, or exceeding expenditure by 10% compared to administrative sanction.

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12
Q

What must accompany a revised estimate?

A

Comparative statement

This statement usually compares the revised estimate with the original estimate.

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13
Q

What is a supplementary estimate?

A

A detailed estimate prepared for additional works required

This is also known as a fresh detailed estimate for additional work.

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14
Q

When is a revised estimate prepared?

A

When there is a material deviation or when certain financial thresholds are exceeded

These thresholds include exceeding the original sanctioned estimate by 5% or exceeding expenditure by 10%.

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15
Q

Fill in the blank: A revised estimate is prepared when the original sanctioned estimate is exceeded by _______.

A

5%

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16
Q

Fill in the blank: A revised estimate is prepared when expenditure exceeds _______ than administrative sanction.

A

10%

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17
Q

What is Lead in the context of earthwork?

A

Average horizontal distance between site of earth work and disposal area.

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18
Q

What is Lift in earthwork?

A

Average vertical distance between level of excavation and to the place of spreading or heaping.

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19
Q

What is the initial lead (normal lead) value used in analysis of rates?

A

50 m

20
Q

What is the lift value taken in analysis of rates?

A

1.5 m

21
Q

If lead is greater than 50 m or lift is greater than 1.5 m, what must be included in the estimate?

A

A provision for additional amount.

22
Q

Fill in the blank: Average horizontal distance between site of earth work and disposal area is known as _______.

A

[Lead]

23
Q

Fill in the blank: Average vertical distance between level of excavation and to the place of spreading or heaping is known as _______.

A

[Lift]

24
Q

What is the capacity of skilled labor for doing work in the form of quantity per day called?

A

Task work or output

This refers to the measurable output of skilled workers in construction and related fields.

25
Q

What is the excavation capacity in ordinary soil per labor?

A

3 m³ per labor

This indicates the volume of earth that a skilled laborer can excavate in a day.

26
Q

What is the brick work capacity in lime/cement for foundation/plinth per mason?

A

1.25 m² per mason

This refers to the area of brickwork a mason can complete in a day for foundational work.

27
Q

What is the brick work capacity in lime/cement for the superstructure per mason?

A

1 m² per mason

This indicates the area of brickwork for the superstructure a mason can complete in a day.

28
Q

What is the brick work capacity for arches per mason?

A

0.55 m² per mason

This reflects the specific area of brickwork involved in constructing arches.

29
Q

What is the capacity for constructing a half brick wall per mason?

A

5 m² per mason

This indicates the area of half brick wall construction a mason can complete in a day.

30
Q

What is the capacity for coursed rubble masonry in lime or cement per mason?

A

0.8 m² per mason

This refers to the area of coursed rubble masonry a mason can complete in a day.

31
Q

What is the capacity for random rubble masonry in lime or cement per mason?

A

1 m² per mason

This indicates the area of random rubble masonry a mason can complete in a day.

32
Q

What is the capacity for ashlars or stone arch work per mason?

A

0.4 m² per mason

This refers to the area of stone arch construction a mason can complete in a day.

33
Q

What is the capacity for RCC work per mason?

A

3 m³ per mason

This indicates the volume of reinforced cement concrete work a mason can complete in a day.

34
Q

What is the capacity for lime concrete in the foundation per mason?

A

6 m² per mason

This refers to the area of lime concrete work that can be done in a day.

35
Q

What is the plastering capacity (12 mm) with cement per mason?

A

10 m² per mason

This indicates the area of plastering that a mason can complete in a day.

36
Q

What is the capacity for distempering per painter?

A

200 m² per painter

This reflects the area a painter can cover with distemper in a day.

37
Q

What is the capacity for one coat of whitewashing/color washing per painter?

A

200 m² per painter

This indicates the area a painter can cover with one coat of whitewashing or color washing.

38
Q

What is the capacity for three coats of whitewashing/color washing per painter?

A

70 m² per painter

This reflects the area a painter can cover with three coats of whitewashing or color washing.

39
Q

What is the capacity for door painting per mason?

A

8 m² per mason

This indicates the area of door painting a mason can complete in a day.

40
Q

What is the capacity for window painting or varnishing per mason?

A

8 m² per mason

This refers to the area of window painting or varnishing a mason can complete in a day.

41
Q

What is the capacity for flooring (2.5 cm or 1 inch C.C floor) per mason?

A

7.5 m² per mason

This indicates the area of flooring a mason can complete in a day.

42
Q

What is the capacity for flagstone work per mason?

A

8 m² per mason

This reflects the area of flagstone work a mason can complete in a day.

43
Q

What is the capacity for terrazzo (6 mm thick mosaic) work per mason?

A

5 m² per mason

This indicates the area of terrazzo work a mason can complete in a day.

44
Q

What is the sawing capacity for hard wood per pair of sawers?

A

4 m² per pair of sawers

This reflects the area of hard wood that can be sawn by a pair of sawers in a day.

45
Q

What is the sawing capacity for soft wood per pair of sawers?

A

6 m² per pair of sawers

This indicates the area of soft wood that can be sawn by a pair of sawers in a day.

PSC PYQ (5 decks)

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