Test 1 Flashcards
(24 cards)
What are preliminaries?
Costs for setting up and managing the site. Not measured work. Includes site offices, insurance, security, temporary services, etc.
What is a provisional sum?
A money allowance for work that needs to be done but isn’t fully detailed yet. Adjusted later when scope is known.
What is a prime cost sum?
An allowance for items from nominated suppliers or subcontractors. Contractor adds profit and attendance.
What is a contingency?
Extra money added to the estimate for unexpected problems (like delays, changes, estimating errors). It’s a risk buffer.
What is an allowance?
Money set aside for known but not detailed work. Only used if there’s a good chance the work will happen.
What is a Bill of Quantities?
A list of measured work with quantities. Helps with pricing, comparing bids, and controlling costs.
What is the most accurate type of estimate?
Definitive estimate (based on detailed info, accurate to ±5%).
What method uses cost per unit like “cost per bed”?
Parametric method.
Why use Standard Method of Measurement (SMM)?
To ensure consistency, avoid disputes, and clearly define how work is measured.
What unit is used to measure area?
Square metres (m²)
How do you find the area of a wall?
Multiply height × length (in metres).
Formula to calculate volume of excavation?
Width × Depth × Length (in metres).
How are dimensions rounded when taking off?
Rounded up to the second decimal point.
Where is waste calculation done during taking off?
In the side cast — not in the description column. ❌
Where are descriptions written on a dimension sheet?
In the Description Column, NOT in the Timesing Column.
What do three dimensions (L × W × H) represent?
A volume measurement (cubic metres).
Who decides the unit of measurement?
The Standard Method of Measurement (e.g., ANZSMM)
How is a count represented in taking off?
By one dimension with two decimals (e.g., “1.00”).
What is an Order of Magnitude Estimate?
A rough early guess based on a similar past project. Accuracy: +75% to -25%.
What is a Budget Estimate?
medium-accuracy estimate based on some project info. Accuracy: +25% to -10%.
What is a Definitive Estimate?
A detailed and most accurate estimate using full drawings and BQ. Accuracy: ±5%.
What is Analogous Estimating?
Estimating based on a similar past project, adjusted for time, location, etc. Quick but low accuracy.
What is Parametric Estimating?
Estimating using cost per unit (e.g., $/m² or $/bed). Based on historical data. Medium accuracy.
What is Deterministic Estimating?
Detailed estimating using measured quantities and unit rates. Most accurate but time-consuming.
