Construction measurement principles

Front

Name the 5 Steps of a Construction Project

Back

Plan - Prepare - Design - Construct - Maintain

Front

State the 7 factors that are often used for understanding the Life Cycle Cost Analysis for a Building.

Back

Land Acquisition - Construction Process - Energy Usage - Water Usage - Operation - Maintenance & Repair - Replacement

Front

How many standard bricks are required for a half-brick thick wall 3.5 m long and 1125 mm high?

Back

Formula: area (m²) = height (m) × length (m)

Convert 1125 mm to m = 1.125 m

1.125 m (height) × 3.5 m (length) = 3.937 m² = 3.94 m² to two decimal places

Formula: 60 bricks per m² for a half-brick thick wall: 3.94 × 60 = 236.4 bricks = 237 rounded to whole bricks

Front

What is Thermal Transmittance?

Back

It is the measure of the rate at which heat passes through a component or structure

Front

Construction drawings are produced to a set of conventions - what are they?

Back

# specific units of measurement # specific views and viewing angles # specific sheet sizes.

Front

What are Conventions?

Back

Conventions are:

Agreed, consistent standards and rules

Front

What are Tolerances?

Back

Tolerances are:

Allowable variations between specified measurements and actual measurements

Front

Why do we have / need tolerances in construction?

Back

Tolerances are necessary because:

# A building will often be constructed in conditions that are not perfect

# Many materials have characteristics that make it difficult to produce a flawless result

Front

A tolerance is normally expressed as plus or minus (±) a stated amount. Tolerances will vary, depending on the nature of the material. How else can Tolerances be established?

Back

Tolerances may also be established to allow for:

# acceptable variations in the strength of materials

# the performance range of a heating or ventilation system

# temperature ranges in which materials can be used.

Front

What will the result be if the allowable tolerances for a given construction task are not met?

Back

Exceeding allowable tolerances for a given construction task will mean that the work does not meet the specification.