WorksheetsExcavation in Construction Quiz
Total questions: 15
Worksheet time: 8mins
Which of the following is a disadvantage of using mechanical plants in excavation?
Achieve greater depth
Require a larger operating area
Use fewer manpower
Avoid dangerous conditions
What type of excavator is not suitable for horizontal or below ground excavation?
Backactor (Backhoe)
Face shovel excavator
Dragline excavator
Clamshell excavator
What is the primary use of backactors (backhoes)?
Horizontal excavation
Below ground level excavation
Painting buildings
Installing windows
What is the function of the bucket in a backactor (backhoe)?
To push materials away
To act downwards and drag towards the machine
To lift materials vertically
To rotate materials
What is the primary function of a bulldozer?
To lift heavy materials
To cut and grade soil
To drill into rocks
To transport materials
What type of machine is a clamshell excavator similar to?
A bulldozer
A crane
A grader
A dumper
What is the function of a dumper?
To drill rocks
To carry material within a site
To grade surfaces
To excavate soil
Which type of survey is NOT mentioned in the excavation proposal content?
Accurate level survey
Geotechnical survey
Biological survey
Ground and surface water information
What is the minimum diameter for a water main that requires regulation?
50mm
60mm
75mm
100mm
What must be obtained before starting excavation according to the regulations?
Financial approval
Community consent
Government consent
Media coverage
Which factor can impose certain restrictions and precautions during excavation?
Nature of subsoil
Size of excavation
Surrounding condition
Scale of work
What might be required due to ground water conditions during excavation?
Larger machines
Watertight sheet piling or dewatering
Diversion of a government drain
Underpinning work
What does the size of excavation affect?
Type of machine used and method to excavate
Degree of protection
Restrictions and precautions
Necessity of soil protection
What is required for very large scale excavation?
Minimal resources
Simple work planning
Tremendous resources input and careful work planning
No precautions
What does the scale of work in excavation affect?
Necessity of soil protection
Complicated phasing arrangement and work planning
Degree of protection
Restrictions and precautions
