WorksheetsDay 89-Dec 26-Btech-Worksheet-Construction safety&equipments
Total questions: 15
Worksheet time: 10mins
The main objective of construction safety is to:
Increase project speed
Reduce equipment cost
Prevent danger to public and workers
Improve aesthetics of construction
Power shovels are NOT suitable for excavating:
Soft soil
Clayey soil
Hard rock
Loose soil
Crawler-mounted power shovels are most effective in:
Sandy soil
Soft soil
Clayey soil
Rocky soil
Which excavating equipment is best suited for long reach canal excavation and underwater work?
Power shovel
Backhoe
Dragline
Clamshell
Which machine uses a heavy steel blade mounted at the front?
Scraper
Trencher
Dozer
Tractor
Which roller is most suitable for compaction of cohesive clayey soils?
Vibratory roller
Sheep-footed roller
Pneumatic roller
Steel wheel roller
Clamshell equipment allows lifting only in one vertical direction.
True
False
Scrapers are economical for moving earth over very long distances.
True
False
Assertion (A): Sheep-footed rollers are ineffective on sandy soils. Reason (R): They are designed to compact cohesive soils like clay. Choose the correct option:
A and R are true and R explains A
A and R are true but R does not explain A
A is true but R is false
A is false but R is true
Power shovels excavate soil and load it into (a) vehicles.
Dragline buckets are controlled using pulleys, chains and ______.
Cables
Belts
Ropes
Gears
Clamshell is best suited for limited and restricted spaces.
True
False
A machine used mainly for digging trenches for pipes and cables is called a (a) .
Crawler tractors run on continuous (a) instead of wheels.
The only machine capable of providing three-dimensional movement of load is a (a) .
