WorksheetsConstruction BSME 3-1
Total questions: 20
Worksheet time: 12mins
In the fields of mechanical and construction engineering, why is tribology considered critically important?
It contributes to the efficiency, dependability, and durability of heavy machinery
It increases the cost of machinery
It reduces the need for maintenance
It is only relevant to electrical engineering
Name three of the nine essential machines in construction that the manuscript focuses on regarding the application of tribology.
Mine slurry pumps, oil drilling rigs, excavators
Welding machines, paint sprayers, forklifts
Laser cutters, 3D printers, CNC routers
Scissor lifts, jackhammers, tile cutters
Fill in the blank: The study aims to determine how ______ behavior, material composition, and lubrication quality impact equipment performance in demanding operating environments.
wear
color
size
shape
What role does heavy equipment play in executing large-scale tasks?
It is only used for small tasks
It helps execute large-scale tasks efficiently
It is not important in construction
It is mainly used for manual labor
Which of the following is NOT mentioned as an effect of tribological principles in heavy equipment?
Improved productivity
Enhanced safety
Increased manual labor
Longevity of machines
Wear in rubber linings of the slurry pumps.
erosive
adhesive
corrosive
abrasive
Poor lubrication and frictional failure are related to safety hazards and breakdowns in crane component systems.
True
False
What is the benefit of frictional modeling in asphalt compactors?
Increases energy losses during compaction
Minimizes energy losses during compaction
Reduces roller design efficiency
Enhances joint friction
Fill in the blank: In excavator systems utilized tribological modeling in reducing joint friction and ________, consequently enhancing hydraulic performance and energy conservation.
power loss
hydraulic pressure
component size
fuel type
What was the effect of adding graphite nanoplatelets (GNPs) to asphalt mixtures?
The lubrication of the binder was enhanced by the addition of graphite nanoplatelets (GNPs).
The stiffness of the asphalt mixture was significantly reduced.
The color of the asphalt mixture changed to white.
The asphalt mixture became highly water-soluble.
Which of the following materials was shown to usually last longer in cement mixer components?
Materials with more chromium
Materials with less chromium
Materials with more carbon
Materials with less carbon
Fill in the blank: The density and ________ of the soil strongly affect wear rates in bulldozer cutting blades.
abrasiveness
color
temperature
moisture
What was found to be a major cause of wear and tear in heavy dump truck motor oils used in mining conditions?
Dust contamination
High humidity
Low oil viscosity
Excessive engine idling
Which additives were recommended to enhance resistance to friction and contamination in heavy dump truck motor oils?
Phosphorus, sulphur, and molybdenum
Calcium, sodium, and potassium
Silicon, chlorine, and argon
Magnesium, zinc, and copper
Mechanical failures and accidents in cranes were found to be significantly influenced by which factors?
Poor lubrication, excessive friction, and inadequate maintenance
High-quality materials and regular inspections
Advanced automation and skilled operators
Favorable weather conditions and low usage
Which of the following additives can improve lubrication and reduce surface damage?
Graphite nanoplates
Molybdenum disulfide
Silica fillers
All of the above
Which of the following is NOT a recommendation for the construction industry?
Developing smart systems that monitor wear of important parts
Creating environmentally friendly lubricants
Using traditional oil-based fluids exclusively
Developing water-based drilling fluids that are high-performing and cost-effective
Transports large quantities of earth, rocks, or mining materials over rough terrain.
(a)
Uses a hydraulic arm, boom, and bucket to dig, lift, and move large amounts of soil, rock, or debris.
(a)
Drills deep into the Earth to extract oil or natural gas using rotary drilling systems.
(a)
