Heavy Machinery and Excavation

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What is the main advantage of TANDEM-POWERED AXLES in steep or slippery areas?

Improved maneuverability
Better traction (correct)
Reduced fuel consumption
Increased speed

How do SELF LOADING ELEVATING SCRAPERS operate?

Using a push-pull attachment
Using rippers or scarifiers
Using a vertically mounted auger
Using an electrotonically or hydraulically driven elevator (correct)

What is the purpose of using chain or shuttle loading methods?

To increase the speed of loading
To improve the traction of the scrapers
To compact the fill surface
To reduce the required pusher power (correct)

Why is it important to maintain the haul road in good condition?

To permit high-speed hauling without danger (D) Signup and view all the answers

What is the purpose of boosting scrapers on the fill?

To reduce the spreading time (C) Signup and view all the answers

What is the advantage of using downhill loading?

To reduce the required pusher power and load time (B) Signup and view all the answers

What is the primary mechanism used by top hammer drills to penetrate rock surfaces?

Hammering mechanism (C) Signup and view all the answers

In what type of formations are rotary drills commonly used?

Soft rock formations (B) Signup and view all the answers

What is the primary purpose of detonators in blasting operations?

To initiate the explosion of explosives (A) Signup and view all the answers

What is the function of explosives in blasting operations?

To generate high-pressure gas (C) Signup and view all the answers

What type of drilling equipment is commonly used in oil and gas exploration?

Rotary drills (C) Signup and view all the answers

What is the purpose of ANFO (Ammonium Nitrate Fuel Oil) in blasting operations?

To generate high-pressure gas (B) Signup and view all the answers

What is a common use of a dragline?

Unloading bulk materials from stockpiles to bins, hoppers or haul units (D) Signup and view all the answers

What should you do before turning the ignition key?

Sound the horn to alert others (B) Signup and view all the answers

What is the primary purpose of a shovel?

To dig and load materials (B) Signup and view all the answers

What is unique about the dragline compared to other machines?

It has the longest reach for digging and dumping (A) Signup and view all the answers

Why should you prioritize safety before starting work with the shovel?

To protect yourself and others from potential hazards (C) Signup and view all the answers

What should you check before starting the engine?

All of the above (D) Signup and view all the answers

What is the primary function of jaw crushers?

To crush stones into smaller sizes (D) Signup and view all the answers

What is the main difference between a cone crusher and a true gyratory crusher?

All of the above (D) Signup and view all the answers

What type of crusher is used for producing additional reductions in the sizes of stone?

Roll crusher (C) Signup and view all the answers

What is the characteristic of gyratory crushers?

They are renowned for their efficiency and continuous crushing action (D) Signup and view all the answers

What is the function of the two jaws in a jaw crusher?

To exert pressure to crush the stone (B) Signup and view all the answers

Which type of crusher is capable of producing large quantities of uniformly fine crushed stone?

Cone crusher (C) Signup and view all the answers

What is the primary function of the specially designed rails for the printer?

To guide the printer's movement (A) Signup and view all the answers

What is the advantage of using construction robots in construction sites?

They make sites more efficient and provide safer work environments (A) Signup and view all the answers

How many bricks can the semi-automated bricklaying robot lay per day?

3,000 bricks per day (D) Signup and view all the answers

What happens to the concrete after it is connected to the printer's nozzle via a big hose?

It is used to print the required 3D design (B) Signup and view all the answers

What is the benefit of using robots in construction according to the text?

They upgrade jobs rather than stealing them (D) Signup and view all the answers

What is the result of the semi-automated bricklaying robot assisting the mason?

The mason's productivity is increased by 3-5x (B) Signup and view all the answers