DBT40013 Unit 4.2: Mechanical Handling

What is the purpose of mechanical handling?

• Limit storage space

• Decrease productivity

• Increase occupational risks

• Reduce worker ergonomic risks

Answer explanation

The purpose of mechanical handling is to reduce worker ergonomic risks by minimizing physical strain and injury during material movement, thus enhancing safety and efficiency in the workplace.

Which of the following is a common hazard related to lifts?

• Falling from escalator

• Collision

• Stuck between rolls

• Ergonomic related injuries

Answer explanation

Ergonomic related injuries are common in lifts due to repetitive motions and awkward postures while operating or using them. Other options like falling from escalators or collisions are not directly related to lifts.

What type of equipment is used in mechanical handling for moving loads?

• Conveyors

• Escalators

• Forklifts

• Dumbwaiters

Answer explanation

Forklifts are specifically designed for moving heavy loads in various environments, making them essential in mechanical handling. While conveyors and dumbwaiters assist in load movement, forklifts are the most versatile for lifting and transporting loads.

What is a pressure vessel designed to hold?

• Liquids at ambient pressure

• Gases at ambient pressure

• Liquids at high pressure

• Gases at low pressure

Answer explanation

A pressure vessel is specifically designed to hold liquids at high pressure, ensuring safety and containment under extreme conditions. This distinguishes it from vessels meant for ambient pressure or low-pressure gases.

What is a fired pressure vessel used for?

• Maintain gases or liquids at ambient pressure

• Operate without heat from external sources

• Generate energy from external fuel sources

• Hold gases or liquids at low pressure

Answer explanation

A fired pressure vessel generates energy by using heat from external fuel sources, making it essential for applications like power generation, unlike the other options which do not involve energy production.

Which of the following is a hazardous situation related to pressure vessels?

• Training for operators

• Scheduled inspection

• Regular maintenance

• Mechanical blasts

Answer explanation

Mechanical blasts are a hazardous situation related to pressure vessels, as they can result from overpressure or equipment failure, leading to catastrophic incidents. The other options are preventive measures.

What is a common hazard related to trucks/forklifts?

• Stuck between rolls

• Stuck between vehicle and objects

• Tangled in moving parts

• Crushed by load

Answer explanation

A common hazard with trucks and forklifts is being 'crushed by load.' This occurs when loads are improperly secured or handled, posing a significant risk to operators and nearby workers.

What is the classification of an unfired pressure vessel?

• Thermal oil heater

• Autoclave

• Water softener

• Air compactor

Answer explanation

An unfired pressure vessel is typically classified as a water softener, as it is used to treat water by removing hardness, unlike thermal oil heaters, autoclaves, or air compactors which serve different functions.

What is the main advantage of mechanical handling?

• Limit storage space

• Simplify work task

• Decrease productivity

• Increase worker ergonomic risks

Answer explanation

The main advantage of mechanical handling is that it simplifies work tasks by reducing manual effort and streamlining processes, making operations more efficient and safer for workers.

What is a common hazard related to escalators?

• Regular inspection of machinery

• Ergonomic related injuries

• Electric shock

• Stuck in between rolls or chains

Answer explanation

Ergonomic related injuries are common with escalators, as users may experience strain or discomfort from improper use or positioning while riding. This highlights the importance of awareness and proper posture when using escalators.