Human Factors M9

Front

What is presented by letter E in SHELL model?

Back

Environment

Answer explanation

In the SHELL model, the letter E stands for Environment, which refers to the external factors that influence human performance and interaction with systems.

Front

State some of hardware deficiency in SHELL model

Back

Inappropriate equipment, poor aircraft design for maintainability

Answer explanation

The correct choice, b) Inappropriate equipment, poor aircraft design for maintainability, highlights specific hardware deficiencies in the SHELL model, focusing on equipment suitability and design issues that affect maintenance.

Front

What is “Murphy’s law”?

Back

If something can go wrong, it will

Answer explanation

Murphy's law states that if something can go wrong, it will. This means that in any situation, if there is a possibility of failure, it is likely to occur, making option a) the correct choice.

Front

What is the aim of Human factors?

Back

Optimize human performance within a system by contributing to the planning, design, and evaluation of tasks, jobs, products, organizations, environments and systems in order to make them compatible with the needs, abilities, and limitations of people.

Answer explanation

The aim of Human factors is to optimize human performance by ensuring that systems are designed to fit the needs, abilities, and limitations of people, making option c the correct choice.

Front

How many disciplines are involved in human factors?

Back

10

Answer explanation

Human factors encompass 10 disciplines, including psychology, ergonomics, and engineering, which collectively enhance user experience and safety. Therefore, the correct answer is b) There are 10 disciplines of human factors.

Front

How many senses does a human have?

Back

5 senses: touch, taste, sight, smell, and hearing

Answer explanation

Humans have 5 senses: touch, taste, sight, smell, and hearing. This is the widely accepted classification, making option c) the correct answer.

Front

Long-sightedness caused by the ageing process begins after what age?

Back

The age of 40

Answer explanation

Long-sightedness, or presbyopia, typically begins after the age of 40 due to the natural aging of the eye's lens, which loses flexibility. This makes it harder to focus on close objects, confirming that option a) is correct.

Front

What might the sense of touch use?

Back

Our hand to detect.

Answer explanation

The sense of touch primarily uses our hands to detect sensations such as pressure, temperature, and texture. Therefore, option c) 'Our hand to detect' is the correct choice.

Front

When a task requires a "sniff check" to determine a system error, you can use: a) Your eyes, b) Your nose, c) Your ears

Back

Your nose

Answer explanation

A "sniff check" refers to using your nose to detect unusual odors that may indicate a system error, such as burning or gas leaks. Therefore, the correct choice is b) Your nose.

Front

Which statement is correct about the power of vision?

Back

Older people are often more affected by dazzling light than younger ones.

Answer explanation

Older individuals often have changes in their eyes that make them more sensitive to bright lights, leading to greater discomfort from dazzling light compared to younger people, making option a) the correct choice.