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LAG 109 Introduction to Engineering (Quiz 1)

Department of Agric Engineering, UCC

This Quiz is a learning tool for the Introduction to Engineering course. Select the correct answer(s) for each of the 20 multiple choice questions in the Quiz.

After you have selected an answer option for a Question, click on the "Next" button to reveal the correct answer with its accompanying explanation. Thank you & Happy Learning!

Dr Ernest Ekow Abano, MGSAE, MASABE

Department of Agric Engineering, UCC

This Quiz is a learning tool for the Introduction to Engineering course. Select the correct answer(s) for each of the 20 multiple choice questions in the Quiz.

After you have selected an answer option for a Question, click on the "Next" button to reveal the correct answer with its accompanying explanation. Thank you & Happy Learning!

Dr Ernest Ekow Abano, MGSAE, MASABE

Which of the following is/are false about the Burj Khalifa of Dubai

I. It is tallest structure ever built

II. The wall is 828 m thick

III. It is more 2000 years old

A. II & III

B. I only

C. I & II

D. I & III

E. I, II & III

CORRECT ANSWER & EXPLANATION

The Burj Khalifa of Dubai remains the tallest (about 829.8 m) structure in the world.

So far, there is no known man-made structure that is taller than the Burj Khalifa.

The edifice was started in 2004 and completed in 2009; it is only about 8 years old.

Therefore, option I is the correct answer, making B the best option.

CORRECT ANSWER & EXPLANATION

The Burj Khalifa of Dubai remains the tallest (about 829.8 m) structure in the world.

So far, there is no known man-made structure that is taller than the Burj Khalifa.

The edifice was started in 2004 and completed in 2009; it is only about 8 years old.

Therefore, option I is the correct answer, making B the best option.

In the history of engineering, the wheel cart is credited to the.....

A. Romans

B. Egyptians

C. Mesopotamians

D. Greeks

E. Chinese

CORRECT ANSWER & EXPLANATION

The wheel cart is said to have appeared from Mesopotamia, therefore the right option is C.

CORRECT ANSWER & EXPLANATION

The wheel cart is said to have appeared from Mesopotamia, therefore the right option is C.

A company invested GH ¢5000 three years ago at an interest rate of 0.45 percent per month

How much money would be in the company’s account now at simple interest?

A. GH ¢5 990

B. GH ¢9 950

C. GH ¢13 500

D. GH ¢104 000

E. GH ¢5810

CORRECT ANSWER & EXPLANATION

At an interest rate of 0.45% monthly, interest earned on the principal amount, GH ¢5000 is

At simple interest, the principal remains the same regardless of the duration of deposit, hence the interest earned at the end of three years will be 22.5 × 36 = 810

Therefore, the amount that will be in the company’s account will be

= 810 x 5,000 = 5,810

Therefore, the correct answer is E

CORRECT ANSWER & EXPLANATION

At an interest rate of 0.45% monthly, interest earned on the principal amount, GH ¢5000 is

= 810 x 5,000 = 5,810

Therefore, the correct answer is E

A company invested GH ¢5000 three years ago at an interest rate of 0.45 percent per month.

How much money would be in the company’s account at compound interest?

A. GH ¢5877

B. GH ¢6092

C. GH ¢18 619

D. GH ¢35 556

E. GH ¢5083

CORRECT ANSWER & EXPLANATION

At compound interest, the principal (P) changes every time the interest is earned for the period of deposit (n). This can be simplified by using the future worth (F) formulae for present worth (P).

Hence

The correct answer is therefore A

CORRECT ANSWER & EXPLANATION

At compound interest, the principal (P) changes every time the interest is earned for the period of deposit (n). This can be simplified by using the future worth (F) formulae for present worth (P).

Hence

The correct answer is therefore A

Component of the robot includes all the following except?

A. The robot itself

B. Computer

C. Sensory apparatus

D. The robota

CORRECT ANSWER & EXPLANATION

Components of robot includes the robot itself, the computer, which serves as the brain of the robot and the sensors which functions as the eye of the robot.

The question is asking for an option which is not a component of the robot.

Therefore, option D is the odd one out, making it the right choice.

CORRECT ANSWER & EXPLANATION

Components of robot includes the robot itself, the computer, which serves as the brain of the robot and the sensors which functions as the eye of the robot.

The question is asking for an option which is not a component of the robot.

Therefore, option D is the odd one out, making it the right choice.

Which of the following is true about engineering ethics?

Tick all that apply

A. Using their knowledge and skills for the improvement of human welfare is a fundamental canon.

B. Engineers shall issue public statements only in an objective and truthful manner is fundamental principle.

C. Engineers cannot accept assignments outside their competence.

D. Engineers shall perform services only in area of their competence.

CORRECT ANSWER & EXPLANATION

This particular question seeks the true statements about engineering ethics. In engineering ethics, there are four fundamentals principles and seven fundamental canons. These are as follows:

1. The Fundamental Principles

Engineers uphold and advance the integrity, honour and dignity of the engineering profession by:

Using their knowledge and skills for the enhancement of human welfare.
Being honest and impartial, and serving with fidelity the public, their employers and clients.
Striving to increase the competence and prestige of the engineering profession and...
Supporting the professional and technical societies of their discipline.

2. The Fundamental Canons

Engineers shall hold paramount the safety, health and welfare of the public in the performance of their professional duties.
Engineers shall perform services only in the areas of their competence.
Engineers shall issues public statement only in an objective and truthful manner
Engineers shall act in professional matters for each employer or client as faithful agents or trustees and shall avoid conflicts of interest.
Engineers shall build their professional reputation on merit of their services and shall not compete unfairly with others.
Engineers shall act in manner as to uphold and enhance the honour, integrity and dignity of the profession.
Engineers shall continue their professional development throughout their careers and shall provide opportunities for the professional development of those engineers under their supervision.

Option A is not a fundamental canon and therefore false

Option B is a fundamental canon and also false

Option C is false since an engineer can accept assignment outside their competence and subcontract it to a competent engineer. This leaves option D as the only right answer.

CORRECT ANSWER & EXPLANATION

Engineers uphold and advance the integrity, honour and dignity of the engineering profession by:

Using their knowledge and skills for the enhancement of human welfare.
Being honest and impartial, and serving with fidelity the public, their employers and clients.
Striving to increase the competence and prestige of the engineering profession and...
Supporting the professional and technical societies of their discipline.

2. The Fundamental Canons

Engineers shall hold paramount the safety, health and welfare of the public in the performance of their professional duties.
Engineers shall perform services only in the areas of their competence.
Engineers shall issues public statement only in an objective and truthful manner
Engineers shall act in professional matters for each employer or client as faithful agents or trustees and shall avoid conflicts of interest.
Engineers shall build their professional reputation on merit of their services and shall not compete unfairly with others.
Engineers shall act in manner as to uphold and enhance the honour, integrity and dignity of the profession.
Engineers shall continue their professional development throughout their careers and shall provide opportunities for the professional development of those engineers under their supervision.

Option A is not a fundamental canon and therefore false

Option B is a fundamental canon and also false

Option C is false since an engineer can accept assignment outside their competence and subcontract it to a competent engineer. This leaves option D as the only right answer.

A consulting engineer is asked by a plaintiff’s attorney to reconstruct the events leading to an automobile crash since the Plaintiff is a very good engineer friend. He finds that the crash is explained solely by negligence of the plaintiff rather than the defendant. The engineer is subsequently asked to serve as an expert witness for the plaintiff in litigation by an attorney.

What should his response not be ?

I. He should protect the plaintiff’s reputation by reconstructing the events.

II. He should truthfully express the engineering opinion only to the attorney

III. He should include all relevant and pertinent information in his testimony.

A. I only

B. II only

C. III only

D. I and III

E. II and III

CORRECT ANSWER & EXPLANATION

• Engineers, when serving as expert or technical witnesses before any court, commission, or other tribunal, shall express an engineering opinion only.

• Engineers shall be completely objective and truthful in all professional reports, statements, or testimony. They shall include all relevant and pertinent information in such reports, statement, or testimony. Therefore, the engineer should not protect the plaintiff by reconstructing the events leading to the collapse.

Option A is the right answer.

CORRECT ANSWER & EXPLANATION

Option A is the right answer.

What moral theory governs the consulting engineer’s responsibilities to the plaintiff?

A. Duty ethics

B. Right ethics

C. Utilitarianism

D. Virtue ethics

CORRECT ANSWER & EXPLANATION

This is a clear case of duty ethics on the part of the engineer even though it will not produce the most good to the reputation of a fellow engineer but the engineering profession.

The best option is therefore A.

CORRECT ANSWER & EXPLANATION

This is a clear case of duty ethics on the part of the engineer even though it will not produce the most good to the reputation of a fellow engineer but the engineering profession.

The best option is therefore A.

In an engineering team, usage of the power tools are the responsibilities of the......

A. Engineer

B. Craftsman

C. Technician

D. Technologist

CORRECT ANSWER & EXPLANATION

The right answer is B, which is Craftsmen.

They are skilled workers who produce the materials and product or facilities specified by the design. They use hand and power tools to service, maintain and operate machines or products useful to the engineering team.

Such specialists include electricians, carpenters, welders, machinists, masons, and model builders

CORRECT ANSWER & EXPLANATION

The right answer is B, which is Craftsmen.

Such specialists include electricians, carpenters, welders, machinists, masons, and model builders

Identify the photo above

A. Appian Way

B. Aqua Appia

C. Circus Maximus

D. Gothic Cathedral

E. Pantheon

CORRECT ANSWER & EXPLANATION

The photo above is Circus Maximus, which was a race course where games and contests were held by the Romans.

The right answer is C

CORRECT ANSWER & EXPLANATION

The photo above is Circus Maximus, which was a race course where games and contests were held by the Romans.

The right answer is C

In the history of engineering, the title engineer came into use during which age?

A. The 20th Century

B. The middle ages

C. 21st Century

D. 15th to 17th Century

E. None of the above

CORRECT ANSWER & EXPLANATION

The title engineer first came into use during the middle ages, that is AD 1000-1200.

Hence the right answer is B

CORRECT ANSWER & EXPLANATION

The title engineer first came into use during the middle ages, that is AD 1000-1200.

Hence the right answer is B

The step pyramids by the Egyptians was built with one Mastaba on top of the other to.....

A. Prevent tomb robbers from digging

B. Make it befit their kings

C. Portray the outstanding engineering skills

D. Honour their kings burial

E. Preserve the kings body from decay

CORRECT ANSWER & EXPLANATION

The step pyramid was a burial place for Egyptian kings.

This pyramid evolved from tombs known as Mastabas, where kings were believed to live on after their death.

But why was it built with one Mastaba on top of the other?

This was primarily because they want to prevent tomb robbers from digging it.

The correct answer is therefore A.

CORRECT ANSWER & EXPLANATION

The step pyramid was a burial place for Egyptian kings.

This pyramid evolved from tombs known as Mastabas, where kings were believed to live on after their death.

But why was it built with one Mastaba on top of the other?

This was primarily because they want to prevent tomb robbers from digging it.

The correct answer is therefore A.

Which of the following engineering professions is best suited to Test the effectiveness of an air conditioner in a tractor for farming activities?

A. Mechanical engineer

B. Agricultural engineer

C. Geodetic engineer

D. Material engineer

E. Civil engineer

CORRECT ANSWER & EXPLANATION

Even though the testing of tractor effectiveness for farming activities is the work of agricultural engineers, this particular question is asking for the testing of the effectiveness of the air conditioner in a tractor.

Air conditioning design and testing is the responsibility of mechanical engineers who have specialized in refrigeration and air conditioning.

Therefore, the answer is A.

CORRECT ANSWER & EXPLANATION

Air conditioning design and testing is the responsibility of mechanical engineers who have specialized in refrigeration and air conditioning.

Therefore, the answer is A.

A current of 13 amps flows through a 4-ohms resistor. Compute the power dissipated.

A. 676 W

B. 52 W

C. 42.25 W

D. 3.25 W

E. 104 W

CORRECT ANSWER AND EXPLANATION

In this question, the current I and resistance R, are given. It is required to compute the power, P, which will require a formula involving P, I, and R. That is

Hence, the answer is A

CORRECT ANSWER AND EXPLANATION

In this question, the current I and resistance R, are given. It is required to compute the power, P, which will require a formula involving P, I, and R. That is

Hence, the answer is A

Which of the following do engineers use to search for creative solutions

I. attribute listing

II. morphological analysis

III. Simulation models

A. II only

B. III only

C. I and II

D. I, II and III

E. None of the above

CORRECT ANSWER & EXPLANATION

Techniques used by engineers to search for creative solutions include brainstorming, checklists, attribute listing, forced relationship technique and morphological analysis.

Simulation modelling is a preliminary design tool engineers use after generating the creative ideas to a solution.

Hence the right answer is C.

CORRECT ANSWER & EXPLANATION

Techniques used by engineers to search for creative solutions include brainstorming, checklists, attribute listing, forced relationship technique and morphological analysis.

Simulation modelling is a preliminary design tool engineers use after generating the creative ideas to a solution.

Hence the right answer is C.

Which of the most famous engineering works of the Romans had its internal diameter equal to its height?

A. Aqua appia

B. The Pantheon

C. The Pont du Gard

D. The Circus Maximus

E. The Ziggurat

CORRECT ANSWER & EXPLANATION

The Pantheon is the right answer (B).

This was a temple of extraordinary stateliness built by Agrippa, a brilliant engineer and the adopted son of Augustus.

The Pantheon suffered two fires and had to be rebuilt by Hadrian.

Its internal diameter is equal to its height of 141 feet (43 metres).

The Pantheon is preserved till today.

CORRECT ANSWER & EXPLANATION

The Pantheon is the right answer (B).

This was a temple of extraordinary stateliness built by Agrippa, a brilliant engineer and the adopted son of Augustus.

The Pantheon suffered two fires and had to be rebuilt by Hadrian.

Its internal diameter is equal to its height of 141 feet (43 metres).

The Pantheon is preserved till today.

Which of the following are among the seven wonders of the ancient world. Tick all that apply

A. Great Wall

B. Great pyramid

C. The EuroTunnel

D. Pharos at the port of Alexandria

E. Burj Khalifa

CORRECT ANSWER & EXPLANATION

The Great Wall of China, Great Pyramid of Egypt, and the Pharos at the port of Alexandria of the Greeks are among the seven wonders of ancient world.

The other options are modern wonders.

Hence A, B and D are the right answers.

CORRECT ANSWER & EXPLANATION

The Great Wall of China, Great Pyramid of Egypt, and the Pharos at the port of Alexandria of the Greeks are among the seven wonders of ancient world.

The other options are modern wonders.

Hence A, B and D are the right answers.

What is the basis of engineering ethics?

A. Feelings

B. Perceptions

C. Philosophy

D. Psychology

E. Religious beliefs

CORRECT ANSWER & EXPLANATION

Engineering ethics are based on philosophy, which is the viewpoint, thinking, way of life, and belief of people.

The right answer is C.

CORRECT ANSWER & EXPLANATION

Engineering ethics are based on philosophy, which is the viewpoint, thinking, way of life, and belief of people.

The right answer is C.

Which of the following cannot be avoided in engineering designs?

A. Imperfections in buildings

B. Mistakes and carelessness

C. Fail-proof designs

D. Poor communications

CORRECT ANSWER & EXPLANATION

Despite the best efforts of engineering designers, their designs occasionally fail.

Bridges and buildings collapse, roofs of buildings cave in, and earthen dams fail, threatening human lives and causing billions and billions of Ghana cedis of damage to property.

These failures may result from mistakes and carelessness of engineers, imperfections in building materials, poor communication etc.

However, an engineering design which will never fails in time either from blemishes or catastrophe cannot be avoided.

Therefore, the right answer is C.

CORRECT ANSWER & EXPLANATION

Despite the best efforts of engineering designers, their designs occasionally fail.

Bridges and buildings collapse, roofs of buildings cave in, and earthen dams fail, threatening human lives and causing billions and billions of Ghana cedis of damage to property.

These failures may result from mistakes and carelessness of engineers, imperfections in building materials, poor communication etc.

However, an engineering design which will never fails in time either from blemishes or catastrophe cannot be avoided.

Therefore, the right answer is C.

The Eurotunnel links which of the following cities in the Europe?

A. Folkestone and Dover

B. Dover and Calais

C. France and Calais

D. Folkestone and Calais

E. France and UK

CORRECT ANSWER & EXPLANATION

The Eurotunnel is a UK-France undersea rail link, which was constructed in 1994.

On the UK side, the tunnel ends at Folkestone while at the France side, it ends at Calais.

Hence, the right option is D.

CORRECT ANSWER & EXPLANATION

The Eurotunnel is a UK-France undersea rail link, which was constructed in 1994.

On the UK side, the tunnel ends at Folkestone while at the France side, it ends at Calais.

Hence, the right option is D.

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