NTISthis.com

Evidence Guide: MARL061 - Perform basic marine engineering calculations

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

MARL061 - Perform basic marine engineering calculations

What evidence can you provide to prove your understanding of each of the following citeria?

Apply mathematical formulae to solve engineering problems

  1. Proportions, variation, percentages and averages are calculated, and method of unity is applied
Proportions, variation, percentages and averages are calculated, and method of unity is applied

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Problems involving the manipulation of indices are solved

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Written descriptions of actual or hypothetical engineering problems are expressed in mathematical terms

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Algebraic formulae and equations are manipulated to change subjects, as and when required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Index problems are converted to logarithmic problems, and vice versa, according to the Law of Logarithms

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculator is used to resolve engineering problems

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculate areas, volumes and masses of regular and irregular figures

  1. Problems related to areas and volumes of regular geometric figures are solved using standard formulae
Problems related to areas and volumes of regular geometric figures are solved using standard formulae

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Problems relating to surface areas and volumes of circular figures are solved

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Centres of gravity (CG) and centroids of area are found for both line figures and areas

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Concept of density is applied to calculate masses

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Apply trigonometry to solve problems relating to angular measurement and the resolution of vectors

  1. Basic trigonometric ratios of sine, cosine and tangent, together with their reciprocals are explained with respect to the sides of a right-angled triangle
Basic trigonometric ratios of sine, cosine and tangent, together with their reciprocals are explained with respect to the sides of a right-angled triangle

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Pythagoras’ Theorem is proved

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Problems associated with single angle trigonometric identities, including those derived from the application of Pythagoras’ Theorem to the basic sin, cos and tan identities, are solved

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Derivation of multiple, double and half angle trigonometric identities are shown and used to simplify complicated trigonometric expressions and identities

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Sine rule and cosine rule for solution of triangles are proved and applied

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Required Skills and Knowledge

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria on at least one occasion and include:

assessing own work outcomes and maintaining knowledge of current codes, standards, regulations and industry practices

explaining basic mathematical concepts and techniques relevant to engineering

identifying and determining appropriate mathematical techniques and formula to solve engineering problems

identifying the methods and procedures needed to select mathematical techniques and formula to solve engineering problems

imparting knowledge and ideas through verbal, written and visual means

performing accurate and reliable calculations

performing calculations relevant to engineering, including volumes and masses of regular and irregular areas

reading and interpreting written information on engineering problems and expressing this information in mathematical terms

solving problems using appropriate laws and principles

using a calculator to resolve engineering problems.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of:

calculations, including:

algebra

calculations with positive and negative integers

graphs

indices

mensuration

simplifying expressions

trigonometry

centre of gravity (CG), longitudinal centre of gravity (LCG) and vertical centre of gravity (VCG)

centroids of area

formulae for areas, volumes and masses of regular and irregular shapes

indices

Law of Logarithms

proportions, variation, percentages, averages and method of unity

Pythagoras’ Theorem.

Range Statement

Range is restricted to essential operating conditions and any other variables essential to the work environment.