NZASE UNIT STANDARD ITEM BANK QUESTIONSEach of the following questions is stand-alone and can be used to assess the element below:

The intention of this item bank is for assessors to develop assessment tasks by choosing complete questions.

Note: If combining parts of questions, you must make sure all Performance Criteria for an element are included in the assessment task.

Unit Standard Number

18977

Unit Standard Title Demonstrate knowledge of the generation and use of electricity.

Element 3 Describe a safe practice when using electricity.

Range One of – fuses or cut out switches, isolating transformers or RCD, outlet positioning, correct wiring.

PC 3.1 The description outlines the factor(s) critical to the safe practice.

QUESTION A:

1. Describe ONE thing you should do to make sure you don’t get an electrical shock when using a power tool outside.

3.1

QUESTION A:PC Evidence Judgement 3.1 Safe practice using a power tool outside

Eg Connect an isolating transformer or RCD between power tool and power supply

Safe practice described

QUESTION B:

1. Explain why fuses or cut out switches are a very important safety feature when wiring up components.

3.1

QUESTION B:PC Evidence Judgement 3.1 Fuses or cut out switches prevent a larger current, than what is

wanted, from flowing so if you don’t get a shock. They cut out when a large current flows.

Functioning of fuses / cut out switches described

QUESTION C:

1. Many appliances, such as toasters, have a wire which leads to earth. Explain what this is for and why it is an important safety feature.

3.1

QUESTION C:PC Evidence Judgement 3.1 If appliance becomes faulty, current will travel to earth.

Prevents people from getting an electrical shock if appliance is faulty.

Purpose of earth described