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Wednesday, 3 March 2021

electrical mains power tools

 what is a mains-powered tool?
Mains electricity is the general-purpose alternating-current electric power supply. In New Zealand, the Mains voltage is 230V. Which is an a.c. (Alternate Current) This means that the current is constantly changing direction. Mains powered tools are the tools that can only be used Mains power.

Give three examples of a mains power tool?
Grinder 
impact drill
circular saw 

What is a task the tool is used for?
grinder: can be used for cutting up long pieces of a bar or used as a sander to give the metal a shiny finish.
impact drill: used to drill holes in things like strong metals and concrete.
circular saw: A circular saw is a power-saw using a toothed or abrasive disc or blade to cut different materials using a rotary motion. 
  • A circular saw is a tool for cutting many materials such as wood, masonry, plastic, or metal and may be hand-held or mounted to a machine.

General safety around electricity?
check for any exposed wires 
keep the cord out of any water 
disconnect the cord when finished
if a fault is found report it to the person in charge 

what is an "RCD"?
A residual-current device, or residual-current circuit breaker, is a device that quickly breaks an electrical circuit to prevent serious harm from an ongoing electric shock. it can save your life. 

What is meant by double insulation?
Double insulation is an insulation that consists of both basic insulation and supplementary insulation. Equipment such as hand-held domestic electric drilling machines has the additional safety precaution of double insulation.

general "PPE" when using mains-powered tools 
gloves, facemask, eye protection, steel cap boots, hearing protection, vest or overalls optional.









Monday, 22 February 2021

hydraulic tools

 What are hydraulic tools?

Hydraulic machines use liquid fluid power to perform work. Heavy construction vehicles are a common example. In this type of machine, hydraulic fluid is pumped to various hydraulic motors and hydraulic cylinders throughout the machine and becomes pressurized according to the resistance present.


How do they work?

Hydraulic systems use the pump to push hydraulic fluid through the system to create fluid power. The fluid passes through the valves and flows to the cylinder where the hydraulic energy converts back into mechanical energy. The valves help to direct the flow of the liquid and relieve pressure when needed.


What safety precautions to you need to take?

Always wear safety goggles and protective clothing when using hydraulic equipment. Every jack or ram, whether used individually or in a system, should be completely supported on a solid, firm, non-sliding foundation capable of supporting the load.

 

How do you maintain them?

To combat dirt and contamination, make sure you follow these preventive maintenance steps. Brush and wipe clean all hydraulic connections before you insert them into a hydraulic pump or remote head. Always use fibre brushes when cleaning your hydraulic tools—never metal-bristled brushes.

 

Give three examples of hydraulic tools in the workshop (you are likely to come across?)


 

 

 




Wednesday, 17 February 2021

air tools

 what is a pneumatic tool?

A pneumatic tool, air tool, air-powered tool or pneumatic-powered tool is a type of power tool, driven by compressed air supplied by an air compressor. Pneumatic tools can also be driven by compressed carbon dioxide stored in small cylinders allowing for portability.

what is an air compressor? 

A compressor is a mechanical device that increases the pressure of a gas by reducing its volume. An air compressor is a specific type of gas compressor. Compressors are similar to pumps: both increase the pressure on a fluid and both can transport the fluid through a pipe.


This is a diagram showing all the parts of an air compressor. 

This compressor is a portable single-stage air compressor.






Safety when using an air compressor.

check that the hose no kinks or holes, make sure everything is plugged in correctly, wear safety goggles, don't spray at yourself or others,

PPE when using air tools.
goggles
air protection 
strong footwear 
(optional)-overalls 

different types of air tools.
-impact wrenches
-ratchets
-screwdrivers 
-drills
-sanders
-belt sanders
-grinders
-angle grinders
-angle polisher
-chisel hammer
-saws
-other tools and accessories

Monday, 18 November 2019

a risk or challenge that i have faced

The North Face

in life we've all faced challenges and or done something that was quite risky. Well i know i have, It was when i was on project k, my day started like any other, waking up to the sound of a phone alarm screaming in my ear at 4:50 in the morning, ok maybe that's not like any other day but anyway i rose from my slumber and sat up then i remembered that today was the day that we had to climb mount oxford, but that wasn't when the challenge started, it started when me and Ryan had to wake everyone up and make sure they were packed and ready to leave be 8 o clock, and it was cold like really cold.

when we were all ready we started our tramp in classic “Gary's the leader day” fashion, so of course we went the wrong way for 2kms. but we went back and got on track then we realised we are going hill and it began to show quickly people were slowing down and stopping and since we were a team we had to wait for them, but we had to keep pushing those people to keep going because we didn't want to be walking into the night (we ended up walking into the night)

the worst part about it all was that by 3 o clock people were stopping all the time because they were tired. This made me frustrated and restless because i knew that they could keep going but, their minds were holding them back from continuing but then when we all finally got to the top of the mountain we all felt like we had achieved something and i guess i could say it was a good feeling being up there in the clouds freezing and breathing in that dry thin air,

after our break we had to start heading down the mountain ,fast, because the clouds were turning grey and before we knew in there was rain and hail hitting us. so me and the other leader that day decided that we had sat around for long enough and that we had to start going down the hill, now you may think that was easy but no it wasn't, actually a lot of people were falling over and hurting themselves because it was so steep and we were going down hill.


but in the end we did end up getting down the huge mountain and mostly unscathed apart from a couple of bumps,bruises,and cuts we were fine and then as we came around a very sharp corner we saw it, the lodge that we were sleeping in and the lodge that we would get our first good meal in a week. That's when me and everyone else knew that we had done it we had walked 12kms and walked up and down a 1250 m mountain. When we all got to the lodge we all collapsed on our beds and talked about what a crazy day we just had.

Tuesday, 5 November 2019

creative writing

WALT: Identify and recognise ideas for our 'risk or challenge'creative writing task as well as the physical sensations associated with it.
_____________________________________________________________________________
ideas for risk or challenge
camp activities
doing a shoey
sports comps
project k
an abandoned house
being in the army
getting chased
_____________________________________________________________________________
physical sensation
sweating: palms, feet back, forehead
knees weak/shaking 
need to wee
heavy breathing 
looking around a lot/walking back and forth
leg bounce/shaking
pins and needles
heart pounding
butterflies in the stomach
_____________________________________________________________________________

Thursday, 31 October 2019

movies are better than books

personally i think that  movies are better than books because i am a person that likes to get lost in a world that i can see on the screen in front of me. i dont just say that because i cant read i say that because i feel as though books take a whole page to explain 10 seconds in a movie and when reading a book a lot of things that you could see in a movie are left for your imagination to visualise which i think can sometimes give you the wrong perspective of a story.

so lets start by saying books are good and you can understand the emotions that a character is feeling  but, i think that when watching a movie there are a lot more ways that the director can connect us emotionally with a character. weather it's the use of camera angles, lighting or the weather in the scene, i believe than these aspects of film can allow us to connect more deeply with a character and really allow us to get a scene of the pain sorrow or happiness that a character is feeling. but on the other hand when reading with a book the author can only enhance the emotional connection by using different writing skills, and i feel like its better to see how sad or happy a character is rather then just reading "bob was walking in his room and heard a loud bang he went out side to check what it was, only to see his father laying on the front lawn lifeless". now that does give you a picture of what is happening but in a movie the director might use different camera angles and then maybe "bob" will have flash backs of past memories with his dad. There is a lot more i could say about this one aspect of my argument but i think you get the point now.

ok lets jump ships this time and instead of throwing shade at books lets talk about something that i believe is a thing that books can do better than movies. Whats this you might ask? well its the factor of the time limit of movies, see in a movie they have to fit a whole story into a 2 hour movie, SO some characters get left out of the movies. 
ok so for this ill use the harry potter series as my example, because there a lot of charterers that are in the books but not in the movies or, they are in the movies but their backstory is left out. so some characters from the harry potter books that done things that changed the plot such as dobby the house elf or the gaunt family (Voldemort's parents and grandparents)  went included and for me i read the books before i got in to the movies and watched the over and over. and in the last year i have realised that the movies have taken things done by other characters and just changed it so that one of the main characters do it. so i think that was a bit off topic but back to the point, i just think that movies should leave in the characters that are in the books because in gives you more characters to connect with and in my opinion i thing that is a fun thing.

so in conclusion i think that books and movies are both good in there own right. movies for being more visually and emotionally captivating, and books for being able to convey a wider  understanding and filled in version in the story without any plot holes or random characters for plot convenience. so its all about personal opinion in this argument. but any that's me done going on for this topic. so basically i think that movies are better than books, thank you and bye