I have provided the questions and answers for the written tower crane assessment. The crane assessment in broken up into the written assessment and the practical exam. The practical exam is not very vigorous and most people have no trouble passing this section, it is the written assessment that gives people trouble. The written assessment is broken up into sections, in the past you could fail a few questions in each section unless they were star questions which were an automatic failure if you got them wrong.
I have been told by assessors that this has changed and you cannot get any question wrong. There are over 200 questions that you will be required to answer in the assessment so extensive revision is necessary.
There are two assessment instrument books that you are required to memorize. One is a general crane book which you must get tested on for each type of crane license you apply for eg. if you go for either a portal crane, self erecting tower crane, mobile crane or tower crane license they will all have the same Workcover questions. Then there is the specific assessment instrument. I have included the mobile crane assessment instrument below as well, and just to be clear I will repeat it again, for both tests you will be required to know the general crane assessment instrument questions.
My next post will be on which training orginisation you should use to get your tower crane license. You can save $1000s as there is massive variation in the prices charged.
The tower crane load chart lets us know the maximum weight that the crane can lift in any configuration, at any radius, the winch line pull as well as hoist speed, some will show slew speed as well (time to rotate 360 per minute). While it is true that the cranes computer will tell you how much you can lift it is essential that a good crane operator memorize their load chart. I have included some crane load charts for various cranes below.
Well awesome news, we have broken through the 10,000 twitter followers this week which is awesome considering it seems like only yesterday when we had just 20 people following the Crane & Rigging twitter feed. If you want to be part of the action just follow us at https://twitter.com/cranecrews
To celebrate I am thinking we will have a competition, winner gets a C&R jumper or shirt, I'm all out of ideas so shoot through your thoughts.
I am currently reading Handbook of Rigging published by McGraw Hill. Its a great read if you are into the technical details, im reading all about rope, the different lays etc. Also there is a section on structural beams, both wood and steel. Goes into bending moments, calculating force required to move an object and a fair bit of algebra, reminded me of the old TAFE days when I was doing my building diploma.
The book covers all aspects of rigging and goes into great detail; from man + material hoists, lifts with helicopters including signals, all the different cranes and scaffold from the standard to complex cantilevered scaffold.
The only downside is that it is American so measurements are pounds and inches, as well as US government regulations and US steel grades. However its interesting to get an understanding of rigging from an American perspective. From memory the book was about $100, but I bought it some ago. Upon looking at Amazon the book is now $150, so its somewhat of a collectors item I suppose.
Overall, a great addition to the book collection.
Read an article on ABC News about a crane operator supposedly sleeping dangerously on the platform of his tower crane and was photographed by a member of the public. A photo was taken and the article made around that.
The article also has a go at union's for safety double standards
You can clearly see that the crane currently has a load attached (a small yellow boom lift / ewp) and from looking at the picture it looks like the object is moving.
Obviously the person who took the photo could see that, perhaps someone with too much time on their hands.
One wonders what checks go on at ABC news to check the validity before publishing stories, and its a reminder for construction workers to be careful, there are trouble makers out there. Would be nice to go to this chaps work for a day or two with a camera and make trouble for him but we all have better things to do :)
qantas crane doing a fly by
On a job that is near the airport and on the flight path, planes taking off go straight over the crane.
There are rules that apply to cranes working in a flight path, for a fixed tower crane they must have a red light fitted to the highest point on the tower crane to ensure they are visible to pilots.
In our case we have to call the airport control tower and inform them at what time we will be starting work and when we will be finishing work as we can show up on their radar and we are close to the planes.
We also have to keep our crane below 30 meters height. This is achieved by either not fully extending the crane or by not fully luffing up and keeping some angle to keep the crane low.
Its kind of fun working near the airport but I dont know how anyone lives there, the sound violently vibrates through the crane cabin every time a large jet flys by.
Had someone from Sydney airport come to site today, to check that the height we are working at is below 30 meters, and to tell us to not operate in bad weather or when there is low cloud as the pilots have reduced visibility. Height of crane was 28.4 meters so all good there, I have made sure the jib is 29 m instead of 30 just to be extra cautious.
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