1) On building sites, the recommended safe voltage for electrical equiptment is: a) 12 volts b) 24 volts c) 110 volts d) 230 volts 2) It is safe to work close to an over head power line if: a) You do not touch the line for more then 30 seconds b) You use a wooden ladder c) The power is switched off d) It is not raining 3) This warning sign means? a) Risk of electrocution b) Risk of thunder c) Electrical appliance d) Risk of lightning 4) You are using a 230 volt item of equiptment when the fuse blows. What is the first thing you should do? a) Fit another fuse the same size b) Fit a bigger fuse c) Use a paperclip to link the contacts d) Check for obvious damage 5) When do you need to check electrical hand tools for damage? a) Before you use it b) Everyday c) Once a week d) At least once a year 6) You need to use an extention cable. What two things must you do? a) Only uncoil the length of cable you need b) uncoil the whole cable c) Clean the whole cable with a damp cloth d) Check the whole cable for damage e) Only check the cable you need for damage 7) You should use an Residual Current Devixe with a 230 volt tools because: a) It lowers the voltage b) It quickly cuts off the power if there is a falt c) It makes the tool run at a safe speed d) It safes energy and lowers costs 8) The coulor of a 110 nvolt power cable and connector should be: a) Black b) Red c) Blue d) Yellow 9) You are useing an electric drill when it cuts out. You should: a) Shake it to see if it will start again b) Pull the electric cable to see if it is loose c) Switch the power on and off a few times d) Switch off the power and look for signs of damage 10) There is smoke coming from the motor of your electric drill. You should: a) Pour water over it b) Use a carbon dioxide extinguisher c) Unplug the drill and see that no one eles uses it d) Allow the drill to cool for 30 minutes then try again 11) You need to run an electrical cable across an area used by vehicals. What two things should you do? a) Wrap the cable in yellow tape so that drivers can see it b) Cover the cable with a protection ramp c) Cover the cable with scaffold boards d) Put up a sign that says "Ramp Ahead" e) Run the cable at head hight 12) You need to work near an electrical cable. The cable has bad wires. What should you do? a) Quickly touch the cable to see if it is live b) Check that there are no sparks coming from the cable then startwork c) Tell your supperviser and keep well away d) Push the cable out of the way then you can start work 13) If an extention cable has a cut in its outer cover, you should: a) Check the copper wires don't show through the cut then use the cable b) Put electrical tape around the damaged part c) Report the fault and make sure no one eles uses the cable d) Put a bigger fuse in the cable plug 14) What is the best way to protect an extention cable while you work? a) Run the cable abouve head hight b) Run the cable by the shortest route c) Cover the cable with yellow tape d) Cover the cable with peices of wood 15) How do you check if the Residual Current Devise connected to a power tool is working? a) Switch the tool on and off b) Press the test button on the Residual Current Devise unit c) Switch the power on and off d) Run the tool at top speed to see if it cuts out 16) If you see burn marks on the casing of an electric drill, it means the drill has: a) Been held too tightly b) Had an electrical fault c) Been left in the sun d) Been left in the rain 17) You need to use a 230 volt item of equiptment. How should you protect yourself from an electric shock? a) Use a generator b) Put up saftey screens around you c) Use a portable Residual Current Devise d) Wear rubber boots and gloves 18) The PAT test label on a power tool tells you: a) When the next saftey check is due b) When the tool was made c) Who tested the tool before it left the factory d) It's earth-loop impedance 19) The tempory 110 volt electrical distribution box you want to use is too far away. What sould you do? a) Unplug the other extension leads and move the distribution box yourself b) Tell an electrician who is working nearby to move it for you c) Ask the superviser to arrange for it to be moved d) Use several extention leads plugged into each other 20) Why should you try to use battery-powered tools rather than electrical ones? a) They are cheaper to run b) They will not give you an electric shock c) They will not give you hand-arm vibration d) They do not need to be tested or serviced 21) Why do building sites use 110 volt electricity supply instead of the useual 230 volt demestic supply? a) It is cheaper b) It is less likely to kill you c) It moves faster along cables d) It is safer for the enviroment 22) If you need to use a power tool in a waterlogged part of the site, it is safest to: a) Wear wellington boots b) Use an air powerd tool if possible c) Only use 230 volt equiptment d) Wrap a plastic bag around the tool

Quiz2 Electrical saftey

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