1) What kind of material does not conduct an electrical current a) Conductor b) Consumer c) Cable d) Insulator 2) A cable that is round and contains 2 or 3 cores and comprises multi-strand conductors could be described as: a) flux b) flax c) flex d) di-electric 3) A piece of equipment that designed to mitigate impact damage to the cranium is termed: a) enclosure b) bumper c) bump cap d) hard hat 4) What is the name of the device that when inserted into an electrical power outlet, provides electrical energy to an appliance a) power provider b) isolator c) fused connection unit d) 3 pin plug 5) Copper: a) conducts electricity b) does not conduct electrical current c) is seldom used in electrical work d) is the only conductor 6) Sidecutters are commonly used to a) cut any size of cable b) cut thin sheet steel c) cut only large conductors d) cut relatively small cables and conductors 7) Locking off refers to the action of: a) closing the door after you b) punching a time card c) securely locking the source of power d) shutting down a computer 8) Before locking off a supply you should a) identify the source of power b) identify where the keys are c) identify yourself to security d) identify the circuit 9) The device cuts power to a circuit or device. It is a: a) power cutout b) isolator c) switch d) isograph 10) The correct term for the brown wire is: a) brown b) live c) line d) phase 11) ‘twin and earth’ cable is more properly called: a) ac cable b) pvc/pvc twin and cpc c) sheathed cable d) installation cable 12) The 3 conductors in pvc/pvc twin and cpc cable are: a) line, neutral and cpc b) live, neutral and cpc c) phase, neutral and cpc d) line, neutral and earth 13) An open circuit could be described as: a) a circuit you can join anything on to b) an incomplete circuit c) a ‘nomally closed’ circuit d) a circuit that is switched 14) Lamps are dim when: a) the switch is in the open position b) the circuit is closed c) the lamp is wired in series with another d) the lamp is wired in parallel with another 15) The minimum bending radius of a cable can be calculated by: a) doubling the conductor size b) taking into account the overall dia of the cable and looking up the bending factor in the OSG c) taking into account the overall csa of the cable and looking up the bending factor in the OSG d) D there is no minimum bending radius, only a maximum one 16) The most suitable tool for taking a large ‘insitu’ measurement would be: a) laser measure b) micrometer c) laser level d) tape measure 17) CCU is the shorthand for: a) consumer control unit b) customer control unit c) continuous control unit d) customer control umbrella 18) The uk mains voltage is: a) 500 volts b) 400 Volts c) 240 volts d) 230 volts 19) The device used to check a circuit for dead is called: a) alternative protection instrument b) Circuit Prover c) circuit tester d) approved voltage indicator 20) Termination of a cable involves: a) joining one or more cables securely together or to an appliance b) tightening a screw c) placing cables in a terminal in parallel d) ensuring that cpcs are not in contact with each other 21) The cpc could be considered as: a) an alternative way of supplying power b) a way of preventing short circuits c) reducing the risk of overload d) a safety conductor 22) A switch is method by which we: a) control a lamp b) prevent unauthorised use c) ensure safety by disconnection d) control a circuit 23) The method used by electricians to ensure that no current is present prior to working on a circuit is called: a) safe insulation procedure b) safety insulation process c) safe isolation procedure d) safe isolation protocol 24) Retaining the key after locking off is done so as to: a) keep control of the state of the isolator b) make it difficult for other workers c) ensure you can get to the isolator in an emergency d) isolate the supply 25) Cable clipping is a form of: a) hammering a nail in a wall b) aesthetic pleasure c) cable support d) making cables look nice 26) The type of current that can be found in a domestic premises is: a) polyphase b) alternating c) multiphase d) direct 27) A series circuit: a) is seldom used b) often used c) only used for lighting circuits d) used only for emergency circuits 28) A conductor could be termed as a: a) a really bad insulator b) a very good insulator c) an undesirable phenomenon d) a cable 29) When checking that a circuit is isolated the final check a) is to the AVI itself b) ensures that there is no power c) confirms the line is dead d) confirms the neutral is not broken 30) The blue wire a) Is never connected to a switch b) is only every used as a neutral c) is sometimes used for other circuits d) can be used to carry switched current if correctly marked

basic electrical week 4

by Anonymous
Embed

Leaderboard

Visual style

Options

Switch template

Continue editing: ?