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electrical
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    • 問題数 61 • 2023/12/06

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    問題一覧

  • 1

    V is a SI unit symbol for what?

    volts

  • 2

    When multiplying the Scale of SI units. -What is a Kilovolt?

    1000V

  • 3

    Within Circuit Protection. What do we use to create a disconnection when electrical Current is excessive?

    a fuse

  • 4

    What can we use in a circuit to create a voltage drop?

    resistor

  • 5

    Which of the following is an electrical component?

    LED

  • 6

    What is a Diode?

    an electrical component

  • 7

    When describing cables. An insulator...

    contains few free electrons

  • 8

    To Screen a cable, we add the following to a basic cable;

    tinned copper braid

  • 9

    What is TRUE of screened cables?

    screened cables are more secure

  • 10

    How does a fibre optic cable work?

    it uses light to pass data

  • 11

    The passage of electric current through the body can cause?

    respiratory failure

  • 12

    Which of the following is a method of testing batteries?

    on load

  • 13

    Batteries can be identified by codes printed or stamped on the casing. They include details such as?

    cell Chemistry

  • 14

    DC in electrical engineering stands for?

    direct current

  • 15

    AC would typically be used for what equipment?

    a domestic toaster

  • 16

    What power source turns chemical energy into electrical energy?

    a battery

  • 17

    What can we use to transfer data without using voltage?

    fibre optic cable

  • 18

    A Thermocouple produces a voltage dependent upon what?

    temperature

  • 19

    What uses the "photoelectric effect" to create a voltage?

    solar cells

  • 20

    What does AC stand for in electrical engineering?

    alternating current

  • 21

    Give an example of cable damage?

    scuffing

  • 22

    How do we orientate connectors/plugs?

    use key ways and refer to official documentation

  • 23

    Before disconnecting a plug, we must ensure what?

    power is disconnected

  • 24

    An Ammeter must be connected in?

    series

  • 25

    A Safety Ohmeter is used to measure?

    low resistance values

  • 26

    An insulation tester (Robin) uses what to test the quality of insulation?

    high voltage

  • 27

    Discoloration of cable insulation could indicate?

    overheating

  • 28

    Damaged cables should be replaced with?

    identical cable, being careful to follow previous routing

  • 29

    A Digital multimeter has the integral stand missing on issue from stores, can you still use it?

    no, reject it and inform stores of the defect

  • 30

    When carrying out a resistance check the power on the equipment being tested should be?

    off

  • 31

    A Go-No Go is used to carry out a Before-use test on an AMP crimping tool (conductor) Where should it be placed?

    the locater side

  • 32

    P.T.T stands for;

    precision termination tools

  • 33

    What is the purpose of the window on a CECC75201 (602) crimp?

    it is used to be observe wire stands to check the conductor has been crimped

  • 34

    Why do frame wire strippers incorporate a ratchet mechanism?

    they don’t use a ratchet mechanism

  • 35

    Watts are a measure of;

    power

  • 36

    An open circuit could indicate a;

    broken/severed copper wire or cable

  • 37

    High data rates are possible with the use of;

    fibre optic cables

  • 38

    Which of the following can store and discharge an electrical charge?

    a capacitor

  • 39

    Care must be taken when working with what type of cables even if the power is off?

    HT cable

  • 40

    We can use colour charts to select the value and tolerance of?

    resistors

  • 41

    What electrical device can step-up or step-down voltages?

    transformer

  • 42

    What electrical component allows electricity to flow in one direction only?

    a diode

  • 43

    In Ohms law R (resistance) equals;

    V divided by I

  • 44

    The Higher the wattage;

    the more power is used

  • 45

    The Electromotive force (EMF) that moves electrons, is abbreviated to the following SI unit;

    V

  • 46

    To lower a voltage from 9v to 5v within a circuit can be achieved using a;

    resistor

  • 47

    Which of the following is an insulator?

    plastic

  • 48

    Which of the following is a type of battery?

    lead/acid

  • 49

    What are the components of a basic electrical cable?

    an insulator wrapped around a conductor

  • 50

    how do we adjust the crimping depth on a DMC tool?

    the rotary

  • 51

    2 or more cells joined togther can be defined as?

    a battery

  • 52

    to measure low resistance values we use a?

    a safety ohm meter

  • 53

    when placing AMP crimps on a terminal block the nut needs to be?

    torqued down as per AP

  • 54

    we need to make a cable more secure how do we do this?

    a screen made of copper braid

  • 55

    a battery contains

    DC

  • 56

    what is measured in series

    AMPS

  • 57

    what can we use to give voltage dependent upon temperature

    thermocouple

  • 58

    to ensure a full cycle of the crimp tool has taken place we use a?

    a dual jaw system

  • 59

    what state is heat shrink after the application of heat?

    recovered

  • 60

    secondary battery?

    wet and rechargeable

  • 61

    primary battery?

    dry and non rechargeable

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