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