T2 Part 4 Flashcards
The voltage between any conductor and earth is? :
346 Volts
Len’s law states that? :
An induced E.M.F will always oppose the
effect producing it.
A distribution board should be located in? :
In a location where it is
readily accessible
The reason for removing a section of the outer sheath of SWA cable
before terminating the gland is to ensure that the? : .
Armour conductors are clamped in the gland body
The centrifugal switch of a single-phase split phase induction motor is used to? :
Disconnect the start winding.
The total charge of the circuit is? :
QT = Q1 = Q2 = Q3.
What is the formula for used to find the RMS value of voltage if its
peak voltage is known? :
RMS=peak×0.707
If the peak value of a waveform is 325 volts what is the formula
used to calculate the R.M.S value of the same waveform? :
325×0.707
The opposition offered to the flow of alternating current in a circuit containing a capacitor is known :
Capacitive reactance
A standard aluminium electrolytic capacitor is an example of :
Polarised capacitor
Which of the following meters would be of most use when testing
capacitors? :
Analogue meter.
Static induction is the principle behind the operation of the:
Transformer
The colour of a 115V plug and socket is:
Yellow
If a fluorescent lamp flickers which of the following is possibly the
fault? :
starter switch is faulty
Which is not an Advantage of a Squirrel Cage Induction Motor :
The slip rings and brushes are easily replaced
