mirror of
https://github.com/idanoo/nzart-exam-generator.git
synced 2024-12-04 22:26:58 +00:00
265 lines
3.3 KiB
Plaintext
265 lines
3.3 KiB
Plaintext
% FILENAME = N3.TXT
|
|
% Electronics Fundamentals
|
|
% Release version 3, October 2001
|
|
% Question 3.7 replaced 9 Aug 2012
|
|
|
|
% Question: 1
|
|
#3.1 The element Silicon is:
|
|
|
|
a conductor
|
|
|
|
an insulator
|
|
|
|
a superconductor
|
|
|
|
a semiconductor
|
|
|
|
% ans 4
|
|
|
|
% Question: 2
|
|
#3.2 An element which falls somewhere between being an insulator and a conductor is called a:
|
|
|
|
P-type conductor
|
|
|
|
intrinsic conductor
|
|
|
|
semiconductor
|
|
|
|
N-type conductor
|
|
|
|
% ans 3
|
|
|
|
% Question: 3
|
|
#3.3 In an atom:
|
|
|
|
the protons and the neutrons orbit the nucleus in opposite directions
|
|
|
|
the protons orbit around the neutrons
|
|
|
|
the electrons orbit the nucleus
|
|
|
|
the electrons and the neutrons orbit the nucleus
|
|
|
|
% ans 3
|
|
|
|
% Question: 4
|
|
#3.4 An atom that loses an electron becomes:
|
|
|
|
a positive ion
|
|
|
|
an isotope
|
|
|
|
a negative ion
|
|
|
|
a radioactive atom
|
|
|
|
% ans 1
|
|
|
|
% Question: 5
|
|
#3.5 An electric current passing through a wire will produce around the conductor:
|
|
|
|
an electric field
|
|
|
|
a magnetic field
|
|
|
|
an electrostatic field
|
|
|
|
nothing
|
|
|
|
% ans 2
|
|
|
|
% Question: 6
|
|
#3.6 These magnetic poles repel:
|
|
|
|
unlike
|
|
|
|
like
|
|
|
|
positive
|
|
|
|
negative
|
|
|
|
% ans 2
|
|
|
|
% Question: 7
|
|
#3.7 A common use for a magnet is in:
|
|
|
|
A computer speaker
|
|
|
|
An optical mouse
|
|
|
|
A keyboard
|
|
|
|
A magnetic loop antenna
|
|
|
|
% ans 1
|
|
|
|
% Question: 8
|
|
#3.8 The better conductor of electricity is:
|
|
|
|
copper
|
|
|
|
carbon
|
|
|
|
silicon
|
|
|
|
aluminium
|
|
|
|
% ans 1
|
|
|
|
% Question: 9
|
|
#3.9 The term describing opposition to electron flow in a metallic circuit is:
|
|
|
|
current
|
|
|
|
voltage
|
|
|
|
resistance
|
|
|
|
power
|
|
|
|
% ans 3
|
|
|
|
% Question: 10
|
|
#3.10 The substance which will most readily allow an electric current to flow is:
|
|
|
|
an insulator
|
|
|
|
a conductor
|
|
|
|
a resistor
|
|
|
|
a dielectric
|
|
|
|
% ans 2
|
|
|
|
% Question: 11
|
|
#3.11 The plastic coating formed around wire is:
|
|
|
|
an insulator
|
|
|
|
a conductor
|
|
|
|
an inductor
|
|
|
|
a magnet
|
|
|
|
% ans 1
|
|
|
|
% Question: 12
|
|
#3.12 The following is a source of electrical energy:
|
|
|
|
p-channel FET
|
|
|
|
carbon resistor
|
|
|
|
germanium diode
|
|
|
|
lead acid battery
|
|
|
|
% ans 4
|
|
|
|
% Question: 13
|
|
#3.13 An important difference between a common torch battery and a lead acid battery is that only the lead acid battery:
|
|
|
|
has two terminals
|
|
|
|
contains an electrolyte
|
|
|
|
can be re-charged
|
|
|
|
can be effectively discharged
|
|
|
|
% ans 3
|
|
|
|
% Question: 14
|
|
#3.14 As temperature increases, the resistance of a metallic conductor:
|
|
|
|
increases
|
|
|
|
decreases
|
|
|
|
remains constant
|
|
|
|
becomes negative
|
|
|
|
% ans 1
|
|
|
|
% Question: 15
|
|
#3.15 In an n-type semiconductor, the current carriers are:
|
|
|
|
holes
|
|
|
|
electrons
|
|
|
|
positive ions
|
|
|
|
photons
|
|
|
|
% ans 2
|
|
|
|
% Question: 16
|
|
#3.16 In a p-type semiconductor, the current carriers are:
|
|
|
|
photons
|
|
|
|
electrons
|
|
|
|
positive ions
|
|
|
|
holes
|
|
|
|
% ans 4
|
|
|
|
% Question: 17
|
|
#3.17 An electrical insulator:
|
|
|
|
lets electricity flow through it in one direction
|
|
|
|
does not let electricity flow through it
|
|
|
|
lets electricity flow through it when light shines on it
|
|
|
|
lets electricity flow through it
|
|
|
|
% ans 2
|
|
|
|
% Question: 18
|
|
#3.18 Four good electrical insulators are:
|
|
|
|
plastic, rubber, wood, carbon
|
|
|
|
glass, wood, copper, porcelain
|
|
|
|
paper, glass, air, aluminium
|
|
|
|
glass, air, plastic, porcelain
|
|
|
|
% ans 4
|
|
|
|
% Question: 19
|
|
#3.19 Three good electrical conductors are:
|
|
|
|
copper, gold, mica
|
|
|
|
gold, silver, wood
|
|
|
|
gold, silver, aluminium
|
|
|
|
copper, aluminium, paper
|
|
|
|
% ans 3
|
|
|
|
% Question: 20
|
|
#3.20 The name for the flow of electrons in an electric circuit is:
|
|
|
|
voltage
|
|
|
|
resistance
|
|
|
|
capacitance
|
|
|
|
current
|
|
|
|
% ans 4
|