Council for Mineral Technology
MINQUIZ 2009
NATIONAL COMPETITION
ORAL QUIZ
24 July 2009
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PRACTICE
QUESTION
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1.
PRACTICE QUESTION
If you put 4 scientists, 3 engineers, 2
managers, 1 accountant and 1 secretary
(generally referred to as a “Committee”)
together in a poorly-ventilated room, on
average how long will it take for them to
reach consensus?
A.
B.
C.
D.
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10 minutes
10 hours
10 days
Never
MULTIPLE
CHOICE
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1.
MULTIPLE CHOICE
An object with an initial positive velocity is
shot vertically upward into the air. Which
of the following correctly describes the
velocity and acceleration of the object at
its maximum height?
A.
B.
C.
D.
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velocity
positive
zero
negative
zero
acceleration
positive
zero
negative
negative
MULTIPLE CHOICE
2.
Which of the molecules drawn below
contains polar covalent bonds but is not a
polar molecule?
A.
B.
C.
D.
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I only
III only
II and IV only
I and III only
3.
MULTIPLE CHOICE
What occurs to the iodine ion during the
following reaction?
2I-(aq) + Br2(l) → 2Br-(aq) + I2(s)
A.
B.
C.
D.
It is oxidized & its oxidation number increases
It is oxidized & its oxidation number decreases
It is reduced & its oxidation number increases
It is reduced & its oxidation number decreases
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4.
MULTIPLE CHOICE
The roots of an equation is 4  2a  16
For which value of a will there be only one
solution?
A.
B.
C.
D.
8
16
-8
4
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[2 x (-8) + 16 = 0]
5.
MULTIPLE CHOICE
What is the missing number in the sequence:
13 7 18 10 5 ? 9 1 12
A.
B.
C.
D.
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14
15
16
17
6
(working inwards, sum of L & R = 19)
6.
MULTIPLE CHOICE
What is the next letter in the following odd
sequence?
O T T F F S S E ?
A.
B.
C.
D.
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E
F
N (First letter of One, Two, Three, etc)
G
7.
MULTIPLE CHOICE
Which space shuttle recently carried
out repairs to the Hubble Telescope?
A.
B.
C.
D.
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Discovery
Endeavour
Atlantis
Challenger
8.
MULTIPLE CHOICE
What is the name of the layer of the
atmosphere closest to the Earth?
A.
B.
C.
D.
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Thermosphere
Troposphere
Mesosphere
Stratosphere
9.
MULTIPLE CHOICE
Which of the following metals has magnetic
properties?
A.
B.
C.
D.
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Nickel
Zinc
Copper
Aluminium
10.
MULTIPLE CHOICE
Which geological feature contains the
highest known concentration of gold
deposits?
A.
B.
C.
D.
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Bushveld Complex
Phalaborwa Igneous Complex
Witwatersrand Basin
Transvaal Supergroup
END OF
MULTIPLE CHOICE
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RAPID FIRE:
WESTERN CAPE
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RAPID FIRE: WESTERN CAPE
1.
Which of the following substances won’t
form a basic solution when added to water?
A.
B.
C.
D.
Na2O
CaO
Rb2O
NO2
Metallic oxides are basic and non-metallic
oxides are acidic. NO2 is a non-metallic oxide.
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RAPID FIRE: WESTERN CAPE
2.
Find the value of the resistance which
would limit the current flow to 3 A when
connected to a 9 V supply.
A.
B.
C.
D.
27 Ω
0.33 Ω
3Ω
0.033 Ω
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RAPID FIRE: WESTERN CAPE
3.
Materials through which images cannot
be seen, but through which light can
pass are called…
A.
B.
C.
D.
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Luminous
Transparent
Translucent
Opaque
RAPID FIRE: WESTERN CAPE
4.
What metal ore is mined at Thabazimbi?
Answer: Iron
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RAPID FIRE: WESTERN CAPE
5.
How many carbon atoms are present in a
molecule of octane?
Answer: 8
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RAPID FIRE: WESTERN CAPE
6.
What did James Chadwick discover?
Answer: The neutron
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RAPID FIRE: WESTERN CAPE
7.
In which constellation will you find the
star Sirius?
Answer: Canis Major
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RAPID FIRE: WESTERN CAPE
8.
What metal element would you find in
talc?
Answer: Magnesium
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RAPID FIRE: WESTERN CAPE
9.
Which is a sedimentary rock? Slate or
limestone?
Answer: Limestone
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RAPID FIRE: WESTERN CAPE
10. Solve for x if 4 x 2  9  0
A. none of the answers below
B.
x
C.
x
D.
x
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3
2
3
2
9
4
9
x     x is imaginary
4
END OF RAPID
FIRE:
WESTERN CAPE
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RAPID FIRE:
NORTH WEST
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RAPID FIRE: NORTH WEST
1.
Which of the following compounds will
form an acidic solution when dissolved in
water?
A.
B.
C.
D.
Cs2O
SO2
Rb2O
SrO
Non-metallic oxides are acidic and non-metallic
oxides are acidic. SO2 is a non-metallic oxide. All
others are metallic oxides.
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RAPID FIRE: NORHT WEST
2.
A 100 Ω resistor is connected to a 20 V
supply. What current flows?
A.
B.
C.
D.
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2 000 A
5A
0.02 A
0.2 A
RAPID FIRE: NORTH WEST
3.
A transparent material is one through
which…
A.
B.
C.
D.
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Objects can be seen clearly
Light cannot pass
Light travels in straight lines
Light is bent
RAPID FIRE: NORTH WEST
4.
What metal is mined at Phalaborwa?
Answer: Copper
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RAPID FIRE: NORTH WEST
5.
How many carbon atoms are present in a
molecule of butane?
Answer: 4
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RAPID FIRE: NORTH WEST
6.
What did J. J. Thomson discover?
Answer: The electron
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RAPID FIRE: NORTH WEST
7.
In which constellation will you find the star
Rigel?
Answer: Orion
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RAPID FIRE: NORTH WEST
8.
What metal element would you find in topaz?
Answer: Aluminium
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RAPID FIRE: NORTH WEST
9.
Which is a metamorphic rock? Marble or
sandstone?
Answer: Marble
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RAPID FIRE: NORTH WEST
10.
If x  4y  3  0 and y  3
then x could be equal to…
A.
B.
C.
D.
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4
-4
3
All of the above
2 x  12
END OF RAPID
FIRE:
NORTH WEST
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RAPID FIRE:
LIMPOPO
2 x  12
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RAPID FIRE: LIMPOPO
1.
Which of the following substances
won’t turn red litmus blue?
A. A solution of sodium hydroxide in water
B. Water into which carbon dioxide has been
bubbled
C. A solution of strontium oxide in water
D. Dishwater which contains ammonia
A solution of carbon dioxide in water forms
carbonic acid which is acidic and will not turn
red litmus blue. All other substances are basic.
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RAPID FIRE: LIMPOPO
2.
What voltage supply is needed to
provide a current of 2 A through a 40 Ω
resistor?
A.
B.
C.
D.
20 V
0.5 V
80 V
0.05 V
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RAPID FIRE: LIMPOPO
3.
Materials that allow light to pass, but
through which objects cannot be clearly
seen are said to be…
A.
B.
C.
D.
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Luminous
Transparent
Translucent
Opaque
RAPID FIRE: LIMPOPO
4.
What is the main metal mined at
Rustenburg?
Answer: Platinum
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RAPID FIRE: LIMPOPO
5.
How many carbon atoms are present in a
molecule of benzene?
Answer: 6
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RAPID FIRE: LIMPOPO
6.
What did Wilhelm Rontgen discover?
Answer: X-rays
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RAPID FIRE: LIMPOPO
7.
In which constellation will you find the star
Castor?
Answer: Gemini
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RAPID FIRE: LIMPOPO
8.
What metal element would you find in
fluorite?
Answer: Calcium
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RAPID FIRE: LIMPOPO
9.
Which is a metamorphic rock? Granite or
slate?
Answer: Slate
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RAPID FIRE: LIMPOPO
10.
If
2 x .4 y  1 then x 
A.
B.
C.
D.
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0
y
2y
-2y
END OF RAPID
FIRE:
LIMPOPO
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RAPID FIRE:
GAUTENG
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RAPID FIRE: GAUTENG
1.
Which of the following gases isn’t acidic?
A.
B.
C.
D.
N2
CO2
NO2
H2S
All other gases are acidic. Nitrogen is neutral.
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RAPID FIRE: GAUTENG
2.
What will be the resistance of a resistor
when a current of 2 A flows with a volt
supply of 6 volts?
A.
B.
C.
D.
12 Ω
0.33 Ω
3Ω
300 Ω
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RAPID FIRE: GAUTENG
3.
Bodies that can radiate light are called…
A.
B.
C.
D.
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Irradiators
Luminous
Non-Luminous
Reflectors
RAPID FIRE: GAUTENG
4.
What metal is mined at Sishen?
Answer: Iron
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RAPID FIRE: GAUTENG
5.
How many carbon atoms are present in a
molecule of methyl propane?
Answer: 4
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RAPID FIRE: GAUTENG
6.
What did Alexander Fleming discover?
Answer: Penicillin
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RAPID FIRE: GAUTENG
7.
In which constellation will you find the star
Pollux?
Answer: Gemini
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RAPID FIRE: GAUTENG
8.
What metal element would you find in
ilmenite?
Answer: Iron
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RAPID FIRE: GAUTENG
9.
Which is an igneous rock? Dolomite or
basalt?
Answer: Basalt
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RAPID FIRE: GAUTENG
10.
If A  x 2  4 x  9 calculate the maximum
1
value of B  2
x  4x  9
A.
1
9
B.
1
5
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C.
D.
1
13
1
2
END OF RAPID
FIRE:
GAUTENG
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RAPID FIRE:
EASTERN CAPE
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RAPID FIRE: EASTERN CAPE
1.
Which of the following substances will turn
blue litmus red?
A.
B.
C.
D.
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A solution of calcium hydroxide
Dishwater containing ammonia
Vinegar
Sodium bicarbonate dissolved in water
RAPID FIRE: EASTERN CAPE
2.
What current would flow through a
resistor of 40 Ω connected to a 10 V
supply?
A.
B.
C.
D.
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400 A
0.25 A
4A
0.025 A
RAPID FIRE: EASTERN CAPE
3.
In order for us to see non-luminous
bodies, the bodies must ____ light into
our eyes.
A.
B.
C.
D.
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Refract
Radiate
Reflect
Diffract
RAPID FIRE: EASTERN CAPE
4.
What metal is mined at Welkom?
Answer: Gold
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RAPID FIRE: EASTERN CAPE
5.
How many carbon atoms are present in
a molecule of acetic acid?
Answer: 2
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RAPID FIRE: EASTERN CAPE
6.
What did Hans Christian Oersted discover?
Answer: Magnetic field around an electrical
conductor (electromagnetism).
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RAPID FIRE: EASTERN CAPE
7.
In which constellation will you find the
star Regulus?
Answer: Leo
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RAPID FIRE: EASTERN CAPE
8.
What metal element would you find in
rutile?
Answer: Titanium
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RAPID FIRE: EASTERN CAPE
9.
Which is a metamorphic rock? Slate or
dolomite?
Answer: Slate
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10.
If
A.
B.
C.
D.
RAPID FIRE: EASTERN CAPE
1
1
x   5 then x   ?
x
x
2
2
25
24
23
22
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END OF
RAPID FIRE
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FASTEST
FINGER
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FASTEST FINGER
1.
As the distance of an object above the
surface of the earth is greatly increased, the
weight of the object would…
A.
B.
C.
D.
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Increase
Double
Remain the same
Decrease
FASTEST FINGER
2.
What is the chemical formula of calcite?
A.
B.
C.
D.
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Ca(OH)2
CaCO3
Ca(HCO3)2
CaO
FASTEST FINGER
3.
What metals are used to make the alloy
solder?
A.
B.
C.
D.
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Tin and lead
Tin and copper
Lead and Aluminium
Copper and Aluminium
FASTEST FINGER
4.
Which of these metals has the highest
density?
A.
B.
C.
D.
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Gold
Lead
Mercury
Silver
FASTEST FINGER
5.
Which of the following elements has the
smallest atomic radius?
A.
B.
C.
D.
I
At
Br
Cl
Cl is top on the halogen group and atomic
radius increases down group. So Cl is smallest.
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FASTEST FINGER
6.
What is the value of A?
x
1
2
3
y
3
10
29
A
B
C
D
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121
123
125
127
4
66
5
A
FASTEST FINGER
7.
Referring to the right-angled triangle, the
value of sin   cos  will be…
A.
B.
C.
D.
Smaller than x
Equal to x
Smaller than 1
Greater than 1
b a ba


 1..... a  b  x 
 sin   cos    
x x
x


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FASTEST FINGER
8.
What happens during gold elution?
A.
B.
C.
D.
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A solution of gold is diluted
Activated charcoal containing gold ions
is washed with NaOH
Activated charcoal is used to adsorb
gold ions
Electric current is used to concentrate
the solution
FASTEST FINGER
9.
Which of these gases doesn’t form acid
rain?
A.
B.
C.
D.
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Carbon dioxide
Methane
Sulfur dioxide
Nitrogen dioxide
FASTEST FINGER
10.
In which of these star constellations will
you see a galaxy without a telescope?
A.
B.
C.
D.
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Aries
Orion
Andromeda
Aquarius
END OF
FASTEST FINGER
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FASTEST FINGER:
EXTRA TIME
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FASTEST FINGER: EXTRA TIME
1.
Which of the following elements is
the most electronegative?
A.
B.
C.
D.
C
O
B
N
Oxygen, since electronegativity increases left
to right along the Periodic Table.
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FASTEST FINGER: EXTRA TIME
2.
In triangle ABC, DE is drawn parallel to
BC. The value of x is…
A.
B.
C.
D.
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2
3
4
5
FASTEST FINGER: EXTRA TIME
3.
In ferric chloride, in what state is the iron
atom?
A.
B.
C.
D.
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Fe2+
Fe2Fe3+
Fe3-
FASTEST FINGER: EXTRA TIME
4.
Which is the most abundant noble gas
in the Earth’s atmosphere?
A.
B.
C.
D.
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Nitrogen
Argon
Helium
Neon
FASTEST FINGER: EXTRA TIME
5.
Who first discovered natural radioactivity?
A.
B.
C.
D.
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Becquerel
Rontgen
Rutherford
Curie
END OF
FASTEST FINGER:
EXTRA TIME
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FASTEST FINGER:
SUDDEN DEATH
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FASTEST FINGER: SUDDEN DEATH
1.
Which of the following elements has the
largest atomic radius?
A.
B.
C.
D.
N
Ne
F
O
Nitrogen, since atomic radius decreases along
the Periodic Table.
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FASTEST FINGER: SUDDEN DEATH
2.
A coin is tossed and a die is thrown. What
is the probability of getting an uneven
number and tails on the coin?
1
A.
2
1
C. 12
1
8
1
4
B.
Puneven 
1
2
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D.
, Ptails  2 , Puneven   tails  2  2 
1
1
1
1
4

FASTEST FINGER: SUDDEN DEATH
3.
What is the colour of a sodium dichromate
solution?
A.
B.
C.
D.
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Blue
Colourless
Orange
Purple
FASTEST FINGER: SUDDEN DEATH
4.
Which of the following gold mines is the
deepest?
A.
B.
C.
D.
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Western Deep Levels
Moab Khutsong
Deelkraal
Driefontein
FASTEST FINGER: SUDDEN DEATH
5.
Which of these scientists has an element
named after him?
A.
B.
C.
D.
Planck
Bohr
Dalton
Thomson
Element 107 Bh Bohrium
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THE END!
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