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Council for Mineral Technology Copyright © Mintek 2009 MINQUIZ 2009 NATIONAL COMPETITION ORAL QUIZ 24 July 2009.

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Presentation on theme: "Council for Mineral Technology Copyright © Mintek 2009 MINQUIZ 2009 NATIONAL COMPETITION ORAL QUIZ 24 July 2009."— Presentation transcript:

1 Council for Mineral Technology Copyright © Mintek 2009 MINQUIZ 2009 NATIONAL COMPETITION ORAL QUIZ 24 July 2009

2 Copyright © Mintek 2009 PRACTICE QUESTION

3 Copyright © Mintek 2009 PRACTICE QUESTION 1. 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.10 minutes B.10 hours C.10 days D.Never

4 Copyright © Mintek 2009 MULTIPLE CHOICE

5 Copyright © Mintek 2009 MULTIPLE CHOICE 1.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? velocityacceleration A.positivepositive B. zerozero C.negativenegative D.zeronegative

6 Copyright © Mintek 2009 MULTIPLE CHOICE 2.Which of the molecules drawn below contains polar covalent bonds but is not a polar molecule? A. I only B. III only C. II and IV only D. I and III only

7 Copyright © Mintek 2009 MULTIPLE CHOICE 3.What occurs to the iodine ion during the following reaction? 2I - (aq) + Br 2 ( l ) → 2Br - (aq) + I 2 (s) A. It is oxidized & its oxidation number increases B. It is oxidized & its oxidation number decreases C. It is reduced & its oxidation number increases D. It is reduced & its oxidation number decreases

8 Copyright © Mintek 2009 MULTIPLE CHOICE 4.The roots of an equation is For which value of a will there be only one solution? A. 8 B. 16 C. -8[2 x (-8) + 16 = 0] D. 4

9 Copyright © Mintek What is the missing number in the sequence: ? A.14 (working inwards, sum of L & R = 19) B.15 C.16 D.17 MULTIPLE CHOICE

10 Copyright © Mintek 2009 MULTIPLE CHOICE 6. What is the next letter in the following odd sequence? O T T F F S S E ? A. E B. F C. N (First letter of One, Two, Three, etc) D. G

11 Copyright © Mintek 2009 MULTIPLE CHOICE 7. Which space shuttle recently carried out repairs to the Hubble Telescope? A.Discovery B.Endeavour C.Atlantis D.Challenger

12 Copyright © Mintek 2009 MULTIPLE CHOICE 8. What is the name of the layer of the atmosphere closest to the Earth? A.Thermosphere B.Troposphere C.Mesosphere D.Stratosphere

13 Copyright © Mintek 2009 MULTIPLE CHOICE 9. Which of the following metals has magnetic properties? A.Nickel B.Zinc C.Copper D.Aluminium

14 Copyright © Mintek 2009 MULTIPLE CHOICE 10. Which geological feature contains the highest known concentration of gold deposits? A.Bushveld Complex B.Phalaborwa Igneous Complex C.Witwatersrand Basin D.Transvaal Supergroup

15 Copyright © Mintek 2009 END OF MULTIPLE CHOICE

16 Copyright © Mintek 2009 RAPID FIRE: WESTERN CAPE

17 Copyright © Mintek 2009 Metallic oxides are basic and non-metallic oxides are acidic. NO 2 is a non-metallic oxide. RAPID FIRE: WESTERN CAPE 1.Which of the following substances won’t form a basic solution when added to water? A. Na 2 O B. CaO C. Rb 2 O D. NO 2

18 Copyright © Mintek 2009 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. 27 Ω B Ω C. 3 Ω D Ω

19 Copyright © Mintek 2009 RAPID FIRE: WESTERN CAPE 3. Materials through which images cannot be seen, but through which light can pass are called… A. Luminous B. Transparent C. Translucent D. Opaque

20 Copyright © Mintek 2009 RAPID FIRE: WESTERN CAPE 4. What metal ore is mined at Thabazimbi? Answer: Iron

21 Copyright © Mintek 2009 Answer: 8 RAPID FIRE: WESTERN CAPE 5. How many carbon atoms are present in a molecule of octane?

22 Copyright © Mintek 2009 RAPID FIRE: WESTERN CAPE 6. What did James Chadwick discover? Answer: The neutron

23 Copyright © Mintek 2009 RAPID FIRE: WESTERN CAPE 7. In which constellation will you find the star Sirius? Answer: Canis Major

24 Copyright © Mintek 2009 RAPID FIRE: WESTERN CAPE 8. What metal element would you find in talc? Answer: Magnesium

25 Copyright © Mintek 2009 RAPID FIRE: WESTERN CAPE 9. Which is a sedimentary rock? Slate or limestone? Answer: Limestone

26 Copyright © Mintek 2009 RAPID FIRE: WESTERN CAPE 10. Solve for x if A.none of the answers below B. C. D.

27 Copyright © Mintek 2009 END OF RAPID FIRE: WESTERN CAPE

28 Copyright © Mintek 2009 RAPID FIRE: NORTH WEST

29 Copyright © Mintek 2009 RAPID FIRE: NORTH WEST 1. Which of the following compounds will form an acidic solution when dissolved in water? A. Cs 2 O B. SO 2 C. Rb 2 O D. SrO Non-metallic oxides are acidic and non-metallic oxides are acidic. SO 2 is a non-metallic oxide. All others are metallic oxides.

30 Copyright © Mintek 2009 RAPID FIRE: NORHT WEST 2. A 100 Ω resistor is connected to a 20 V supply. What current flows? A A B. 5 A C A D. 0.2 A

31 Copyright © Mintek 2009 RAPID FIRE: NORTH WEST 3. A transparent material is one through which… A. Objects can be seen clearly B. Light cannot pass C. Light travels in straight lines D. Light is bent

32 Copyright © Mintek 2009 RAPID FIRE: NORTH WEST 4. What metal is mined at Phalaborwa? Answer: Copper

33 Copyright © Mintek 2009 RAPID FIRE: NORTH WEST 5. How many carbon atoms are present in a molecule of butane? Answer: 4

34 Copyright © Mintek 2009 RAPID FIRE: NORTH WEST 6. What did J. J. Thomson discover? Answer: The electron

35 Copyright © Mintek 2009 RAPID FIRE: NORTH WEST 7. In which constellation will you find the star Rigel? Answer: Orion

36 Copyright © Mintek 2009 RAPID FIRE: NORTH WEST 8. What metal element would you find in topaz? Answer: Aluminium

37 Copyright © Mintek 2009 RAPID FIRE: NORTH WEST 9. Which is a metamorphic rock? Marble or sandstone? Answer: Marble

38 Copyright © Mintek 2009 RAPID FIRE: NORTH WEST then x could be equal to… A. 4 B. -4 C. 3 D. All of the above 10. If and

39 Copyright © Mintek 2009 END OF RAPID FIRE: NORTH WEST

40 Copyright © Mintek 2009 RAPID FIRE: LIMPOPO

41 Copyright © Mintek 2009 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.

42 Copyright © Mintek 2009 RAPID FIRE: LIMPOPO 2. What voltage supply is needed to provide a current of 2 A through a 40 Ω resistor? A. 20 V B. 0.5 V C. 80 V D V

43 Copyright © Mintek 2009 RAPID FIRE: LIMPOPO 3. Materials that allow light to pass, but through which objects cannot be clearly seen are said to be… A. Luminous B. Transparent C. Translucent D. Opaque

44 Copyright © Mintek 2009 RAPID FIRE: LIMPOPO 4. What is the main metal mined at Rustenburg? Answer: Platinum

45 Copyright © Mintek 2009 RAPID FIRE: LIMPOPO 5. How many carbon atoms are present in a molecule of benzene? Answer: 6

46 Copyright © Mintek 2009 RAPID FIRE: LIMPOPO 6. What did Wilhelm Rontgen discover? Answer: X-rays

47 Copyright © Mintek 2009 RAPID FIRE: LIMPOPO 7. In which constellation will you find the star Castor? Answer: Gemini

48 Copyright © Mintek What metal element would you find in fluorite? RAPID FIRE: LIMPOPO Answer: Calcium

49 Copyright © Mintek 2009 RAPID FIRE: LIMPOPO 9. Which is a metamorphic rock? Granite or slate? Answer: Slate

50 Copyright © Mintek 2009 RAPID FIRE: LIMPOPO 10. If A.0 B. y C.2 y D.-2 y

51 Copyright © Mintek 2009 END OF RAPID FIRE: LIMPOPO

52 Copyright © Mintek 2009 RAPID FIRE: GAUTENG

53 Copyright © Mintek 2009 RAPID FIRE: GAUTENG 1. Which of the following gases isn’t acidic? A. N 2 B. CO 2 C. NO 2 D. H 2 S All other gases are acidic. Nitrogen is neutral.

54 Copyright © Mintek 2009 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. 12 Ω B Ω C. 3 Ω D. 300 Ω

55 Copyright © Mintek 2009 RAPID FIRE: GAUTENG 3. Bodies that can radiate light are called… A. Irradiators B. Luminous C. Non-Luminous D. Reflectors

56 Copyright © Mintek 2009 RAPID FIRE: GAUTENG 4. What metal is mined at Sishen? Answer: Iron

57 Copyright © Mintek 2009 RAPID FIRE: GAUTENG 5. How many carbon atoms are present in a molecule of methyl propane? Answer: 4

58 Copyright © Mintek 2009 RAPID FIRE: GAUTENG 6. What did Alexander Fleming discover? Answer: Penicillin

59 Copyright © Mintek 2009 RAPID FIRE: GAUTENG 7. In which constellation will you find the star Pollux? Answer: Gemini

60 Copyright © Mintek 2009 RAPID FIRE: GAUTENG 8. What metal element would you find in ilmenite? Answer: Iron

61 Copyright © Mintek 2009 RAPID FIRE: GAUTENG 9. Which is an igneous rock? Dolomite or basalt? Answer: Basalt

62 Copyright © Mintek 2009 RAPID FIRE: GAUTENG 10. If calculate the maximum value of A.C. B.D.

63 Copyright © Mintek 2009 END OF RAPID FIRE: GAUTENG

64 Copyright © Mintek 2009 RAPID FIRE: EASTERN CAPE

65 Copyright © Mintek 2009 RAPID FIRE: EASTERN CAPE 1. Which of the following substances will turn blue litmus red? A.A solution of calcium hydroxide B. Dishwater containing ammonia C. Vinegar D.Sodium bicarbonate dissolved in water

66 Copyright © Mintek 2009 RAPID FIRE: EASTERN CAPE 2. What current would flow through a resistor of 40 Ω connected to a 10 V supply? A. 400 A B A C. 4 A D A

67 Copyright © Mintek 2009 RAPID FIRE: EASTERN CAPE 3. In order for us to see non-luminous bodies, the bodies must ____ light into our eyes. A. Refract B. Radiate C. Reflect D. Diffract

68 Copyright © Mintek 2009 RAPID FIRE: EASTERN CAPE 4. What metal is mined at Welkom? Answer: Gold

69 Copyright © Mintek 2009 RAPID FIRE: EASTERN CAPE 5. How many carbon atoms are present in a molecule of acetic acid? Answer: 2

70 Copyright © Mintek 2009 RAPID FIRE: EASTERN CAPE 6. What did Hans Christian Oersted discover? Answer: Magnetic field around an electrical conductor (electromagnetism).

71 Copyright © Mintek 2009 RAPID FIRE: EASTERN CAPE 7. In which constellation will you find the star Regulus? Answer: Leo

72 Copyright © Mintek 2009 RAPID FIRE: EASTERN CAPE 8. What metal element would you find in rutile? Answer: Titanium

73 Copyright © Mintek 2009 RAPID FIRE: EASTERN CAPE 9. Which is a metamorphic rock? Slate or dolomite? Answer: Slate

74 Copyright © Mintek 2009 RAPID FIRE: EASTERN CAPE 10. If A. 25 B. 24 C. 23 D. 22

75 Copyright © Mintek 2009 END OF RAPID FIRE

76 Copyright © Mintek 2009 FASTEST FINGER

77 Copyright © Mintek 2009 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. Increase B. Double C. Remain the same D. Decrease

78 Copyright © Mintek 2009 FASTEST FINGER 2. What is the chemical formula of calcite? A.Ca(OH) 2 B.CaCO 3 C.Ca(HCO 3 ) 2 D.CaO

79 Copyright © Mintek 2009 FASTEST FINGER 3. What metals are used to make the alloy solder? A.Tin and lead B.Tin and copper C.Lead and Aluminium D.Copper and Aluminium

80 Copyright © Mintek 2009 FASTEST FINGER 4. Which of these metals has the highest density? A.Gold B.Lead C.Mercury D.Silver

81 Copyright © Mintek 2009 FASTEST FINGER 5. Which of the following elements has the smallest atomic radius? A. I B. At C. Br D. Cl Cl is top on the halogen group and atomic radius increases down group. So Cl is smallest.

82 Copyright © Mintek 2009 FASTEST FINGER 6. What is the value of A? x y A A 121 B 123 C 125 D 127

83 Copyright © Mintek Referring to the right-angled triangle, the value of will be… A.Smaller than x B.Equal to x C.Smaller than 1 D.Greater than 1 FASTEST FINGER

84 Copyright © Mintek 2009 FASTEST FINGER 8. What happens during gold elution? A.A solution of gold is diluted B.Activated charcoal containing gold ions is washed with NaOH C.Activated charcoal is used to adsorb gold ions D.Electric current is used to concentrate the solution

85 Copyright © Mintek 2009 FASTEST FINGER 9. Which of these gases doesn’t form acid rain? A.Carbon dioxide B.Methane C.Sulfur dioxide D.Nitrogen dioxide

86 Copyright © Mintek 2009 FASTEST FINGER 10. In which of these star constellations will you see a galaxy without a telescope? A.Aries B.Orion C.Andromeda D.Aquarius

87 Copyright © Mintek 2009 END OF FASTEST FINGER

88 Copyright © Mintek 2009 FASTEST FINGER: EXTRA TIME

89 Copyright © Mintek 2009 FASTEST FINGER: EXTRA TIME 1. Which of the following elements is the most electronegative? A.C B.O C.B D.N Oxygen, since electronegativity increases left to right along the Periodic Table.

90 Copyright © Mintek In triangle ABC, DE is drawn parallel to BC. The value of x is… A.2 B.3 C.4 D.5 FASTEST FINGER: EXTRA TIME

91 Copyright © Mintek 2009 FASTEST FINGER: EXTRA TIME 3. In ferric chloride, in what state is the iron atom? A.Fe 2+ B.Fe 2- C.Fe 3+ D.Fe 3-

92 Copyright © Mintek 2009 FASTEST FINGER: EXTRA TIME 4. Which is the most abundant noble gas in the Earth’s atmosphere? A.Nitrogen B.Argon C.Helium D.Neon

93 Copyright © Mintek 2009 FASTEST FINGER: EXTRA TIME 5. Who first discovered natural radioactivity? A.Becquerel B.Rontgen C.Rutherford D.Curie

94 Copyright © Mintek 2009 END OF FASTEST FINGER: EXTRA TIME

95 Copyright © Mintek 2009 FASTEST FINGER: SUDDEN DEATH

96 Copyright © Mintek 2009 FASTEST FINGER: SUDDEN DEATH 1. Which of the following elements has the largest atomic radius? A. N B. Ne C. F D. O Nitrogen, since atomic radius decreases along the Periodic Table.

97 Copyright © Mintek A coin is tossed and a die is thrown. What is the probability of getting an uneven number and tails on the coin? A.C. B.D. FASTEST FINGER: SUDDEN DEATH

98 Copyright © Mintek 2009 FASTEST FINGER: SUDDEN DEATH 3. What is the colour of a sodium dichromate solution? A.Blue B.Colourless C.Orange D.Purple

99 Copyright © Mintek 2009 FASTEST FINGER: SUDDEN DEATH 4. Which of the following gold mines is the deepest? A.Western Deep Levels B.Moab Khutsong C.Deelkraal D.Driefontein

100 Copyright © Mintek 2009 FASTEST FINGER: SUDDEN DEATH 5. Which of these scientists has an element named after him? A.Planck B.Bohr C.Dalton D.Thomson Element 107 Bh Bohrium

101 Copyright © Mintek 2009 THE END!


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