Question 1
Which of the following statements about resistors connected in parallel is correct? The total resistance is
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Question 2
The pigment in the skin responsible for skin colouration is
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Question 3
Which of the following alloys contain copper? I. Brass II. Bronze III. Duralumin
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Question 4
A body has a weight of 720 N. Calculate the mass of the body [g = 10 ms-2]
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Question 5
The burdizzo is purposely used for
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Question 6
An electrical component that is used to vary electric current is the
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Question 7
An example of fungal disease of stored grains is
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Question 8
Aluminium is used for making high tension cables because it is I. light. II. highly conducting. III. brittle.
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Question 9
Which of the following forces is mainly reduced when a lubricant is applied to the moving parts of an engine?
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Question 10
An instrument that could be used to measure the relative density of an acid is
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Question 11
The potential difference across the terminals of a resistor is 24 V. Determine the current which will flow through the resistor with resistance 15 Ω.
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Question 12
The component of air used for welding is
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Question 13
In a step-down transformer,
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Question 14
One function of water in the germination of seeds is that it
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Question 15
An important function of organic matter in the soil is to
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Question 16
A car of mass 1600 kg moves with a velocity of 80 ms-1. Determine the momentum of the car.
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Question 17
The gas in the stratosphere that absorbs ultraviolet rays to minimize the heat reaching the earth's surface is
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Question 18
A mating ratio of 1 : 50 in goat breeding means that 800 females could be serviced by
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Question 19
Which of the following substances contribute(s) to the depletion of the ozone layer? I. Carbon (II) oxide II. Chlorofluorocarbon III. Carbon (IV) oxide
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Question 20
The gas used in the welding torch belongs to the family of
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Question 21
Which of the following metals is a liquid at room temperature?
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Question 22
The essential parts of a flower are the
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Question 23
The blood vessel that carries oxygenated blood to the heart is
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Question 24
Addition of an atom of a pentavalent element to a tetravalent element I. is known as doping. II. forms an n-type semiconductor. III. forms a p-type semiconductor.
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Question 25
Which of the following structures in plants prevents water loss?
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Question 26
The fraction of petroleum distillation used as fuel for heavy duty engine is
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Question 27
Members of the same species living in the same place at the same time make up the
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Question 28
Thinning out means
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Question 29
Terracing checks soil erosion by
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Question 30
The vacuum flask minimizes heat loss by I. having a vacuum between the two surfaces. II. polishing the two surfaces. III. using a cork stopper. Which of the statements above are correct?
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Question 31
The radioactive radiation with the least penetration power is
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Question 32
Lime juice tastes sour because it contains
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Question 33
Good quality seeds should be
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Question 34
Which of the following statements about small scale industry is correct? It
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Question 35
The most important climate factor affecting crop production in West Africa is
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Question 36
Fertilization in flowering plants is known as double because
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Question 37
Which of the following scientists is associated with the study of inheritance?
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Question 38
During thunderstorm, lightning is seen before the sound is heard although both occur at the same time. This is because
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Question 39
In the periodic table, all the elements within the same group have the same
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Question 40
The term used to describe all chemical reactions occurring inside an organism is
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Question 41
The gas produced when dilute hydrochloric acid reacts with trioxocarbonate (IV) salt is
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Question 42
The following substance are air pollutants except
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Question 43
A disadvantage of practicing mixed cropping is the
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Question 44
DNA testing is used to determine
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Question 45
One of the advantages of the free range system of poultry is that
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Question 46
The largest excretory organ of the human body is the
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Question 47
A flower with both stamens and carpels is said to be
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Question 48
The material used for propagating cassava is the
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Question 49
An example of a corm is
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Question 50
An electric appliance is rated 60 W. This means the appliance
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