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The correct answer is D. Oiling.
Oiling reduces ware out of tools by reducing friction between parts.
sharon kalunda answered the question on July 29, 2019 at 12:36
- Which one of the following mixtures can be separated by either picking or sieving? (Solved)
Which one of the following mixtures can be separated by either picking or sieving?
A. Maize and beans.
B. Rice and sorghum.
C. Maize and millet.
D. Green grams and peas.
Date posted: July 29, 2019. Answers (1)
- In which one of the following activities is renewable energy in use? (Solved)
In which one of the following activities is renewable energy in use?
A. Driving a petrol powered car.
B. Using a windmill to grind maize.
C. Cooking on energy saving charcoal stove.
D. Using coal to generate electricity.
Date posted: July 29, 2019. Answers (1)
- During a thunderstorm, pupils were observed
(i) Sheltering under the verandah
(ii) Wearing red jackets in a classroom
(iii) Playing on the football pitch
(iv)...(Solved)
During a thunderstorm, pupils were observed
(i) Sheltering under the verandah
(ii) Wearing red jackets in a classroom
(iii) Playing on the football pitch
(iv) Lying on the ground in the classroom
In which pair of observations are the pupils more likely to be struck by lightning?
A. (i) and (iii)
B. (i) and (iv)
C. (ii) and (iii)
D. (ii) and (iv)
Date posted: July 29, 2019. Answers (1)
- Which one of the following is the least effective preventive measure against the spread of typhoid?(Solved)
Which one of the following is the least effective preventive measure against the spread of typhoid?
A. Washing vegetables and fruit.
B. Washing hands after visiting a toilet.
C. Proper use of latrines and toilets.
D. Draining stagnant water.
Date posted: July 29, 2019. Answers (1)
- The following are misconceptions about HIV and AIDS EXCEPT (Solved)
The following are misconceptions about HIV and AIDS EXCEPT
A. HIV and AIDS is a curse
B. sex with a young girl cures HIV and AIDS
C. HIV and AIDS has no cure
D. all thin people have AIDS.
Date posted: July 29, 2019. Answers (1)
- Which one of the following is an example of a harmful animal? (Solved)
Which one of the following is an example of a harmful animal?
A. Turkey.
B. Donkey.
C. Termite.
D. Dog.
Date posted: July 29, 2019. Answers (1)
- The following are some characteristics of plants:
(i) thin cuticle
(ii) silvery hairs
(iii) flexible stems
(iv) more stomata on lower leaf surface
(v) air sacs...(Solved)
The following are some characteristics of plants:
(i) thin cuticle
(ii) silvery hairs
(iii) flexible stems
(iv) more stomata on lower leaf surface
(v) air sacs
Which pair of characteristics is for plants adapted to wet areas?
A. (ii) and (iv)
B. (i) and (v)
C. (iii) and (iv)
D. (i) and (ii)
Date posted: July 29, 2019. Answers (1)
- Which one of the following statements describes hard water? (Solved)
Which one of the following statements describes hard water?
A. Contains less mineral salts.
B. Lathers easily.
C. Boiled water.
D. Discolors clothes.
Date posted: July 29, 2019. Answers (1)
- An example of a lever in which the load is between the effort and fulcrum is (Solved)
An example of a lever in which the load is between the effort and fulcrum is
A. wheelbarrow
B. spade
C. claw hammer
D. crowbar.
Date posted: July 29, 2019. Answers (1)
- Which one of the following uses of Water is not practiced on the farm?(Solved)
Which one of the following uses of Water is not practiced on the farm?
A. Mixing chemicals.
B. Washing toilet.
C. Cleaning implements.
D. Irrigation.
Date posted: July 29, 2019. Answers (1)
- The following materials can be used to construct a certain weather instrument:
(i) small plastic bottle
(ii) large plastic bottle
(iii) manila paper
(iv) cello...(Solved)
The following materials can be used to construct a certain weather instrument:
(i) small plastic bottle
(ii) large plastic bottle
(iii) manila paper
(iv) cello tape.
The weather instrument likely to be constructed is
A. air thermometer
B. wind vane
C. rain gauge
D. liquid thermometer.
Date posted: July 29, 2019. Answers (1)
- Which one of the following is the most commonly abused drug in Kenya? (Solved)
Which one of the following is the most commonly abused drug in Kenya?
A. Khat.
B. Glue.
C. Tobacco.
D. Alcohol.
Date posted: July 29, 2019. Answers (1)
- The diagram below shows parts of the human heart.
Blood from the legs enters the heart through the blood vessel labelled(Solved)
The diagram below shows parts of the human heart.
Blood from the legs enters the heart through the blood vessel labelled
A. V
B. W
C. X
D. Y
Date posted: July 29, 2019. Answers (1)
- The surrounding of an organism is described as its (Solved)
The surrounding of an organism is described as its
A. environment
B. home
C. shelter
D. habitat.
Date posted: July 29, 2019. Answers (1)
- The most effective control measure against HIV transmission from mother to child is (Solved)
The most effective control measure against HIV transmission from mother to child is
A. public awareness on HIV/AIDS
B. voluntary counselling and testing
C. mass education
D. campaign through various media.
Date posted: July 29, 2019. Answers (1)
- In a certain activity, a sample of soil was mixed with water in a transparent container, shaken and allowed to settle. This was to investigate...(Solved)
In a certain activity, a sample of soil was mixed with water in a transparent container, shaken and allowed to settle. This was to investigate soil
A. drainage
B. fertility
C. composition
D. capillarity.
Date posted: July 29, 2019. Answers (1)
- Which one of the following methods will mainly conserve soil and not water? (Solved)
Which one of the following methods will mainly conserve soil and not water?
A. Mulching.
B. Terracing.
C. Cover crops.
D. Gabions.
Date posted: July 29, 2019. Answers (1)
- Which one of the following livestock parasite control measures can be applied for both ticks and tapeworms?(Solved)
Which one of the following livestock parasite control measures can be applied for both ticks and tapeworms?
A. Rotational grazing.
B. Dipping.
C. Deworming.
D. Spraying.
Date posted: July 29, 2019. Answers (1)
- Which one of the following physical changes observed in boys and girls during adolescence is not correctly matched?(Solved)
Which one of the following physical changes observed in boys and girls during adolescence is not correctly matched?
Boys---------------Girls
A. Voice breaks------- Pubic hair grows
B. Wet dreams ---------Hips broaden
C. Pimples on face------Chest broadens
D. Pubic hair grows----- Pimples on face
Date posted: July 29, 2019. Answers (1)
- The picture below shows parts of a flower. The parts labeled P, Q, R and S are(Solved)
The picture below shows parts of a flower.
The parts labeled P, Q, R and S are
P- Q- R -S
A. Anther -Stigma -Sepal- Ovary
B. Style -Filament -Petal -Ovule
C. Stigma -Anther -Petal -Ovary
D. Filament -Style -Sepal -Ovule
Date posted: July 29, 2019. Answers (1)