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Define latent heat of vaporization.
Date posted:
November 16, 2022
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The graph provided is of force (y-axis) against extension.
(i) From the graph determine the work done in stretching spring by 3cm
(ii) Use the graph to determine the spring constant. Give your answer in SI units
(iii) State three factors that affect the spring constant
Date posted:
November 16, 2022
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The figure below shows a cross-section of a handle of a screw jack 70 cm long. The pitch of the screw is 0.8 cm
Given that the efficiency is 65%, calculate:
i) the velocity ratio of the system
ii) the mechanical advantage of the screw jack.
iii.) Sketch a graph of efficiency against Load
iv.) Draw a single moving pulley with a velocity ratio of 2.
Date posted:
November 16, 2022
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A force of 7.5N stretches a certain spring by 5 cm. Calculate the work done in stretching this spring by 8.0 cm.
Date posted:
November 16, 2022
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Explain why a lift pump is unable to raise water from a borehole where the level of water is 20m below the ground level.
Date posted:
November 16, 2022
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Using the idea of particles, explain why the pressure inside the tyre is increased when it is pumped up.
Date posted:
November 16, 2022
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The figure below shows three identical springs which obey Hooke’s law.
Determine the length Xcm.
Date posted:
November 16, 2022
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The figure below shows air flowing through a pipe of non-uniform cross-sectional area. Two pipes A and B are dipped into liquids as shown.
a) Indicate the levels of the liquids in Pipe A and pipe B.
b) Explain your answer in 7 (a) above.
Date posted:
November 16, 2022
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The figure below shows a clinical thermometer which is not graduated.
a) Name the parts indicate with letters: A and B
b) Mark the appropriate scale range in degrees Celsius
Date posted:
November 16, 2022
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The figure below shows a funnel dipped into a liquid soap solution.
Explain what happens to the soap bubble when the funnel is removed.
Date posted:
November 16, 2022
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What is surface tension?
Date posted:
November 16, 2022
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A trolley of mass 1.5kg moving with a velocity of 1.2ms-1 collides inelastically with a second trolley of mass 0.5kg moving in the opposite direction with a velocity of 0.2ms -1 .
(a) What is an inelastic collision?
(b) Determine the velocity of the trolleys after collision.
Date posted:
November 16, 2022
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State five signs of parturition in cattle.
Date posted:
November 16, 2022
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Describe the feeding practices in artificial rearing of a dairy calf.
Date posted:
November 16, 2022
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State two advantages of artificial incubation.
Date posted:
November 16, 2022
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State and explain condition necessary for artificial incubation.
Date posted:
November 16, 2022
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The diagram below represents the structure of a quarter of the cow’s udder. Study it and answer the questions that follow.
(a)Name the parts labeled B and C.
(b)Name the process that takes place in the part labeled A and the hormone that controls it.
(c) State the function of the part labeled D.
Date posted:
November 16, 2022
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State the function of the following ingredients in the preparation of artificial colostrum for calves.
(a) Castor oil
(b) Warm water
(c) Eggs
(d) Cod liver oil
Date posted:
November 16, 2022
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State four control measures of round worm (Ascaris lumbricoides) infestation in livestock.
Date posted:
November 16, 2022
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State two ways by which an animal acquire water in its body.
Date posted:
November 16, 2022
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What is quarantine as a preventive measure of livestock diseases?
Date posted:
November 16, 2022
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Distinguish between each of the following terms as used in livestock rearing practices.
(a)Steaming up and flushing.
(b)Kindling and farrowing.
Date posted:
November 16, 2022
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Name four breeds of sheep reared in Kenya.
Date posted:
November 16, 2022
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Explain any two harmful effects of branding as a method of identification in cattle.
Date posted:
November 16, 2022
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Give four reasons why identification of livestock is an important rearing practice in a farm.
Date posted:
November 16, 2022
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State four maintenance practices carried out on workshop tools and equipment.
Date posted:
November 16, 2022
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Explain five ways in which soil fertility can be maintained.
Date posted:
November 16, 2022
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Describe the importance of any FIVE nursery management practices in crop production.
Date posted:
November 16, 2022
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Describe the importance of top dressing in pasture establishment.
Date posted:
November 16, 2022
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Describe various safety precautions observed when using herbicides.
Date posted:
November 16, 2022