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- State two factors that could cause sudden stopping of a tractor engine.(Solved)
State two factors that could cause sudden stopping of a tractor engine.
Date posted: September 13, 2019.
- State one significance of mobile calf pen in calf rearing.(Solved)
State one significance of mobile calf pen in calf rearing.
Date posted: September 13, 2019.
- State four factors that determine the choice of poultry rearing system that a farmer chooses to use.(Solved)
State four factors that determine the choice of poultry rearing system that a farmer chooses to use.
Date posted: September 13, 2019.
- The diagram below was used to prepare gas X.(Solved)
The diagram below was used to prepare gas X.
(a) Identify gas x.
(b) Write an equation for the reaction that took place.
(c) Identify the method of gas collection above.
Date posted: September 13, 2019.
- A volume of 80cm3 of nitrogen gas diffused through an office in 40 seconds. How long will 170cm3 of carbon (IV) oxide take to diffuse...(Solved)
A volume of 80cm3 of nitrogen gas diffused through an office in 40 seconds. How long will 170cm3 of carbon (IV) oxide take to diffuse through the same office? (N = 14, C = 12, O = 16)
Date posted: September 13, 2019.
- Mention four reasons that would make a farmer carry out identification to his herd.(Solved)
Mention four reasons that would make a farmer carry out identification to his herd.
Date posted: September 13, 2019.
- The figure below shows part of a Bunsen burner. Study it and answer the questions that follow.(Solved)
The figure below shows part of a Bunsen burner. Study it and answer the questions that follow.
(a) Name labelled parts B and D.
(b) State the function of the part labelled B.
Date posted: September 13, 2019.
- A pin is placed at the bottom of the beaker of depth 14.5cm. The beaker is then filled with Kerosene. By using another pin on...(Solved)
A pin is placed at the bottom of the beaker of depth 14.5cm. The beaker is then filled with Kerosene. By using another pin on the side of the beaker and observing from the top, the distance of image of the pin in the beaker is found to be 4.5cm from the bottom.Determine the refractive index of kerosene.
Date posted: September 12, 2019.
- The figure below shows two polythene spheres P and Q suspended using nylon thread.(Solved)
The figure below shows two polythene spheres P and Q suspended using nylon thread.
Draw a diagram to show how the two spheres would behave if only P is rubbed with a cloth.
Date posted: September 12, 2019.
- A diverging lens of focal length 10cm produces a virtual image half the size of the object. Find the distance between the object from the...(Solved)
A diverging lens of focal length 10cm produces a virtual image half the size of the object. Find the distance between the object from the lens.
Date posted: September 12, 2019.
- Name three methods a farmer can use when selecting livestock for breeding.(Solved)
Name three methods a farmer can use when selecting livestock for breeding.
Date posted: September 12, 2019.
- Name three reasons that would make a farmer use a Machakos dip instead of a plunge dip to control ticks.(Solved)
Name three reasons that would make a farmer use a Machakos dip instead of a plunge dip to control ticks.
Date posted: September 12, 2019.
- State four factors that determine the amount of food given to an animal.(Solved)
State four factors that determine the amount of food given to an animal.
Date posted: September 12, 2019.
- State three signs of attack by endoparasites a farmer can observe.(Solved)
State three signs of attack by endoparasites a farmer can observe.
Date posted: September 12, 2019.
- State three characteristics of Bacterian type of camel(Solved)
State three characteristics of Bacterian type of camel
Date posted: September 12, 2019.
- State three reasons that would make a farmer opt to rear indigenous cattle breeds instead of exotic cattle breeds.(Solved)
State three reasons that would make a farmer opt to rear indigenous cattle breeds instead of exotic cattle breeds.
Date posted: September 12, 2019.
- State five methods used to control soil and water pollution.(Solved)
State five methods used to control soil and water pollution.
Date posted: September 12, 2019.
- The Following weeds were found growing on a maize farm by a form four student. Study the weeds and answer the questions that follow.(Solved)
The Following weeds were found growing on a maize farm by a form four student. Study the weeds and answer the questions that follow.
i)Name the weeds labeled X, Y and Z above.
ii)b) State one reason that makes each of the following weeds difficult to control.
(i) X
(ii) Z
Date posted: September 12, 2019.
- In an experiment to determine the density of sand using a density bottle, the following measurements were recorded:(Solved)
In an experiment to determine the density of sand using a density bottle, the following measurements were recorded:
Mass of empty density bottle = 43.2g
Mass of density bottle full of water = 66.4g
Mass of density bottle with some sand = 67.5g
Mass of density bottle with the sand filled up with water = 82.3g
Use the above data to determine the;
a) Mass of the water that completely filled the bottle.
b) Volume of water that completely filled with the bottle.
c) Volume of the density bottle;
d) Mass of sand
e) Mass of water that filled the space above the sand.
f) Volume of the sand
g) Density of the sand
Date posted: September 12, 2019.
- The diagram below shows pests that affect crops when in the field. Study the diagrams and answer the questions that follow.(Solved)
The diagram below shows pests that affect crops when in the field. Study the diagrams and answer the questions that follow.
a) Identify the pest J, K and L.
b) State two ways of controlling the pest labeled L above
c) State one crop attacked by the pest labeled J and K above.
Date posted: September 12, 2019.
- A solid weighs 18.5N on the surface of the moon. The force of gravity on the moon is 1.7N/kg. Determine the mass of the solid.(Solved)
A solid weighs 18.5N on the surface of the moon. The force of gravity on the moon is 1.7N/kg. Determine the mass of the solid.
Date posted: September 12, 2019.
- The document below was obtained from one of the books of accounts in kimko’s farm. Study the document and answer the questions that follow.(Solved)
The document below was obtained from one of the books of accounts in kimko’s farm. Study the document and answer the questions that follow.
a) Identify the book from which the above document was obtained
b) State four importance of keeping proper farm account records
Date posted: September 12, 2019.
- Study the diagram below and answer the questions that follow.(Solved)
Study the diagram below and answer the questions that follow.
a) Identify the three harvesting methods shown in the diagrams above.
b) Name four sites for agroforestry trees in the farm.
Date posted: September 12, 2019.
- The distance between an upright image and the object produced by a thin lens is 40cm. The image is 3 times as tall as the...(Solved)
The distance between an upright image and the object produced by a thin lens is 40cm. The image is 3 times as tall as the object.
i) State the type of lens used.
ii) Determine the object distance.
iii) Determine the radius of curvature.
iv) State one application of the lens as used in question (b) above.
Date posted: September 12, 2019.
- State the difference between the following terms.
a) Rogueing
b)Gapping(Solved)
State the difference between the following terms.
a) Rogueing
b)Gapping
Date posted: September 12, 2019.
- List two importance of tissue culture in propagating crops. (Solved)
List two importance of tissue culture in propagating crops.
Date posted: September 12, 2019.
- List three importance of phosphorus in crop growth.(Solved)
List three importance of phosphorus in crop growth.
Date posted: September 12, 2019.
- What is meant by a step-up transformer?(Solved)
What is meant by a step-up transformer?
Date posted: September 12, 2019.
- Name the function of each of the following chemicals in water treatment.
a) Alum
...(Solved)
Name the function of each of the following chemicals in water treatment.
a) Alum
b) Soda ash
Date posted: September 12, 2019.
- Name two ways in which predators affect agricultural production(Solved)
Name two ways in which predators affect agricultural production
Date posted: September 12, 2019.