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- Find the equation of a perpendicular bisector of a line AB if the coordinates of A and B are(-4,-2) and (6,2) respectively.(Solved)
Find the equation of a perpendicular bisector of a line AB if the coordinates of A and B are (-4,-2) and (6,2) respectively.
Date posted: August 14, 2019.
- Without using a calculator, evaluate,(Solved)
Without using a calculator, evaluate,
Date posted: August 14, 2019.
- A 7.2 V Zener is used in the circuit shown in Fig. 3.63 and the load current is to vary from 12 to 100 mA.(Solved)
A 7.2 V Zener is used in the circuit shown in Fig. 3.63 and the load current is to vary from 12 to 100 mA. Find the value of series resistance R to maintain a voltage of 7.2 V across the load. The input voltage is constant at 12V and the minimum Zener current is 10 mA.
Date posted: August 14, 2019.
- Explain three advantages of natural lighting.(Solved)
Explain three advantages of natural lighting.
Date posted: August 14, 2019.
- For the circuit shown in Fig. 3.62 (i), find the maximum and minimum values of Zener diode current.(Solved)
For the circuit shown in Fig. 3.62 (i), find the maximum and minimum values of Zener diode current.
![cct214820191236.png](/questions/uploads/cct214820191236.png)
Date posted: August 14, 2019.
- In the figure below DA is a diameter of the circle ABCD centre o, radius 10cm. TCS is a tangent to the circle at c,...(Solved)
In the figure below DA is a diameter of the circle ABCD centre o, radius 10cm. TCS is a tangent to the circle at c, AB = BC and angle DAC = 38ΒΊ
a) Find the size of the angle
i) ACS
ii) BCA
b) Calculate the length of;
i) AC
ii) AB
Date posted: August 14, 2019.
- Mention four ways in which facings can be used decoratively on the neckline during garment construction.(Solved)
Mention four ways in which facings can be used decoratively on the neckline during garment construction.
Date posted: August 14, 2019.
- For the circuit shown in Fig. 3.61 (i), find:(Solved)
For the circuit shown in Fig. 3.61 (i), find:
(i) the output voltage
(ii) the voltage drop across series resistance
(iii) the current through Zener diode.
![cct114820191236.png](/questions/uploads/cct114820191236.png)
Date posted: August 14, 2019.
- A frequency distribution of marks obtained by 120 candidates is to be represented in a histogram. The table below shows the grouped marks , frequencies...(Solved)
A frequency distribution of marks obtained by 120 candidates is to be represented in a histogram. The table below shows the grouped marks , frequencies for all the groups and also the area and height of the rectangle for the group 30 β 60 marks.
a) i) Complete the table.
ii) On the grid provided,draw the histogram.
b) i) State the group in which the median mark lies.
ii) A vertical line drawn through the median mark divides the total area of the histogram into two equal parts. Using this information or otherwise, estimate the median mark.
Date posted: August 14, 2019.
- Highlight four qualities of a well-made patch pocket.(Solved)
Highlight four qualities of a well-made patch pocket.
Date posted: August 14, 2019.
- Explain Zener Diode as Voltage Stabilizer(Solved)
Explain Zener Diode as Voltage Stabilizer
Date posted: August 14, 2019.
- Outline the seven steps to follow when threading a sewing machine.(Solved)
Outline the seven steps to follow when threading a sewing machine.
Date posted: August 14, 2019.
- If x2 + y2 = 29 and x + y = 3
a) Without solving for x and y determine the values of
i) x2 + 2xy...(Solved)
If x2 + y2 = 29 and x + y = 3
a) Without solving for x and y determine the values of
i) x2 + 2xy + y2
ii) 2 x y
iii) x2 β 2xy + y2
iv) x β y
b) Find the values of x and y.
Date posted: August 14, 2019.
- In the figure below, O is the centre of the circle of radius 3cm and AB is a chord such that its shortest distance from...(Solved)
In the figure below, O is the centre of the circle of radius 3cm and AB is a chord such that its shortest distance from O is 1cm.
Calculate :
a) The length of the chord AB.
b) Angle AOB
c) The area of the minor sector OAB.
d) The area of the shaded segment.
Date posted: August 14, 2019.
- What is a Zener Diode?(Solved)
What is a Zener Diode?
Date posted: August 14, 2019.
- Define the following terms:(Solved)
Define the following terms:
(i) Forward current
(ii) Peak inverse voltage
(iii) Reverse current or leakage current
Date posted: August 14, 2019.
- Mr. Barmuriat a farmer in Ainamoi division , Kericho District has a triangular field, ABC. The ratio of the length AB: AC = 6:7. If...(Solved)
Mr. Barmuriat a farmer in Ainamoi division , Kericho District has a triangular field, ABC. The ratio of the length AB: AC = 6:7. If BC = 40m and the perimeter of the field is 118m,.
a) Calculate the length AB and the area of the field.
b) A water tap is installed inside the field such that the tap is equidistant from each of the vertices of the plot. Calculate the distance of the tap from vertex A.
c) Find the size of the acute angles between the edges AB and BC.
Date posted: August 14, 2019.
- Outline eight points to bear in mind when planning meals.(Solved)
Outline eight points to bear in mind when planning meals.
Date posted: August 14, 2019.
- Determine the state of diode for the circuit shown in Fig. 3.18 (i) and find ID and VD. Assume simplified model for the diode.(Solved)
Determine the state of diode for the circuit shown in Fig. 3.18 (i) and find ID and VD. Assume simplified model for the diode.
![ex314820191201.png](/questions/uploads/ex314820191201.png)
Date posted: August 14, 2019.
- Two types of tea in Kericho grade A and grade B are mixed. Grade A costs sh. 85 per kg, and grade B costs sh....(Solved)
Two types of tea in Kericho grade A and grade B are mixed. Grade A costs sh. 85 per kg, and grade B costs sh. 70 per kg.
a) If the tea are mixed in the ratio 2:1, find the cost 2kg of the mixture.
b) The tea is to be sold in 2kg boxes at a 30% profit. Find the selling price of the tea.
c) At the end of the week the price of a 2kg box is reduced to sh. 125. Find the percentage reduction in the price .
d) Origianally 200kg of grade A and 100kg of grade B were bought 240kg of the mixture was sold at the price of part b, and the rest was sold at the reduced price of part C. Find the overall percentage profit.
Date posted: August 14, 2019.
- Find the positive number m for which(Solved)
Find the positive number m for which
![pic14820191208.png](/questions/uploads/pic14820191208.png)
Date posted: August 14, 2019.
- State the meaning of the following terms as used in meal planning and management(Solved)
State the meaning of the following terms as used in meal planning and management
(i) Dessert
(ii) Beverage
(iii) Cruets
Date posted: August 14, 2019.
- Construct a net of the triangular prism shown, where the cross section is an equilateral triangle.Hence calculate the surface area of the prism.(Solved)
Construct a net of the triangular prism shown, where the cross section is an equilateral triangle.Hence calculate the surface area of the prism.
![pic14820191205.png](/questions/uploads/pic14820191205.png)
Date posted: August 14, 2019.
- Determine if the diode (ideal) in Fig. 3.17 (i) is forward biased or reverse biased.(Solved)
Determine if the diode (ideal) in Fig. 3.17 (i) is forward biased or reverse biased.
![ex214820191201.png](/questions/uploads/ex214820191201.png)
Date posted: August 14, 2019.
- Determine the currents I1, I2 and I3 for the network shown in Fig. 3.16(Solved)
Determine the currents I1, I2 and I3 for the network shown in Fig. 3.16(i). Use simplified model for the diodes.
![ex114820191201.png](/questions/uploads/ex114820191201.png)
Date posted: August 14, 2019.
- A Kenyan businessman bought goods from Japan worth 2,950,000 Japanese Yen.(Solved)
A Kenyan businessman bought goods from Japan worth 2,950,000 Japanese Yen.On arrival in Kenya, custom duty of 20% was changed on the value of the goods. If the exchange rates were as follows:-
1 us dollar = 118 Japanese yen
1 us dollar = 76 Kenya shillings
Calculate the duty paid in Kenya shillings.
Date posted: August 14, 2019.
- Outline three negative effects of using charcoal as a source of fuel in the home.(Solved)
Outline three negative effects of using charcoal as a source of fuel in the home.
Date posted: August 14, 2019.
- Determine current through each diode in the circuit shown in Fig. 3.15(Solved)
Determine current through each diode in the circuit shown in Fig. 3.15 (i). Use simplified model. Assume diodes to be similar.
![diode91482019922.png](/questions/uploads/diode91482019922.png)
Date posted: August 14, 2019.
- State two advantages of traditional houses.(Solved)
State two advantages of traditional houses.
Date posted: August 14, 2019.
- List four items found in a first Aid kit that can be used to manage a fracture.(Solved)
List four items found in a first Aid kit that can be used to manage a fracture.
Date posted: August 14, 2019.