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<=KNEC Craft Certificate in Electrical and Electronics Engineering(Power Option) Module II : Estimating and Tendering Past Paper July 2021
Figure 1 shows two lamps A and B of luminous intensities 250 cd and 400 cd respectively. Determine the illumination at point Z.
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Questions List:
1. State two : i)main reasons for providing emergency supplies in electrical installations (ii) Types of emergency lighting scheme in a (i).
2. Draw a labeled schematic diagram of high pressure mercury vapor lamp
3. Explain ‘maintenance factor’ as used in illumination
4. Figure 1 shows two lamps A and B of luminous intensities 250 cd and 400 cd respectively. Determine the illumination at point Z.
5. Explain each of the following as used in electrical design project: (i) Taking off materials from drawing; (ii) Take off sheets.
6. List four causes of labour turnover
7. A factory employs 40 casual workers for 30 days. The details of the expenditure are given: Material cost =Ksh 30,000 Rate of wage of each worker = Ksh 10 per hour Duration of work = 8 hours/day No. of holidays =6 days Determine the labour cost.
8. State three types of tenders
1. State two : i)main reasons for providing emergency supplies in electrical installations (ii) Types of emergency lighting scheme in a (i).
2. Draw a labeled schematic diagram of high pressure mercury vapor lamp
3. Explain ‘maintenance factor’ as used in illumination
4. Figure 1 shows two lamps A and B of luminous intensities 250 cd and 400 cd respectively. Determine the illumination at point Z.
5. Explain each of the following as used in electrical design project: (i) Taking off materials from drawing; (ii) Take off sheets.
6. List four causes of labour turnover
7. A factory employs 40 casual workers for 30 days. The details of the expenditure are given: Material cost =Ksh 30,000 Rate of wage of each worker = Ksh 10 per hour Duration of work = 8 hours/day No. of holidays =6 days Determine the labour cost.
8. State three types of tenders
