Assessment 4- Unit 16 Verify compliance of low voltage systems
  إظهار بيانات الطالب   إظهار التعليمات   تغيير اتجاه الصفحة

رقم السؤال: 1           درجة السؤال: 1
 Voltage and cross-sectional area
 Current and resistance
 Resistance and cross-sectional area
 Current and voltage
رقم السؤال: 2           درجة السؤال: 1
 The cross-sectional area of the flexible cord conductors
 The colors of the flexible cord conductors
 The type of supply, a.c. or d.c c.
 The number of cores in the flexible cord
رقم السؤال: 3           درجة السؤال: 1
 Taking the sum of all the protective devices from any CCU
 Taking into account that not all loads will be switched on at the same time
 Taking into account that all loads doubtless will be engaged at the same time
 Ensuring that an economical and reliable design preference is utilized
رقم السؤال: 4           درجة السؤال: 1
 Cable size
 Grouping factor
 Design current
 Overload current
رقم السؤال: 5           درجة السؤال: 1
 During the erection period
 During testing upon completion
 After testing upon completion
 Before testing upon completion
رقم السؤال: 6           درجة السؤال: 1
 Maximum demand of the installation
 The rating of the circuit protective device
 The CSA of the tails
 The The prospective short-circuit current at the origin of the installation of the tails
رقم السؤال: 7           درجة السؤال: 1
 2.5V
 5.4V
 6V
 16.6V
رقم السؤال: 8           درجة السؤال: 1
 Metal conduit
 Trunking and tray installation
 PVC cables
 PVC/SWA cables
رقم السؤال: 9           درجة السؤال: 1
 every fuse and single pole device is connected in the line conductor only
 there is sufficiently low resistance to operate the protective device within its limits
 there is sufficient circuit protection
 there is no breakdown of the conductor insulation
رقم السؤال: 10           درجة السؤال: 1
 Check that the electrical appliance will operate properly
 Verify that the insulation of current carrying components are capable of withstanding the normal supply voltage
 Verify that the resistance of the protective earthing conductor does not exceed 1MΩ
 Verify that the insulation of current carrying components is capable of withstanding the maximum load current


   



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