The correct statement about copper: It is cheap as compared to Aluminum It is light as compared to Aluminum Its tensile strength is more as compare to Aluminum Conductivity of Aluminum is more than copper Correct answer: 3. Its tensile strength is more as compare to Aluminum
Total number of individual wires in the 3rd layer of stranded conductor contains: 27 31 37 47 Correct answer: 3. 37
The 2nd layer of stranded conductor has total number of individual wires: 10 14 17 19 Correct answer: 4. 19
The total number of individual wires in 1st layer of stranded conductor is: 3 5 7 9 Correct answer: 3. 7
72/7 ACSR means: 72 strands of steel are there 79 strands of steel are there 72 strands of aluminum are there 79 strands of aluminum strands are there Correct answer: 3. 72 strands of aluminum are there ACSR conductor strand number is indicated using convention Aluminum/Steel. Here Aluminum = 72, while Steel = 7 Aluminum … Read more
Which one of following is incorrect about DC transmission: It requires only two conductors No capacitance problem is there in d.c. transmission It has no corona loss No skin effect is there in DC transmission None of these Correct answer: 3. It has no corona loss
Conductors are suspended from towers so as to: Increase efficiency Reduce losses Increase ground clearance Improve power factor Correct answer: 3. Increase ground clearance
Currently, the highest AC transmission voltage level which is in practice in the majority of world is: 365 kV 500 kV 765 kV 2200 kV Correct answer: 3. 765 kV
Volume of required conductor material and power factor are related as: Volume is directly proportional to the cube of power factor Volume is inversely proportional to the cube of power factor Volume is directly proportional to the square of power factor Volume is inversely proportional to the square of power factor Correct answer: 4. Volume … Read more
Volume of required conductor material is: Directly proportional to the cube of transmission voltage Inversely proportional to the cube of transmission voltage Directly proportional to the square of transmission voltage Inversely proportional to the square of transmission voltage Correct answer: 4. inversely proportional to the square of transmission voltage