Govt Exams Mock Test FREE | Online Quiz Competition

Q1. A 183-bus power system has 150 PQ buses and 32 PV buses. In the general case, to obtain the load flow solution using Newton-Raphson method in polar coordinates, the minimum number of simultaneous equations to be solved is _____________.

326

332

350

340

Q2. A Transmission line has a length of \(400 \: km\) long. The sending end voltage is \(V_s = 1 \: pu\), find the receiving end voltage \(V_r\) at no load.

1.17 pu

1.08 pu

1.23 pu

1.3 pu

Q3. An industrial consumer has a connected load of 10 machines, each having a rating of 10 kW. The maximum demand is 80 kW. On an average each machine works for 8 hrs a day for 300 working days in a year. The tariff is Rs. 10000 + Rs. 800 per kW of maximum demand + Rs. 1.15 per kWh of energy consumed. The annual bill of the consumer will be:

Rs. 3,50,000

Rs. 4,00,000

Rs. 2,50, 000

Rs. 3,45,000

Q4. The induced voltages on the transmission lines due to electrostatic and electromagnetic induction is reduced by

Ferranti effect

Corona effect

Bundling of conductors

Transposition of conductors.

Q5. Q-axis current injection causes sinusoidal component to exist in ________________during islanding condition

D-axis voltage

Q-axis voltage

Frequency

Voltage

Q6. Which lightning stroke is most dangerous?

direct stroke on line conductor

direct stroke on tower top

indirect stroke on conductor

direct stroke on ground wire

Q7. Cables are generally not used for high voltage A.C. transmission because

They have large series inductance

They have large shunt conductance

They have large shunt capacitance

They have large series resistance

Q8. According to IS802:1995, the small angle towers with tension string can be used for line deviation from

\(0^\circ to\:15^\circ\)

\(30^\circ to\:60^\circ\)

\(15^\circ to\:30^\circ\)

\(60^\circ to\:90^\circ\)

Q9. What can enhance the accuracy of load forecasts using the load increase factor method?

Using exponential growth models exclusively

Considering individual consumption sectors separately

Applying a universal growth rate to all sectors

Ignoring past load trends

Q10. For the circuit breakers, recovery voltage across the breaker poles depends on

Circuit conditions

Armature reaction

Power factor

All of the above

Quiz

Year 2024

October
Week # 2 Quiz 5

Q1. A 183-bus power system has 150 PQ buses and 32 PV buses. In the general case, to obtain the load flow solution using Newton-Raphson method in polar coordinates, the minimum number of simultaneous equations to be solved is _____________.

Q2. A Transmission line has a length of \(400 \: km\) long. The sending end voltage is \(V_s = 1 \: pu\), find the receiving end voltage \(V_r\) at no load.

Q4. The induced voltages on the transmission lines due to electrostatic and electromagnetic induction is reduced by

Q5. Q-axis current injection causes sinusoidal component to exist in ________________during islanding condition

Q6. Which lightning stroke is most dangerous?

Q7. Cables are generally not used for high voltage A.C. transmission because

Q8. According to IS802:1995, the small angle towers with tension string can be used for line deviation from

Q9. What can enhance the accuracy of load forecasts using the load increase factor method?

Q10. For the circuit breakers, recovery voltage across the breaker poles depends on

Quiz

Year 2024

September Week # 4 Expire on 21 Oct 2024

October Week # 1 Expire on 31 Oct 2024

October Week # 2 Expire on 07 Nov 2024

October Week # 3 Expire on 14 Nov 2024

October Week # 2 Quiz 5

Q1. A 183-bus power system has 150 PQ buses and 32 PV buses. In the general case, to obtain the load flow solution using Newton-Raphson method in polar coordinates, the minimum number of simultaneous equations to be solved is _____________.

Q2. A Transmission line has a length of \(400 \: km\) long. The sending end voltage is \(V_s = 1 \: pu\), find the receiving end voltage \(V_r\) at no load.

Q4. The induced voltages on the transmission lines due to electrostatic and electromagnetic induction is reduced by

Q5. Q-axis current injection causes sinusoidal component to exist in ________________during islanding condition

Q6. Which lightning stroke is most dangerous?

Q7. Cables are generally not used for high voltage A.C. transmission because

Q8. According to IS802:1995, the small angle towers with tension string can be used for line deviation from

Q9. What can enhance the accuracy of load forecasts using the load increase factor method?

Q10. For the circuit breakers, recovery voltage across the breaker poles depends on

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October
Week # 2 Quiz 5