NEB Class 12 TECHNICAL Switch Gear and Protection Question Paper 2082 (Set D) Nepal
This is the official NEB Class 12 (TECHNICAL stream) Switch Gear and Protection (स्विच गियर र सुरक्षा) question paper for 2082 Set D, as set in the regular annual examination. It carries 50 full marks and a time allowance of 120 minutes, across 16 questions. On Kekkei you can attempt this Switch Gear and Protection past paper online with a timer, get instant AI feedback and step-by-step solutions, and track the topics where you lose marks — completely free. Whether you are revising for your NEB Class 12 Switch Gear and Protection exam or solving previous years' question papers, this 2082 paper is a great way to practise under real exam conditions.
Group 'A' - Multiple Choice Questions
Rewrite the correct option of each question in your answer sheet.
The earth fault involves
Phase and earth
B) Phase and earth
The arcing contacts in a circuit breaker are made of
Copper tungsten alloy
A) Copper tungsten alloy
A thermal trip in MCB is used for protection against
Overload
C) Overload
The single unit of vacuum circuit breaker can be used for voltage up to
33KV
B) 33KV (Note: As per options provided, 33KV is listed)
Drop out fuse is generally used for
What is the purpose of secondary winding in current transformer?
to step down current
C) to step down current
A potential transformer (PT) is connected in
parallel
A) parallel
The fault clearing time of a circuit breaker is usually
Few cycles of supply voltage
D) Few cycles of supply voltage
Faulty condition in a power system is firstly sensed by
Relay
B) Relay
Group 'B' - Short Answer Questions
Attempt all questions.
Define fuse and fusing current. Write four advantages and two disadvantages of fuse.
Requires descriptive answer.
Define switch gear. Explain construction and working principle of a contractor.
Requires descriptive answer.
Explain the construction and working principle of potential transformer.
Requires descriptive answer.
What are the errors that occur in current transformer (CT)? Explain. Also write the error reducing techniques in CT.
Requires descriptive answer.
Define relay. Mention the types of electromagnetic relay and explain any one of them in detail.
Requires descriptive answer.
Group 'C' - Long Answer Questions
Attempt all questions.
Mention few duties of circuit breaker and explain the working principle of oil circuit breaker (OCB) along with its construction details.
Requires descriptive answer.
List out the different types of faults in alternator. Explain the differential protection scheme for a generator.
Requires descriptive answer.
Frequently asked questions
- Where can I find the NEB Class 12 Switch Gear and Protection question paper 2082?
- The full NEB Class 12 Switch Gear and Protection 2082 (regular) question paper is available free on Kekkei. You can read every question online and attempt the paper under timed exam conditions.
- Does the Switch Gear and Protection 2082 paper come with solutions?
- Yes. Every question on this Switch Gear and Protection past paper includes a step-by-step solution, plus instant AI feedback when you attempt it on Kekkei.
- How many marks is the NEB Class 12 Switch Gear and Protection 2082 paper?
- The NEB Class 12 Switch Gear and Protection 2082 paper carries 50 full marks and is meant to be completed in 120 minutes, across 16 questions.
- Is practising this Switch Gear and Protection past paper free?
- Yes — reading and attempting this Switch Gear and Protection past paper on Kekkei is completely free.