Organisation : Public Health Engineering Department
Exam : Direct Recruitment For Junior Engineer – Civil / Mechanical / Electrical (Degree / Diploma)
Degree : Electrical
Year : 2014
Document Type : Question Paper
Website : jenexamphed.rajasthan.gov.in
Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/Recruitment/7171-QP_Electrical%20Degree.pdf
Junior Engineer Electrical Degree Question Paper :
Question Booklet :
Subject: Electrical Degree
Important Instructions :
1. Number of pages in the booklet : 12
Related : Public Health Engineering Department Junior Engineer Mechanical Degree Question Paper : www.pdfquestion.in/7169.html
2. This Booklet is divided into Two Parts namely Part A and Part B. Part A contains 40 questions and Part B contains 60 questions.
3. Questions in Part A are in both English and Hindi language. Questions in part B are in English only.
4. All questions carry equal marks.
5. Please use Black ink Ball Point Pen to fill OMR answer sheet.
6. Answer all the questions in OMR sheet.
7. Each question has four alternative responses marked serially as A,B,C, and D. You have to darken only one circle in the supplied OMR sheet for each question.
8. Negative marking will be done 1/3 part of the mark(s) of question in case of each wrong/multiple reply.
9. If more than one options for an answer are marked correct then it will be treated as wrong answer.
10. Rough work should be done only in the space provided at the end of the Question Booklet
11. Use of mobile phone or any type of electronic device including calculator is strictly prohibited in the examination hall. Any candidate found with such objectionable material/device will be strictly dealt as per rules.
12. Please hand over both Answer Sheet and the Question Booklet to the Invigilator before leaving the Examination Hall.
13. In case of any variation in English or Hindi version, English version should be treated as correct.
Part A :
Q.41 When transformer is subjected to short circuit, the adjoining turns of the same winding experience
A. An attractive force
B. A repulsive force
C. No force
D. Depends on operating point of the B-H curve
Q.42 The function of oil in a transformer is
A. To provide lubrication
B. To provide protection against lightning
C. To provide protection against short circuit
D. To provide insulation and cooling
Q.43 In an induction motor, if the air-gap is increased
A. Speed will reduce
B. Efficiency will improve
C. Power factor will be lowered
D. Breakdown torque will reduce
Q.44 In a self excited induction generator, to keep the frequency of generated voltage constant with the increase in load, the speed of the induction machine should be
A. Increased
B. Decreased
C. Maintained less than the rated synchronous speed
D. Maintained more than the rated synchronous speed
Q.45 Which type of motor is most suitable for a computer printer drive
A. Reluctance motor
B. Hysteresis motor
C. Shaded pole motor
D. Stepper motor
Q.46 The stator and rotor pole number may be different in a
A. pole changing induction motor
B. reluctance motor
C. repulsion motor
D. synchronous motor
Q.47 In order to have a lower cost of power generation
A. The load factor and diversity factor should be low
B. The load factor and diversity factor should be high.
C. The load factor should be high and diversity factor should be low.
D. The load factor should be low and diversity factor should be high.
Q.48 The surge impedance loading of a 220 kV, over head line is approximately
A. 121MW
B. 121 kW
C. 12.1 kW
D. 121,000MW
Q.49 Hollow conductors are used in transmission lines to
A. Reduce weight of conductor
B. Improve power transfer capability
C. Reduce corona
D. Increase stability
Q.50 Shunt reactors are needed
A. To boost receiving end voltage under light loads
B. To boost receiving end voltage under heavy loads
C. To bring down receiving end voltage at light loads
D. To bring down receiving end voltage under heavy loads
Q.53 A turbine generator set has a regulation constant 5% on the generator rating of100MVA, 50Hz.The generator frequency decreases by 0.02 Hz. The increase in turbine output power for steady state operation is
A. 0.8 MW
B. 8MW
C. 3.6 MW
D. 0.2 MW
Q.54 For an arcing fault where the arc resistance is significant an impedance or admittance relay will
A. Over reach
B. Under reach
C. The reach of relay is unaffected
D. The reach will depend on the arcing resistance and may under reach or over reach.
Q.56 In HVDC transmission system, rectifier firing angle alpha is kept near
A. 0 degree
B. 15 degree
C. 30 degree
D. 90 degree
Q.57 The function of the starter in DC machines is:
A. To avoid the excessive currents at the starting
B. To control the speed
C. To avoid armature reaction
D. To avoid excessive heating