TPSC Engineering Services Electrical Previous Paper | Tripura Engineering Services Electrical Previous Paper
Previous years’ question papers play an important role while you prepare for any competitive exam. Candidates who are preparing for the TPSC Engineering Services exam will surely reap the benefits of practising the TPSC Engineering Services Previous Year Papers.
They will get to know the type of questions asked in the exam, their difficulty level and marks from previous years’ papers of the TPSC Engineering Services exam. Although previous years’ question papers hold a lot of importance for candidates, they are not easily found online.
They go through the internet for hours looking for Tripura PSC Engineering Services Previous Year Question Papers. To save them from this hustle, we have provided the Tripura Public Service Commission Engineering Services Previous Paper in this article.
Candidates can download these PDFs for free and study from them whenever they like without worrying about finding them.
Tripura Engineering Services Electrical Paper 2013 Diploma Level
| Sr.No. | Questions |
| 1 | An electric motor converts
(a) Electrical energy to mechanical energy (b) Mechanical energy to electrical energy (c) Heat energy to mechanical energy (d) None of the above |
| 2 | In an inductive circuit
(a) Current leads voltage (b) Current lags voltage (c) Current is in phase of voltage (d) None of these |
| 3 | In a star connection system
(a) Phase voltage and line voltage are equal (b) Phase voltage is 1.732 time of line voltage (c) Line voltage is 1.732 time of phase voltage (d) None of the above |
| 4 | In lap winding of D.C machine the number of poles are equal to
(a) Two (b) Four (c) Six (d) Number of parallel path |
| 5 | The maximum permissible value of earth resistance in domestic installations as per National Electric Code is
(a) 1 ohm (b) 2 ohm (c) 5 ohm (d) 10 ohm |
| 6 | The dielectric strength of transformer oil used in EHT transformer should withstand
(a) 11 KV for 1 min (b) 15 KV for 1 min (c) 20 KV for 1 min (d) 40 KV for 1 min |
| 7 | Eddy current loss is proportional to
(a) Frequency (b) Square of frequency (c) Square root of frequency (d) None of the above |
| 8 | Copper loss of a transformer can be found out by
(a) Open circuit test (b) Short circuit test (c) Hopkinson test (d) None of the above |
| 9 | There is no physical existence of poles in
(a) Universal motor (b) DC shunt motor (c) Induction motor (d) Synchronous motor |
| 10 | The gas used for are extinction is gas-file circuit breaker is
(a) Carbon dioxide (b) Sulphur dioxide (c) Carbon monoxide (d) Sulphur hexafluoride |
| 11 | When the power factor is improved, current drawal for the same power will be
(a) More (b) Less (c) Same (d) Zero |
| 12 | Moving iron instruments can be used in
(a) A.C circuit only (b) D.C circuit only (c) Both A.C and D.C circuit (d) 50 Hz A.C circuit only |
| 13 | Which one of the power plant has low running cost?
(a) Hydroelectric power plant (b) Thermal power plant (c) Gas thermal power plant (d) Nuclear power plant |
| 14 | Selection of slip-ring induction motor is made as its
(a) Efficiency is more (b) Develops high starting torque (c) Cost is low (d) Power consumption is low |
| 15 | Economic conductor size in transmission line is derived from
(a) Gauss law (b) Kelvin’s law (c) Ampere law (d) Kirchoff’s voltage law |
| 16 | A high rating induction motor starts on ____ connection and runs on ___connected windings.
(a) Delta, delta (b) Star, star (c) Star, Delta (d) Direct on line |
| 17 | The voltage across individual indentical discs in a string of suspension insulators is different due to
(a) Shunt capacitance to ground (b) Series capacitance (c) Leakage current (d) Shunt inductance |
| 18 | Which one of the following statement is CORRECT when P is number of poles?
(a) Electrical degree = P x Mechanical degree/ 2 (b) Electrical degree = P x Mechanical degree (c) Mechanical Degree = P x Electrical degree/ 2 (d) Mechanical Degree = P x Electrical degree |
| 19 | Flux in magnetic circuit is analogous to ____ in electrical circuit
(a) E.M.F (b) Current (c) Resistance (d) Impendence |
| 20 | The electrical gear is essential in large electrical installations but not in small domestic installation
(a) Main switch (b) Distribution box (c) Bus bar (d) Cut-out |
| 21 | The speed of a 2-pole, 50 Hz synchronous motor will be
(a) 3000 rpm (b) 6000 rpm (c) 9000 rpm (d) 12000 rpm |
| 22 | Tap changing in a transformer is made for
(a) Active power control (b) Voltage control (c) Current control (d) Frequency control |
| 23 | Where XL= XC in a LCR series circuit, the circuit is said to be
(a) Partly resistive (b) Inductive (c) Capacitative (d) Resonant |
| 24 | In transmission line design, effect of shunt capacitance is neglected in case of
(a) Long line (b) Medium line (c) Short line (d) Irrespective of length of line |
| 25 | Ring main distribution system is preferred to radial system because
(a) Less expensive (b) High power factor (c) Voltage drop is less (d) All of the above |
| 26 | The insulation strength of EHV system is generally governed by
(a) Lighting over-voltage (b) Switching over-voltage (c) Power frequency over-voltage (d) Power supply through the line |
| 27 | The component related to hydroelectric power plant only is
(a) Turbine (b) Alternator (c) Nozzle (d) Penstoc |
| 28 | An universal motor is
(a) 1-phase induction motor (b) Synchronous motor (c) D.C series motor (d) D.C. shunt motor |
| 29 | Maximum permissible variation of declared supply frequency as per LE rules, 1956 is
(a) ±10% (b) ±5% (c) ±3% (d) ±1% |
| 30 | A turn in a winding consists of
(a) Single conductor (b) Two conductors (c) Four conductors (d) Six conductors |
| 31 | In a pure resistive load
(a) There will be no reactive power (b) Magnitude of active and reactive power is same (c) Active power is greater than reactive power (d) Reactive power is greater than active power |
| 32 | Back emf of a D.C shunt motor is proportional to
(a) Applied voltage (b) Armature current (c) Motor speed (d) Field current |
| 33 | String charts are used to find out
(a) Span length (b) Location of towers (c) Location of insulators (d) Sag and tension |
| 34 | The purpose of capacitor in 1-phase fan is to
(a) Increase the speed (b) Protect fan against faults (c) Produce a phase shift (d) Control the speed |
| 35 | A,B,C,D constants are related to transmission lines as
(a) AD – BC (b) (A/D)+(B/C) = 1 (c) AD – BC = 1 (d) ABCD/2 |
Leave a Reply