Title Assistant Engineer Executive Trainee Electrical380b60af-69fd-4510-a438-548350c66ca3.pdf ✅

Question Paper with Final (Revised) Answer Key for the Post of Assistant Engineer ( Executive Trainee- Electrical) held on 17- 07- 2019 Itemcode : AG1001 Q1: Choose the correct statement. Capacitor type VTs are: A Highly reliable for high speed relaying schemes. B Not have tendency to introduce harmonics in the output voltage. C Having an inferior transient performance as compared to electromagnetic type VTs. D Used for voltages up to 66kV. Correct Ans: C Itemcode : AG1002 Q2: A surge originates in the overhead line of higher surge impedance and enters into the cable of lower surge impedance. Which of the following statement is correct? A Both the transmitted voltage and current in the cable increase. B Transmitted voltage is much reduced and transmitted current is increased in the cable. C Transmitted voltage increases and transmitted current is reduced in the cable. D There is no change in transmitted voltage and current in the cable. Correct Ans: B Itemcode : AG1003 Q3: An oil circuit breaker is rated at 1450 amps, 2000MVA, 33kV, 2 secs, 3-phase. The short time rating of breaker is : A 34.99 kA for 2 secs. B 106.46 kA for 2 secs. C 82.48 kA for 2 secs. D 57.23 kA for 2 secs. Correct Ans: A Itemcode : AG1004 Q4: For the load flow solution the quantities specified at slack bus are: A P and Q. B P and V. Tuesday, August 27, 2019 Page 1 of 24

C Rs 20/ MWhr. D Rs 30/ MWhr. Correct Ans: C Itemcode : AG1009 Q9: The Thevenin and Norton equivalent of a network can be found: A If it contains voltage source only. B If it contains current source only. C If it contains independent voltage and current sources. D Even if it contains dependent and independent voltage and current sources. Correct Ans: D Itemcode : AG1010 Q10: The flux paths close and around the air gap have lengths comparable to the path directly underneath the core faces of air gap. This results that the flux tends to spread some what outside the air gap. This is called: A Leakage factor. B Magnetostriction. C Fringing. D Eddy curren flux. Correct Ans: C Itemcode : AG1011 Q11: The definite time taken by microprocessor to perform a specific task is called: A instruction cycle. B fetch cycle. C clock cycle. D machine cycle. Correct Ans: D Itemcode : AG1012 Q12: Debugging is the process of: A Writing a program for a microprocessor. B Executing a program for a microprocessor. C Copying a program from one memory location to another in a microprocessor. D Checking a program for identifying and removing the error. Tuesday, August 27, 2019 Page 3 of 24
Correct Ans: D Itemcode : AG1013 Q13: On receiving -ve feedback in an OP-amplifier circuit, its : A Gain and bandwidth both increase. B Gain and bandwidth both reduce. C Gain is increased but bandwidth is reduce. D Gain is reduced but bandwidth is increase. Correct Ans: D Itemcode : AG1014 Q14: A thermistor has a resistance temperature coefficient of -6% over the temperature range 250C to 450C. If the resistance of thermistor is 80 ohms at 250C, the resistance at 350C will be: A 12 ohms B 22 ohms C 32 ohms D 42 ohms Correct Ans: C Itemcode : AG1015 Q15: `The LED causes emission of light due to: A Emission of electrons. B Generation of electromagnetic radiation. C Conversion of heat energy into light energy. D The photoelectric effect. Correct Ans: B Itemcode : AG1016 Q16: The transistors in a push- pull power oscillator are operated in: A Common base configuration. B Common emitter configuration. C Common collector configuration. D Grounding mode. Correct Ans: B Tuesday, August 27, 2019 Page 4 of 24