KPSC-Instructor Grade I-079/2017 Answer key
Question Paper with answer key of the written exam (INSTRUCTOR GRADE I KERALA TECHNICAL EDUCATION) conducted on 02/12/2020 . Question paper code was ‘079/2017’.
#2. A 3 phase induction motor is running at a slip of 4% and input to the rotor is 2000watts. the mechanical power developed in the rotor is....?
#3. If the stator frequency and voltage of an induction motor are reduced proportionally, then.....?
#4. In a squirrel cage induction motor, the starting torque with auto transformer starting is.....times the torque with direct switching, K being the transformation ratio of the auto transformer.
#8. Which of the following types of heating will be preferred for cooking food without removing the outer shells?
#11. In a single phase full wave rectifier, during blocking state the peak inverse voltage of diode is Vm is the peak voltage?
#16. In a single phase power factor meter, the phase difference between the currents in the two pressure coils is....
#21. A mirror is placed behind the pointer in measuring instruments for......?
#23. The most economical DC distribution system is.....?
#25. Which of the following type of generators does not require equalizers for satisfactorily for parallel operation?
#28. A 200 KVA transformer has iron lossof 1KW and full load copper loss of 2 KW.the KVA corresponding to maximum efficiency is......
#29. In a synchronous machine, the angle between the synchronously rotating stator flux and rotor poles is called.....?
#30. A 100V/20V , 100 VA transformer is converted to 100V/110V auto transformer the rating of the auto transformer is....
#31. If the mechanical load of a three phase induction motor is increased from no load to full load, the input power factor of the motor will ....
#42. A string insulator has 5 units. The voltage across the bottom most unit is 25% of the total voltage. string efficiency is.....?
#50. The illumination is directly proportional to the cosine of the angle made by the normal to the illuminated surface with the direction of the incident flux, statement is associated with.....?
#51. If the current in a zero resistance wire AB is increased, the voltage Vab across the wire will.....
#54. A 1000W, 230 V electric kettle is connected in series with another similar kettle and the combination is connected to 230V supply. The total power drawn by the combination will be.....?
#60. Universal gates are...?
#61. In a full wave rectifier, the peak inverse voltage per diode is....?
#62. What is CDMA?
#63. Octal equivalent of decimal 51 is....?
#64. In a T flip flop, ratio of frequency of the input pulse to the frequency of out put pulse is....?
#65. The transistor amplifier stage has lowest input impedance in....?
#66. The function of a filter in a rectifier is to....?
#67. Register that is used to hold the memory address of the next instruction to be executed....?