Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name ' Furnce Operator Kerala Municipal Common Service / Electrician Health Services / Lineman PWD ' And exam conducted in the year 2019. And Question paper code was '026/2019'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
Zero power factor method is used to find of an alternators.
(ക) Power factor (8) Synchronous impedance
(C) Efficiency (D) Voltage regulation
A 10 Q resistor, 0.1 H inductor and 150 uF capacitor are connected in series and give a
200 V, 50 Hz ac supply. Find the power factor of the circuit.
^) 0.6 ® 0.5
© 7 യ 09
At the time of 3 phase power measurement using two wattmeter method; wattmeter
1 reads positive and wattmeter 2 reads zero, then the power factor is
ക) 05 ൫ 08
(0 பண் (D) Zero
If a 400 V, 5 HP motor having a cold resistance of armature is 0.25 Q and full load
current of 50 A is connected directly to the 400 V supply. The motor draws a starting
^) ۸ (8) 1600A
(9 17604 യു 5004
Face-plate type controller is used for starting a
(A) DC series motor (B) DC shunt motor
(C) Compound motor (D) Linear induction motor
If the value of a resistor is 4.7 + 5% €2, then its colour code is
(ಹ) Gray Violet Gold Silver (B) Gray Blue Silver Gold
(C) Yellow Violet Gold Gold (2) Yellow Violet Silver Gold
In colour coding of resistors, which band indicates the tolerance value ?
(A) First (B) Fourth
)0 Third (D) Fifth
‘Which one of the following motor does not change its direction of rotation ?
(ക) Split phase motor (B) Universal motor
(C) Stepper motor (D) Shaded pole motor