Kerala PSC Previous Years Question Paper & Answer

Title : Jr Instructor (Mechanic Consumer Electronic Appliances) Industrial Training Dept (CAT NO 595/2017)
Question Code : A

Page:5


Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Jr Instructor (Mechanic Consumer Electronic Appliances) Industrial Training Dept (CAT NO 595/2017)' And exam conducted in the year 2019. And Question paper code was '062/2019/OL'. 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.

page: 5 out of 11
Excerpt of Question Code: 062/2019/OL

C:-15¢cm
D:-1.5 mm
Correct Answer:- Option-A
Question37:-The cross talk due to the electromagnetic interferance can be eliminated by
A:-Placing a high value inductor in series with the transmission line
B:-Using capacitance network in parallel with the transmission line
C:-Twisting the copper wires
D:-A stub of appropriate length is placed at some distance from the load
Correct Answer:- Option-C
Question38:-The insulation thickness in conductor of a cable depend on
A:-power handling ability of cable
B:-Applied voltage
C:-Current camrying capability of cable
D:-The length of the cable
Correct Answer:- Option-B
Question39:-In multi digit seven segment displays, the Ripple Blank Input and Ripple Blank Outputs are used for
A:-Dynamic display in order to save power and to increase the life of the display
B:-Blank out the all the zeros and make it look more intelligent
C:-Cascading the display otherwise displays not works synchronously
D:-Blank out the leading zeros and make it look more intelligent
Correct Answer:- Option-D
Question40:-A 1KVA, 12V online ups connected to a load of 500 Watts, the battery used is 100Ah, then what will be the back
up time if the losses are negligible
A:-120 minutes
B:-2 hour and 40 minutes
C:-144 minutes
D:-2.6 hours
Correct Answer:- Option-C
Question41:-Candela is the unit for
A:-Light flux
B:-Luminous intensity
C:-Wavelength
D:-Luminous efficiency
Correct Answer:- Option-B
Question42:-Which of the following is not true in case of a DSO.
A:-The waveforms are stored in memory to enable them to be processed as needed.
B:-The accuracy of DSO is higher than that of analogue scopes
C:-It is possible to programme the DSO to high level of functionality
D:-It has low input impedance which enables the conversion of ADC faster
Correct Answer:- Option-D
Question43:-Manganin is the alloy of
A:-Copper, Manganese and Nickel
B:-Copper, Magnesium and Nickel
C:-Manganese, Gallium, Nickel and Iron
D:-Manganese, Copper,Gallium, Nickel
Correct Answer:- Option-A
Question44:-Which type of transducer is generally used in electronic weighing machines
A:-Inductive
B:-Capacitive
C:-Resistive
D:-All of the above
Correct Answer:- Option-C
Question45:-What will be the output when one of the Zener diode short in the zener diode peak clipper
A:-Only one half cycle in the output which resembles halfwave rectifier output
B:-No output due to the short circuited zener diode
C:-The output is only the peak portion of one half cycle
D:-The output is the peak clipped halfwave output
Correct Answer:- Option-D
Question46:-At room temperature, a silicon crystal act like

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Jr Instructor (Mechanic Consumer Electronic Appliances) Industrial Training Dept (CAT NO 595/2017) : Video