Kerala PSC Previous Years Question Paper & Answer
Page:7
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name ' Maintenance Engineer (Electronics)' And exam conducted in the year 2023. And Question paper code was '083/2023/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. 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.
D:-Intensity remains constant
Correct Answer:- Option-C
Question30:-Which of the following are characteristics of an LED ?
A. Fast response time
B. Hi warm up time
C. Long life
D. Law energy consumption.
A:-A, B and D
B:-All the above
C:-C and D
D:-A, C and D
Correct Answer:- Option-D
Question31:-In the given circuit the battery voltage is varied between 8 to 12 volts
and the zener breakdown voltage is 6 volts. What will be the maximum current
through the zener diode ?
A:-1.5 mA
B:-5 mA
C:-2.5 mA
D:-6.5 mA
Correct Answer:- Option-A
Question32:-Calculate the number of columns per second if the area is 5 cm?
recombination rate of holes is 1000 cms /S and differential length is 2 mm.
८0; -1.6..10-23
B:-1.6x10-22
രാ
D:-16x10-8
Correct Answer:- Option-B
Question33:-What is the maximum potential a material can process if it has zero
permittivity ?
A:-0
B:-Infinity
C:-Unity
D:-None of the above
Correct Answer:- Option-A
Question34:-What type of semiconductor a solar cell belongs to ?