Kerala PSC Previous Years Question Paper & Answer
Page:21
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.
having half of chopper supply voltage when duty cycle is 80%. Find the duty cycle
for obtaining half rated speed at rated torque.
A:-40%
B:-45%
C:-50%
D:-55%
Correct Answer:- Option-D
Question100:-A signal b cos(at) is used amplitude modulated. The transmitted
signal can be
a0 Cos (2nf,t + cos(ato))
3b cos(at) cos(2rf,t + ¢)
_.bcos(at)cos*(2nt,t + ¢)
0.0 cos*(2nf,t + cos(at))
Correct Answer:- Option-B