Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Blood Bank Technician Grade II - Medical Education Department' And exam conducted in the year 2020. And Question paper code was '031/2020'. 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.
032/2020
91. Ina thyristor
A) Latching current ॥ is associated with turn off process and holding current برا is
associated with turn on process
8) Both |, and برا associated with turn off process
C) برا is associated with turn off process and | is associated with turn on process
0) Both برا and |, are associated with turn on process
92. For an UJT employed for triggering of an SCR, Intrinsic strand off ratio 11 = 0.64 and
de source voltage = 20 ४. The UJT would trigger when the emitter voltage is
A) 128%
8) 13.5 ४
©) 10%
D) 5V
93. In a properly biased JFET will acts as a
A
B
0
0
) Current controlled current source
) Voltage controlled voltage source
) Voltage controlled current source
) Current controlled voltage source
94. The structure of IGBT is a
A
B
0
0
) N-N-P-P structure connected by a MOS gate
) PNP structure connected by a MOS gate
) PNPN structure connected by a MOS gate
) N-P-N-P structure connected by a MOS gate
95. The anode current through a conducting SCR is 10 A, if its gate current is made
one-fourth, then what will be the anode current ?
A 3