Khyber PakhtunKhwa Board of Technical Education Peshawar
Diploma of Associate Engineer
2nd Year Bio – Medical Technology New Course
Annual Examination 2012
Paper: - Solid State Electronics (BM – 214)
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Time Allowed: - 03 Hours. Max. Marks: - 100
Note: - Attempt any five questions. All questions carry equal marks.
Q.1: - (a) What is the role of doping of Impurities in pure silicon or germanium.
(b) What is depletion region and what is the impact of Forward & Reverse biasing on
depletion region.
Q.2: - (a) What is Conductor, Semi conductor and insulators.
(b) Explain P-type & N-type semi conductor.
Q.3:- (a) Draw and explain full wave rectification using two diodes.
(b) Draw and explain circuit of common base Amplifier.
Q.4: - (a) Why gate pulse is necessary in turning ON and OFF of a SCR.
(b) Explain the working principle of Photodiode and list its application.
Q.5: - (a) What is Oscillator.
(b) Describe the operation / working principles of Hartly Oscillator.
Q.6: - (a) What is BJT and UJT?
(b) What if JFET and how it can be used as a switch.
Q.7: - (a) What is clipping and clamping circuit.
(b) Describe the clamping circuit using diode.
Q.8: - Write short note on the following
iii) Photodiode
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Exam Paper of Bio Chemistry & Clinical Lab Equipment
Exam Paper of Digital Electronics
Exam Paper of X- Ray & Film Processing Equipment (BM – 223)
Exam Paper of Therapeutic Bio Medical Equipment (BM – 354)
Exam Paper of Sterilized Autocl: & Med Gases, Vacuum System (BM – 322)
Exam Paper of Solid State Electronics (BM – 214)
Exam Paper ofPatient Safety, Ultrasound & Radiation Physics (BM – 212)
Exam Paper ofOpto Electro Fibre Optics & Laser (BM-312)
Exam Paper of Operational Amplifier & Application (BM-242)
Exam Paper of ECG & Ultrasound Equipment (BM-34)
Exam Paper of Medical Terminology , Human Anatomy & Physiology (BM-311)
Exam Paper of Fundamentals of Bio Medical Equipment & Interface (BM-112)