AC Voltage Controllers MCQs
1. What is the principle of operation for an On-Off control? a) Continuous modulation of voltageb) Switching between full voltage and zero voltagec) Modulating voltage … Read more
1. What is the principle of operation for an On-Off control? a) Continuous modulation of voltageb) Switching between full voltage and zero voltagec) Modulating voltage … Read more
1. Which type of inverter configuration requires multiple switches to be operated simultaneously to produce an AC output? a) Single-phase series resonant inverterb) Single-phase bridge … Read more
1. What is the primary advantage of using thyristors in series operation?a) Increased voltage handling capabilityb) Enhanced current regulationc) Improved efficiencyd) Greater power dissipation Answer: … Read more
1. What is the basic structure of a power diode? a) NPN configurationb) PNP configurationc) PN junctiond) None of the above Answer: c) PN junction … Read more
1. What medical device is primarily used to regulate abnormal heart rhythms? a) Ventilatorb) Dialyserc) Pacemakerd) Diathermy Answer: c) Pacemaker Explanation: Pacemakers are implantable devices … Read more
1. Which medical imaging technique utilizes X-rays to produce detailed images of internal body structures in real-time? a) MRIb) Ultrasonographyc) Fluoroscopyd) Thermography Answer: c) Fluoroscopy … Read more
1. What instrument is commonly used to measure blood pressure?A) SpirometerB) OxymeterC) SphygmomanometerD) Plethysmograph Answer: C) SphygmomanometerExplanation: A sphygmomanometer is the standard instrument used to … Read more
1. Which type of electrode is designed to minimize motion artifacts and skin impedance, commonly used in EEG recordings? a) Limb electrodesb) Floating electrodesc) Propelled … Read more
1. Which organelle is responsible for generating most of the energy needed for cellular processes?a) Nucleusb) Golgi apparatusc) Mitochondriad) Endoplasmic reticulum Answer: c) MitochondriaExplanation: Mitochondria … Read more
1. Which of the following devices is responsible for generating accurate timekeeping signals within a computer system? A) TimersB) Keyboard controllerC) Analog to digital convertersD) … Read more