1st PUC physics Series-9 December 3, 2020December 23, 2020wefru PUC Science 1st Year Physics Series-9 quiz 0 Created on December 02, 2020 By wefru 1st PUC Physics Series 9 TEST YOUR KNOWLEDGE OF SCIENCE 1 / 10 Q.81 Which of the following is considered as three-pin voltage regulator ICs? Voltage regulators which are adjustable Fixed voltage regulator Both a and b None of the above 2 / 10 Q.82 Which type of IC voltage regulator there is a continuous variation in the impedance of transistor in order to supply the desired amount of load current? Linear regulators Switching regulators Both a and b none of the above 3 / 10 Q.83 Voltage regulators require Only line regulation Only load regulation A constant load Load and line regulation 4 / 10 Q.84 What type of regulators offer inherent short-circuit protection? Shunt regulators Series regulators Three-terminal regulators Switching regulators 5 / 10 Q.85 Voltage regulators keep a constant …………output voltage when the input or load varies within limits. DC AC ripple none of the above 6 / 10 Q.86 Switching regulators are series type regulators, which has ……….power dissipation and …………efficiency. Reduced, reduced Reduced, increased Increased, increased Increased, reduced 7 / 10 Q.87 Which among the following performance parameter is called the change in line voltage within a specified range at a constant load current? Line regulation Load regulation Temperature stability factor Ripple factor 8 / 10 Q.88 The output voltage of a regulated power supply is affected by which of the following factors Input voltage Load current Temperature All the above 9 / 10 Q.89 Series pass transistor always operates in the………. region in a linear IC voltage regulator Active Saturation Cut-off All of these 10 / 10 Q.90 An alternator is an electromechanical ac generator. True Fals True & False none Your score isThe average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz