Capacitor Start Capacitor Run Motor Question & AnswersFebruary 21, 2023 By Wat Electrical This article lists 50 Capacitor Start Capacitor Run Motor MCQs for engineering students. All the Capacitor Start Capacitor Run Motor Questions & Answers given below include a hint and a link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on the fundamentals of Capacitor Start Capacitor Run Motor.Capacitor-type motors are classified into two types namely, start-type capacitor motors and run-type capacitor motors or dual run-type capacitor motors. A start-type capacitor motor raises the motor's starting torque and operates in on-off conditions at 75 % speed. Whereas a run-type capacitor motor energizes the auxiliary-type winding to generate a dynamic magnetic-based field during the operation of the motor. A combination of start and run type motor is a capacitor start run motor (CSCR) or two-value capacitor.The components of the Capacitor Start Capacitor Run Motor include a stator, and cage rotor, with 2 windings. XA=1/2PifCA is the capacitance reactance-based formula of a starting winding. Where 'f is the frequency, Xa is the winding reactance, and C is the capacitance.The advantages of the Capacitor Start Capacitor Run Motor include greater efficiency, higher pull-out, and greater inertia. The disadvantages of induction-type motors include low position, speed, and starting torque. The applications of Capacitor Start Capacitor Run Motor include air compressions and refrigeration. 1). Which of the following are the components of Capacitor Start Capacitor Run Motor? Cage rotor Stator Windings All the above None Hint2). Which of the following are the types of stator windings in Capacitor Start Capacitor Run Motor? Auxilary Main Secondary Both a and b None Hint3). At what angles does the windings in Capacitor Start Capacitor Run Motor are placed? 0 90 120 180 None Hint4). How many capacitors does a Capacitor Start Capacitor Run Motor has? 2 3 4 5 None Hint5). A Capacitor Start Capacitor Run Motor is also called? Two value capacitor motor Three value capacitor motor Single value capacitor motor None of the above None Hint6). Which of the following is the capacitance reactance based formula of a starting winding? XA=1/2PifCA XA=2PifCA XA=1/PifCA XA=1/fCA None Hint7). At ___ speed does this motor disconnects the starting capacitor? Synchronous Asynchronous Constant Both b and c None Hint8). Which of the following are the properties of long run capacitor? Oil filled paper Long period rated Water filled paper Both a and b None Hint9). Which of the following are the advantages of Capacitor Start Capacitor Run Motor? Greater efficiency Higher pull-out Greater inertia All the above None Hint10). Which of the following are the applications of Capacitor Start Capacitor Run Motor? Air compressions Refrigeration’s Pumping All the above None Hint11). Which of the following is the phase of Capacitor Start Capacitor Run Motor? Single Dual 3 Both a and c None Hint12). Which of the following are the components of stator? Frame Core Windings All the above None Hint13). Which of the following are the types of rotor? Squirrel cage Phase wound Split Both a and b None Hint14). ____ excites rotor winding? AC supply DC supply ADC supply All the above None Hint15). A field type winding in a rotor induces constant ____ field in its core? Magnetic Electric Both a and b None of the above None Hint16). Which of the following is the synchronous speed of CSCR induction type motor? 70 to 90% 75 to 80% 75 to 89% 60-99% None Hint17). A CSCR induction type motor has ____ better property? Power factor Cost Resistance All the above None Hint18). Which of the following are the components of AC type motor? Stator Rotor Shaft All the above None Hint19). Which of the following is the technique for handling the speed of AC type motor? Altering frequency Altering time period Constant frequency Constant time period None Hint20). Which of the following techniques are used for AC frequency type motor to adjust its AC frequency? VFD ASD AC inverter All the above None HintCapacitor Start Capacitor Run Motor MCQs for Exams21). Which of the following are AC type motors? Synchronous Asynchronous Induction Both a and c None Hint22). Which of the following is the input energy of synchronous type motor? Electric Mechanical Chemical All the above None HintRead more about Induction Motors.23). A synchronous type motor is a ___ type of motor? Not self start Self start Friction Non-friction None Hint24). Induction type motor is also called? Asynchronous type motor Synchronous type motor Time dependent Both b and c None HintRead more about Asynchronous Type Motor25). A Induction type uses ___ phases? Single Three Two Both a and b None Hint26). Which of the following are the advantages of induction type motor? Simple Not expensive Low maintenance All the above None Hint27). Which of the following are the disadvantages of induction type motor? Low position control Minimum speed Low starting torque All the above None Hint28). Which of the following are the problems raised in AC type motor? Eddy current losses Poor positioning Sparking All the above None HintRead more about eddy current.29). Which of the following are the applications of AC type motor? Blowers Washing machines Disk drivers All the above None Hint30). Which of the following is the steps for choosing a AC type motor? Minimum power factor Greater efficiency Greater torque All the above None Hint31). Which of the following are the types of capacitor type motor? Run capacitor Start capacitor Stop capacitor Both a and b None Hint32). Which of the following is the power ratings of a start type capacitor? 70 microfarads 80 microfarads 90 microfarads 100 microfarads None Hint33). Which of the following is the voltage classification of a start capacitor type motor? 125V, 165V, 250V, 330V 200V, 130V, 150V, 500V 200V, 170V, 150V, 500V 290V, 130V, 150V, 500V None Hint34). Which of the following are the components of start type capacitor motor? LC RC RL RLC None Hint35). An LC type circuit is also called? Resonate type of circuit Tank circuit Tuned circuit All the above None Hint36). Which of the following is the function of LC circuit? Bandpass filter Band elimination filter Band stop filter Both b and c None Hint37). Which of the following are the applications of LC circuits? Tuners Filters Oscillators All the above None Hint38). In which of the frequency term does a LC circuit defines the frequency variable? Real Imaginary Zero All the above None Hint39). Which of the following is the resonant frequency of LC circuit? 1/ sqrt[LC] 1/ LC 1/ 2LC L/C None Hint40). Which of the following are the units of inductor? Farads Ohms Henry Seconds None HintRead more about Inductor Types .Capacitor Start Capacitor Run Motor MCQs for Students41). Which of the following are the units of capacitor? Farads Ohms Henry Seconds None Hint42). Which of the following are the units of angular frequency? Radians per seconds Radians Meters Kilo meters None Hint43). Which of the following is the frequency formula? wo/2Pi 2Pi/wo 1/ 2Pi wo Both b and c None Hint44). Which of the following is the capacitor range of run type motor? 1.5 to 100 micro farads 100 micro farads to 150 micro farads 120 to 150 micro farads 300 micro farads None Hint45). Which of the following is the application of dual run type capacitor? Compressor motor Fan motor Hydraulic motor Both a and b None Hint46). Which of the following are the terminals of dual run type capacitors? FAN HERM Common C All the above None Hint47). Which of the following is the shape of dual run type capacitor? Rectangle Hexa Round Triangle None Hint48).Which of the following type of capacitor improves AC compressors, fan’s operation in a motor along with compressor? Single Run Dual run Single start Dual start None Hint49). Which of the following are the protection levels of capacitor run circuits? Zero protection Failed open circuit Fail short circuit All the above None Hint50). A motor type capacitor is ___ type of capacitor? Electrical Mechanical Chemical Both b and c None HintFor More MCQs Synchronous motor MCQsReluctance motor MCQsInductance motor MCQs Time's up
