Linear Induction Motor Question & AnswersApril 21, 2023 By Wat Electrical This article lists 75 Linear Induction Motor MCQs for engineering students. All the Linear Induction Motor Questions & Answers below include a hint and a link to the relevant topic wherever possible. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on the fundamentals of the Linear Induction Motor.Linear Induction Motor (LIM) is a type of electric motor that operates on the principles of electromagnetism to produce linear motion. They are commonly used in applications such as transportation systems, material handling, and industrial automation. Single-sided LIM has a single-sided primary and secondary. They are used in applications where space is limited and are often used in conveyor systems and small transportation systems. Double-sided LIM motors have primary and secondary windings on both sides of the motor. They are used in high-speed applications and are often used in transportation systems such as trains and subways. LIMs operate on the principles of electromagnetism. They consist of a primary coil that produces a magnetic field and a secondary coil that interacts with the magnetic field, producing a force that propels the secondary coil forward. LIMs are typically powered by three-phase AC power. The primary coil is connected to the power source, while the secondary coil is free to move along the length of the motor. When current flows through the primary coil, it produces a magnetic field that interacts with the secondary coil, producing a force that propels the secondary coil forward. 1). The multiple coils distributed along the length of the track is known as ________________ winding? Single side Double side Distributed Concentrated None Hint2). The winding placed on the bottom of the track in ________________ winding? Single side winding Double side winding Distributed winding Concentrated winding None Hint3). In _____________ winding, the magnetic field is produced on one side of the track only? Double side winding Distributed winding Concentrated winding Single side winding None Hint4). In which one of the following inductions motor the starting torque is low? Wound rotor induction motor Squirrel cage induction motor Double fed induction motor Both a and c None Hint5). In which one of the following DSLIM, the power source is DC? Synchronous DSLIM Asynchronous DSLIM DC-powered DSLIM AC-powered DSLIM None Hint6). What is the main difference between a single-sided LIM and a double-sided LIM? The number of phases The type of winding used The number of primaries and secondary's The type of rotor used None Hint7). What is a common application of a LIM? Elevators Conveyor systems High-speed trains All of the above None Hint8). In which one of the following linear inductions motor the speed control is good? DSLIM LIM SLIM All of the above None Hint9). What are the advantages of iron core LIM? Efficient cooling Heavy in weight Lower cost Both a and c None Hint10). What is the standard form of LIM? Linear Induction Motor Line Induction Motor Lane Induction Motor Linear Internal Motor None Hint11). Which type of DSLIM has two separate power supplies for the two stators? Synchronous DSLIM Asynchronous DSLIM DC-powered DSLIM AC-powered DSLIM None Hint12). In which one of the following linear inductions motor the force density is high? DSLIM LIM SLIM All of the above None Hint13). What are the advantages of ironless LIM? No cogging Low force per package size Attractive forces in forcer Both a and c None Hint14). What are the advantages of slot-less LIM over ironless? Lower cost Lower attractive forces Less cogging None of the above None Hint15). The single coil or a few coils located at discrete positions along the track is known as ________________ winding? Single side Double side Distributed Concentrated None Hint16). In which one of the following induction motor, the maintenance is more complex? Wound rotor induction motor Squirrel cage induction motor Double fed induction motor Both a and c None Hint17). The figure shown below is a diagram of ______________ motor? Rotary induction motor Single sided linear induction motor Double sided linear induction motor Commutator None Hint18). What are the advantages of slot-less LIM over iron core? Lower cost Lower attractive forces Better heat dissipation None of the above None Hint19). In _____________ winding, the magnetic field is produced by a few coils, creating a non-uniform magnetic field? Double side winding Distributed winding Concentrated winding Single side winding None Hint20). What is the standard form of SLIM? Single-sided Linear Induction Motor Single-sided Line Induction Motor Single-sided Linear Internal Motor Single-sided Lane Induction Motor None Hint21). The coil sizes are small in ________________ windings? Distributed Double side Both a and b None of the above None Hint22). Which one of the following induction motors is more controllable? Wound rotor induction motor Squirrel cage induction motor Double fed induction motor Both a and c None Hint23). Which type of LIM operates based on the principle of magnetic attraction and repulsion? Single-sided LIM Double-sided LIM Synchronous LIM Asynchronous LIM None Hint24). Which type of LIM requires a separate power supply for the rotor and stator windings? Single-sided LIM Double-sided LIM Asynchronous LIM Synchronous LIM None Hint25). What is a Double-sided Linear Induction Motor? A type of rotary motor A type of single-sided linear motor A type of linear motor with two stators and one rotor A type of linear motor with two rotors and one stator None HintLinear Induction Motor MCQ for Quiz26). Which of the following is not a disadvantage of using a DSLIM? More complex construction and maintenance Higher cost compared to single-sided LIMs Lower efficiency compared to single-sided LIMs Limited directional control None Hint27). In which one of the following DSLIM the complexity, efficiency, and cost are high? Synchronous DSLIM Asynchronous DSLIM DC-powered DSLIM Both a and c None Hint28). Which of the following is true about a LIM? It produces rotational motion It produces linear motion It can produce both rotational and linear motion It cannot produce any motion None Hint29). In _____________ winding the magnetic field is produced by multiple coils, creating a more uniform magnetic field? Double side winding Distributed winding Concentrated winding Single side winding None Hint30). What is the standard form of DSLIM? Double-sided Linear Induction Motor Double -sided Line Induction Motor Double -sided Lane Induction Motor Double -sided Linear Internal Motor None Hint31). The winding placed on both sides of the track in ________________ winding? Single side winding Double side winding Distributed winding Concentrated winding None Hint32). In which one of the following DSLIM the complexity and cost is moderate? Synchronous DSLIM Asynchronous DSLIM AC-powered DSLIM All of the above None Hint33). The figure shown below is a diagram of ______________ motor? Rotary induction motor Single sided linear induction motor Double sided linear induction motor Commutator None Hint34). The power density is high in _______________ linear brushless DC motor? Iron core Iron less Slot-less All of the above None Hint35). Who is credited with inventing the linear induction motor? Nikola Tesla Thomas Edison Werner von Siemens Michael Faraday None Hint36). What was the initial purpose of the linear induction motor invented by Nikola Tesla? To power streetcars To generate electricity To drive machinery To propel boats None Hint37). Which type of linear induction motor was invented in the 1960s and became widely used for high-speed transportation systems? Short-stator linear induction motor Long-stator linear induction motor Halbach-array linear induction motor Maglev linear induction motor None Hint38). What are the advantages of short-stator linear induction motor? Limited speed and power capabilities Low efficiency Simple to design, low cost Both a and c None Hint39). The forcer weight is heaviest in _______________ linear brushless DC motor? Iron core Iron less Slot-less All of the above None Hint40). The number of windings is 1 (on one side only) in __________________ winding? Single side Double side Distributed Concentrated None Hint41). The winding distributed over the track surface in ________________ winding? Single side winding Double side winding Distributed winding Concentrated winding None Hint42). In _____________ winding the magnetic field is produced on both sides of the track? Double side winding Distributed winding Concentrated winding Single side winding None Hint43). In which one of the following DSLIM the complexity and cost is low? Synchronous DSLIM Asynchronous DSLIM AC-powered DSLIM All of the above None Hint44). Which of the following is not a step in the process of induction? Observing a pattern Forming a hypothesis Testing the hypothesis Rejecting the hypothesis None Hint45). The figure shown below is a diagram of ______________ motor? Rotary induction motor Single sided linear induction motor Double sided linear induction motor Commutator None Hint46). In which one of the following linear inductions motor the efficiency is high? DSLIM LIM SLIM All of the above None Hint47). In which one of the following DSLIM the power source is AC? Synchronous DSLIM Asynchronous DSLIM AC-powered DSLIM All of the above None Hint48). The winding located in slots in the track surface in ________________ winding? Single sided winding Double sided winding Distributed winding Concentrated winding None Hint49). The coil sizes are large in ________________ windings? Single sided Double sided Concentrated Both a and c None Hint50). The number of windings is 2 (on both sides) in __________________ winding? Single sided Double sided Distributed Concentrated None HintLinear Induction Motor MCQ for Exams51). Which one of the following forces is limited to low speeds and low power? Lorentz force Eddy current force Wedge force Hybrid force None Hint52). Which one of the following coils consists of multiple turns of wire distributed along the length of the primary or secondary? Concentrated coils Distributed coils Slotless coils Segmented coils None Hint53). Which one of the following stator/rotors consists of a magnet array with alternating polarity, resulting in a strong and uniform magnetic field? Slotted iron core Solid iron core Coreless Halbach array None Hint54). Which one of the following is an example of electromagnetic force? DC motors Electrostatic motors Piezoelectric motors Hydraulic motors None Hint55). Which one of the following forces generated by the interaction between the magnetic field and the current-carrying conductors? Lorentz force Eddy current force Wedge force Hybrid force None Hint56). Which one of the following stator/rotors consists of a winding without an iron core? Slotted iron core Solid iron core Coreless Halbach array None Hint57). The force generated by the friction between the stator and the rotor is known as _____________? Frictional force Air cushion force Piezoelectric force Electrostatic force None Hint58). Which one of the following is an example of fluid force? DC motors Electrostatic motors Piezoelectric motors Hydraulic motors None Hint59). __________________ force is combination of Lorentz, eddy current, and/or wedge forces? Lorentz force Eddy current force Wedge force Hybrid force None Hint60). Which one of the following forces requires good electrical conductivity in the secondary, can cause heating and power loss? Lorentz force Eddy current force Wedge force Hybrid force None Hint61). Which one of the following forces generated by a shaped primary or secondary that creates a non-uniform magnetic field? Lorentz force Eddy current force Wedge force Hybrid force None Hint62). Which one of the following coils consists of a single turn or a few turns of wire at specific locations on the primary or secondary? Concentrated coils Distributed coils Slotless coils Segmented coils None Hint63). Which one of the following stator/rotors consists of an iron core with slots for the winding? Slotted iron core Solid iron core Coreless Halbach array None Hint64). The force generated by a thin layer of air between the stator and the rotor is known as _____________? Frictional force Air cushion force Piezoelectric force Electrostatic force None Hint65). Which one of the following coils consists of multiple sections of coils that can be individually controlled? Concentrated coils Distributed coils Slotless coils Segmented coils None Hint66). Which one of the following stator/rotors consists of a solid iron core with a distributed or concentrated winding? Slotted iron core Solid iron core Coreless Halbach array None Hint67). The force generated by the interaction between the magnetic fields of the stator and the rotor is known as _____________? Frictional force Air cushion force Piezoelectric force Electromagnetic force None Hint68). What are the types of forces in a linear induction motor? Electromagnetic force Gravity force Friction force Nuclear force None Hint69). The force generated by the deformation of a piezoelectric material is known as _____________? Frictional force Air cushion force Piezoelectric force Electrostatic force None Hint70). Which one of the following forces limited to low speed and low power, can cause vibration and noise? Lorentz force Eddy current force Wedge force Hybrid force None Hint71). Which one of the following coils consists of a winding without slots in the core, resulting in a more uniform magnetic field? Concentrated coils Distributed coils Slotless coils Segmented coils None Hint72). The force generated by the interaction between charged objects is known as _____________? Frictional force Air cushion force Piezoelectric force Electrostatic force None Hint73). What are the different types of forces acting in a linear induction motor? Electromagnetic force and gravitational force Electromagnetic force and frictional force Electromagnetic force and centripetal force Electromagnetic force and tension force None Hint74). Which one of the following forces generated by the interaction between the magnetic field and the induced eddy currents in the secondary conductor? Lorentz force Eddy current force Wedge force Hybrid force None Hint75). Which one of the following forces is more complex to design, and higher cost? Lorentz force Eddy current force Wedge force Hybrid force None HintFor More MCQsCapacitor Start Capacitor Run Motor Question & AnswersInduction Motor Question & AnswersReluctance Motor Question & AnswersSwitched Reluctance Motor Question & AnswersDC Motor Question & AnswersSynchronous Motor Question & AnswersSingle Phase Induction Motor Question & AnswersPoly Phase Induction Motor Question & Answers Time's up
