Linear Induction Motor Question & Answers April 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 Hint 2). The winding placed on the bottom of the track in ________________ winding? Single side winding Double side winding Distributed winding Concentrated winding Hint 3). In _____________ winding, the magnetic field is produced on one side of the track only? Double side winding Distributed winding Concentrated winding Single side winding Hint 4). 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 Hint 5). In which one of the following DSLIM, the power source is DC? Synchronous DSLIM Asynchronous DSLIM DC-powered DSLIM AC-powered DSLIM Hint 6). 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 Hint 7). What is a common application of a LIM? Elevators Conveyor systems High-speed trains All of the above Hint 8). In which one of the following linear inductions motor the speed control is good? DSLIM LIM SLIM All of the above Hint 9). What are the advantages of iron core LIM? Efficient cooling Heavy in weight Lower cost Both a and c Hint 10). What is the standard form of LIM? Linear Induction Motor Line Induction Motor Lane Induction Motor Linear Internal Motor Hint 11). Which type of DSLIM has two separate power supplies for the two stators? Synchronous DSLIM Asynchronous DSLIM DC-powered DSLIM AC-powered DSLIM Hint 12). In which one of the following linear inductions motor the force density is high? DSLIM LIM SLIM All of the above Hint 13). What are the advantages of ironless LIM? No cogging Low force per package size Attractive forces in forcer Both a and c Hint 14). What are the advantages of slot-less LIM over ironless? Lower cost Lower attractive forces Less cogging None of the above Hint 15). The single coil or a few coils located at discrete positions along the track is known as ________________ winding? Single side Double side Distributed Concentrated Hint 16). 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 Hint 17). The figure shown below is a diagram of ______________ motor? Rotary induction motor Single sided linear induction motor Double sided linear induction motor Commutator Hint 18). What are the advantages of slot-less LIM over iron core? Lower cost Lower attractive forces Better heat dissipation None of the above Hint 19). 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 Hint 20). 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 Hint 21). The coil sizes are small in ________________ windings? Distributed Double side Both a and b None of the above Hint 22). 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 Hint 23). Which type of LIM operates based on the principle of magnetic attraction and repulsion? Single-sided LIM Double-sided LIM Synchronous LIM Asynchronous LIM Hint 24). 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 Hint 25). 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 Hint Linear Induction Motor MCQ for Quiz 26). 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 Hint 27). 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 Hint 28). 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 Hint 29). 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 Hint 30). 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 Hint 31). The winding placed on both sides of the track in ________________ winding? Single side winding Double side winding Distributed winding Concentrated winding Hint 32). In which one of the following DSLIM the complexity and cost is moderate? Synchronous DSLIM Asynchronous DSLIM AC-powered DSLIM All of the above Hint 33). The figure shown below is a diagram of ______________ motor? Rotary induction motor Single sided linear induction motor Double sided linear induction motor Commutator Hint 34). The power density is high in _______________ linear brushless DC motor? Iron core Iron less Slot-less All of the above Hint 35). Who is credited with inventing the linear induction motor? Nikola Tesla Thomas Edison Werner von Siemens Michael Faraday Hint 36). 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 Hint 37). 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 Hint 38). 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 Hint 39). The forcer weight is heaviest in _______________ linear brushless DC motor? Iron core Iron less Slot-less All of the above Hint 40). The number of windings is 1 (on one side only) in __________________ winding? Single side Double side Distributed Concentrated Hint 41). The winding distributed over the track surface in ________________ winding? Single side winding Double side winding Distributed winding Concentrated winding Hint 42). In _____________ winding the magnetic field is produced on both sides of the track? Double side winding Distributed winding Concentrated winding Single side winding Hint 43). In which one of the following DSLIM the complexity and cost is low? Synchronous DSLIM Asynchronous DSLIM AC-powered DSLIM All of the above Hint 44). 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 Hint 45). The figure shown below is a diagram of ______________ motor? Rotary induction motor Single sided linear induction motor Double sided linear induction motor Commutator Hint 46). In which one of the following linear inductions motor the efficiency is high? DSLIM LIM SLIM All of the above Hint 47). In which one of the following DSLIM the power source is AC? Synchronous DSLIM Asynchronous DSLIM AC-powered DSLIM All of the above Hint 48). The winding located in slots in the track surface in ________________ winding? Single sided winding Double sided winding Distributed winding Concentrated winding Hint 49). The coil sizes are large in ________________ windings? Single sided Double sided Concentrated Both a and c Hint 50). The number of windings is 2 (on both sides) in __________________ winding? Single sided Double sided Distributed Concentrated Hint Linear Induction Motor MCQ for Exams 51). Which one of the following forces is limited to low speeds and low power? Lorentz force Eddy current force Wedge force Hybrid force Hint 52). 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 Hint 53). 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 Hint 54). Which one of the following is an example of electromagnetic force? DC motors Electrostatic motors Piezoelectric motors Hydraulic motors Hint 55). 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 Hint 56). Which one of the following stator/rotors consists of a winding without an iron core? Slotted iron core Solid iron core Coreless Halbach array Hint 57). The force generated by the friction between the stator and the rotor is known as _____________? Frictional force Air cushion force Piezoelectric force Electrostatic force Hint 58). Which one of the following is an example of fluid force? DC motors Electrostatic motors Piezoelectric motors Hydraulic motors Hint 59). __________________ force is combination of Lorentz, eddy current, and/or wedge forces? Lorentz force Eddy current force Wedge force Hybrid force Hint 60). 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 Hint 61). 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 Hint 62). 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 Hint 63). 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 Hint 64). 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 Hint 65). 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 Hint 66). 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 Hint 67). 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 Hint 68). What are the types of forces in a linear induction motor? Electromagnetic force Gravity force Friction force Nuclear force Hint 69). The force generated by the deformation of a piezoelectric material is known as _____________? Frictional force Air cushion force Piezoelectric force Electrostatic force Hint 70). 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 Hint 71). 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 Hint 72). The force generated by the interaction between charged objects is known as _____________? Frictional force Air cushion force Piezoelectric force Electrostatic force Hint 73). 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 Hint 74). 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 Hint 75). Which one of the following forces is more complex to design, and higher cost? Lorentz force Eddy current force Wedge force Hybrid force Hint For More MCQs Capacitor Start Capacitor Run Motor Question & Answers Induction Motor Question & Answers Reluctance Motor Question & Answers Switched Reluctance Motor Question & Answers DC Motor Question & Answers Synchronous Motor Question & Answers Single Phase Induction Motor Question & Answers Poly Phase Induction Motor Question & Answers Time's up
