Electrical Q & A - Inst Tools https://instrumentationtools.com/category/electrical-q-a/ Instrumentation, Electrical, PLC, Tutorials Sat, 21 Jun 2025 04:35:18 +0000 en-US hourly 1 https://wordpress.org/?v=7.0.1 https://instrumentationtools.com/wp-content/uploads/2018/10/cropped-Instrumentation-Tools-Logo-150x150.png Electrical Q & A - Inst Tools https://instrumentationtools.com/category/electrical-q-a/ 32 32 VFD Interview Questions and Answers – Electrical Drives https://instrumentationtools.com/vfd-interview-questions/ https://instrumentationtools.com/vfd-interview-questions/#comments Thu, 11 Jan 2024 02:30:00 +0000 https://ye1o34zhk8.onrocket.site/?p=60908 Learn the latest VFD interview questions and answers related to the electrical drives and industrial automation engineering field.

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]]> https://instrumentationtools.com/vfd-interview-questions/feed/ 4 Rotary Encoder Interview Questions and Answers https://instrumentationtools.com/rotary-encoder-interview-questions-and-answers/ https://instrumentationtools.com/rotary-encoder-interview-questions-and-answers/#respond Mon, 13 Nov 2023 02:30:00 +0000 https://ye1o34zhk8.onrocket.site/?p=60252 In this post, we will learn some general and tricky questions asked regarding rotary encoders during an interview.

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]]> https://instrumentationtools.com/rotary-encoder-interview-questions-and-answers/feed/ 0 Most Asked Questions on Servo Motor (Answers) https://instrumentationtools.com/most-asked-questions-on-servo-motor/ https://instrumentationtools.com/most-asked-questions-on-servo-motor/#respond Tue, 07 Nov 2023 02:30:00 +0000 https://ye1o34zhk8.onrocket.site/?p=60250 In this post, we will learn some most asked questions on servo motor with answers during an electronics and electrical engineer interview.

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]]> https://instrumentationtools.com/most-asked-questions-on-servo-motor/feed/ 0 Electric Drives and Traction Interview Questions https://instrumentationtools.com/electric-drives-and-traction-interview-questions/ https://instrumentationtools.com/electric-drives-and-traction-interview-questions/#comments Wed, 01 Aug 2018 19:55:50 +0000 https://3-inst.toejvy8-liquidwebsites.com/?p=30339 Electric Drives and Traction Interview Questions 1. What are the requirements of an ideal traction system? The requirements of an ideal traction system are as follows The starting tractive effort should be high so as to have rapid acceleration. The wear on the track should be minimum. Pollution free Speed control should be easy. The […]

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]]> https://instrumentationtools.com/electric-drives-and-traction-interview-questions/feed/ 1 Electric Traction Objective Questions and Answers https://instrumentationtools.com/electric-traction-objective-questions-and-answers/ https://instrumentationtools.com/electric-traction-objective-questions-and-answers/#comments Wed, 01 Aug 2018 19:50:11 +0000 https://3-inst.toejvy8-liquidwebsites.com/?p=30331 1. Which of the following is an advantage of electric traction over other methods of traction ? (a) Faster acceleration (b) No pollution problems (c) Better braking action (d) All of the above Ans: a 2. Which of the following is the voltage for single phase A.C. system ? (a)    22 V (b)   […]

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]]> https://instrumentationtools.com/electric-traction-objective-questions-and-answers/feed/ 1 Electrical Machines Objective Questions & Answers https://instrumentationtools.com/electrical-machines-objective-questions-answers/ https://instrumentationtools.com/electrical-machines-objective-questions-answers/#respond Thu, 28 Jun 2018 06:26:25 +0000 https://3-inst.toejvy8-liquidwebsites.com/?p=29200 Electrical Machines Objective Questions & Answers Q.1 The two winding’s of a transformer are (A) conductively linked. (B) inductively linked. (C) not linked at all. (D) electrically linked. Q.2 A salient pole synchronous motor is running at no load. Its field current is switched off. The motor will (A) come to stop. (B) continue to run […]

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]]> https://instrumentationtools.com/electrical-machines-objective-questions-answers/feed/ 0 Stepper Motors Objective Questions & Answers https://instrumentationtools.com/stepper-motors-objective-questions-answers/ https://instrumentationtools.com/stepper-motors-objective-questions-answers/#respond Wed, 10 Jan 2018 04:30:08 +0000 https://3-inst.toejvy8-liquidwebsites.com/?p=21165 Stepper Motors Objective Questions & Answers 1. A variable reluctance stepper motor is constructed of ______________ material with salient poles. a) Paramagnetic b) Ferromagnetic c) Diamagnetic d) Non-magnetic Answer: b Explanation: A variable reluctance stepper motor is the motor that has motion in steps with respect to increase in time and constructed of ferromagnetic material […]

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]]> https://instrumentationtools.com/stepper-motors-objective-questions-answers/feed/ 0 Latest Transformers Questions and Answers https://instrumentationtools.com/latest-transformers-questions-answers/ https://instrumentationtools.com/latest-transformers-questions-answers/#comments Sun, 03 Sep 2017 05:15:00 +0000 https://inst-tools.rdkaijf1-liquidwebsites.com/?p=16622 What is a transformer and how does it work? A transformer is an electrical static equipment designed to convert alternating current from one voltage to another. It can be designed to “step up” or “step down” voltages and works on the magnetic induction principle. A transformer has no moving parts and is a completely static […]

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]]> https://instrumentationtools.com/latest-transformers-questions-answers/feed/ 2 Latest Electrical Motors Questions and Answers https://instrumentationtools.com/latest-electrical-motors-questions-and-answers/ https://instrumentationtools.com/latest-electrical-motors-questions-and-answers/#respond Tue, 22 Aug 2017 04:45:53 +0000 https://inst-tools.rdkaijf1-liquidwebsites.com/?p=16617 How do the new IE efficiency classes compare with the old EFF efficiency classes? The new IS: 12615-2011 defines the following efficiency classes of low-voltage three phase asynchronous motors in the power range from 0.75 kW to 375 kW. IE1 = Standard Efficiency (comparable to EFF2) (only for variable frequency drive application). IE2 = High […]

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]]> https://instrumentationtools.com/latest-electrical-motors-questions-and-answers/feed/ 0 Electrical Machines Objective Questions https://instrumentationtools.com/electrical-machines-objective-questions/ https://instrumentationtools.com/electrical-machines-objective-questions/#respond Sun, 30 Apr 2017 12:48:15 +0000 https://3-inst.toejvy8-liquidwebsites.com/?p=23000 Electrical Machines Questions & Answers 1. Magnetic Circuits Principle of Energy Conversion Excited Magnetic Systems 2. Basic Concepts in Rotating Machines Reluctance Motor Doubly Excited Magnetic Systems Elementary Synchronous Machines Singly Excited Electric Field Systems Torque Production and Dynamic Equations Terms Pertaining to Rotating Machines Rotating Magnetic Field – 1 Rotating Magnetic Field – 2 […]

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