ITI Electrician Multiple Choice Questions in Hindi ITI objective questions in Hindi pdf, electrician ITI objective questions in English
ITI ELECTRICIAN Multiple Choice Questions-
1) श्रेणी C की अग्नि है –
A. कागज की आग
B. पेट्रोल की आग
C. LPG गैस की आग
D. तारों और मशीनों की आग
2) ओह्म के नियम अनुसार –
A. V = R
B. R = I/V
C. R = V/I
D. V = I/R
3) सोल्डरिंग आयरन की बिट किस धातु की होती है –
A. तांबा
B. नाइक्रोम
C. कार्बन
D. यूरेका
4) 1 HP (मीट्रिक) –
A. 735 वाट
B. 736 वाट
C. 735.5 वाट
D. 746 वाट
5) MCB का पूरा नाम –
A. मिडिल सर्किट ब्रेकर
B. मेन सर्किट ब्रेकर
C. मिनिएचर सर्किट ब्रेकर
D. मेनलाइन करंट ब्रेकर
6) चुम्बकीय फलस्क का मात्रक –
A. फेराडे
B. न्यूटन
C. वैबर
D. कूलाॅम
7) भारत में सप्लाई फ्रीक्वेंसी –
A. 40
B. 50
C. 60
D. 70
8) इनमें से कौनसा एक डायोड है –
A. MN
B. OP
C. PN
D. DP
9) यूरेका तार –
A. 60% तांबा 40% निकेल
B. 60% तांबा 40% स्टील
C. 30% नाइक्रोम 70% निकेल
D. 30% स्टील 70% तांबा
10) यदि किसी डीसी परिपथ का प्रतिरोध 5 ओह्म तथा सप्लाई 10 वोल्ट है तो धारा का मान ज्ञात करो ?
A. 4
B. 0.25
C. 50
D. 2
11) वोल्टेज रेगुलेशन में उपयोग –
A. जेनर डायोड
B. विभान्तर
C. फ्यूज
D. रिले
12) ब्रिज दिष्टकारी में कितने डायोड उपयोग किए जाते हैं –
A. 1
B. 2
C. 3
D. 4
13) द्वितीयक सेल है –
A. डेनियल सेल
B. लैड ऐसिड सेल
C. मरकरी सेल
D. लैकलांशी सेल
14) तांबे का गलनांक –
A. 960
B. 1020
C. 1086
D. 1122
15) इनमें से अचालक पदार्थ है –
A. अभ्रक
B. टिन
C. सीसा
D. पारा
16) सोल्डरिंग आयरन का एलीमेन्ट होता है –
A. तांबा
B. जस्ता
C. यूरेका
D. नाइक्रोम
17) इम्पीडेंस का मात्रक है –
A. मेक्सवेल
B. कूलाॅम
C. ओह्म
D. वेबर
18) बैट्री का आपेक्षिक घनत्व किससे नापा जाता है –
A. मल्टीमीटर
B. हाइड्रोमीटर
C. लैक्टोमीटर
D. वायरगेज
19) परमाणु के नाभिक में होते है –
A. प्रोटाॅन, न्यूट्राॅन
B. प्रोटाॅन, इलेक्ट्रान
C. इलेक्ट्रान, न्यूट्राॅन
D. न्यूट्राॅन, अणु
20) UPS का पूरा नाम –
A. Unique power system
B. Uninterrupted power supply
C. Ultra power supply
D. Ultra panel system
ITI ELECTRICIAN Questions :-
1. उच्चतम दक्षता प्राप्त करने के लिए डी. सी. जनित्र में ब्रशों को रखना चाहिए. उत्तर. चुम्बकीय उदासीन अक्ष पर
2.एक 220 V D.C. मोटर में 0.2 का आर्मेचर प्रतिरोध है और 215 V का बैंक E.M.F. है तो इसमें कितनी धारा बह रही है. उत्तर. 25 एम्पियर
3. डीसी मशीन का योक किस चीज़ से बनता है? – उत्तर. कास्ट आयरन
4. कम क्षमता वाली डी. सी. मशीन की योक ……… की बनायीं जाती है. उत्तर. कास्ट -आयरन
5. परिणामित्र स्टार डेल्टा संयोजन में प्राइमरी फेज वोल्टेज ———- उत्तर. VL/3
6. प्रायमरी परिपथ की 100 – 200 एम्पियर विधुत विधुत धरा को केवल 1 – 2 एम्पियर विधुत धारा परिवर्तित किया जाता है | उत्तर. धारा परिणामित्र
7. जब दो ट्रांसफॉर्मर समान्तर क्रम में काम कर रहे है तो वे किस के आधार पर लोड बाँटेगे उत्तर. KVAरेटिंग
8. यदि कोई डी.सी.शंट मोटर लोडरहित अवस्था में कार्यरत है और उसकी फील्ड -वाइडिंग ओपन -सर्किट हो जाय तो क्या होगा. उत्तर. मोटर की घूर्णन गति उच्च हो जाएगी
9. यदि आर्मेचर वाइडिंग के पोलो की संख्या 2 है तो समानान्तर पथो की संख्या होगी. उत्तर. 2
10. डायनेमोमीटर प्रकार के यन्त्र में स्थिर रखा जाता है | उत्तर. धारा कुंडलियों को
11. तापीय बिजली प्लांट में प्रयुक्त होने वाले कोयले में राख की मात्रा …….. होती है. उत्तर. करीब 20 %
12. रिले का मुख्य कार्य है – उत्तर. फॉल्ट ढूढ़ना
13. कम्पाउन्डिड डी.सी. जेनरेटर का एक उपयोग है. उत्तर. इलेक्ट्रोप्लेटिंग के लिए
14. नमी सोखने के बाद सिल्का जैल का रंग हो जाता है | उत्तर. नीला
15. यदि किसी कार्यरत डी.सी. सीरीज मोटर की फील्ड -वाइंडिंग अचानक ओपन -सर्किट हो जाए तो क्या होगा. उत्तर. मोटर रुक जाएगी
16. खुला परिपथ परिक्षण द्वारा _________ का मान ज्ञात किया जाता है | उत्तर. आयरन लॉस
17. थर्मिस्टर का प्रतिरोध , तापमान वृद्धि से…….. उत्तर. घटता है
18 किसी थर्मल पावर प्लांट की दक्षता करीब……… होता है. उत्तर. 35 %
19. वैधुतिक मापक यंत्रों की कंपनी के निर्माण के लिए सबसे उपयुक्त धातु है – उत्तर. फास्फर ब्रॉन्ज़
20. एक लंबे शंट कम्पाउण्ड जेनरेटर में निर्मित वोल्टेज 400 वोल्ट है ,फील्ड शंट रेजिस्टेंस 80 ओह्म है। शंट फील्ड करंट की गणना कीजिए. उत्तर. 5.0amp
21. डी.सी. जेनरेटर की रेटिंग की जाती है. उत्तर. किलो -वाट में
22. पीक भार सयंत्र कार्यरत होते है. उत्तर. निम्न लोड गुणक पर
23. लिफ्ट में कौन -सी मोटर को तहजील देते है. उत्तर. डी. सी. सीरीज मोटर
24. ट्रांसफार्मर की दक्षता – उत्तर. 95 % से 98 %
25. किसी जनित्र में लैप वाइंडिंग स्थापित करने का कारण है.उत्तर. अधिक करंट व कम वोल्टेज प्राप्त करना
26. अक्ष के परितः मोड़ने या मरोड़ने बल आघूर्ण को कहा जाता है. उत्तर. टॉर्क
27. गीजर में फ्यूज बार बार उड़ रहा है कारण बताये – उत्तर. हीटिंग एलीमेंट का सतह से टच होना
28. कॉमन बेस ट्रांसिस्टर विन्यास का करंट गेन – उत्तर. 0.95
29. डी सी जनित्र की दक्षता – उत्तर. 85% से 95 % तक
30. जर्मेनियम डायोड की डिप्लेशन लेयर के समान्तर वोल्टेज…………. है . उत्तर. 0.3 V
31. D.C. शंट मोटर का उपयोग नीचे लिखे निम्न प्रयोगों में से किसमे होता है. उत्तर. मशीन उपकरण ड्राइव के साथ
32. एक ईधन सैल……….ऊर्जा को विघुत ऊर्जा में परिवर्तित करती है. उत्तर. रासायनिक
33. डी.सी.मोटर का बैक Emf(Eb)की गणना करने के लिए ,सूत्र क्या होगा. उत्तर. Eb=V-IaRa
34. कौन -सा नियम डी.सी.मोटर में कंडक्टर की गति की दिशा की पहचान करने के लिए लागू किया जाता है. उत्तर. फ्लेमिंग बाँए हाथ का नियम
35. एच.आर.सी. फ्यूज के फ्यूजिंग कारक क्या है – उत्तर. 1.1
36. एक विघुत हीटर 250V,1500W तथा 500 डिग्री सेंटीग्रेड C पर कार्य कर रहा है तो हीटिंग एलीमेन्ट में धारा तथा प्रतिरोध की गणना कीजिए. उत्तर. 6 Ampsऔर 41.66 Ohms
37. सुरक्षा युक्ति किसी उपकरण को ………के विरूध्द सुरक्षा प्रदान करती है.उत्तर. अतिभार , लघु -पथ , विघुत झटका
38. भारत में ऑपरेटिंग आवृति………. है. उत्तर. 50 हर्ट्ज
39 विघुत हीटर की कनेक्टिंग लीड में किस पदार्थ का इन्स्लैटिंग सामग्री प्रयोग होता है. उत्तर. पोर्सलीन पदार्थ
40. एक BOT इकाई _________ है | उत्तर. 746 वाट घण्टे
41. ट्रांसफार्मर में तेल प्रयोग करने का उद्देश्य – उत्तर. इंसुलेशन एवं शीतलन
42. एक D.C. मोटर का लोड और फलक्स अचल और प्रायोगिक वोल्टेज को 5 % बढ़ाते है जो आर्मेचर के बीच में है तो मोटर की गति होगी. उत्तर. 5 % बढ़ जाएगी
43. कण्ट्रोल सर्किट में उपयोग होने वाले कण्ट्रोल ट्रांसफार्मर का रेगुलेशन …….. से अधिक नहीं होना चाहिए | उत्तर. 5 %
44. सर्किट ब्रेकर में अधिकतम ऊर्जा जिसे फाल्ट होने पर सर्किट ब्रेकर आसानी से बाधित कर सकता है ,कहा जाता है उत्तर. रप्चरिंग क्षमता
45. एक मीटर ब्रिज में संतुलित अवस्था में I1 = 25 CM , I2 = 75 CM और ज्ञात प्रतिरोध 60 ओह्म हो तो अज्ञात प्रतिरोध का मान होगा | उत्तर. 20 ओह्म
46. डी सी जनित्र का कार्य सिद्धांत है – उत्तर. फैराडे का विधुत चुंबकीय नियम
47. एक किलो वाट घंटा (KWA) मापी यन्त्र को निम्न में से किस वर्ग में रखा जा सकता है | उत्तर. इंडिग्रेटिंग
48. डी.सी. थ्री प्वॉइंट स्टार्टर के हैंडल को चालू अवस्था में अपने पास चिपकाए रखती है. उत्तर. N.V.C.
49. बर्कहासन के अनुसार फेज -शिफ्ट का मान होता है? उत्तर. शून्य
50. जब प्राथमिक और माध्यमिक वोल्टेज एक ही वाइडिंग से प्राप्त हो रहे है उस ट्रांसफॉर्मर को कहा जाता है? उत्तर. ऑटो ट्रांसफॉर्मर
ITI ELECTRICIAN Interview Questions and Answers ::
1. Working Principle Of Rotary Kiln Under High Temperature?
The rotary kiln in the application area, the numbers to be most cement industry. The whole process of cement production line summarized as ‘two ground a burn,’ with ‘a burning,’ is made by grinding good raw material, in the high temperature of kiln under the action of the process of burning become clinker. The equipment is also widely used in metallurgical, chemical, building, refractory material, environmental protection, and other industries.
The rotary kiln under high temperature overloaded alternating slow operation, and its annex equipment maintenance and thermal rail system related to the level of control of the rotary kiln working safety and efficiency. Therefore, rotary kiln cement produces the host, commonly known as the cement factory ‘heart’.Rotary kiln cement industry forged in the main equipment burn the cement clinker. The stand or fall of sealing device directly affects the thermal rail system and run the rotary kiln capital. Strengthen rotary kiln daily maintenance data analysis of the pack; be helpful for equipment management work.
Cement kiln is used for making of cement clinker and there are dry and wet methods to make cement. Metallurgy chemical kiln is used in metallurgy industry and ironworks for lean iron ore, chromium ore and ferronickel ore calcimine. Rotary kiln is used for calcimine of high aluminum vandal ochre in refractory material industry; for calcimine of calotte and aluminum hydroxide in aluminum manufacturer; for claiming of chrome sand ore and chrome powder ore in chemical plant.Lime kiln is used for baking active lime and dolomite in the steel factory and ferroalloy factory.
Rotary kiln is the main equipment for calcining cement clinker and it can be used widely for cement industry ,metallurgy industry ,chemical industry , etc.Which can be divided into cement kiln ,metallurgy chemical kiln and lime kiln according to different materials.
2. What Is The Difference Between Fuse And Circuit Breaker?
Fuse:
A fuse has a wire that melts with the heat of a short circuit or high current and interrupts the circuit. Once melted, you have to replace it.
Circuit Breaker:
A circuit breaker interrupts the current without melting ( a pair of metal sheets with different thermal expansion coefficient, for example) and can be reset.
3. What Services Do You Provide?
We provide the following:
- Residential electrical work, central heating, cooling and air filtration
- Convenient, secure online self-scheduling for all your electrical needs
- Extended hours of operation: 7am -7pm
- Discounted member rates on labor and services
- A Home Electrical Safety Survey of all electrical systems for members.
4. What Is The Electrician?
The Electrician is a home electrical service created by The Electrician Service Co. Inc. serving homeowners, in Nassau and Suffolk Counties.
5. What Does “14-2” Mean?
This is used to describe the size and quantity of conductors in a cable. The first number specifies the gauge. The second the number of current carrying conductors in the wire – but remember there’s usually an extra ground wire. “14-2” means 14 gauge, two insulated current carrying wires, plus bare ground.
2 wire usually has a black, white and bare ground wire. Sometimes the white is red instead for 220V circuits without neutral. In the latter case, the sheath is usually red too.
3 wire usually has a black, red, white and bare ground wire. Usually carrying 220V with neutral.
6. Breakers? Ca Not I Use Fuses?
Statistics show that fuse panels have a significantly higher risk of causing a fire than breaker panels. This is usually due to the fuse being loosely screwed in, or the contacts corroding and heating up over time, or the wrong size fuse being installed, or the proverbial “replace the fuse with a penny” trick.
Since breakers are more permanently installed, and have better connection mechanisms, the risk of fire is considerably less.
Fuses are prone to explode under extremely high overload. When a fuse explodes, the metallic vapor cloud becomes a conducting path. Result? From complete meltdown of the electrical panel, melted service wiring, through fires in the electrical distribution transformer and having your house burn down.Breakers won’t do this.
7. What Does A Fuse Or Breaker Do? What Are The Differences?
Fuses and circuit breakers are designed to interrupt the power to a circuit when the current flow exceeds safe levels. For example, if your toaster shorts out, a fuse or breaker should “trip”, protecting the wiring in the walls from melting. As such, fuses and breakers are primarily intended to protect the wiring — UL or CSA approval supposedly indicates that the equipment itself won’t cause a fire.
Fuses contain a narrow strip of metal which is designed to melt (safely) when the current exceeds the rated value, there by interrupting the power to the circuit. Fuses trip relatively fast. Which can sometimes be a problem with motors which have large startup current surges. For motor circuits, you can use a “time-delay” fuse (one brand is “fusetron”) which will avoid tripping on momentary overloads. A fusetron looks like a spring-loaded fuse. A fuse can only trip once, then it must be replaced.
8. What Is A Circuit?
Inside the panel, connections are made to the incoming wires. These connections are then used to supply power to selected portions of the home.
There are three different combinations:
- one hot, one neutral, and ground: 110V circuit.
- two hots, no neutral, and ground: 220V circuit.
- two hots, neutral, and ground: 220V circuit + neutral, and/or two 110V circuits with a common neutral.
9. My House Does Not Meet Some Of These Rules And Regulations. Do I Have To Upgrade?
In general, there is no requirement to upgrade older dwellings, though there are some exceptions (ie: smoke detectors in some cases). However, any new work must be done according to the latest electrical code. Also, if you do “major” work, you may be required to upgrade certain existing portions or all of your system. Check with your local electrical inspector.
10. What Is Csa Approval?
Every electrical device or component must be certified by the Canadian Standards Association (or recognized equivalent) before it can be sold in Canada. Implicit in this is that all wiring must be done with CSA-approved materials. They perform testing similar to the UL (a bit more stringent), except that CSA (or recognized equivalent) approval is required by law.
Again, like the UL, if a fire was caused by non-CSA-approved equipment, your insurance company may not have to pay the claim.
Note: strictly speaking, there usually is a legal way around the lack of a CSA sticker. In some cases (eg: Ontario), a local hydro inspection prior to purchase, or prior to use, is acceptable. The hydro inspector will affix a “hydro sticker” to the unit, which is as good as CSA approval. But it costs money – last I knew, $75 per unit inspected.
11. What Is Ul Listing?
The UL stands for “Underwriters Laboratory”. It used to be an Insurance Industry organization, but now it is independent and non-profit. It tests electrical components and equipment for potential hazards. When something is UL-listed, that means that the UL has tested the device, and it meets their requirements for safety – ie: fire or shock hazard. It doesn’t necessarily mean that the device actually does what it’s supposed to, just that it probably won’t kill you.
The UL does not have power of law in the U.S. — you are permitted to buy and install non-UL-listed devices. However, insurance policies sometimes have clauses in them that will limit their liability in case of a claim made in response to the failure of a non-UL-listed device. Furthermore, in many situations the NEC will require that a wiring component used for a specific purpose is UL-listed for that purpose. Indirectly, this means that certain parts of your wiring must be UL-listed before an inspector will approve it and/or occupancy permits issued.
12. What Is The Nec? Where Can I Get A Copy?
The NEC is a model electrical code devised and published by the National Fire Protection Association, an insurance industry group. It’s revised every three years. The 1993 version has been released. You can buy a copy at a decent bookstore, or by calling them directly at 800-344-3555. The code exists in several versions. There’s the full text, which is fairly incomprehensible. There’s an abridged edition, which has only the sections likely to apply to most houses. And there’s the NEC Handbook, which contains the “authorized commentary” on the code, as well as the full text. That’s the recommended version. Unfortunately, there’s no handbook for the abridged edition. And the full handbook is expensive –US$65 plus shipping and handling.
13. Does The Electrician Need A Copy Of My Plans?
If you are building a new property it is helpful for the electrician to see the plans. Also discuss your personal needs so that power outlets are conveniently placed.
14. Can’t I Do The Work Myself?
It’s OK to visit the hardware shop and buy the switch you like the look of. But you need a licensed electrician to complete the work. A licensed electrician will issue a certificate to show the work complies with building standards. That way your property won’t be devalued or insurance issues crop up in the event of a problem.
15. When Do I Call An Electrician?
Whenever you have a job relating to power or wiring.
16. What About Solar Electricity?
An electrical contractor can install solar panels to your property. Excess energy collected by your solar panels is fed into the electrical grid. You receive credit for power generated on your electricity bill.
17. I Have Got Old Wiring, Can Any Electrician Handle That?
Old wiring can be dangerous. Use a licensed electrician with experience in older homes or property.
18. How Do I Know If My Electrical Installation Is Safe?
Only a qualified electrical contractor is licensed to properly test your installation for safety and issue a compliance certificate.
19. What Is A Safety Switch?
A safety switch is a device fitted to the property supply that cuts out electricity almost instantly in the event of a significant power leak or surge.
20. What Can I Do To Protect Myself From Electrical Accidents Or Injuries?
Have an electrical contractor install a safety switch or circuit breaker. Nearly all electrical accidents involving consumer products could have been prevented by one of these devices.
21. What Rules Do Electrical Contractors Have To Follow?
Electrician is a trade qualification and electrical contractors are licensed in each state. Many electricians also choose to belong to professional associations like NECA (National Electrical & Communications Association).
22. What Should I Do If I Need To Hire An Electrical Contractor?
Be sure to hire a licensed professional electrician. There a several reasons for this:
- you’ll get a better job
- work will comply with the building code
- you won’t have an insurance problems if something goes wrong.
23. How Much Does An Electrician Charge?
Most good quality electricians will provide you with a detailed quotation free. For smaller jobs, a price estimate is often available over the phone.
24. What Is An Electrical Contractor?
Electrical contractors are qualified to install and connect wiring, fixtures and appliances. They also install solar panels and other equipment for generating power.
25. Is There Any Way For Me To Spend Less For Availing Of Electrician Services?
One of the best ways to save money on electrician costs is to do some research. Find out how much electrician companies and individual electricians charge for their services. Compare quotes between different electrician service providers and determine which one is best for your budget. You can learn more tips from our “Work and Costs” section.
26. What Is The Nec?
NEC stands for National Electrical Code. Refer to our page on the NEC for more details.
27. Is An Electrician License Really That Important?
Absolutely. A valid professional license is the ultimate proof of your electrician’s qualifications. Without one, your electrician can’t assure you that he has gone through the requisite training and tests that would enable him to perform at a high standard and in accordance with the NEC. Never hire an unlicensed electrician if you’re after quality service. (Refer to our “Electrician Licensing” page for more on this.)
28. What Makes An Electrician Qualified To Do What He Does?
His years of studying, training, and gaining relevant experience. An electrician needs to complete school and spend years (or the equivalent of several thousand working hours) as an apprentice before he even becomes eligible for a license. Add the skill and experience he developed after acquiring his license, and you should be confident that he can serve you well.
29. What Kind Of Electrician Should I Hire?
Electricians have varying levels of experience and qualifications. There are apprentices, Journeyman electricians, and Master electricians.
An apprentice is still required to work under the supervision of a Journeyman and Master electrician. A Journeyman electrician has extensive knowledge of various electrical fields and can work unsupervised, but he is still not sufficiently qualified to take on electrical projects of utmost complexity. A master electrician is fully qualified to handle any electrical project. Your electrician’s experience should at least be directly proportional to the difficulty of the job you need to have done.
30. Should I Immediately Call An Electrician Or First Attempt To Do An Electrical Job Myself?
When dealing with an electrical problem, it’s best to contact a licensed professional at once. If you try to solve the problem on your own, you could jeopardize your safety as well as that of your electrical system and equipment. And though it’s not as urgent, electrical installation of any kind also merits expert assistance.
It’s likely that you don’t want to hire an electrician because of the expense, but that plan could easily backfire. Any mistakes you make may lead to damages that will only cost you more in the long run.