Electrical Engineering : Heating And Welding QUESTIONS AND ANSWERS :: part2 : 1 to 5
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
1.In resistance heating highest working temperature is obtained from heating elements made of |
| nickel copper |
| nichrome |
| silicon carbide |
| silver |
2.Properly of low temperature co-eflficient of heating element is desired due to which of the following reasons ? |
| To avoid initial rush of current |
| To avoid change in kW rating with temperature |
| Both (a) and (b) |
| Either (a) or (b) |
3.In heating the ferromagnetic material by induction heating, heat is produced due to |
| induced current flow through the charge |
| hysteresis loss taking place below curie temperature |
| due to hysteresis loss as well as eddy current loss takingplace in the charge |
| none of the above factors |
4.Which of the following methods is used to control temperature in resistance furnaces ? |
| Variation of resistance |
| Variation of voltage |
| Periodical switching on and off of the supply |
| All of the above methods |
5.For radiant heating around 2250�C, the heating elements are made of |
| copper alloy |
| carbon |
| tungsten alloy |
| stainless steel alloy |
More Heating And Welding QUESTIONS AND ANSWERS available in next pages
-
Health is the greatest gift, contentment is the greatest wealth -Buddha
- TNTET 2021 - Practice
- SSC CGL 2021 - Practice
- TNPSC Group 2A 2021 - Practice
- IIT JEE
- IIT JEE Q&A
- TNPSC Answer Keys
- TNPSC Group 2 Syllabus
-
TNPSC Q&A
- Online Tests - TNPSC
- Online Tests - GK
- IBPS 2020-2021
- Online Tests - Bank
- Online Tests - RRB NTPC
- Online Tests - UGC NET
- Online Tests - TANCET
- Online Aptitude Test
-
Engineering
-
Programming
-
Basic Science
-
Quiz
- Plus Two Question Papers
- SSLC Question Bank
-
Aptitude Tests
-
Logical Reasoning
-
General Knowledge-Hindi
-
Indian History MCQ
-
Indian Geography MCQ
-
Indian Civics MCQ
-
Indian Economics MCQ
-
CTET Biology MCQ
-
CTET Chemistry MCQ
-
CTET Physics Solved MCQ
-
Arithmetic Tests
- Press Release
- FAQ
- Coaching Centres
- TNPSC Group 1 Syllabus
-
TNPSC Group IV Syllabus
- TRB 2017 in English PDF
- TRB 2017 in Tamil PDF
- TET
- TNTET
