Electrical Engineering : Switchgear Protections QUESTIONS AND ANSWERS :: part3 : 11 to 15
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
11.What will be the reflection co-efficient of the wave of load connected to transmission line if surge impedance of the line is equal to load ? |
| Zero |
| Unity |
| Infinity |
| None of the above |
12.Which of the following devices will receive voltage surge first travelling on the transmission line ? |
| Lightning arresters |
| Relays |
| Step-down transformer |
| Switchgear |
13.Which of the following statements is incorrect? |
| Station batteries are used to operate relay only |
| The lightning arresters are basically surge diverters |
| An impedance relay has maximum fault current when fault occurs near the relay |
| A high speed relay has an operation of 1 to 2 cycles |
14.To reduce short circuit fault currents are used. |
| reactors |
| resistors |
| capacitors |
| none of the above |
15.Induction cup relay is operated due to changes in |
| current |
| voltage |
| impedance |
| all of the above |
More Switchgear Protections 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
Identify your problems but give your power and energy to solutions- Tony Robbins
