In self cooled motors the cooling time constant is about _____

Question

In self cooled motors the cooling time constant is about ______ than the heating time constant because cooling conditions are worse at standstill.

Options:

A . 2 to 3 times greater

B . 3 to 4 times greater

C . 4 to 5 times greater

D . none of the above

Answer: Option A

Submit Your Solution Below and Earn Points !

Next Question

More Questions on This Topic :

Question 1. The power of a n-phase circuit can be measured by using a minimum of....

Question 2. Systematic errors are....

Question 3. D.C. machines designed with a large value of air gap length have....

Question 4. _________ electromagnets generally function as holding magnets.....

Question 5. By which of the following methods motor rating for variable load drives can be determined ?....

Question 6. In direct cooled system using hydrogen both stator and rotor conductors are made....

Question 7. On which of the following variables heat convected depends ?....

Question 8. An instrument transformer is used to extend the range of....

Question 9. The value of exciting or magnetizing current depends upon which of the following factors ?....

Question 10. The voltage control in electric supply networks in required on account of which of the following reasons ?....

Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)

Direction Sense Test Part 1 Reasoning (Hindi)

Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE

Cube & Cuboid Part 1 Reasoning (Hindi)

Data Interpretation (DI) Basic Concept Reasoning (Hindi)

Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)

Sail E0 free webinar Webinars

Real Numbers Part 7 Class 10 Maths

Real Numbers Part 1 Class 10 Maths

Polynomials Part 1 Class 10 Maths

Pie Chart - Test Paper 1 Data Interpretation Reasoning & DI

Tabulation - Test Paper 2 Data Interpretation Reasoning & DI

Test Paper 1 Direction Sense Test Reasoning & DI

ICA , RDIC,GFM Free Modal Test Paper - Non - Technical Branch Old Syllabus 2022 - SAIL Junior Officer E0

GFM Combined 1 Free Revision Test SAIL JO E-0