Q Bank & Answer - Electrical Engineer -Railway carriage fans

01. Air delivery of fan can be measured by [ a ]

a) anemometer 

b)ammeter 

c) lux meter 

d) none

Answer - a) anemometer 

02. When insulation resistance test is carried out on railway carriage fan it’s insulation resistance should not be less than [ c ]

a)20mega ohms 

b)10mega ohms 

c)2mega ohms

 d)none

Answer -  c)2mega ohms

03. The wattage of 110V DC 400mm sweep RC fan is [ a ]

a)32w 

b)25w 

c)19W 

d)none

Answer -  a)32w 

04. The wattage of 110V DC 300mm RC fan is [ b ]

a)32w 

b)25w 

c)19W 

d)none

Answer -  b)25w 

05. Voltage drop between battery and any of the farthest fan shall not exceed ____volts at battery voltage of 108v [ b ]

a) 5 

b) 3 

c) 1 

d) none

Answer - b) 3 

06. Codal life of RC fan is [ a ]

a) 10 years 

b)12 years

 c) 4 years 

d) none

Answer - a) 10 years 

07. Input power of 110V BLDC 400mm sweep fan of CGL make [ a ]

a)24w 

b) 38w 

c)32w 

d)none

Answer -  a)24w