when we see the lube oil grade its 15w/40 or 20w/40 in this
what is W Explain breifly



when we see the lube oil grade its 15w/40 or 20w/40 in this what is W Explain breifly..

Answer / k.prakashchandra

W -winter grade ( temp), 40 means SAE viscosity number

Is This Answer Correct ?    2 Yes 0 No

Post New Answer

More Electrical Engineering Interview Questions

when the direction of a 3phase induction motor is reversed , is there any losses increases?

5 Answers   IOCL,


what is creepage distance

2 Answers  


how system voltage affect the power factor or vice-versa.

4 Answers  


Active power= VI COS FI But incase of leading power factor ( more than unity), may we use other formula ? because the cos fi (value of cos thita) should not be grater than one.

2 Answers  


ht side line to earth voltage

0 Answers   JLL,






What will happen if primary of transformer is fed with Square wave instead of sinsoidal wave ?Will it operate or Not?

3 Answers   Areva,


what is the difference between circular wdg & ractangular wdg?

0 Answers  


If there is 25 hp motor,which type of starters we can us? why?

7 Answers  


what is the meaning of knee point in current transformer and how to calculate?

2 Answers  


Is there such a frequency as 440v 50Hz?

1 Answers  


at present how many EHVAC lines are there in India?

8 Answers   HCL, L&T,


An 8 pole, 50 Hz, 3-phase IM is loaded to a poing where pull out torque will occur. The rotor resistance per phase is 0.3 ohm and motor stalls at 650 rpm. The rotor reactance at stand still is A 2 ohm B 1.25 ohm C 3.15 ohm D 2.25 ohm

0 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)