Hi, i just want to ask for some questions with transistors.

1. How will i know if it is NPN or PNP?
2. when i measured the resistance of the transistor terminals using DMM set to ohms, the value of emitter-collector is 0Ω. emitter-base is 36.85 mΩ. collector-base is 37.20mΩ. are these correct?

 

1. Measure the base-emitter junction resistance. If it has a lower resistance with positive voltage applied to the base it is NPN, otherwise it is PNP.

2. The actual values you measure depend upon the meter. But an emitter-collector resistance of zero indicates a zapped transistor.

 

And just for your information the correct abreviation for Megohm is capital MΩ not lower case. Lower case mΩ is used for milliohm. Big difference. Using correct abbreviations will help you communicate more precisely.

 

My multimeter uses 200mV to measure resistance so it does not forward bias a silicon junction. It uses "diode test" to apply up to 3.5V then it shows the forward voltage, not resistance.

I think the OP is measuring a shorted transistor.