The maximum contamination level advised for TDS is _______

The average pressure for the purifier is ______

Cardio-Pulmonary Resuscitation is a ………

If P = 50 watt and R = 2 ?, then I = ______

Which of the following is a semiconductor material?

Raw water TDS should not be less than …….?

PPM stands for ……….?

Which of the following tools is used for making threads?

Which of the following is type of impurity?

What is the pH value of water?