Master official Physical Research Laboratory (PRL), Ahmedabad Technician 'B' (Electrician) recruitment examination questions across Basic Electrical Principles & Circuit Laws, Magnetism & Inductance, AC Fundamentals & Polyphase Circuits, Substation Transformers, High-Precision Servo Drives & Stepper Motors for Astronomical Telescopes, Cryocooler Compressor Motor Drives, Laboratory Online UPS & VRLA Battery Banks, Dedicated Low-Noise Clean Instrumentation Earthing (<0.5Ω), Power Cabling & Cleanroom Electrical Distribution, Electrical Measuring Instruments, and Laboratory Safety Standards.
Marking pattern: +1.00 / +3.00 positive, -0.33 / -1.00 (1/3rd) negative marking (Official DOS / ISRO / PRL Written Test / CBT Scheme).
Which of the following gas has the highest abundance in the air?
The common salt mainly consists of:
Sound waves can not travel in:
The Earth rotates on its axis from:
The speed of light in vacuum is: