101) The Prime Minister of India, Narendra Modi, represents which seat in Lok Sabha?
Answer is:
Varanasi
Related RRB JE Mechanical Question Paper 2014 (Set-3) with Answer Key
Answer is:
ultraviolet as well as infrared rays
Explanation:
In arc welding, eyes need to be protected against the tiny chips of metals and from the harmful radiation of either UV or IR radiations.
Answer is:
prevent sparking during commutation
Explanation:
A carbon brush is a sliding contact used to transmit electrical current from a static to a rotating part in a motor or generator, and, as regards DC machines, ensuring a spark-free commutation.
Answer is:
Graphite
Explanation:
Lead pencils contain graphite (a form of carbon), not lead. In fact, contrary to what many people believe, lead pencils never were made with lead.