Chemical Engineering Basics - Study Mode
[#941] Acetylene should never be conveyed through __________ pipe, as it forms an unstable compound that dissociates violently at the slightest shock.
Correct Answer
(B) Copper
[#942] The thermal efficiency of a heat engine giving an output of 4 KW with an input of 10000 Joules/sec is __________ percent.
Correct Answer
(A) 40
[#943] Hardness & tensile strength of austenitic stainless steel can be increased by
Correct Answer
(B) Cold working
[#944] In troposphere (the weather domain), the temperature 't' at height 'h' above the sea level in metres is given by (where, temperature at sea level is 15°C and t is in °C.)
Correct Answer
(A) T = 15 - 0.0065 h
[#945] Half life of a radioactive isotope corresponds to the time required for half of the __________ to decay.
Correct Answer
(A) Atoms