Civil Engineering MCQJE Level Civil Engineering
Heat calculation: Specific heat of water is 4200 J/kg-K. Heat to raise 2 kg water by 10 K is:
Physics and ChemistryPhysics and ChemistryHARD
Choose the correct answer
A
8400 J
B
84000 J
C
42000 J
D
21000 J
Correct Answer
B. 84000 J
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Q = mcΔT = 2 x 4200 x 10 = 84000 J.
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This MCQ belongs to RRB JE Civil & Allied Engineering CBT-2 Full Mock Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.