16) A composite shaft consisting of two stepped portions having spring constants k1 and k2 is held between two rigid supports at the ends. Its equivalent spring constant is
Answer is:
(k1+k2)
Related ISRO Technician-B Fitter Question Paper - 2016 (Set - 3) with Answer Key
Answer is:
Thick cylindrical shells
Explanation:
If the thickness of the wall of a shell is greater than 1/10 of its diameter, it is known as thick shell.
The thick shells are, generally, used to withstand high pressures. Sometimes, even, compound thick shells are used to withstand very high pressures or to contain chemicals under high pressure.
The problem of thick cylinders is, somewhat, complex and is solved by Lame's theory.
Answer is:
Acme
Explanation:
Acme thread is trapezoidal thread.
