Machine Design MCQ with Answers

Machine Design MCQ with Answers

141) A metal pipe of 1 m diameter contains a fluid having a pressure of 1 N/mm². If the permissible tensile stress in the metal is 20 N/mm², then the thickness of the metal required for making the pipe will be

Answer is:

25 mm

142) A tangent key is provided in pairs at right angles and each key is to withstand torsion in one direction only.

Answer is:

Agree

143) When the speed of belt increases,

Answer is:

the power transmitted will decrease

144) According to law of gearing, the common normal at the point of contact between a pair of teeth must always pass through the pitch point.

Answer is:

Correct

145) An involute pinion and gear are in mesh. If both have the same size of addendum, then there will be interference between the

Answer is:

tip of the gear and flank of pinion

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