Bolts in the flanged end of a pressure vessel are usually pre-tensioned, because Pre-tensioning reduces the maximum tensile stress in the bolts.
5) Bolts in the flanged end of a pressure vessel are usually pre-tensioned. Indicate which of the following statements is not true :
Answer is:
Pre-tensioning reduces the maximum tensile stress in the bolts
Explanation:
KPSC Water Resource Department Assistant Engineer Mechanical Question Paper 2017 with Answer Key
For more MCQ's Click HereRelated KPSC Water Resource Department Assistant Engineer Mechanical Question Paper 2017 with Answer Key
Answer is:
A and D only
Answer is:
A only
Explanation:
The Hartung Governor is spring controlled load governor categorised under the centrifugal governors. Hartung Governor is also working the same as the Hartnell governor instead of the spring load on the sleeve, spring load on the fly balls.
Answer is:
To raise the bow and lower the stern
Explanation:
The rotor of a ship rotates in clockwise direction when viewed from stern and the ship takes a left turn. The effect of gyroscopic couple acting on it will be to raise the bow and lower the stern.
The rotor of a ship rotates in clockwise direction when viewed from stern and the ship takes a right turn. The effect of gyroscopic couple acting on it will be to raise the stern and lower the bow.
Answer is:
Both A and R are true and R is not the correct explanation of A
Explanation:
A cotter joint is used to connect rigidly two co-axial rods or bars which are subjected to axial tensile or compressive forces. It is a temporary fastening.
A cotter is a flat wedge shaped piece of rectangular cross section and its width is tapered (either on one side or on both sides) from one end to another for an easy adjustment.
