Related Questions

In leaf springs, the maximum bending stress developed in the plates is (where W = Load acting on the spring, $$l$$ = Span of the spring, n = Number of plates, b = Width of plates and t = Thickness of plates)
A $$\frac{{{\text{W}}l}}{{{\text{nb}}{{\text{t}}^2}}}$$
B $$\frac{{3{\text{W}}l}}{{2{\text{nb}}{{\text{t}}^2}}}$$
C $$\frac{{2{\text{W}}l}}{{{\text{nb}}{{\text{t}}^2}}}$$
D $$\frac{{3{\text{W}}l}}{{{\text{nb}}{{\text{t}}^2}}}$$
Lap joints are preferred for plates having thickness __________ mm.
A [

A.

B. > 3

B > 5
C 5-10
In a steam engine, one method of obtaining the earlier cut-off with a simple slide valve is by increasing the angle of advance of the eccentric while the throw of the eccentric, steam lap and exhaust lap are kept constant. This method will
A Cause withdrawing or throttling of steam
B Reduce length of effective stroke of piston
C Reduce maximum opening of port to steam
D All of these
Two plates of the same metal having equal thickness are to be butt welded with electric arc. When the plate thickness changes, welding is achieved by
A Adjusting the current
B Adjusting the duration of current
C Changing the electrode size
D Changing the electrode coating
A contractor employed 30 men to do a piece of work in 38 days. After 25 days , he employed 5 men more and the work was finished one day earlier. How many days he would have been behind, if he had not employed additional men?
A 1
B 114
C 134
D 112
The correct relationship among displacement thickness d, momentum thickness m and energy thickness e is
A d > m > e
B d > e > m
C e > m > d
D e > d > m
These types of pipes are generally connected with bell and spigot joints or flanged joints:
A Soil and waste
B Water and gas
C Water and steam
D Gas and soil
The drive-shafts are connected to the differential and wheel hubs through universal joints because the universal joints
A Absorb the vibrations transferred from the surface of the road
B Compensate for variations in the relative positions of the differential and the wheels which result from bumpy road surfaces or other similar driving conditions.
C Absorb any difference in speed between the left and right wheels when the vehicle is turning
D None of the above
Number of vertical joints in a stretcher course is x times the number of joints in the header course, where x is equal to
A $$\frac{1}{2}$$
B 1
C 2
D $$\frac{1}{4}$$
When two main plates are kept in alignment butting each other and riveted with cover plate on both sides of the main plates with two rows of rivets in each main plate, the joint is known as ________ double cover butt joint.
A Single riveted
B Double riveted
C Multi riveted
D None of these

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