Related Questions

A locking device extensively used in automobile industry is a
A Jam nut
B Castle nut
C Sawn nut
D Ring nut
A locking device in which the bottom cylindrical portion is recessed to receive the tip of the locking set screw, is called
A Ring nut
B Castle nut
C Sawn nut
D Jam nut
What type of bearing is used for main bearings and connecting rod bearings?
A Ball bearings
B Plain bearings
C Needle roller bearing
D Taper roller bearing
Elastic nut is a locking device in which
A One small nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming
B A slot is cut partly in middle of nut and then slot reduced by tightening a screw
C Hard fibre or nylon cotter is recessed in the nut and becomes threaded as the nut is stewed on the bolt causing a tight grip
D Through slots are made at top and a cotter pin is passed through these and a hole in the bolt, and cotter pin splitted and bent in reverse direction at other end
Jam nut is a locking device in which
A One smaller nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming
B A slot is cut partly in middle of nut and then slot reduced by tightening a screw
C A hard fibre or nylon cotter is recessed in the nut and becomes threaded as the nut is screwed on the bolt causing a tight grip
D Through slots are made at top and a cotter pin is passed through these and a hole in the bolt, and cotter spitted and bent in reverse direction at other end
Split nut is a locking device in which
A One smaller nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming
B A slot is cut partly in middle of nut and then slot reduced by tightening screw
C A hard fibre or nylon cotter is recessed in the nut and becomes threaded as the nut is screwed on the bolt causing a tight grip
D Through slots are made at top and a cotter pin is passed through these and a hole in the bolt, and cotter pin splitted and bent in reverse direction at the other end
Castle nut is a locking device in which
A One smaller nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming
B A slot is cut partly is middle of nut and then slot reduced by tightening a screw
C A hard fibre or nylon cotter is recessed in the nut and becomes threaded as the nut is screwed on the bolt causing a tight grip
D Through slots are made at top and a cotter pin is passed through these and a hole in the bolt, and cotter pin spitted and bent in reverse direction at other end
Which of the following formula is used in designing a connecting rod?
A Euler's formula
B Rankine's formula
C Johnson's straight line formula
D Johnson's parabolic formula
Which of the following cotter joint will be used to connect strap end of a connecting rod?
A Spigot and socket cotter joint
B Sleeve and cotter joint
C Gib and cotter joint
D Any one of these
The primary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given by (where m = Mass of reciprocating parts, $$\omega $$ = Angular speed of crank, r = Radius of crank, $$\theta $$ = Angle of inclination of crank with the line of stroke and n = Ratio of the length of connecting rod to radius of crank)
A $${\text{m}}{\omega ^2}{\text{r}}\sin \theta $$
B $${\text{m}}{\omega ^2}{\text{r}}\cos \theta $$
C $${\text{m}}{\omega ^2}{\text{r}}\frac{{\sin 2\theta }}{{\text{n}}}$$
D $${\text{m}}{\omega ^2}{\text{r}}\frac{{\cos2\theta }}{{\text{n}}}$$

Next steps