A long helical spring having a spring stiffness of 12 kN/m and number of turns 20, breaks into two parts with number of turns 10 each in both the parts. If the two parts are connected in series, then the softness of the resultant spring will be

Machine Design
A long helical spring having a spring stiffness of 12 kN/m and number of turns 20, breaks into two parts with number of turns 10 each in both the parts. If the two parts are connected in series, then the softness of the resultant spring will be

30 kN/m

12 kN/m

24 kN/m

6 kN/m

30 kN/m

12 kN/m

24 kN/m

6 kN/m

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Machine Design
The strap end of a connecting rod of steam engine is joined by

Knuckle joint

Spigot socket cotter joint

Gib of cotter joint

Sleeve and cotter joint

Knuckle joint

Spigot socket cotter joint

Gib of cotter joint

Sleeve and cotter joint

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Machine Design
A connecting rod subjected to an axial load may buckle with

Y-axis as neutral axis

X-axis or Y-axis as neutral axis

X-axis as neutral axis

Z-axis

Y-axis as neutral axis

X-axis or Y-axis as neutral axis

X-axis as neutral axis

Z-axis

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Machine Design
When two springs are in series (having stiffness K), the equivalent stiffness will be

K/4

2K

K/2

K

K/4

2K

K/2

K

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Machine Design
A bolt

Has head at one end and other end fits into a tapped hole in the other part to be joined

Has both the ends threaded

Is provided with pointed threads

Has a head on one end and a nut fitted to the other

Has head at one end and other end fits into a tapped hole in the other part to be joined

Has both the ends threaded

Is provided with pointed threads

Has a head on one end and a nut fitted to the other

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Machine Design
For tight leakage joints, following type of thread is best suited

Metric

Square

Buttress

NPT (national pipe threads).

Metric

Square

Buttress

NPT (national pipe threads).

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Machine Design

Machine Design A long helical spring having a spring stiffness of 12 kN/m and number of turns 20, breaks into two parts with number of turns 10 each in both the parts. If the two parts are connected in series, then the softness of the resultant spring will be

Machine Design The strap end of a connecting rod of steam engine is joined by

Machine Design A connecting rod subjected to an axial load may buckle with

Machine Design When two springs are in series (having stiffness K), the equivalent stiffness will be

Machine Design A bolt

Machine Design For tight leakage joints, following type of thread is best suited

Machine Design
A long helical spring having a spring stiffness of 12 kN/m and number of turns 20, breaks into two parts with number of turns 10 each in both the parts. If the two parts are connected in series, then the softness of the resultant spring will be

Machine Design
The strap end of a connecting rod of steam engine is joined by

Machine Design
A connecting rod subjected to an axial load may buckle with

Machine Design
When two springs are in series (having stiffness K), the equivalent stiffness will be

Machine Design
A bolt

Machine Design
For tight leakage joints, following type of thread is best suited