Answer Posted / arul - mz

All have tried to near the answer....

Usually Engineers do have some logic & common sense.

1) Nuts and bolts are used for fastening to a tight a seal
properly without leak or to fasten to prevent unnecessary
vibration. For that we have to tighten based on the torque
that a bolt & nut can withstand.

So selecting the bolt for the required application reuires
the customer to specify CLASS like 4.6, 5.8 etc...

Usually class represeent the material composition of the
nut and bolt.... Greater the value specified will have
higher strength...

2) For buying a nut, any person can offord to buy a nut
also together... this is to prevent the ease of assembly...
No need to mention pitch... Only u have to mention the
class and the size like M12, M16....

In si units, one ton of refrigeration is equal to ?

1160

---

What are the important operational performance parameters in design of fuel firing equipment ?

1413

---

What is the purpose of liquid receiver IN the refrigeretion system

2355

---

What is raito of coolent level in DG

2208

---

What is a pneumatic system?

1121

---

Which pollutant is major greenhouse gas and what is its effect ?

1058

---

What are the dimensionless parameters used in forced convection?

1109

---

Which is the welding process you have carried out in workshop?

1174

---

What is gtsc technology?

2293

---

What is the different between brass and bronze ?

1116

---

please send jindal steel and power model question papers

68828

---

I am completed diploma in mechanical in 2002, i have 5year experience in materials (purchase) dept,i want to do SAP cource in MM module, i want to know can i complete SAP after diploma cource only, is it usefull to me for further Job opening.

2090

---

en 19 & en24 which one is good for pipe mill shaft

1565

---

in tpp how steam pr. decreases from steam drum to main steam line

2010

---

how gravity filling machine is designed

2391

---