Which Surface hardening is preferrable for heating some
portion of Component? a)Surface hardening b)Flame Hardening
c)Nitriding
- 5 Answers
- 5479 Views
- Bhel, I also Faced
- E-Mail Answers
Answer Posted / sreekanth
surface hardening
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
plese send me the rrb model questions for JE mechanical
What is the mechanical advantage of a double pulley?
SIR plz send me old exam papers for RRB chennai
2. Dry saturated steam at 3.5 bar is expanded through a convergent nozzle to 2.2 bar. The exit area is 5 sq. cm. Calculate the exit velocity and mass flow rate, assuming isentropic expansion and super saturated flow. b) A cast iron cylinder head is fastened to a cylinder of 750mm bore with 12 stud bolts. The maximum pressure inside the cylinder is 3 Mpa. The stiffness of part is thrice the stiffness of the bolt. What should be the initial tightening load so that the point is leak proof at maximum pressure? Also choose a suitable bolt for the above application 2 The propeller shaft of a marine engine is to transmit 600 kW at 1200 rpm, without a significant bending. The efficiency of the propeller is 88% at 32 knots ( 1 knot = 1085 km/hr). If the slenderness ratio is less than 50 and the permissible shear stress should not exceed 65 Mpa. Determine the diameter of shaft. 3 A semi-elliptic leaf spring consists of two extra full-length leaves and six graduated length leaves, including the master leaf. Each leaf is 7.2 mm thick and 65 mm wide. The centre-to-centre distance between the two eyes is 1.3m. The leaves are pre-stressed in such a way that when the load is maximum, stress induced in all leaves are equal to 380 N/mm sq. Determine the maximum force that the spring can withstand
What is the difference between P11 & P22 pipes?
with the aid of schematic and block diagram describe the control system involved in a student passing a control system engineering examination.use standard terminologies and specify all the system component involved.
How to calculate motor bearing life - cycle (life time) (SKF bearing) how determine the capacity of refrigeration system? how we use condenser coils, compressor, capillarity,compressor how determine the capacity of refrigeration system? how we use condenser coils, compressor, capillarity,compressor what is rigging
What type of gear is the first reduction gear pinion?
Define case hardening?
I am not sure about the syllabus of the BHEl esam for the post of Engineer trainee so I want to know it and also send me model question papers
what is the use of vacuum balancing valve in CEP
on which date sail exam is held & what the criteria for this exam
Purpose of stern tube sealing
When did you decide to become and mechanical engineer and why?
Define coal
