| 11th October 2014 01:32 PM | |
| Arvind Kumar | Re: Mahagenco sub engineer mechanical exam Old question paper This is the Mahagenco sub engineer mechanical exam Old question paper: 1. The chronological order of strokes in a four stroke petrol engine is: 1] Suction stroke, working stroke, compression stroke and exhaust stroke. 2] Suction stroke, compression stroke, working stroke and exhaust stroke. 3] Compression stroke, working stroke, suction stroke and exhaust stroke. 4] Compression stroke, suction stroke, working stroke and exhaust stroke. 2. The enthalpy of steam is defined as: 1] Difference of internal energy and product of pressure and volume. 2] Product of internal energy and pressure. 3] Sum of internal energy and product of pressure and volume. 4] Amount of heat change divided by the absolute temperature. 3. Which of the following operations can be performed using a drilling machine? A. Reaming B. Countersinking C. Spot Facing D. Thread tapping 1] Only A, B and D 2] Only B, C and D 3] Only A, B and C 4] All of these 4. Which of the following are the advantages of impulse turbine over reaction turbines? A. Occupies less space per unit power. B. Compounding is not necessary for speed reduction as the rotor speeds are usually low. C. Suitable for high power generation. 1] B and C only 2] A only 3] C only 4] A and C only Prime Concern for good quality welding are 1) Parent Material & Electrode Based on WPS 2) Impact properties required or not 3) Thickness of material & edge preparation & Procedures to over come heat buildild up 4) preheat & Post heat 5) good inter run cleaning 6) proper use of tacking and restraints and lifting procedures to avoid increase in stress 7) Proper stress releving |
| 8th October 2014 10:13 AM | |
| Unregistered | Mahagenco sub engineer mechanical exam Old question paper can you provide me the Mahagenco sub engineer mechanical exam Old question paper??????? |
