Monday, October 27, 2014

BSEC Viva Questions answer

Viva Questions of BSEC

Bangladesh Steel & Engineering Corporation BSEC Viva Questions 2014 (Asstt.Engr. Mech)
                               Place: BSEC Bhavan, Karwan Bazar, Dhaka.
1. What is Economizer? How it works? 
Economizer- It is an accessories used in Boiler for raise the boiler efficiency . It works by using flue gas comes out from the boiler.
2. What is super heater and why it is used?
Super heater-  It is another accessories using in Boiler for super heated the saturated steam. It is used to superheated the steam.
3. What is the Boiling point of water at Atmospheric pressure?
Boiling point - It the condition when water turns to steam. The boiling point of water is 212 F/100 C
4. What is critical point of temperature of Water?
Critical point- The point or temperature when the water will not boil further more.
5. What is the affect of raising temperature in Boiling point of water?
The boiling temperature will increase.
6. What is corundum ? Which material  is used in Aeroplane ?
Corundum is the mine of Aluminum and Duralimin , the alloy of Al is used in Aeroplane.
7. Name some physical properties of Metal.
Metal Sound
8. What do you mean by Environmental pollution?
Carbon Emission is the main Environmental Pollution.
9. name the recent EU agreement on Carbon emission reduction.
40% reduction of Carbon Emission.
10. Translate into English- Azan Namazer thike ahban koretesi

Thursday, October 23, 2014

Engineering Materials Basic

Some definitions using in Engineering materials
Stiffness- The ability of a material to resist deformation under stress. The Modulus of Elasticity elasticity is the measures of stiffness.
Elasticity- It is the property of a material to regain its original shape after deformation when the external forces are removed. The steel is more elastic than rubber.
Ductility- It is the property of a material enabling it to be drawn into wire with the application of a tensile force. Ductile material commonly used in Engineering Practice are mild steel, copper, aluminum, nickel, zinc, tin and lead.
Brittleness- It the property of a material opposite to ductility. It is the property of breaking a material with little permanent distortion. Cast Iron (CI) is a brittle material.

Monday, October 20, 2014


Combined Cycle Power Plant: Combined Cycle Power plant is Power Plant where Steam Turbine and Gas Turbine are works together.
Schematic Diagram of Bray ton-Rankine Cycle

Definations in Power plant engineering

1. What is Load Factor?
Answer: Load factor is defined as the Average Load to the Peak load
2. What is Use factor?
Answer: Use factor is defined as the Peak load to the plant capacity
3. What is capacity factor?
Answer: Capacity Factor is defined as the Average load to the Plant Capacity, Capacity factor can be defined also as Load factor x Use factor
4. What is reverse factor?
Answer: It is defined as the Load factor to Capacity factor