BPDB Assistant Engineer Viva Questions-2022

 BPDB Assistant Engineer Viva Questions-2022

Bangladesh Power Development Board (BPDB) is the country's power operating agency under the Power division under the Ministry of Power, Energy and Mineral resources. There are many distributions and generation companies are available under BPDB; they are like DESCO, REB, PGCB, DPDC, APSCL, EGCB, WZPDCL, NWPGL, NESCO, RPCL Etc. Installed capacity of BPDB power plants as on september-22:

 A recent viva questions of an Assistant Engineer (Mechanical ) are:-

VIVA Questions:

1) Introduce yourself.

2) What are the boiler efficiencies?

3) What is the difference between a natural gas power plant and Coal power plant  chimney?

4) What are the effects of sulfur to the environment ( at Exhaust gas emission) ?

5) What is the function of a condenser?

6)What types of boiler is Locomotive Boiler?

7) Name some renewable energy resources.

For VIVA Preparations Mechanical Engineering Viva Preparations will be useful.

Nuclear Power Plant -Senior Assistant Manager (Tech) Exam Viva Questions

 Nuclear Power Plant -Senior Assistant Manager (Tech) Exam Viva Questions

The first Nuclear Power Plant of Bangladesh is Roopur Nuclear Power Plant. It is constructed at Roopur, Adjoins Paksey in the Iswardi Upazilla of Pabna District. To construct and operation of the plant management recruitment is going on. Senior Assistant Manager (Inspection and Violation Investigation) Exam Viva Questions are collected and given here.

Viva Questions:

1) What is your job responsibility at the current Job?

2) Difference between nuclear fission and nuclear fusion?

3) What is Critical Speed? How can we measures critical speed?

4) What is oil contamination in water?

5) Difference between water turbine and steam turbine.

6) Why you want to work at Nuclear Power Plant?

7) What is the job responsibility of Senior Assistant Manager (Inspection and violation investigation)?

8) Has there any accident occurs in your company?

#Collected

RAMPAL POWER Plant Assistant Manager (Mech) Viva Questions

 RAMPAL POWER Plant Assistant Manager (Mech) Viva Questions

Bangladesh India Friendship Power Plant Company Limited (BIFPCL) is a Maitree Super Thermal Power Project (1320 x 2) which is situated in Rampal Upazilla of Bagerhat, Khulna Division.  Recent Assistant Manager (Mechanical) viva Questions is given for future job seekers.

General Questions:

1) Name the world most biggest book fair and where it is located?

2) What is the full form of SDG? Tell some points of SDG. Who will implemented the SDG?

3) Which Country give statue of Liberty to America?

4) Tell Something about your home district. 

Departmental Questions:

1) How knocking/detonation is measured in Engine?

2) Why reheating is used in Steam?

3) Name commonly used of some 2-stroke and 4-stroke petrol engine vehicle.

4) What is diesel indexing?

5) At two stroke engine often how much degree of sparking will occur?

#collected

RPCL Written Exam Question -2019

RPCL Written Exam Question -2019 

Post: Assistant Engineer (Mechanical)
Exam: 05.07.2019
Exam Venue : MIST, Dhaka.

RPCL stands for Rural Power Company Limited is an autonomous Bangladeshi government company which produces power. There are many power plants under RPCl are like Mymensingh power station, Gazipur 52MW duel fuel power plant, Gazipur 102 MW duel fuel power plant and Raozan 25 MW HFO power plant. The basic Salary for Assistant Engineer ( Pay Grade-8) are 52,000 BDT. Qualifications required for this post are Bachelor Degree in Engineering from any reputed institution/university. Age Limit is 30. Some questions of RPCL Assistant Engineer (Mechanical) are collected and compiled. 

Written Questions: 

Some other Questions of RPCL exam are:-

What is Octane Number?

What is Boiler?

What is Cetane Number? 

What is Newtonian and Non-Newtonian fluid? 

Differentiate fire tube and water tube boiler. 

Write down the viscosity in MLT and derive the unit in MKS, CGS, and SI System. 

What is COP and Ton of refrigeration? 

Why Flywheel is an essential part of the engine? 

Write down the four laws of Thermodynamics. 

What is stress and strain? 

Draw the stress-strain curve for Non-Newtonian alloys 

What is volumetric efficiency? 

What’s the Meaning of SOHC, VVTI, VTEC, ABS? 

Differentiate between Closed, Open and Isolated System. 

What is knocking in I.C. Engine? What is the effect of Knocking?  

North West Power Generation Company Assistant Engineer Circular

North West Power Generation Company ( NWPGCL)  is a state owned power generation company in Bangladesh.

Project of NWPGCL-

Sirajganj 225 MW Combined Cycle Power Plant, 

Khulna 225 MW Combined Cycle Power Plant

and 

Bheramara 410 MW combined cycle Power plant development project.

Total installed capacity of these four power plants is 1074 MW.

Recently  North West Power Generation Company ( NWPGCL) has circulated a circular for the post of Assistant Engineer. Total 16 Posts , Mech-08, Elec-08. 

The Circular link - North West Power Generation Company Assistant Engineer Circular

For written test exam one's can follow the questions- 

Exam Questions for Engineers 

Engineering Job Questions 

Govt. Job Preparation: BADC Exam

Govt. Job Preparation: BADC Exam

GTCL Questions for Mechanical Engineering 2018

GTCL Civil Engineering Questions-2016

Gas Transmission Company Limited (GTCL)  is an Organisation of Petrobangla under the Ministry of Energy, Resources and Mineral. There are other organisations like GTCL under the ministry (GOVT. ENERGY AND MINERAL RESOURCES COMPANIES , BANGLADESH)   

GTCL Civil Engineering Questions

Job Questions (Part-I) for Mechanical Engineer

Mechanical Engineering Jobs Questions with answers:-

যন্ত্র প্রকৌশলী হিসেবে বিভিন্ন সরকারী চাকুরীর লিখিত পরীক্ষার উত্তরসহ কিছু প্রশ্নাবলীঃ 

01. Write down about Jigs. ( Bangladesh Bank -12, AD)

Answer: Jigs are used for holding and guiding the tool in drilling, reaming or tapping operations.

02. Write down about fixtures. ( Bangladesh Bank -12, AD)

Answer: Fixtures are used for holding the work in milling, grinding, planning or turning operations.

03. What is Newtonian Fluid? ( RPCL-13, AM)

Answer: A fluid whose viscosity does not change with the rate of deformation or shear strain is known as Newtonian fluid.

04. Write down the lathe operation. ( Bangladesh Bank -12, AD)

Answer: Operations which can be carried out on a lathe are as follows-

               Knurling, Threading, Boring, Chamfering, Taper turning, Plain turning, Step turning

05. What is the composition of Babbit metal? (Asuganj Power Station, AE)

Answer: A tin base alloy containing 88% tin, 8% antimony and 4% copper is called Babbit metal.

06. Define Co-efficient of contraction. ( Bangladesh Bank -12, AD)

Answer: It is defined as the ratio of area of jet at Vena Contracta (a_c) to the area of orifice (a).

07. Define of Co-efficient of velocity. ( Bangladesh Bank -12, AD)

Answer: It is defined as the ratio of the actual velocity of the jet at vena contracta.

08. What is cavitation? ( Bangladesh Bank -12, AD)

Answer: The formation, growth and collapse of vapor filled cavities or bubbles in a flowing liquid due to local fall in fluid pressure are called cavitation.

09. Write down some refrigerants name.

Answer: List of refrigerants are mostly used-

a) R-11 (CCl₃F) : Boiling Point 23.77⁰C

b) R-12  (CCl₂F₂): Boiling Pint -29⁰C

c) R-22 (CHClF₂): Boiling Point -41⁰C

d) Ammonia (NH₃): Boiling Point -33.33⁰C

10. What is system?  (Bangladesh Bank -13, AD)

Answer: The thermodynamic system may be defined as a definite area or space where some thermodynamic process takes place. The thermodynamic system may be classified into the following three groups.

o: Closed System

o: Open System

o: Isolated System

11. What is Cetane Number?

Answer: The percentage by volume of cetane in a mixture of cetane & α-methyl naphthalene which has the same ignition delay as the given fuel when tested in a specified test engine under specified condition is as cetane number. e.g. If a fuel has cetane number 45, it means that the fuel is having the same ignition delay as a mixture of 45% cetane and 55% α-methyl naphthalene by volume.

 12. Comparison between petrol Engine and Diesel Engine. (BRTA-12, AD)

Petrol Engine	Diesel Engine
A Petrol Engine draws a mixture of petrol and air during suction stroke.	A Diesel Engine only draws air during suction stroke.
The pressure at the end of compression is 10 bar.	The pressure at the end of compression is 35 bar.
The combustion of fuel takes place approximately at constant volume.	The combustion of fuel takes place approximately at constant pressure.
A Petrol Engine compression ratio approximately.	A diesel Engine compression ratio approximately from 15 to 25.
The thermal efficiency is upto about 26%.	The thermal efficiency is upto about 40%.

13. For a small scale industry, the fixed cost per month is Tk. 500 The variable cost per product is Tk. 20 and sell price is Tk. 30 per price. The Break even production per month? (BOF, AE)

Answer:

X= Break even Production per month

5000 + 20X = 30 X

X= 500

14.  What are Boiler mountings? Write down their name. (Bangladesh Bank-13, AD)

Answer: These are the fittings, which are mounted on the boiler for its proper and safe functioning.

Water level Indicator, Pressure Gauge, Safety valves, Steam stop valve, Blow-off-Cock, Fusible plug.

15. What is stiffness of a spring? (PDB-12, Asuganj -13, AE)

Answer: Load required producing a unit deflection in a spring. 

More topics about Government Job written Exam-
MECHANICAL ENGINEERING MATHEMATICAL SOLUTION 
BREB ASSISTANT ENGINEER (MECHANICAL) QUESTIONS 
TITAS GAS CIVIL ENGINEERING QUESTIONS 
DPDC CIVIL ENGINEERING QUESTIONS 
BANGLADESH ORDINANCE FACTORY JOB QUESTIONS

Mathematical Solutions (ME)

Mechanical Engineering Mathematical Solutions 

 

BREB Assitant Engineer (Mechanical) questions

Bangladesh Rural Electrification Board (BREB) 

Post: Assistant Engineer (Mechanical)

22) Carbide tipped tools usually have

a) Negative rank angle

b) Positive rank angle

c) Any rake angle

d) No rake angle

23) The type of tool used on lathe, shaper and planer is -

a) Single point cutting tool

b) Two point cutting tool

c) Three point cutting tool

d) Multi point cutting tool

24) The process extensively used for making bolts and nuts is

a) Hot piercing

b) Extrusion

c) Cold peering

d) Cold heading

25) Cold working of metal increases

a) Tensile strength

b) Yield strength

c) Hardness

d) All of above

26) Ball bearings are, usually made from

a) Low carbon steel

b) High Carbon steel

c) High speed steel

d) All of the above

27) Cast Iron has

a) High compressive strength

b) Good wear resistance

c) Excellent machinability

28) The Property of a material which enables it to retain the deformation permeability is called

a) Brittleness

b) Ductility

c) Plasticity

d) Malleability

29) The size of gear is usually specified by

a) Pressure angle

b) Pitch Circle diameter

c) Circular Pitch

d) Tooth thickness

30) A spring is used to

a) Measure forces

b) Apply forces

c) Store energy

d) All of the above

31) An universal coupling is used to connect two shafts

a) Which are perfectly aligned

b) Which are not in exact alignment

c) Have lateral misalignment

d) Whose axes intersect at a small angle

32) The material generally used for air-craft components is

a) Mild steel

b) High Speed steel

c) Stainless Steel

d) Aluminum

33 ) The property of a material which enable it to be drawn into the wire with the application of a tensile force, is called

a) Plasticity

b) Elasticity

c) Ductility

d) Malleability

34) The power from the engine to the rear axle of an automobile is transmitted by

a) Worm and worm wheel

b) Super gears

c) Bevel gears

d) Hook’s joint

35) In Mechanical refrigeration system, the refrigerant has the maximum temperature

a) In evaporator

b) Before expansion valve

c) Between compressor and condenser

d) Between condenser and evaporator

36) The amount of radiation mainly depends upon the

a) Nature of the body

b) Temperature of the body

c) Type of surface of the body

d) All of the above

TITAS Civil Engineering Exam Questions

 Titas Gas Transmission and Distribution Company Ltd.

Exam. Date: 19/12/2014

Civil Engineering, Section- A, Total Marks (70)

Venue: MIST

 Answer All Ten questions.

Q.1.   What is cement? Under which condition and requirements cement is superior to
lime.	(7)
Q.2.    a. Write four physical and four mechanical properties of engineering meterials.	(4)
b. What is slum? Draw a slum cone with dimentions.	(3)
Q.3.   As shown in figure below, in the truss, F= 60 Tons and θ = 250 . Find the external	(7)
Reactions (Components at C) and the force member AB and AD.

 

 

Q.4

	a. Define Evaporation, Evapotranspiration and Sodium Adsorption Ratio (SAR)	(4)
	b. Define BOD. Why COD value is higher than BOD?	(3)
Q.5.	Differentiate between:	(7)
	a. Zenith And Nadir
	b. Segregation and Bleeding
	c. Pipe flow and Open channel flow
	d. Duty and Delta of the Crop
Q.6.	Write Short Note:	(7)
	a. Parallux Error
	b. Traverse Surveying
	c. Curb
	d. Flocculation
Q.7.	Explain the following:	(7)
	a. Buckling of Column
	b. Admixure
	c. Development length of reinforcement bar
	d. TMT 500 steel bar

Q.8.   a. Draw qualitative diagram of given size distribution curve and also show the

		(4.5)
Following curve.
1)	Gap Graded
2)	Well Graded
3)	Poorly Graded
b. According to the unified soil classification system specify the meaning of the		(2.5)
following types of soil:
1)	CL
2)	MH
3)	SP
4)	OL
5)	PT