Mechanical Engineer Job Interview Questions-2022

Mechanical Engineering is one of the branch of engineering which deals with machinery equipment's, robotics, automobile, heat transfer, fluid dynamics, management, design of machines, and many more industrial solutions. Let us have a look of a recent Job Interview Questions for a Mechanical Engineer in a renowned Manufacturing company :

1) Why four stroke Engine is better than a two stroke engine?

2) What is Brake Horse Power?

3) What is global warming and how it is affecting our environment?

4) Write four significant functions of Lubricating Oil.

5) Write 5 types of welding joint used in industries.

6) Write some Engine parts (Minimum five).

#Collected.

Job Interview Questions of Maintenance Engineer

A mechanical Engineer interviewed  for a plant Manager post in a Edible Oil plant (Soybean and Mustard Oil) is compiled . Plant manager from mechanical Engineering background is always preferred by the employer.   

1. Describe yourself.

2. Briefly describe mustard oil processing.

3. What is the function of expeller and ghani

4. How many manpower is required for mustard oil processing?

5. Why we don't need to import raw mustard oil?

6. What is the  function of a manager in mustard oil processing

7. Briefly describe soybean oil processing

8. What is the function of separator in Soybean oil processing 

9. What is the function of bleaching section

10. What is the function of de-odoriser?

11. Describe pump oil processing

12. Describe briefly about sugar refinery process

13. What types of general mechanical maintenance required in sugar refinery?

14. What types of  spare parts required for sugar refinery plant?

15. Tell us about different types of bearing

16. What is difference between cost cutting and cost minimizing?

17. What is function of good manager

18. What is RBD?

Maintenance Engineer Job Interview Questions

 A renowned Electronics Company Maintenance Engineer Job Interview questions:

1) Write down boiler mountings and accessories. Differentiate between fire and water tube boiler.

2) Differentiate hydraulics and pneumatic.  Name some hydraulic oil grades.

3) Draw working principle of Nitrogen generator and briefly explain.

4) Draw working principle of a Chiller and briefly explain.

5) What is TPM and 5 S. Mention the pillars of TPM

6) Differentiate Torque and Power. What is mean by Gear Ratio.

7) Write down the importance of Cooling tower maintenance in a manufacturing plant.

8) What are the compressors type? Distinguish between single and Multi-stage compressor.

9) Write different types of bearings application in industrial sectors.

10) Can we use lube oil in hydraulic system. Explain.

11) Write down the law of blower CFM. write Duct size calculation .

12) Write down the safety precautions of maintenance.

13) What is GANGG chart? Write maintenance department SOP.

We are coming with Mechanical Engineering job preparations materials, CV writing , Job placement consulting and many more. Stay with us and keep watching our facebook page posts.

PDB SUB ASSISTANT ENGINEER (CIVIL) QUESTIONS-2018

Bangladesh Power Development Board (BPDB) is an organisation under the Ministry of Power,  Energy and Mineral Resources, Government of the People's Republic of Bangladesh. The main function of BPDB is Power Generation, Power (Electricity) distribution and power development etc . Engineer Md. Belayet Hossaon is the Chief Engineer of the organisation. The organisation  . 

BPDB SUB ASSISTANT ENGINEER (CIVIL) QUESTIONS

PLEASE SEND GOVT. JOBS QUESTIONS TO - smbcuet@yahoo.com

EGCB viva Questions

First all they asked me tell me a famous person whose name harun and also his wife name than home dist………

1. Did you visit power plant? ccpt(combined cycle power plant) . What’s type of cycle use in ccpt?(jule $ rankine cycle)

2. Another name of joule cycle? (Brayton cycle) draw p-v diagram of a joule cycle?           

3. What are cavitations? What happen when it occur?

4. Why use lubricant $ lube oil? When we should change lube oil?

5. Types of bearing?

6. What is GMT? How many times differ it from us?

7. What are your extra-curriculum activities?

Courtesy: Engr. Harun-or-Rashid

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

BREB Asstt. Director (HR) Exam Questions

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