Thursday 22 September 2022

BHEL Engineer Trainee (Mechanical) - Online Classes starts from 23rd September in Sparks Academy !

BHEL Engineer Trainee (Mechanical) 2022 - Online Course



BHEL Engineer Trainee Mechanical online course.
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💥Sparks Academy 💥

🎯 Features of Online Course:

1. Recorded Videos for Mech, GS & English
2. Online Live sessions for Reasoning & Question paper discussion.
3. Unlimited Streaming...
4. Subscription validity - 6 months
5. Course Duration : Untill Exam 
6. 300+ Videos Available..
7. Online Test Series included
8. Mech Books will be sent
9. Target Oriented Coaching.
10. Subjects Handled by experienced faculties.

Subjects Covered:

1. Mechanical Engineering 
2. Reasoning
3. General Studies
4. English.


To Join the Course: Click Here

For More details visit our website:


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81908 79379

BHEL Engineer Trainee Notification - Full details in Tamil



BHEL Engineer Trainee Exam Pattern & Cut off Mark - Full details in Tamil




Wednesday 21 September 2022

TNPSC Surveyor & Draughtsman Online Test Series Offer !

TNPSC Surveyor & Draughtsman Online Test Series Offer !


To Join

Chat on WhatsApp: Click Here

Field Surveyor Mock Test: Click Here


Online Video Course Also Available


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Monday 19 September 2022

BHEL Engineer Trainee Notification Released ! Civil and Mechanical Courses starts in Sparks Academy

 BHEL Engineer Trainee Notification Out !


Notification Link: Click Here

Last Date to Apply: 4th October 2022

Exam Pattern and Syllabus: 


Exam Pattern and Syllabus: Download


BHEL Engineer Trainee Online course and Test Series Available in Sparks Academy

1. Mechanical
2. Civil Engineering

BHEL Engineer Trainee Previous Year Questions : Soon


Sunday 18 September 2022

Welding Questions Set 2 - Production Engineering Expected Questions in exams (SSC JE, RRB JE, TNPSC AD, BHEL, HPCL, TRB)

Production Engineering - Expected Questions in exams 


(SSC JE, RRB JE, TNPSC AD, BHEL, HPCL, TRB Polytechnic Lecturer / Asst. Prof)


Welding - Set 2


1.     The maximum flame temperature occurs

(a)   At the outer cone

(b)  At the inner cone

(c)   Between inner and outer cone

(d)  At the torch tip

2.     The temperature of the inner luminous cone of neutral flame is about

(a)   1000 o C

(b)  1250 o C

(c)   2100 o C

(d)  3200 o C

3.     A neutral flame is obtained by supplying

(a)  Equal volume of oxygen and acetylene

(b)  More volume of oxygen and less volume of acetylene

(c)   More volume of acetylene and less volume of oxygen

(d)  None of the above

4.     Neutral flame used is used to weld

(a)   Steel

(b)  Cast iron

(c)   Copper

(d)  All of these

5.     Linde welding uses

(a)   Neutral flame and left ward technique

(b)  Oxidizing flame and left ward technique

(c)   Carburizing flame and right ward technique

(d)  Neutral flame and left ward technique

6.     The flux commonly used in brazing

(a)   Zinc chloride

(b)  Ammonium chloride

(c)   Rosin plus alcohol

(d)  Borax

7.     Galvanizing is a

(a)   Zinc diffusion process

(b)  Process of coating zinc by hot dipping

(c)   Process used for making thin phosphate coating on steel

(d)  None of the above

8.     Which welding process uses a consumable electrode

(a)   Laser welding

(b)  Thermit welding

(c)   TIG welding

(d)  MIG welding

9.     Which of the following is an example of semi-automatic welding process

(a)   TIG welding

(b)  MIG welding

(c)  Submerged arc welding (SAW)

(d)  Resistance welding

10.  Filler materials used in

(a)   Spot welding

(b)  Projection welding

(c)   Gas welding

(d)  Seam welding

11.  In Arc welding , the arc length should be approximately equal to:

(a)  Diameter of electrode rod

(b)  One and a half time the diameter of electrode

(c)   Twice the diameter of electrode

(d)  Half the diameter of the electrode rod

12.  The soldering process is carried out in the temperature range

(a)   15 - 60 o C

(b)  70 - 150 o C

(c)   180 – 250 o C

(d)  300 – 500 o C

13.  In Thermit welding Aluminium and iron oxide are mixed in the proportion of

(a)  1 : 3

(b)  1 : 2

(c)   1 : 1

(d)  2 : 1

14.  Which of the example of solid state welding?

(a)   Gas welding

(b)  Arc welding

(c)   Thermit welding

(d) Forge welding

(e)   

15.  In arc welding temperature generated is of the order of

(a)   8000 o C

(b)  1000 o C

(c)   3500 o C

(d)  5500 o C

16.  The most commonly used flame in gas welding is

(a)  Neutral

(b)  Oxidizing

(c)   Carburizing

(d)  Only C

17.  Magnetic arc blow is

(a)   A recent welding technique

(b)  Used to weld material

(c)   Occurs when welding near equator

(d)  Phenomenon of occurrence of splatter because of magnetic fields created in d.c arc welding

18.  Preheating is essential in welding

(a)   High speed steel

(b)  Stainless steel

(c)   Cast iron

(d)  German silver

19.  In arc welding operations the current value is decided by

(a)   Thickness of plate

(b)  Length of weld portion

(c)   Voltage across the arc

(d)  Size of the electrode

20.  Pick up the incorrect statement about MIG welding

(a)  No flux required

(b)  High welding speed

(c)   Increased corrosion resistance

(d) Even unclean surface can be weld to obtain sound weld


Courses & Test Series Available for

Mechanical Engineering - SSC JE, RRB JE, BHEL, HPCL, TRB Polytechnic Lecturer, TRB A.P, TNPSC AD, 

To Join / for more details: Call 8190879379

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Welding Questions Set 1 - Production Engineering Expected Questions in exams (SSC JE, RRB JE, TNPSC AD, BHEL, HPCL, TRB)

 Production Engineering - Expected Questions in exams 

(SSC JE, RRB JE, TNPSC AD, BHEL, HPCL, TRB Polytechnic Lecturer / Asst. Prof)

Welding - Set 1

1.     In resistance welding pressure is released

(a)   Just all the time of passing the current

(b)  After completion of current

(c)   After the weld cools

(d)  During heating period

2.     Oxygen to acetylene ratio in case of oxidizing flame is

(a)   1 : 1

(b)  1.2 : 1

(c)   1.5 : 1

(d)  2 : 1

3.     The used for coating the electrode is called

(a)   Protective layer

(b)  Binder

(c)   Slag

(d)  Flux

4.     Which of the following is not a welding accessory?

(a)  Cable

(b)  Electrode holder

(c)   Hand screen

(d)  Gloves

5.     The transformer used for AC welding sets is:

(a)   Booster type

(b)  Step up type

(c)   Step down type

(d)  Equal turn ratio type

6.     In arc welding, arc is created between the electrode and work by

(a)   Flow of current

(b)  Voltage

(c)   Material thickness

(d)  Contact resistance

7.     The phenomenon of weld decay occurs in:

(a)   Cast Iron

(b)  Brass

(c)   Bronze

(d)  Stainless steel

8.     In electric resistance welding, pressure applied varies from

(a)   1 to 5 Mpa

(b)  5 to 10 Mpa

(c)   10 to 25 Mpa

(d)  25 to 55 Mpa

9.     Seam welding is a

(a)  Continuous spot welding process

(b)   Multi-spot welding process

(c)   Arc welding process

(d)  Process used for joining round bars

10.  Projection welding is a

(a)   Continuous spot welding process

(b)  Arc welding process

(e)   Multi-spot welding process

(c)   Process used for joining round bars

11.  In arc welding, the temperature of heat produced by the electric arc is of the order of

(a)   3000 o C to 4000 o C

(b)  4000 o C to 5000 o C

(c)  5000 o C to 6000 o C

(d)  6000 o C to 7000 o C

12.  In shielded arc welding

(a)   Large electrode is used

(b)  Welding rod coated with slag is used

(c)   Welding rod coated with fluxing material used

(d)  None of the above

13.  Which of the following welding method uses a pool of molten metal?

(a)   Carbon arc welding

(b)  Submerged arc welding

(c)   TIG welding

(d)  MIG welding

14.  In welding copper alloys with TIG arc welding

(a)  Direct current with straight polarity used

(b)  Direct current with reverse polarity used

(c)   Alternating current used

(d) Any one of these

(e)   

15. Which of the following welding process uses non-consumable electrodes?

(a)  TIG welding

(b)  MIG welding

(c)   Manual arc welding

(d)  Submerged arc welding

16.   Thermit, used in thermit welding , is a mixture of

(a)   Charcoal ang iron oxide

(b)  Charcoal and Aluminium

(c)   Iron oxide and Aluminium

(d)  Charcoal, iron oxide and Aluminium

17.   Thermit welding is often used in

(a)   Replacing broken gear tooth

(b)  Repairing broken shears

(c)   Joining rails, truck frames and locomotive frames etc.

(d)  All of the above

18.  Electron beam welding can be carried out in

(a)   Open air

(b)  A shielded gas environment

(c)   Vacuum

(d)  A pressurized inert gas chamber

19.  The oxy-acetylene gas is used in gas welding produce a flame temperature of

(a)   1800 o C

(b)  2100 o C

(c)   2400 o C

(d)  3200 o C

20.  For gas welding , the pressure desired at the welding torch for acetylene is

(a)  7 to 103 KN/m2

(b)  70 to 280 KN/m2

(c)   280 to 560 KN/m2

(d)  560 to 840 KN/m2


Courses & Test Series Available for

Mechanical Engineering - SSC JE, RRB JE, BHEL, HPCL, TRB Polytechnic Lecturer, TRB A.P, TNPSC AD, 

To Join / for more details: Call 8190879379

>> Chat on WhatsApp <<