Boiler Drawing Solved Questions from BOE Exams

Problem (Karnataka BOE 2022, Maharashtra BOE 2023, 2024, 2025, 5 marks)

Draw proportionate sketch of a steam stop valve and name the parts.

Solution

Steam Stop valve

 Problem (Maharashtra BOE 2023, 2024, 5 marks)

Draw a proportionate free hand sketch of drum internals assembly and name the parts.

Problem (Karnataka BOE 2022, Maharashtra BOE 2023, 10 marks)

Draw a neat and safety valve and proportionate free-hand sketch of name the internal parts. a spring-loaded safety valve and name the internal parts.

Solution

Spring-loaded safety valve

Problem (Assam BOE 2022, 20 marks)

Assemble the parts of the feed check valve, shown in below and draw, (i) sectional view from the front, (ii) view from the right and (iii) view from above.

Solution


Problem (Jharkhand BOE 2024, 10 marks)

Draw the symbols for the following:

(a) Steam Trap

(b) Y-type strainer

(c) Two way valve fail open

(d) Eccentric reducer

(e) Spring loaded check valve

Solution

These questions are taken from study material for  Boiler Operation Engineer Exam by amiestudycircle.com. Our study material is prepared by scholars and retired faculty from IIT, Roorkee.

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Problem (Karnataka BOE 2023, 12 marks)

Name the below given Piping and Instrumentation Diagram Valve symbols.

Solution

Problem (Karnataka BOE 2022, 10 marks)

Draw the symbols for the following types of valves

1. Butterfly valve

2. Relief valve

3. Three way valve

4. Manually operated valve

5. Gate valve

Solution 

Orthographic Projection

Problem (Chhattisgarh BOE 2021, 20 marks)

Isometric view of an object is given below. Draw front view, right side view and top view.

Solution



 

Problem (Kerala BOE 2021, 15 marks)

Isometric view of an object is shown in fig .Draw the front view and top view. Take the direction F as the front side.

Solution

 

Additional problems

Problem (Haryana BOE 2019, 20 marks)

Draw the symbols and drawing representations of following wclding/other operations: 

(i) Weld all around

(ii) Site weld (Assembly weld)

(iii) Site weld (Erection weld)

(iv) Flush Contour

(v) Convex Contour

(vi) Chipping Finish

(vii) Grinding Finish

(viii) Machining Finish

See solution in our study material

Problem (Kerala BOE 2023, 2025, 15 marks)

Draw the two views of a single riveted double strap butt joint. Take thickness of plate as 10 mm. Dimension the drawing in terms of diameter of rivet.

See solution in our study material

Problem (Maharashtra BOE 2025, 10 marks)

Draw a schematic free hand sketch of the Boiler feed water pump components.

1. Impeller

2. Casing Ring

3. Split Ring

4. Balancing Disc

5. Balancing Disc wear seat.

See solution in our study material

Problem (Kerala BOE 2025, 60 marks)

Part details of a sleeve and cotter joint is shown in figure. 

Draw:

(i) Front view top half in section as shown in the direction F.

(ii) Sectional top view of the assembly.

(iii) Side view from left.

See solution in our study material

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