Basic Boiler Construction Exam Questions & Answers (Grade A+).docx

Basic Boiler Construction Exam
Questions & Answers (Grade A+)
Common shell and drum thickness range is


a) 2 to 12 mm
b) 6 to 250 mm
c) 15 to 300 mm
d) 100 to 1,000 mm
e) 200 to 250 mm -
correct answer ✅b) 6 to 250 mm


One or more steel plates rolled into cylindrical form and welded
together, with the ends closed by means of end plates or heads,
is called a


a) combustion chamber
b) packaged boiler
c) steam or water drum
d) steam header
e) steam space -
correct answer ✅c) steam or water drum

, Basic Boiler Construction Exam
Questions & Answers (Grade A+)
The circumferential seam of a riveted boiler shell utilized the


a) lap joint, single or double riveted
b) treble riveted butt joint
c) double equal strap double riveted butt joint
d) double unequal strap treble riveted butt joint
e) always a single riveted lap joint -
correct answer ✅a) lap joint, single or double riveted


Head-to-drum circumferential joints are usually


a) double welded butt joints
b) single welded edge joints
c) fillet welded corner joints
d) double welded tee joints
e) fillet welded lap joints -
correct answer ✅a) double welded butt joints


With regard to welding, heat treatment