Class 2 (2nd Engineer) MEKM 📅 Apr 2025

Exam Question

(a) Describe the different types of crankshafts used in marine diesel engines. Highlight their constructional features, materials used and typical applications. (8)

(b) Compare the advantages and disadvantages of semi-built and solid forged crankshafts with respect to strength, repairability, manufacturing process and suitability for different engine sizes. (8)

Reference Answer

(a) Types of Marine Diesel Engine Crankshafts
Marine diesel engine crankshafts are categorized by their construction methods to suit varying engine sizes and power requirements.
Fully Built Crankshaft
Construction: Individual components—journals, webs, and crankpins—are manufactured separately and assembled using shrink-fitting.

Full answer on MeoMock — surveyor-grade reference answers for 7,000+ written exam questions.

View plans Browse library

← Browse more questions

Prepare on Android — MeoMock on Google Play