4 strokes engine have a lower thermal efficiency than 2 stroke engine.

Related MCQs

• Calculate the work done per minute by a punch tool making 20 working strokes per min when a 30 mm diametre hole is punched in 5 mm thick plate with ultimate shear strength og 450 Mpa in each stroke.
• 4-stroke engine has one power stroke per 2 revolutions hence turning moment diagram is uniform.
• For the given data of an Internal combustion engine : Mass of parts = 180 kg bore = 175 mm, length of stroke = 200 mm, engine speed = 500 r.p.m., length of connecting rod = 400 mm and crank angle = 60° from T.D.C, find the inertia force.
• In the turning moment diagram of a multicylinder engine, the work done during exhaust stroke is by              
• Which of the following process is not the part of working of a 4 stroke I.C Engine?
• Work produced by the 4-stroke engine is less because                
• Piston effort acts along the line of stroke.
• The relation between stroke punch s and radius of crank r is              
• If the stroke punch is 100mm, find the radius of the crank in mm.
• In case of partial balancing of locomotives, the maximum magnitude of the unbalanced force perpendicular to the line of stroke is called hammer blow and this has to be limited by proper choice of the balancing mass and its radial position.