A-frames and cylinder block is held together by （） to form a rigid structure. A: connecting rods B: piston rods C: tie rods D: jack-bolt

Block group contains______. A: connecting rods,crankshaft and flywheel B: pistons,connecting rods and oil pan C: cylinder block,cylinder head and oil pan D: piston rings,gasket and connecting rods

Suppose that both the cross-sectional area A and the length L of two straight rods are the same, and the axial tension forces P at both ends of the two are also the same. Only the materials of the two rods are different. Which statement about the stress σ and the elongation ΔL of the two rods is right?__________

Block group contains ________. A: connecting rods, crankshaft and flywheel B: pistons, connecting rods and oil pan C: cylinder block, cylinder head and oil pan

The sealing rings are in four parts and pressed together around the piston rods by means of （）.

（） rods are not in proper condition so that too much fuel is supplied to the corresponding cylinder.

The gas loads on the engine structure are constrained by means of hydraulically preloaded （） which connect the bed plate, frame sections and cylinder jackets into a single unit. A: Aconnecting rods B: Bmain bearing C: Ccolumn D: Dtie rods

What are the key parts of the suspension system?( ) A: shock absorbers B: rods C: springs

Concrete can be made stronger under tension by adding metal rods, wires, mesh or cables to the composite.( )

The complete assembly of bedplate， A-frames and cylinder block is held together by （） to form a rigid structure. A: tap-bolts B: jack-bolts C: tie rods D: fitted rod