Piston ring end gap can be increased by ________
A) Sleeving the cylinder B) Filing the ring to make gap larger
C) Installing oversize rings D) Knurling the piston
B
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?An engine has excessively worn exhaust guides. Technician A says to look for weak or short exhaust valve springs. Technician B says that this can cause excessive crankcase pressure. Who is right?
A. ?Technician A only B. ?Technician B only C. ?Both A and B D. ?Neither A nor B
Refer to Fig. 10.69. If vs(t) = Vm sin ? t and v?(t) = A sin(? t + ø), derive the expressions for A and ø.
Industrial refrigeration is primarily concerned with cooling processes and machines in manufacturing
A) homes and dwellings B) food products in grocery stores C) large retail buildings D) processes and machines in manufacturing
For internal memory, the 8051 has
A) 16 k × 8 ROM and a 256 × 8 RAM. B) 32 k × 16 ROM and a 256 × 16 RAM. C) 8 k × 4 ROM and a 128 × 4 RAM. D) 4 k × 8 ROM and a 128 × 8 RAM.