The letters ____ are included on the drawing specifications to indicate when a left-hand thread is required.
A. LH
B. LHT
C. LT
D. LTH
Answer: A
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Ducks are taken off feed ____________________ to ____________________ hours before they are
slaughtered.
Fill in the blank(s) with the appropriate word(s).When injection timing is advanced in a truck diesel engine, which of the following would NOT be true?
A. engine power is increased B. fuel economy is improved C. engine longevity is reduced D. engine emissions are reduced
A Rankine heat engine uses water as the operating fluid. The steam leaving the boiler is saturated vapor at P = 1 MPa. The fluid leaving the turbine is at P = 0.2 MPa, and the turbine efficiency is 75 %. The fluid leaving the condenser is saturated liquid at P = 0.2 MPa. The pump work is 2 kJ/kg. What is the overall efficiency of the cycle?
A. 9.4 B. 0.10 C. 0.13 D. 0.12 E. Insufficient information to solve
Two inductors are connected in parallel to a 120-V, 60-Hz supply. The values of the inductors are 1.5 H and 2.5 H. The total inductive reactance is _____.
A. 525.5 ? B. 533.49 ? C. 942.5 ? D. 1508 ?