When a diesel engine is operated exposed to dense grain chaff, which of the following devices can help extend air filter life?
A. lower restriction filter
B. higher restriction filter
C. air filter pre-cleaner
D. adding methyl hydrate to fuel tank
Answer: C
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Si se diseña un cable de instrumentación o alarma contra incendios con un sistema apantallado, ¿qué debe hacerse para que el cable de drenaje resulte efectivo?
a. Conectar a tierra sólo un extremo. b. Cubrirlo con cinta en ambos extremos. c. Terminarlo en un conductor neutro. d. Energizarlo.
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Refer to Exercise 1.
a. Find the marginal probability mass function pX(x).
b. Find the marginal probability mass function pY(y).
c. Find 
.
d. Find 
.
e. Find 
.
f. Find
.
g. Find Cov(X, Y).
h. Find
.
i. Are X and Yindependent? Explain.
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When ceiling joists are spliced, there should be a minimum overlap of _____.