An engine is disassembled because of a single torched piston: the other five appear normal. Which of the following should be investigated first?
A. failed head gasket fire ring
B. oil cooling jet
C. water jacket scaling
D. connecting rod oil rifle
Answer: B
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The APWA color code used to mark underground gas lines is _____.
a. red b. blue c. green d. yellow
Laura and Philip each fire one shot at a target. Laura has probability 0.5 of hitting the target, and Philip has probability 0.3. The shots are independent.
a. Find the probability that the target is hit. b. Find the probability that the target is hit by exactly one shot. c. Given that the target was hit by exactly one shot, find the probability that Laura hit the target.
ASME Standard B30.9 provides guidance for chain slings regarding the minimal thickness at any point on the link, with the measurements based on _____.
a. the steel alloy from which the chain is made
b. the size of the connected hooks or other hardware
c. the nominal size of the chain link
d. the length of the chain sling leg(s)
A transistor is a series-parallel circuit comprised of three variable resistors
Indicate whether the statement is true or false