When variable valve timing (VVT) is used on a Caterpillar diesel engine, which of the following becomes variable?
A. valve overlap
B. valve lift dimension
C. moment of intake valve closure
D. moment of intake valve opening
Answer: D
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Most capacitors used in industry, especially for power factor correction, are called ____ capacitors.
A. conducting B. DC C. polarized D. nonpolarized
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What is commonly used to control defrost operations?
A) Defrost timer B) Door switch C) Thermometer D) Electric heater
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With a 2" tread thickness, how much will a stringer drop when installed on subflooring with 1/2" finish flooring to be applied after the staircase construction?
A) 1 1/2" B) 2" C) 1" D) 2 1/2"
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A gasket set for an air-conditioning compressor costs $21.55. The garage uses 2 sets per week. What does a 9-week supply cost?
A. $387.90 B. $389.90 C. $391.80 D. $383.80
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