When unburned hydrocarbons are exposed to oxides of nitrogen and sunlight, what is produced?
A. particulate matter
B. carbon monoxide
C. both A and B
D. photochemical smog
Answer: D
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Worn-out shock absorbers or struts may cause:
A. Steering pull B. Suspension bottoming C. Excessive steering free play D. Lateral chassis oscillations
An adiabatic steam turbine operates between state 1 at 6 MPa and 600°C, and state 2 at 10 kPa and x2 = 1.0. The turbine efficiency is nearest:
A) 92% B) 87% C) 81% D) 77%
A cold storage facility is typically used to store bare root materials in nurseries. These plants are typically defoliated to reduce moisture loss during storage by treating with abscisic acid
Indicate whether the statement is true or false
The strength of the field of ________ can be changed easily
A) an electromagnet B) a permanent magnet C) a dipole