What is the primary cause of harmful tailpipe emissions?

A. Low quality fuel.
B. Low ignition temperatures.
C. Nitrogen enriched fuel.
D. Imperfect combustion.


Answer: D

Trades & Technology

You might also like to view...

Which of the following is NOT a principle of behavior-based safety?

A) Planned interventions B) Intervention C) Application of the MBWA theory D) Identification of internal factors

Trades & Technology

Which of the following is an exterior brick wall constructed with a vertical void space between the exterior wythe and the interior wythe?

A. Cavity wall B. Buttress wall C. Lintelled wall D. Corbelled wall

Trades & Technology

When a VAV box on a constant-air-volume system throttles air into the conditioned area:

A) The blower slows down to reduce overall airflow. B) The excess air dumps into the area above the ceiling. C) The compressor and blower both slow down to match. D) The compressor slows down to match it.

Trades & Technology

What types of appliances may oil furnaces be common vented with?

What will be an ideal response?

Trades & Technology