An intermittent spark
system lights the pilot
light
A. When the temperature drops
B. When the blower comes on
C. Upon a call for heat from the
thermostat
D. After the ignitor warm up period

On a average work day more than work place firs are reorted

The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false

Which of the following ziegler nichols tuning methods the response of the controller to a step input should exhibit an s-shaped curve? a)-open loop mode b)-closed loop mode c)-both modes (open & closed) d)-none of the modes (open & closed)