The diesel engine was created through the efforts of Rudolph ...

[tth]

The diesel engine was created through the efforts of Rudolph Diesel, a German refrigerator engineer who believed it was possible to create an engine that could ignite fuel without a ___________________ _.
 
  Fill in the blank(s) with correct word

Question 2

The ___________________ __ from the slurry of grain kernels created in wet milling is filtered and dried, resulting in a product highly desired by the poultry industry for feed.
 
  Fill in the blank(s) with correct word

[enass]

Answer to Question 1

spark

Answer to Question 2

gluten

[tth]

Thanks for the timely response, appreciate it

[cassie_ragen]

Great answer, keep it coming