3-48. When  the  governor  compensating needle  valve  is  correctly  adjusted, the engine will behave in which of the  following  manners  during  load changes? 1. Maintain  low  underspeeds 2. Maintain  high  overspeeds 3. Return  slowly  to  normal  speeds 4. Return  quickly  to  normal  speeds 3-49. An increase in load for any constant  throttle  setting  of  a mechanical  governor  will  be accompanied  by  a  decrease  in 1. engine  speed 2. spring  length 3. fuel  pressure 4. oil  temperature 3-50. The  mechanical  governor  controls the engine maximum speed when the centrifugal  force  of  both  sets  of flyweights  act  against  which  of  the following  parts? 1. The  buffer  spring 2. The  light  spring 3. The  heavy  spring 4. Each of the above 3-51. Which of the following is NOT a cause  of  improper  speed  fluctuation of an engine equipped with a mechanical  governor? 1. Constantly  changing  loads 2. Misfiring  engine  cylinders 3.    A  binding  governor  linkage 4. High lube oil temperature 3-52. When you are in the process of assembling  a  governor,  which  of  the following  materials  is  recommended for use on the sealing gasket? 1. Shellac 2. Hard  grease 3. Soft  grease 4. Lube oil 3-53. An overspeed trip will stop a diesel  engine  that  is  equipped  with a speed governor when the regular speed  governor  fails  to  perform which  of  the  following  actions? 1. Limit the load on the engine 2. Keep the engine within its maximum  designed  limit 3. Adjust  to  higher  engine  loads 4. Reduce  engine  hunt 3-54. A broken drive shaft of a hydraulic overspeed  trip  will  cause uncontrolled  engine  speed  because the  flyweights  would 1. disconnect  from  the  shaft 2. remain  in  the  distended position 3. cease  to  exert  centrifugal force 4. increase  in  rotative  speed 3-55. What controls the output of a high-speed   refrigeration compressor? 1. The  box  temperature 2. The loading and unloading of compressor   cylinders 3. The  low-pressure  switch 4. The  solenoid  valve IN  ANSWERING  QUESTION  3-56,  REFER  TO FIGURE 5-3 OF THE TEXTBOOK. 3-56. What will happen when an increase in oil pump pressure causes the piston  of  the  capacity  control valve to move against spring A? 1. More  cylinders  will  become loaded  and  the  compressor output  will  increase 2. More  cylinders  will  become unloaded  and  the  compressor output  will  decrease 3. The  regulating  valves  will relieve the oil pressure 4. The  compressor  output  will remain the same 22