Page 41 - Apprentice Manual_Neat

89. The term “overcrank” refers to?

a. Out of limits on crankshaft bending
b. Engine failure to start
c. Starter failure to terminate when engine starts
d. Starter failure to disengage

90. What is the primary purpose of heating the engine coolant before start up?

a It heats the fuel for better combustion
b. It keeps the intake air system at a constant temperature.
c. It keeps the thermostat open for quick starting efficiency
d. It keeps the engine warmed up for quick starting efficiency

91. Why must an engine temperature be controlled?

a. An engine operates most efficiently at certain temperature ranges
b. Excessively high temperatures increase engine wear
c. Excessively low temperatures reduce combustion efficiency
d. All of the above

92. On electronically controlled diesel engines, electrical alarm and shutdown are processed through the
ECU to automatically alarm and/or shutdown the engine when needed?

a. True
b. False

93. Battery chargers perform what function?

a. Provide ignition voltage
b. Rectify AC into DC and maintain proper DC voltage level
c. Increase starting capacity
d. Provides the field for the generator

94. A hydrometer is used for what purpose?

a. Checking the coolant level in the radiator
b. Measuring the specific gravity of the battery acid
c. Measuring the condensation inside the generator
d. Determining if there is water in the fuel

95. Baking soda serves what purpose in power generation?

a. It is as a desiccant to absorb moisture inside the generator
b. It is used to remove the foul ozone odor left from the corona effect
c. It is used to neutralize a battery acid spill
d. None

Page 33 - EGSA Apprentice Certification Program Study Guide