GENERAL ENGINEERING ECCC
EXAM
What are the ways to reduce voltage drop in a circuit? - ANSWERS-
Increase conductor diameter, decrease distance to load, and increase
voltage.
Would a refrigerator be classified as a resistive or inductive load? -
ANSWERS-Inductive. An inductive load is anything with a motor
(fans, AC, fridge, etc.) Examples of resistive loads include lights and
heating elements.
What is the rounding rule for electrical equations? - ANSWERS-Two
decimal points.
What steps are common to constructing railroads and constructing
roads? - ANSWERS-Clearing and grubbing; Cut/fill and prep
subgrade
If you know X, Y, and Z, what equations do you use to find A, B, and
C when designing a road? - ANSWERS-A = Z but must be greater
than or equal to 4 inches. B = Y-A but if 2" or less, should be added to
the layer above and if 3", should be rounded to 4". C = X - (A+B).
Which three layers of a road MUST be present at a minimum? -
ANSWERS-Surface, Base Course, Compacted Subgrade.
, List the layers of a road from top to bottom. Which are typically the
most expensive? Which are strongest? - ANSWERS-Surface, Base
Course, Subbase, Select Material, Compacted Subgrade. The
uppermost layers are the strongest and typically the most expensive.
What are the three steps of the base camp electrical design process? -
ANSWERS-Determine interior electrical loads in watts for each
building and piece of equipment ; Select generators for the base camp
based on watts; Install distribution system from the power source to
the buildings
What is the rule of thumb for assigning phases to a load with n wires?
- ANSWERS-Load requires n-1 phases (e.g. a 4 wire load will use 3
phases because one of the wires is the neutral)
Electrical Step 1 Formulas - ANSWERS-Lights/Outlets x Aps x Volts
= Watts
Pump x hp x 746= Watts
Watts per room/1000= KW
*motor vs. non motor separate
% Motor Load Formula - ANSWERS-(Motor Load Total x 100)/
Total Demand Load
EXAM
What are the ways to reduce voltage drop in a circuit? - ANSWERS-
Increase conductor diameter, decrease distance to load, and increase
voltage.
Would a refrigerator be classified as a resistive or inductive load? -
ANSWERS-Inductive. An inductive load is anything with a motor
(fans, AC, fridge, etc.) Examples of resistive loads include lights and
heating elements.
What is the rounding rule for electrical equations? - ANSWERS-Two
decimal points.
What steps are common to constructing railroads and constructing
roads? - ANSWERS-Clearing and grubbing; Cut/fill and prep
subgrade
If you know X, Y, and Z, what equations do you use to find A, B, and
C when designing a road? - ANSWERS-A = Z but must be greater
than or equal to 4 inches. B = Y-A but if 2" or less, should be added to
the layer above and if 3", should be rounded to 4". C = X - (A+B).
Which three layers of a road MUST be present at a minimum? -
ANSWERS-Surface, Base Course, Compacted Subgrade.
, List the layers of a road from top to bottom. Which are typically the
most expensive? Which are strongest? - ANSWERS-Surface, Base
Course, Subbase, Select Material, Compacted Subgrade. The
uppermost layers are the strongest and typically the most expensive.
What are the three steps of the base camp electrical design process? -
ANSWERS-Determine interior electrical loads in watts for each
building and piece of equipment ; Select generators for the base camp
based on watts; Install distribution system from the power source to
the buildings
What is the rule of thumb for assigning phases to a load with n wires?
- ANSWERS-Load requires n-1 phases (e.g. a 4 wire load will use 3
phases because one of the wires is the neutral)
Electrical Step 1 Formulas - ANSWERS-Lights/Outlets x Aps x Volts
= Watts
Pump x hp x 746= Watts
Watts per room/1000= KW
*motor vs. non motor separate
% Motor Load Formula - ANSWERS-(Motor Load Total x 100)/
Total Demand Load
