WGU BIOCHEMISTRY OA ACTUAL
EXAM PAPER 2026 QUESTIONS WITH
ANSWERS GRADED A+
◍ What is the time constant for a circuit with 150KOhms and a 2 microfarad
capacitor?.
Answer: .3 seconds
◍ What must be done before checking pump drive belts on a hydraulic
elevator.
Answer: Pull the main disconnect switch
◍ Which of the following best describes the danger posed be the
counterweight assembly when you are riding the car top?.
Answer: It run close by in the opposite direction
◍ Why must you place a hydraulic elevator car on jack posts before servicing
the packing head?.
Answer: Because a hydraulic elevator is supported by a column of oil.
◍ Why can't Elevator Constructors use a metal ladder?.
Answer: Metal ladders conduct electricity
◍ Glycine (Gly/G/ Nonpolar)*.
Answer: nan
◍ What is the function of a Ground Fault Circuit Interrupter?.
Answer: To detect and imbalance in current between the hot and nuetral
wires
◍ How do you determine the correct angle from the vertical for placing a
ladder.
Answer: Measure out a distance of 1/4 the height.
,◍ Alanine (Ala/A/Nonpolar).
Answer: nan
◍ Who is required to furnish you the necessary safety equipment?.
Answer: Your employer
◍ Valine (Val/V/nonpolar).
Answer: nan
◍ Leucine (Leu/L/Nonpolar).
Answer: nan
◍ Isoleucine (Ile/I/nonpolar).
Answer: nan
◍ What device must be in working condition in order to use an elevator car
sling as a running platform.
Answer: The governor and safeties.
◍ What hazardous condition can occur if the weight of the temporary car and
counterweight are not kept nearly equal?.
Answer: Traction could be lost
◍ What is the name of the document that lists the hazards of a substance?.
Answer: Material Safety Data Sheet or Safety Data Sheet
◍ Who is responsible for making sure barricades are kept in place?.
Answer: Everyone on the job
◍ Who is primarily responsible for your safety on the job?.
Answer: You, Yourself
◍ Methionine (Met/M/nonpolar).
Answer: nan
◍ Tryptophan (Trp/W/nonpolar).
Answer: nan
◍ Which agency guarantees your right to a safe workplace?.
, Answer: OSHA
◍ Which of the following makes a good substitute for a ladder?.
Answer: Never substitute anything
◍ How should you proceed to et a toolbox to the machine room when climbing
a vertical ladder?.
Answer: Climb the ladder and pull the box up with a rope
◍ What is the safest way to lubricate hoist ropes?.
Answer: With a rope lubricator
◍ Phenylalanine (Phe/P/Nonpolar).
Answer: nan
◍ Proline (Pro/P/Nonpolar)*.
Answer: nan
◍ Serine (Ser/S/Polar).
Answer: nan
◍ Threonine (Thr/T/Polar).
Answer: nan
◍ What supports a hydraulic elevator?.
Answer: The column of oil inside the jack
◍ What is the first thing you must do before performing any service on an
elevator.
Answer: Place barricades at the upper and lower ends
◍ Cysteine (Cys/C/Polar)*.
Answer: nan
◍ Tyrosine (Tyr/Y/Polar).
Answer: nan
◍ Asparagine (Asn/N/Polar).
Answer: nan
, ◍ Glutamine (Gln/Q/Polar).
Answer: nan
◍ When a roller bearing needs to be pressed onto a shaft, what type of
allowance does the shaft have?.
Answer: Negative allowance
◍ What is the tolerance accepted in the elevator industry?.
Answer: +- 1/64
◍ Best Describe Layout Drawings.
Answer: A mechanical drawing showing plans and elevation views of the
elevator installation
◍ Aspartic Acid (Asp/D/negative).
Answer: nan
◍ Glutamic Acid (Glu/E/Negative).
Answer: nan
◍ What document provides information on the number of doors for an
installation and their color?.
Answer: Job Abstract
◍ What is the purpose of the elevation view found in the final layouts?.
Answer: To show vertical locations and dimensions of elevator components.
◍ The floor heights for the Wilton Towers are as follows; sub-basement-
10'2"; subbasement to basement-12'5"; basement to lobby-22'8"; lobby to
the 11th floor-120'5"; and to the executive floor-16'5". What is the total
travel for an elevator that travels from ht ebasement floor level to the
executive floor level?.
Answer: 159' 5"
◍ You have been tasked with unloading 177 boxes from the company truck
and moving them into a storage area. By noon you have moved 103 boxes.
What percentage of the load has been moved?.
Answer: 58%
EXAM PAPER 2026 QUESTIONS WITH
ANSWERS GRADED A+
◍ What is the time constant for a circuit with 150KOhms and a 2 microfarad
capacitor?.
Answer: .3 seconds
◍ What must be done before checking pump drive belts on a hydraulic
elevator.
Answer: Pull the main disconnect switch
◍ Which of the following best describes the danger posed be the
counterweight assembly when you are riding the car top?.
Answer: It run close by in the opposite direction
◍ Why must you place a hydraulic elevator car on jack posts before servicing
the packing head?.
Answer: Because a hydraulic elevator is supported by a column of oil.
◍ Why can't Elevator Constructors use a metal ladder?.
Answer: Metal ladders conduct electricity
◍ Glycine (Gly/G/ Nonpolar)*.
Answer: nan
◍ What is the function of a Ground Fault Circuit Interrupter?.
Answer: To detect and imbalance in current between the hot and nuetral
wires
◍ How do you determine the correct angle from the vertical for placing a
ladder.
Answer: Measure out a distance of 1/4 the height.
,◍ Alanine (Ala/A/Nonpolar).
Answer: nan
◍ Who is required to furnish you the necessary safety equipment?.
Answer: Your employer
◍ Valine (Val/V/nonpolar).
Answer: nan
◍ Leucine (Leu/L/Nonpolar).
Answer: nan
◍ Isoleucine (Ile/I/nonpolar).
Answer: nan
◍ What device must be in working condition in order to use an elevator car
sling as a running platform.
Answer: The governor and safeties.
◍ What hazardous condition can occur if the weight of the temporary car and
counterweight are not kept nearly equal?.
Answer: Traction could be lost
◍ What is the name of the document that lists the hazards of a substance?.
Answer: Material Safety Data Sheet or Safety Data Sheet
◍ Who is responsible for making sure barricades are kept in place?.
Answer: Everyone on the job
◍ Who is primarily responsible for your safety on the job?.
Answer: You, Yourself
◍ Methionine (Met/M/nonpolar).
Answer: nan
◍ Tryptophan (Trp/W/nonpolar).
Answer: nan
◍ Which agency guarantees your right to a safe workplace?.
, Answer: OSHA
◍ Which of the following makes a good substitute for a ladder?.
Answer: Never substitute anything
◍ How should you proceed to et a toolbox to the machine room when climbing
a vertical ladder?.
Answer: Climb the ladder and pull the box up with a rope
◍ What is the safest way to lubricate hoist ropes?.
Answer: With a rope lubricator
◍ Phenylalanine (Phe/P/Nonpolar).
Answer: nan
◍ Proline (Pro/P/Nonpolar)*.
Answer: nan
◍ Serine (Ser/S/Polar).
Answer: nan
◍ Threonine (Thr/T/Polar).
Answer: nan
◍ What supports a hydraulic elevator?.
Answer: The column of oil inside the jack
◍ What is the first thing you must do before performing any service on an
elevator.
Answer: Place barricades at the upper and lower ends
◍ Cysteine (Cys/C/Polar)*.
Answer: nan
◍ Tyrosine (Tyr/Y/Polar).
Answer: nan
◍ Asparagine (Asn/N/Polar).
Answer: nan
, ◍ Glutamine (Gln/Q/Polar).
Answer: nan
◍ When a roller bearing needs to be pressed onto a shaft, what type of
allowance does the shaft have?.
Answer: Negative allowance
◍ What is the tolerance accepted in the elevator industry?.
Answer: +- 1/64
◍ Best Describe Layout Drawings.
Answer: A mechanical drawing showing plans and elevation views of the
elevator installation
◍ Aspartic Acid (Asp/D/negative).
Answer: nan
◍ Glutamic Acid (Glu/E/Negative).
Answer: nan
◍ What document provides information on the number of doors for an
installation and their color?.
Answer: Job Abstract
◍ What is the purpose of the elevation view found in the final layouts?.
Answer: To show vertical locations and dimensions of elevator components.
◍ The floor heights for the Wilton Towers are as follows; sub-basement-
10'2"; subbasement to basement-12'5"; basement to lobby-22'8"; lobby to
the 11th floor-120'5"; and to the executive floor-16'5". What is the total
travel for an elevator that travels from ht ebasement floor level to the
executive floor level?.
Answer: 159' 5"
◍ You have been tasked with unloading 177 boxes from the company truck
and moving them into a storage area. By noon you have moved 103 boxes.
What percentage of the load has been moved?.
Answer: 58%
