RED SEAL FINAL TEST 2026 QUESTIONS
WITH CORRECT ANSWERS GRADED A+
◍ On propane 2-psi residential system the system regulator must be installed
within ____metres of the exterior wall if it is installed outdoors.
A. 4
B. 1
C. 2
D. 3.
Answer: B. 1
◍ When referring to air brake system components the airline fittings use what
as a means of connections?
A) It uses flared connections.
B) It uses solder.
C) It uses tapered pipe threads.
D) It uses square pipe threads..
Answer: Correct answer=C
◍ Cavitation has been slowly occurring on a liner why?
Select one:
a. Poor coolant maintenance
b. Poor liner maintenance
c. Low water pump output
d. excessive rad cap pressure.
Answer: The correct answer is: Poor coolant maintenance
◍ There should not be a fuel filter bypass on a diesel fuel injection system.
A) True
B) False.
Answer: Correct answer=A
,◍ A settlement loop is installed in water distribution lines that are ______
inches or less:
A. 2
B. 3
C. 5
D. 4.
Answer: A. 2
◍ What tasks are involved in commissioning and decommissioning systems
and components?.
Answer: Commissions systems and components, and decommissions
systems and components.
◍ Which engine has a high exhaust emission?
A) The two-stroke cycle engine.
B) The four-stroke cycle engine..
Answer: Correct answer =A
◍ What type of fifth wheel assembly that allow front-to-rear pivoting only?
A) The compensating fifth wheel.
B) The double oscillating fifth wheel.
C) The semi-oscillating fifth wheel.
D) The no-tilt fifth wheel..
Answer: Correct answer=C
◍ The major of diesel engines are constructed with what type of block design?
A) Enbloc with sleeves or liners.
B) Sectional engine blocks.
C) Enbloc with integral cylinders.
D) A two piece block design..
Answer: Correct answer=A
◍ What device can be installed to protect a hot water boiler from low water
level?.
Answer: Probe type cut off
,◍ The transfer pump on a diesel fuel system is located between the injection
pump and the injectors.
A) True
B) False.
Answer: Correct answer=B
◍ What essential skills are required for using mechanical drawings and
schematics?.
Answer: Document Use, Numeracy, Thinking.
◍ Which of the following is true with respect to a pressure reducing valve?
A) They are a NC device.
B) Pilot pressure to open the valve is sensed downstream of the valve.
C) No drain line is required.
D) The outlet port is connected to the circuit to be operated at increased
pressure..
Answer: Correct answer =B
◍ What must happen when a small container is filled from a large WHMIS
labeled container?
A) A worker's compensation address must be visible.
B) An OH and S label is required.
C) No action is necessary.
D) An appropriate workplace label must be placed..
Answer: Correct answer=D
◍ What causes a V6 engine to have a "rocking couple"?
A) It is caused by the pistons at the back moving in the upward position
while at the front pistons are going downward.
B) It is caused by the mounting bolts and rubber mounts fastened to the
engine.
C) It is caused by an unbalanced counterweight on the crankshaft.
D) It is caused by a flywheel mounted in the incorrect position..
Answer: Correct answer =A
, ◍ margarine.
Answer: is a butter-like product made from refined vegetable or animal oils.
◍ the fat in a forcemeat is what?.
Answer: usually backfat or heavy cream
◍ How is battery acid neutralized?
Select one:
a. Water
b. Baking soda and water
c. Vinegar and baking soda
d. Baking powder and water.
Answer: The correct answer is: Baking soda and water
◍ The temperature gauge on a vehicle uses a NTC thermistor as a sending
unit. What will the thermistor resistance be when it is cold?
A) It will have a high resistance.
B) It will have a low resistance..
Answer: Correct answer =A
◍ Over sizing a boiler could result in
A. A cooling of the controlled space
B. The temperature dropping below the set point
C. Not enough heat for the residence
D. The boiler cycling on and off more frequently.
Answer: D. The boiler cycling on and off more frequently
◍ All diesel fuel should contain less than what percentage Sulphur by weight?
A) It should contain less than 13 % Sulphur by weight.
B) It should contain less than 9 % Sulphur by weight.
C) It should contain less than 5 % Sulphur by weight.
D) It should contain less than 1 % Sulphur by weight..
Answer: Correct answer=D
◍ The water closet bowl that has a deep trap seal and a jet opening in the
fixture trap outlet is called the ______ bowl.
WITH CORRECT ANSWERS GRADED A+
◍ On propane 2-psi residential system the system regulator must be installed
within ____metres of the exterior wall if it is installed outdoors.
A. 4
B. 1
C. 2
D. 3.
Answer: B. 1
◍ When referring to air brake system components the airline fittings use what
as a means of connections?
A) It uses flared connections.
B) It uses solder.
C) It uses tapered pipe threads.
D) It uses square pipe threads..
Answer: Correct answer=C
◍ Cavitation has been slowly occurring on a liner why?
Select one:
a. Poor coolant maintenance
b. Poor liner maintenance
c. Low water pump output
d. excessive rad cap pressure.
Answer: The correct answer is: Poor coolant maintenance
◍ There should not be a fuel filter bypass on a diesel fuel injection system.
A) True
B) False.
Answer: Correct answer=A
,◍ A settlement loop is installed in water distribution lines that are ______
inches or less:
A. 2
B. 3
C. 5
D. 4.
Answer: A. 2
◍ What tasks are involved in commissioning and decommissioning systems
and components?.
Answer: Commissions systems and components, and decommissions
systems and components.
◍ Which engine has a high exhaust emission?
A) The two-stroke cycle engine.
B) The four-stroke cycle engine..
Answer: Correct answer =A
◍ What type of fifth wheel assembly that allow front-to-rear pivoting only?
A) The compensating fifth wheel.
B) The double oscillating fifth wheel.
C) The semi-oscillating fifth wheel.
D) The no-tilt fifth wheel..
Answer: Correct answer=C
◍ The major of diesel engines are constructed with what type of block design?
A) Enbloc with sleeves or liners.
B) Sectional engine blocks.
C) Enbloc with integral cylinders.
D) A two piece block design..
Answer: Correct answer=A
◍ What device can be installed to protect a hot water boiler from low water
level?.
Answer: Probe type cut off
,◍ The transfer pump on a diesel fuel system is located between the injection
pump and the injectors.
A) True
B) False.
Answer: Correct answer=B
◍ What essential skills are required for using mechanical drawings and
schematics?.
Answer: Document Use, Numeracy, Thinking.
◍ Which of the following is true with respect to a pressure reducing valve?
A) They are a NC device.
B) Pilot pressure to open the valve is sensed downstream of the valve.
C) No drain line is required.
D) The outlet port is connected to the circuit to be operated at increased
pressure..
Answer: Correct answer =B
◍ What must happen when a small container is filled from a large WHMIS
labeled container?
A) A worker's compensation address must be visible.
B) An OH and S label is required.
C) No action is necessary.
D) An appropriate workplace label must be placed..
Answer: Correct answer=D
◍ What causes a V6 engine to have a "rocking couple"?
A) It is caused by the pistons at the back moving in the upward position
while at the front pistons are going downward.
B) It is caused by the mounting bolts and rubber mounts fastened to the
engine.
C) It is caused by an unbalanced counterweight on the crankshaft.
D) It is caused by a flywheel mounted in the incorrect position..
Answer: Correct answer =A
, ◍ margarine.
Answer: is a butter-like product made from refined vegetable or animal oils.
◍ the fat in a forcemeat is what?.
Answer: usually backfat or heavy cream
◍ How is battery acid neutralized?
Select one:
a. Water
b. Baking soda and water
c. Vinegar and baking soda
d. Baking powder and water.
Answer: The correct answer is: Baking soda and water
◍ The temperature gauge on a vehicle uses a NTC thermistor as a sending
unit. What will the thermistor resistance be when it is cold?
A) It will have a high resistance.
B) It will have a low resistance..
Answer: Correct answer =A
◍ Over sizing a boiler could result in
A. A cooling of the controlled space
B. The temperature dropping below the set point
C. Not enough heat for the residence
D. The boiler cycling on and off more frequently.
Answer: D. The boiler cycling on and off more frequently
◍ All diesel fuel should contain less than what percentage Sulphur by weight?
A) It should contain less than 13 % Sulphur by weight.
B) It should contain less than 9 % Sulphur by weight.
C) It should contain less than 5 % Sulphur by weight.
D) It should contain less than 1 % Sulphur by weight..
Answer: Correct answer=D
◍ The water closet bowl that has a deep trap seal and a jet opening in the
fixture trap outlet is called the ______ bowl.
