Z-51 WRITTEN TEST | TOP SCORES MADE SIMPLE |
TRUSTED TEST SOLUTIONS!
In a steam turbine, what is the function of a Kingsbury thrust bearing?
A) Maintain first stage steam pressure.
B) Compensate for coupling misalignment.
C) Adjust shaft torque at start up.
D) Maintain axial positioning of the rotor shaft.Answer: D) Maintain axial positioning
of the rotor shaft.
When must the Fire Department be notified that a fire protection system is out of
service?
A) The manual pull alarm station in the lobby will be out of service for 4 hours.
B) Four sprinkler heads on a same floor of your building will be out of service for 2
hours.
C) The sprinkler system will be out of service on 1st and 2nd floors.
D) The fire alarm system is out of service in the refrigerating system room for g
hours.Answer: C) The sprinkler system will be out of service on 1st and 2nd floors.
Hot work authorizations are issued by
A) a Responsible Person designated by the Building Owner.
B) a Building Department inspector.
C) a FDNY inspector.
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
,D) the Building owner's insurance company.Answer: A) a Responsible Person
designated by the building owner.
Insecticidal fogging operations are hazardous because chemicals
A) are corrosive.
B) are water-reactive.
C) may be toxic.
D) are highly unstable.Answer: C) may be toxic.
Where is emergency power not required according to code?
A) Fire pumps.
B) High rise elevators.
C) Egress illumination.
D) Data centers.Answer: D) Data centers.
A technician shows up to service the fire alarm panel in your building. What COF
qualifications must he/she have?
A) A Q-01/Q-99 Certificate of Qualification holder who is designated by the building
owner.
B) A certified Fire Safety Director who is designated by the building owner.
C) A S-95 Certificate of Fitness holder who is employed by a FDNY certified
company.
D) A S-97/S-98 Certificate of Fitness holder who is employed by a FDNY certified
company.Answer: D) A S-97/S-98 Certificate of Fitness holder who is employed by a
FDNY certified company.
In an office building, the display of cut natural trees (Christmas trees) is
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
, A) never allowed.
B) allowed provided they are removed once they dry out.
C) always allowed.
D) allowed during the holiday season.Answer: A) never allowed.
Describe the equipment's function in the picture.
A) Control flow of refrigerant to the compressor.
B) Remove non-condensable from the condenser.
C) Relieve excess pressure from the condenser.
D) Relieve excess pressure from the evaporator.Answer: B) Remove non-
condensable from the condenser.
When the expansion valve is operating properly, the end of the evaporator will
contain
A) only superheated vapor.
B) saturated liquid refrigerant
C) only vapor.
D) only liquid refrigerant.Answer: A) only superheated vapor.
How much extra refrigerant con be stored in a machine room?
A) 330 lbs.
B) The amount equal to the design pressure.
C) 20% above normal charge.
D) 220 lbs.Answer: C) 20% above normal charge.
3
APPHIA - Crafted with Care and Precision for Academic Excellence.
TRUSTED TEST SOLUTIONS!
In a steam turbine, what is the function of a Kingsbury thrust bearing?
A) Maintain first stage steam pressure.
B) Compensate for coupling misalignment.
C) Adjust shaft torque at start up.
D) Maintain axial positioning of the rotor shaft.Answer: D) Maintain axial positioning
of the rotor shaft.
When must the Fire Department be notified that a fire protection system is out of
service?
A) The manual pull alarm station in the lobby will be out of service for 4 hours.
B) Four sprinkler heads on a same floor of your building will be out of service for 2
hours.
C) The sprinkler system will be out of service on 1st and 2nd floors.
D) The fire alarm system is out of service in the refrigerating system room for g
hours.Answer: C) The sprinkler system will be out of service on 1st and 2nd floors.
Hot work authorizations are issued by
A) a Responsible Person designated by the Building Owner.
B) a Building Department inspector.
C) a FDNY inspector.
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
,D) the Building owner's insurance company.Answer: A) a Responsible Person
designated by the building owner.
Insecticidal fogging operations are hazardous because chemicals
A) are corrosive.
B) are water-reactive.
C) may be toxic.
D) are highly unstable.Answer: C) may be toxic.
Where is emergency power not required according to code?
A) Fire pumps.
B) High rise elevators.
C) Egress illumination.
D) Data centers.Answer: D) Data centers.
A technician shows up to service the fire alarm panel in your building. What COF
qualifications must he/she have?
A) A Q-01/Q-99 Certificate of Qualification holder who is designated by the building
owner.
B) A certified Fire Safety Director who is designated by the building owner.
C) A S-95 Certificate of Fitness holder who is employed by a FDNY certified
company.
D) A S-97/S-98 Certificate of Fitness holder who is employed by a FDNY certified
company.Answer: D) A S-97/S-98 Certificate of Fitness holder who is employed by a
FDNY certified company.
In an office building, the display of cut natural trees (Christmas trees) is
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
, A) never allowed.
B) allowed provided they are removed once they dry out.
C) always allowed.
D) allowed during the holiday season.Answer: A) never allowed.
Describe the equipment's function in the picture.
A) Control flow of refrigerant to the compressor.
B) Remove non-condensable from the condenser.
C) Relieve excess pressure from the condenser.
D) Relieve excess pressure from the evaporator.Answer: B) Remove non-
condensable from the condenser.
When the expansion valve is operating properly, the end of the evaporator will
contain
A) only superheated vapor.
B) saturated liquid refrigerant
C) only vapor.
D) only liquid refrigerant.Answer: A) only superheated vapor.
How much extra refrigerant con be stored in a machine room?
A) 330 lbs.
B) The amount equal to the design pressure.
C) 20% above normal charge.
D) 220 lbs.Answer: C) 20% above normal charge.
3
APPHIA - Crafted with Care and Precision for Academic Excellence.
