2011 Practice Test Flashcards
The component in which liquid vapor by absorbing heat is called?
a. Condenser
b. Compressor
c. Expansion tube
d. Evaporator
Evaporator
Select the best answer electrical grounding method?
a. Metal stake drive 8 foot into the ground.
A _____ valve should be used for throttling purpose?
a. Globe
b. Ball
c. Gate
d. Check
a. Globe
What is the acceptable range for residual sodium sulfite in the boiler maintain?
A. 15-30
B. 20-40
C. 30-70
D. 40-80
C. 30-70
What is the BTU content of a gallon of #4?
a. 141,000
b. 148,000
c. 146,000
d. 150,000
c. 146,000
What does a zeolite water softener system use as a means of regeneration?
a. salt
b. Hot water
c. Cold water
d. Brine
d. Brine
What are the 4 steps for a Zeolite Rejuvenation water softener process?
a. Back wash
b. Brine
c. Fast rinse
d. Brine tank refill/Service
Where is medium temperature liquid found?
a. Condenser
Where is high temperature vapor found?
a. At the discharge of the compressor or condenser
What stays are used to support the burner chamber in a scotch marine boiler?
a. Grinder stay
b. Diagonal Stays
c. Through Stays
d. Palm Stay
b. Diagonal Stays
Name the wire that connects all component of a system to a physical ground or water pipe?
a. Grounding Electrode Conductor
On the boilers that have both Quick opening and Screw type blow down valves, the Quick
opening valve must be located?
a. Closest to the boiler and followed by the screw type valve
High pressure boilers equipped with Quick opening and Screw type valves are blown down how?
a. By opening the Quick opening valve first and closing it Last
ASME Code defines a slow opening valve as what?
a. One requiring at least 5 full 360 degree turns between full open and close position
During a 24 hours operation how often should you check the water level?
Once per shift
How often you checking the high limit switch?
Annually
What is the recommended time for a complete external inspection of a boiler?
Once per shift
What is the first thing to do when shutting down a boiler?
Turn of the fire
A flow control should be blown down when?
Once per shift
How often should you check the Low Water Fuel Cut off?
Once per shift
Why is oil added to the refrigerant?
a. To lubrication of the compressor
b. Keep refrigerant migrating
Recycled and filtered refrigerant can be used where?
By the same owner in the same type of equipment
Data printed on the equipment nameplate would include manufacturer, model, and serial
number and________________?
a. Stamp of approval from commissioning authority
How many BTU does it take to raise 10 lbs of steam from 40 to 41 degrees?
a. 1 BTU