Custodian Test Prep Class Questions & Answers
1.0 ppm The minimum amount of free chlorine that swimming pool water should contain
for proper disinfection Is ....
2 In a double wrap traction type elevator, the number os sheaves used is...
2¨to 8¨ The range on the vacuum switch is usually set for
3 inches above the top row of tubes The lowest visible part of the water column attached to an HRT boiler should be
at least ...
10% In high pressure electric generating plants in large buildings, heating the feed
water from 70f to 180f with exhaust steam usually will decrease the fuel
consumption by...
10 PSI The point at which swimming pool filters should be back washed is when the
difference between the inlet and outlet pressure exceeds...
12% The carbon dioxide reading in a boiler flue when the boiler is operating efficiently
should be most nearly...
Page 1 of 13
, Custodian Test Prep Class Questions & Answers
25 and 50% When an oil burner is burning oil efficiently, the amount of excess air is usually
90 decibels The minimum noise level beyond which hearing may be impaired is ...
125F The ideal flue gas temperature in a rotary cup oil fired boiler should be equal to
the steam temperature plus...
140 F Domestic hot water supply should be maintained at a temperature not less than. ...
(check.. i found 105 for schools)q
200 BTU per minute One ton of refrigeration may be expressed most accurately as...
208 volt 3 phase 4 wire 120 volts to ground The electric service that is provided to most schools in the city is nominally ...
240 BTU Generally in steam heating systems, a square foot of radiator heating surface will
supply...
About two feet above the sidewalk The proper location of the Siamese connection to the riser of a standpipe system
in a school is...
Page 2 of 13
1.0 ppm The minimum amount of free chlorine that swimming pool water should contain
for proper disinfection Is ....
2 In a double wrap traction type elevator, the number os sheaves used is...
2¨to 8¨ The range on the vacuum switch is usually set for
3 inches above the top row of tubes The lowest visible part of the water column attached to an HRT boiler should be
at least ...
10% In high pressure electric generating plants in large buildings, heating the feed
water from 70f to 180f with exhaust steam usually will decrease the fuel
consumption by...
10 PSI The point at which swimming pool filters should be back washed is when the
difference between the inlet and outlet pressure exceeds...
12% The carbon dioxide reading in a boiler flue when the boiler is operating efficiently
should be most nearly...
Page 1 of 13
, Custodian Test Prep Class Questions & Answers
25 and 50% When an oil burner is burning oil efficiently, the amount of excess air is usually
90 decibels The minimum noise level beyond which hearing may be impaired is ...
125F The ideal flue gas temperature in a rotary cup oil fired boiler should be equal to
the steam temperature plus...
140 F Domestic hot water supply should be maintained at a temperature not less than. ...
(check.. i found 105 for schools)q
200 BTU per minute One ton of refrigeration may be expressed most accurately as...
208 volt 3 phase 4 wire 120 volts to ground The electric service that is provided to most schools in the city is nominally ...
240 BTU Generally in steam heating systems, a square foot of radiator heating surface will
supply...
About two feet above the sidewalk The proper location of the Siamese connection to the riser of a standpipe system
in a school is...
Page 2 of 13
