CUSTODIAN TEST PREP CLASS QUESTIONS WITH ALL
100% CORRECT ANSWERS.
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... Answer - 10%
The direct room radiator with a pneumatically controlled steam heating system
is cold, while the adjoining rooms are heated adequately. The first thing you
would check in the room is... Answer - Steam pipe in the room before the
pneumatic steam valve
The usual vacuum gauge on a steam heating system reads in... Answer - Inches
of vacuum
In a mechanical pressure type burner using no 6 oil heated to 230 f by steam,
the oil is atomized by... Answer - Oil pressure
A vaporstat with separate motor driven oil pump used on a fully automatic
heavy oil Brunéi get rotary cup installation is generally used to... Answer - Shut
down the burner when primary air failure occurs
In estimating the amount of work being done by a steam driven water pump,
the one of the following items which is usually the most important in the
calculation of pump horse power is the ... Answer - Gallons Pumped
, The term fixture unit usually refers to ... Answer - A rate of flow
When pumping water from a return tank, equipped with an automatic make up
valve located below the pump, the most probable cause of periodic pump
failures to deliver the water would be... Answer - The water was too hot
Suppose a small oil fire has broken out in the boiler room in your building,
under these circumstances, the extinguisher least suitable for use is... Answer -
Soda acid
Of the following, a low power factor would most likely result from... Answer - A
large induction motor operating at 60%normal rated capacity
Before putting two dc engine generators on the line in parallel, it is usually
necessary to ... Answer - Adjust the field of the incoming unit
Of the following, the best type of AC motor to use for direct connection to a
timing device which must be very accurate is a... Answer - Synchronous motor
One ton of refrigeration may be expressed most accurately as... Answer - 200
BTU per minute
Which of the following statements is correct with respect to filtration plants of
swimming pools... Answer - Alum is added to water to form a flee before the
water reaches the filters
An electric elevator car stalls on the ground floor of a school building. Of the
following the item you would least likely to check in your inspection is the B)
Floor door switch C) Limit switch D) current to elevator motor Answer - Limit
switch (only active when is running)
100% CORRECT ANSWERS.
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... Answer - 10%
The direct room radiator with a pneumatically controlled steam heating system
is cold, while the adjoining rooms are heated adequately. The first thing you
would check in the room is... Answer - Steam pipe in the room before the
pneumatic steam valve
The usual vacuum gauge on a steam heating system reads in... Answer - Inches
of vacuum
In a mechanical pressure type burner using no 6 oil heated to 230 f by steam,
the oil is atomized by... Answer - Oil pressure
A vaporstat with separate motor driven oil pump used on a fully automatic
heavy oil Brunéi get rotary cup installation is generally used to... Answer - Shut
down the burner when primary air failure occurs
In estimating the amount of work being done by a steam driven water pump,
the one of the following items which is usually the most important in the
calculation of pump horse power is the ... Answer - Gallons Pumped
, The term fixture unit usually refers to ... Answer - A rate of flow
When pumping water from a return tank, equipped with an automatic make up
valve located below the pump, the most probable cause of periodic pump
failures to deliver the water would be... Answer - The water was too hot
Suppose a small oil fire has broken out in the boiler room in your building,
under these circumstances, the extinguisher least suitable for use is... Answer -
Soda acid
Of the following, a low power factor would most likely result from... Answer - A
large induction motor operating at 60%normal rated capacity
Before putting two dc engine generators on the line in parallel, it is usually
necessary to ... Answer - Adjust the field of the incoming unit
Of the following, the best type of AC motor to use for direct connection to a
timing device which must be very accurate is a... Answer - Synchronous motor
One ton of refrigeration may be expressed most accurately as... Answer - 200
BTU per minute
Which of the following statements is correct with respect to filtration plants of
swimming pools... Answer - Alum is added to water to form a flee before the
water reaches the filters
An electric elevator car stalls on the ground floor of a school building. Of the
following the item you would least likely to check in your inspection is the B)
Floor door switch C) Limit switch D) current to elevator motor Answer - Limit
switch (only active when is running)
