ABSA B UPDATED ACTUAL Questions
and CORRECT Answers
Apparent power is - CORRECT ANSWER - The va supplied to the circuit
When ac action causes a counter current in a coil of wire it is termed - CORRECT
ANSWER - Self inductance
Electrical power can be determined by formula - CORRECT ANSWER - P=ExI
An operating current transformer should never - CORRECT ANSWER - Have its
secondary circuit opened first
Fleming left hand rule, index finger - CORRECT ANSWER - Flux direction for motors
Right hand rule for generators is used to - CORRECT ANSWER - Determine direction of
induced current flow
Orifice plates, Venturi tubes and nozzles belong to a group called - CORRECT
ANSWER - Head meters
A low water fuel cutoff that serves no other purpose - CORRECT ANSWER - Cannot be
rendered inoperative
Modulating pressure controller output - CORRECT ANSWER - Will vary the fuel and air
flow to boiler
Bourdon tube helix shaped because - CORRECT ANSWER - More powerful and greater
degree of rotation
, Run time totals are used for - CORRECT ANSWER - Maintenance management
Second element of two element feed water control system compensates for or offsets -
CORRECT ANSWER - Shrink and swell
On pneumatic transmitter, a movement of the flapper towards nozzle will - CORRECT
ANSWER - Increase feedback bellows pressure
An air atomizing burner utilizes an air pressure of approximately - CORRECT ANSWER -
100kpa
Large capacity burners - CORRECT ANSWER - Should have minimum flow on ignition
Oil is supplied under high pressure to a - CORRECT ANSWER - Mechanical atomizing
burner
In a closed expansion tank system an air separator - CORRECT ANSWER - Directs air
into the expansion tank
A hydramotor valve - CORRECT ANSWER - Helps to prevent puff backs
Unit ventilators are - CORRECT ANSWER - Cabinet type heaters
Radiators can be classified as - CORRECT ANSWER - Wall hung, floor, and window
High efficiency furnaces and heaters range in annual fuel utilization efficiency from -
CORRECT ANSWER - 80-98%
and CORRECT Answers
Apparent power is - CORRECT ANSWER - The va supplied to the circuit
When ac action causes a counter current in a coil of wire it is termed - CORRECT
ANSWER - Self inductance
Electrical power can be determined by formula - CORRECT ANSWER - P=ExI
An operating current transformer should never - CORRECT ANSWER - Have its
secondary circuit opened first
Fleming left hand rule, index finger - CORRECT ANSWER - Flux direction for motors
Right hand rule for generators is used to - CORRECT ANSWER - Determine direction of
induced current flow
Orifice plates, Venturi tubes and nozzles belong to a group called - CORRECT
ANSWER - Head meters
A low water fuel cutoff that serves no other purpose - CORRECT ANSWER - Cannot be
rendered inoperative
Modulating pressure controller output - CORRECT ANSWER - Will vary the fuel and air
flow to boiler
Bourdon tube helix shaped because - CORRECT ANSWER - More powerful and greater
degree of rotation
, Run time totals are used for - CORRECT ANSWER - Maintenance management
Second element of two element feed water control system compensates for or offsets -
CORRECT ANSWER - Shrink and swell
On pneumatic transmitter, a movement of the flapper towards nozzle will - CORRECT
ANSWER - Increase feedback bellows pressure
An air atomizing burner utilizes an air pressure of approximately - CORRECT ANSWER -
100kpa
Large capacity burners - CORRECT ANSWER - Should have minimum flow on ignition
Oil is supplied under high pressure to a - CORRECT ANSWER - Mechanical atomizing
burner
In a closed expansion tank system an air separator - CORRECT ANSWER - Directs air
into the expansion tank
A hydramotor valve - CORRECT ANSWER - Helps to prevent puff backs
Unit ventilators are - CORRECT ANSWER - Cabinet type heaters
Radiators can be classified as - CORRECT ANSWER - Wall hung, floor, and window
High efficiency furnaces and heaters range in annual fuel utilization efficiency from -
CORRECT ANSWER - 80-98%
