3B2 - Test (I) Questions With Complete Solutions
At a power plant, a certain amount of record keeping is mandatory. This record keeping is carried out in
order to comply with the:
1. Provincial Boilers and Pressure Vessels Act and Regulations.
2. Rules of the Provincial Worker's Compensation Board.
3. ASME codes.
4. Insurance companies. - (ANSWER)1, 2, 4
The main application of a HRSG is: - (ANSWER)Generating steam using the exhaust gas of a gas turbine
as a heat source
A jacking oil pump is used to:
1. Make slight adjustments to the turbine bearing housings during overhaul to maintain alignment.
2. Supply oil under the shaft of the bearing for a specific time.
3. Supply oil to the bearings under the shaft at all times so lubrication is assured.
4. Supply a low volume of oil at high pressure. - (ANSWER)2, 4
Small turbines, used to drive auxiliary equipment, are usually lubricated by: - (ANSWER)Ring-oiled
bearings
A simple condenser with low installation cost would be: - (ANSWER)Air-cooled
The lobe type compressor runs at speeds up to about _____ RPM. - (ANSWER)1750
Which of the following are the two broad classifications of preventive maintenance?
1. Actual work.
2. Paper work.
3. Mechanical work.
4. Temporary work. - (ANSWER)2, 3
,3B2 - Test (I) Questions With Complete Solutions
The oil filter in a diesel engine lubricating system is: - (ANSWER)Between the pump and oil cooler
Centrifugal compressors are commonly used for: - (ANSWER)Large volume, low-pressure applications
To ensure a tight seal, a steam turbine balance piston is fitted with _____. - (ANSWER)Labyrinth seals
A capillary tube is mainly used on: - (ANSWER)Small household systems
When shutting down a turbine, the first thing done is: - (ANSWER)Reduce the load to zero
The choke in a carburetor produces a _____ mixture for cold engine starts. - (ANSWER)Rich air-oil
In a Horizontal Rectangular Direct Fired Heater, the _____ is/are mounted on the floor of the furnace
and extend along a center line from the front to the back of the furnace. - (ANSWER)Burners
When lighting a fired heater, the step immediately following purging of the furnace is: -
(ANSWER)Energizing the electric igniter
The oil separator is always inserted in the system: - (ANSWER)In the discharge line
The axial flow compressor's basic operating principle is similar to a: - (ANSWER)Reaction turbine in
reverse
In a cogeneration system the thermal load can be controlled by which two of the following strategies:
1. Fixed production of a minimum thermal energy
2. Varying requirements for thermal energy
3. Base loaded for maximum thermal energy
4. Topping for minimum thermal energy - (ANSWER)1, 2
, 3B2 - Test (I) Questions With Complete Solutions
The automatic expansion valve is controlled by: - (ANSWER)The evaporator pressure
In a reaction turbine:
1. Velocity increases in the moving blades
2. Velocity decreases in the stationary blades
3. Pressure drops in the moving blades
4. Pressure drops in the stationary blades - (ANSWER)3, 4
Oil in a typical turbine lube oil system is supplied to various components at _____ pressure/s. -
(ANSWER)2
The closed cycle gas turbine has the advantages of:
1. Higher pressures throughout the cycle
2. The working fluid is clean
3. The working fluid must support combustion
4. Low grade fuels may be used - (ANSWER)1, 2, 4.
To allow for reasonable separation in an oil/water separation pond, which is a component of an
industrial wastewater treatment plant, the separator should have sufficient capacity to hold the average
flow for: - (ANSWER)2 to 4 days.
A barring gear consists of an electric motor and several sets of reducing gears to turn the turbine shaft
at a low speed. It is used:
1. After stopping a hot turbine to prevent "hogging"
2. Only on small turbine
3. Continually when the turbine is not operating
4. For several hours prior to startup - (ANSWER)1, 4
An aerobic material is one that has: - (ANSWER)Dissolved oxygen.
At a power plant, a certain amount of record keeping is mandatory. This record keeping is carried out in
order to comply with the:
1. Provincial Boilers and Pressure Vessels Act and Regulations.
2. Rules of the Provincial Worker's Compensation Board.
3. ASME codes.
4. Insurance companies. - (ANSWER)1, 2, 4
The main application of a HRSG is: - (ANSWER)Generating steam using the exhaust gas of a gas turbine
as a heat source
A jacking oil pump is used to:
1. Make slight adjustments to the turbine bearing housings during overhaul to maintain alignment.
2. Supply oil under the shaft of the bearing for a specific time.
3. Supply oil to the bearings under the shaft at all times so lubrication is assured.
4. Supply a low volume of oil at high pressure. - (ANSWER)2, 4
Small turbines, used to drive auxiliary equipment, are usually lubricated by: - (ANSWER)Ring-oiled
bearings
A simple condenser with low installation cost would be: - (ANSWER)Air-cooled
The lobe type compressor runs at speeds up to about _____ RPM. - (ANSWER)1750
Which of the following are the two broad classifications of preventive maintenance?
1. Actual work.
2. Paper work.
3. Mechanical work.
4. Temporary work. - (ANSWER)2, 3
,3B2 - Test (I) Questions With Complete Solutions
The oil filter in a diesel engine lubricating system is: - (ANSWER)Between the pump and oil cooler
Centrifugal compressors are commonly used for: - (ANSWER)Large volume, low-pressure applications
To ensure a tight seal, a steam turbine balance piston is fitted with _____. - (ANSWER)Labyrinth seals
A capillary tube is mainly used on: - (ANSWER)Small household systems
When shutting down a turbine, the first thing done is: - (ANSWER)Reduce the load to zero
The choke in a carburetor produces a _____ mixture for cold engine starts. - (ANSWER)Rich air-oil
In a Horizontal Rectangular Direct Fired Heater, the _____ is/are mounted on the floor of the furnace
and extend along a center line from the front to the back of the furnace. - (ANSWER)Burners
When lighting a fired heater, the step immediately following purging of the furnace is: -
(ANSWER)Energizing the electric igniter
The oil separator is always inserted in the system: - (ANSWER)In the discharge line
The axial flow compressor's basic operating principle is similar to a: - (ANSWER)Reaction turbine in
reverse
In a cogeneration system the thermal load can be controlled by which two of the following strategies:
1. Fixed production of a minimum thermal energy
2. Varying requirements for thermal energy
3. Base loaded for maximum thermal energy
4. Topping for minimum thermal energy - (ANSWER)1, 2
, 3B2 - Test (I) Questions With Complete Solutions
The automatic expansion valve is controlled by: - (ANSWER)The evaporator pressure
In a reaction turbine:
1. Velocity increases in the moving blades
2. Velocity decreases in the stationary blades
3. Pressure drops in the moving blades
4. Pressure drops in the stationary blades - (ANSWER)3, 4
Oil in a typical turbine lube oil system is supplied to various components at _____ pressure/s. -
(ANSWER)2
The closed cycle gas turbine has the advantages of:
1. Higher pressures throughout the cycle
2. The working fluid is clean
3. The working fluid must support combustion
4. Low grade fuels may be used - (ANSWER)1, 2, 4.
To allow for reasonable separation in an oil/water separation pond, which is a component of an
industrial wastewater treatment plant, the separator should have sufficient capacity to hold the average
flow for: - (ANSWER)2 to 4 days.
A barring gear consists of an electric motor and several sets of reducing gears to turn the turbine shaft
at a low speed. It is used:
1. After stopping a hot turbine to prevent "hogging"
2. Only on small turbine
3. Continually when the turbine is not operating
4. For several hours prior to startup - (ANSWER)1, 4
An aerobic material is one that has: - (ANSWER)Dissolved oxygen.
