Test your basic knowledge |

Power Engineering 5

Instructions:

Answer 40 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. For a particular air sample - wet and dry bulb temperatures when plotted on a psychometric chart will help determine
Cooling and aerating the steam in a steam condenser
1. what the relative humidity is. 2. what the dew point is. 3. how much moisture is in the air. 4. what the dryness factor is.
1. little or no water requirements 2. low installation cost 3. high power to mass ratio
Prevent the shaft from moving axially with the thrust

2. During the start- up of some reaction steam turbines - the thrust block is pushed against a stop in the direction of the inlet for...
Maximum axial seal clearance
1. RPM's decrease 2. centrifugal force on governor decreases 3. spring causes governor flyballs to move inward4. governor linkage causes steam valve to open 5. more steam is admitted 6. RPM's increase
The liquid refrigerant absorbs heat and boils
1. design - construction and installation of refrigerating systems 2. operation and inspection of refrigerating systems

3. The main purpose of a cooling tower is to...
B2
To remove heat from the condensing water
1. imperfect injection 2. worn injectors 3. injection timed too early 4. improper grade of fuel
Reaction turbine

4. CSA B-52 applies to...
1. design - construction and installation of refrigerating systems 2. operation and inspection of refrigerating systems
1. sliding vane 2. rotary lobe 3. rotary screw
Generator - condenser - receiver - expansion valve - evaporator - absorber - aqua pump.
1. fuel costs are high 2. the operating noise level is high 3. low thermal efficiency

5. Brine used in ammonia indirect systems is usually made with
Is corrosive to non - ferrous metals in the presence of water
Regulate the flow of refrigerant to the evaporator
The inlet valves
Calcium chloride

6. Before starting a small non - condensing turbine which of the following procedures would be performed?
1. high temperature application 2. where chemical contamination is possible 3. on electrical equipment
Not mix with mineral oils
1. rotate the turbine shaft periodically to prevent it from sagging 2. rotate the shaft at slow speed when the turbine is not in service
1. Drain the condensate from steam line and turbine casing. 2. Check oil level in bearing sumps or reservoir.

7. Of all the positive displacement air compressors - the ______ compressor can deliver the highest discharge pressure.
1. imperfect injection 2. worn injectors 3. injection timed too early 4. improper grade of fuel
1. sliding vane 2. rotary lobe 3. rotary screw
Reciprocating
1. Turbine casing drain coolers 2. gland steam condensers 3. air ejectors

8. The component that allows for the switching from heating to cooling mode on an air heat pump is called a/an __________ valve?
Reversing
1. design - construction and installation of refrigerating systems 2. operation and inspection of refrigerating systems
1. RPM's decrease 2. centrifugal force on governor decreases 3. spring causes governor flyballs to move inward4. governor linkage causes steam valve to open 5. more steam is admitted 6. RPM's increase
Calcium chloride

9. The free piston gas generator in a gas turbine cycle will take the place of...
1. Turbine casing drain coolers 2. gland steam condensers 3. air ejectors
Blading - shaft - and seals
The compressor and combustor
1. what the relative humidity is. 2. what the dew point is. 3. how much moisture is in the air. 4. what the dryness factor is.

10. Ammonia refrigerant will
Reciprocating
1. design - construction and installation of refrigerating systems 2. operation and inspection of refrigerating systems
Not mix with mineral oils
Blading - shaft - and seals

11. In a dual shaft gas turbine the load is driven by a
Blading - shaft - and seals
1. rotate the turbine shaft periodically to prevent it from sagging 2. rotate the shaft at slow speed when the turbine is not in service
Prevent the shaft from moving axially with the thrust
Low pressure turbine

12. Steam turbine stationary nozzles serve to...
Blading - shaft - and seals
1. high temperature application 2. where chemical contamination is possible 3. on electrical equipment
B2
1. decrease steam pressure 2. increase steam

13. Air in a surface condenser
1. design - construction and installation of refrigerating systems 2. operation and inspection of refrigerating systems
1. little or no water requirements 2. low installation cost 3. high power to mass ratio
1. increases the pressure 2. retards heat transfer 3. is cooled before being removed
1. what the relative humidity is. 2. what the dew point is. 3. how much moisture is in the air. 4. what the dryness factor is.

14. Solid lubricants are used for...
Forged steel
1. high temperature application 2. where chemical contamination is possible 3. on electrical equipment
1. design - construction and installation of refrigerating systems 2. operation and inspection of refrigerating systems
Reversing

15. Condenser cooling water is usually controlled by...
1. Turbine casing drain coolers 2. gland steam condensers 3. air ejectors
The fuel is injected into the cylinder by the injector
Solenoid valves
The inlet valves

16. The purpose of a thrust bearing is to...
Low pressure turbine
Cooling and aerating the steam in a steam condenser
Prevent the shaft from moving axially with the thrust
Reciprocating

17. Surging of dynamic air compressors can produce severe shock to the system and may be violent enough to damage the...
Blading - shaft - and seals
Cooling and aerating the steam in a steam condenser
The inlet valves
Forged steel

18. If the speed of a turbine decreases due to additional generator loading - the correct sequence of events that occurs in the speed governor is as follows

19. The main components of an lithium bromide absorption refrigeration system are...
1. what the relative humidity is. 2. what the dew point is. 3. how much moisture is in the air. 4. what the dryness factor is.
Generator - condenser - receiver - expansion valve - evaporator - absorber - aqua pump.
Calcium chloride
The liquid refrigerant absorbs heat and boils

20. Barring or turning gears are used to...
The compressor and combustor
Forged steel
1. imperfect injection 2. worn injectors 3. injection timed too early 4. improper grade of fuel
1. rotate the turbine shaft periodically to prevent it from sagging 2. rotate the shaft at slow speed when the turbine is not in service

21. Refrigeration systems are purged
Reciprocating
To rid the system of non - condensable gases
Not mix with mineral oils
1. inspect and clean air intake filters 2. inspect and clean air intake ducts 3. water wash the compressor blades 4. use good quality fuel

22. In the common rail system used for injection of fuel into the diesel engine cylinder
Reversing
Generator - condenser - receiver - expansion valve - evaporator - absorber - aqua pump.
Blading - shaft - and seals
The fuel is injected into the cylinder by the injector

23. The disadvantages of a gas turbine include
Reciprocating
1. fuel costs are high 2. the operating noise level is high 3. low thermal efficiency
1. RPM's decrease 2. centrifugal force on governor decreases 3. spring causes governor flyballs to move inward4. governor linkage causes steam valve to open 5. more steam is admitted 6. RPM's increase
Regulate the flow of refrigerant to the evaporator

24. The condenser extraction (condensate) pump normally supplies cooling Water to the...
Cooling and aerating the steam in a steam condenser
1. Turbine casing drain coolers 2. gland steam condensers 3. air ejectors
Regulate the flow of refrigerant to the evaporator
It sprays jets of cooling water into the exhaust steam to condense it

25. In the internal combustion engine - the purpose of the rocker arm is to operate
Calcium chloride
Reciprocating
Is corrosive to non - ferrous metals in the presence of water
The inlet valves

26. NH3 (R-717) refrigerant
1. rotate the turbine shaft periodically to prevent it from sagging 2. rotate the shaft at slow speed when the turbine is not in service
Is corrosive to non - ferrous metals in the presence of water
The fuel is injected into the cylinder by the injector
Forged steel

27. Compressed air is not used for...
Cooling and aerating the steam in a steam condenser
The fuel is injected into the cylinder by the injector
1. RPM's decrease 2. centrifugal force on governor decreases 3. spring causes governor flyballs to move inward4. governor linkage causes steam valve to open 5. more steam is admitted 6. RPM's increase
Low pressure turbine

28. The jet condenser is so named because...
Solenoid valves
To remove heat from the condensing water
It sprays jets of cooling water into the exhaust steam to condense it
The compressor and combustor

29. Refrigeration may be defined as...
A controlled process of removing heat from a substance
Reaction turbine
1. imperfect injection 2. worn injectors 3. injection timed too early 4. improper grade of fuel
Regulate the flow of refrigerant to the evaporator

30. The deaerator is usually operated to maintain constant
Level
To rid the system of non - condensable gases
Blading - shaft - and seals
It sprays jets of cooling water into the exhaust steam to condense it

31. The purpose of the expansion valve is to...
The inlet valves
Blading - shaft - and seals
Regulate the flow of refrigerant to the evaporator
Reversing

32. A pressure drop created across the turbine blades by the expanding steam is the basic operating principle of the...
The inlet valves
1. Turbine casing drain coolers 2. gland steam condensers 3. air ejectors
Reaction turbine
Is corrosive to non - ferrous metals in the presence of water

33. Three different designs of rotary compressors are...
1. Turbine casing drain coolers 2. gland steam condensers 3. air ejectors
Reciprocating
1. design - construction and installation of refrigerating systems 2. operation and inspection of refrigerating systems
1. sliding vane 2. rotary lobe 3. rotary screw

34. Connecting rods are usually made of...
To remove heat from the condensing water
Reversing
Cooling and aerating the steam in a steam condenser
Forged steel

35. A gas turbine would be chosen where these characteristics are advantageous
1. Drain the condensate from steam line and turbine casing. 2. Check oil level in bearing sumps or reservoir.
Solenoid valves
Cooling and aerating the steam in a steam condenser
1. little or no water requirements 2. low installation cost 3. high power to mass ratio

36. Rough running of a diesel engine is caused by...
B2
Reversing
The compressor and combustor
1. imperfect injection 2. worn injectors 3. injection timed too early 4. improper grade of fuel

37. The evaporator is where
B2
The liquid refrigerant absorbs heat and boils
Generator - condenser - receiver - expansion valve - evaporator - absorber - aqua pump.
1. RPM's decrease 2. centrifugal force on governor decreases 3. spring causes governor flyballs to move inward4. governor linkage causes steam valve to open 5. more steam is admitted 6. RPM's increase

38. In order to keep the gas pass of a gas turbine clean - the following must be done
1. imperfect injection 2. worn injectors 3. injection timed too early 4. improper grade of fuel
At least as large as the compressor intake
B2
1. inspect and clean air intake filters 2. inspect and clean air intake ducts 3. water wash the compressor blades 4. use good quality fuel

39. The inlet pipe to the compressor must be...
1. fuel costs are high 2. the operating noise level is high 3. low thermal efficiency
Generator - condenser - receiver - expansion valve - evaporator - absorber - aqua pump.
At least as large as the compressor intake
Not mix with mineral oils

40. Ammonia (R-717) is classified in Safety Group
It sprays jets of cooling water into the exhaust steam to condense it
Calcium chloride
At least as large as the compressor intake
B2

Search BasicVersity Tests

Browse BasicVersity

3d Computer Modeling
Study | Quiz | Subjects: it-skills, multimedia | Questions: 150+
Actionscript
Study | Quiz | Subjects: it-skills, multimedia | Questions: 10+
Adobe Flash
Study | Quiz | Subjects: it-skills, multimedia, flash | Questions: 50+
Adobe Illustrator
Study | Quiz | Subjects: it-skills, multimedia | Questions: 100+
Adobe Illustrator Shortcuts
Study | Quiz | Subject: it-skills | Questions: 50+
Adobe Indesign Publishing
Study | Quiz | Subject: it-skills | Questions: 150+
Adobe Photoshop CS 2 - CS 3
Study | Quiz | Subject: it-skills | Questions: 70+
Adobe Photoshop CS 5
Study | Quiz | Subject: it-skills | Questions: 140+
Adobe Photoshop CS 5 Keyboard Shortcuts
Study | Quiz | Subject: it-skills | Questions: 170+
Adobe Photoshop Graphic Design
Study | Quiz | Subject: it-skills | Questions: 100+
Adobe Photoshop Tools And Commands
Study | Quiz | Subject: it-skills | Questions: 110+
Adobe Premiere Keyboard Shortcuts
Study | Quiz | Subject: it-skills | Questions: 50+
Adobe Premiere Pro
Study | Quiz | Subject: it-skills | Questions: 50+
After Effects Keyboard Shortcuts
Study | Quiz | Subject: it-skills | Questions: 170+
Agile Development
Study | Quiz | Subject: it-skills | Questions: 50+
Agile Scrum Methodology
Study | Quiz | Subject: it-skills | Questions: 10+
Ajax
Study | Quiz | Subject: it-skills | Questions: 30+
Android Programming
Study | Quiz | Subject: it-skills | Questions: 130+
Animation
Study | Quiz | Subject: it-skills | Questions: 60+
Asp.net Programming
Study | Quiz | Subject: it-skills | Questions: 100+

1 of 109 pages [Next] [Last Page]

Test your basic knowledge |

Power Engineering 5

Search BasicVersity Tests

Browse BasicVersity

3d Computer Modeling

Actionscript

Adobe Flash

Adobe Illustrator

Adobe Illustrator Shortcuts

Adobe Indesign Publishing

Adobe Photoshop CS 2 - CS 3

Adobe Photoshop CS 5

Adobe Photoshop CS 5 Keyboard Shortcuts

Adobe Photoshop Graphic Design

Adobe Photoshop Tools And Commands

Adobe Premiere Keyboard Shortcuts

Adobe Premiere Pro

After Effects Keyboard Shortcuts

Agile Development

Agile Scrum Methodology

Ajax

Android Programming

Animation

Asp.net Programming