Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Power & Distribution > P&D > Flashcards

P&D Flashcards

1
Q

Can batteries be portable and static

A

yes they can

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the uses of batteries

A

Torches
Watches
Hearing aids
Cars/lorries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What 2 categories can batteries be split into?

A

Primary

Secondary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the 4 main characteristics of a primary battery?

A

Not rechargeable
Known as ‘dry cells’
Once discharged they are thrown away
Normally small

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the 4 main characteristics of secondary batteries?

A

Rechargeable
Know as ‘wet cells’
Require specialist recharging equipment
Variety of sizes (AAA up to VERY large)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the voltage difference of a charge and discharge cell?

A

discharged: 1.75

charged 2.1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the difference between charged and discharged per cell

A

0.35 V

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is RICE?

A

Rationalised Internal Communications Equipment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

7 types of breakers in distribution system?

A 
Supply breaker
Interconnector breaker
Shore supply/ship alongside breaker
Electric motor breaker
Motor generator feeder breaker
Motor generator supply breaker
Diesel generator alternative supply breaker
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what is an edp?

A

electrical distribution panel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what are the different types of EDP connected to a type 23

A

Type 1
Type 2
Type 3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the two sources of 450V if the motor generators are lost?

A

Converted diesel generator

Emergency generator

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Inside the panel on a converted diesel engine there is a switch with four positions, what are these switches for?

A

440V generator test
440V generator
600V generator
600V generator test

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What does the switchboard supply?

A 
Steering motors
High pressure salt water pumps
Surgery/sickbay
Smoke clearance exhaust fans
Portable pump sockets
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Type 3 EDP has what?

A

Has a single input
Multiple circuits feeding off the input
Is a shedable EDP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

9 basic components of the electric motor system

A 
Air filter
Cooling fans
Yoke
Compole
Main pole
Armature
Commutator
Brush gear
17
Q

6 stages of electrical propulsion motor cooling

A
  1. Cool air is drawn through a filter into the motor
  2. This is done by 2 forced ventilation fans
  3. The air is then forced over the main poles, armature, commutator and brush gear
  4. The cool air absorbs the heat generated in the motor
  5. It is exhausted from the motor at the commutator end
  6. The air is then forced through a water cooled heat exchanger into the engine room
18
Q

what does IEP stand for

A

Integrated Electric Propulsion system

Power & Distribution (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions