Brainscape's Knowledge GenomeTM

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


See full index

Module 11B > 11.16 - Pneumatic - 5q > Flashcards

11.16 - Pneumatic - 5q Flashcards

1
Q

What are the two types of engine driven pumps?

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

Gyro pneumatic power = what type of pump?

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

Low pressure pneumatic = ? (pressure/temp)

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

What position is the bleed valve fail safe?

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

Where is pressure sensing for pressure control located?

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

Spill valve of a blower is in what position at high altitudes?

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

Where is pneumatic pressure taken from for indication?

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

What should be noted about the air in a dry air pump?

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

What happens if the Drain plug is left open?

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Actuators require what?

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

What type Bleed has higher priority?

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

Maintainer valve does what?

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

What does the Regulator valve do?

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

What happens if the moisture seperator is purged?

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The pneumatic system pump is what type?

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

HP pneumatic source uses what type of pump?

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What prevents 2 separate compressors driving each other ?

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Compressor provides what type of displacement?

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What does ATA 36 cover?

A

ATA 36 = Pneumatic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Where is the water trap located in a HP system?

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What system can retract the LG?

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What happens LP air before entering the main pneumatic gallery?

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

De hydrater = ? what material

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

PRSOV = ?

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

The purpose of an oil and water trap in a pneumatic system is to:

Extract water from the pump lubricating system
Extract liquid from the air.
Lubricate the oil pump

A

Extract liquid from the air. X

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

The two types of engine driven pumps are called:

Wet and dry lubricated pumps
Pressure suction pumps
Vacuum and venturi pumps

A

Wet and dry lubricated pumps X

27
Q

The disadvantage of a vacuum venturi system over an engine driven air pump, to drive aircraft gyro instruments:

More air cleaning is required for a vacuum venturi system
The aircraft must be moving forward at a certain speed for a vacuum to be created.
Engine driven air pumps can be operated at lower altitudes

A

The aircraft must be moving forward at a certain speed for a vacuum to be created. X

28
Q

Wet lubricated air pumps:

Require lubrication
Have self-contained lubrication
Can only be lubricated on the ground

A

Require lubrication X

29
Q

A pneumatic gyro instrument system can be operated:

Only by a pressure pump
By a venturi vacuum pump
By suction pump only

A

By a venturi vacuum pump X

30
Q

An overheat detector in the wing leading edge area signals an overheat state. This indicates

the bleed air system is to hot
there is an external leak in the ducting
either 1) or 2) is correct

A

there is an external leak in the ducting X

31
Q

What would be the normal values for pressure and temperature in a low pressure pneumatic system:

15 psi and 50 c
25 psi and 100c
45 psi and 200c

A

45 psi and 200c

32
Q

What is the fail safe position for a main bleed valve/ pneumatic system main valve is:

Open
closed
last selected

A

Open X

33
Q

What precautions should be observed when using air from a ground cart:

aircraft must have electrical power
fire extinguisher on hand
APU circuit breakers should be pulled

A

aircraft must have electrical power X

34
Q

Pressure sensing of a pneumatic system for the purposes of pressure control is obtained from:

up stream of the bleed valve
downstream of the bleed valve
downstream of the pack valve

A

downstream of the bleed valve X

35
Q

The spill valve of a “blower” (compressor) air conditioning system serves what purpose:

At high altitudes it opens to produce more air
At low altitudes it opens to produce more air
It modulates depending on altitude, closing at higher altitudes

A

It modulates depending on altitude, closing at higher altitudes X

36
Q

Where is the silencer located in a “blower” air conditioning system?

At the inlet of the blower
At the outlet of the blower.
At the inlet to the cabin

A

At the outlet of the blower. X

37
Q

Pneumatic rain removal systems

use engine bleed air at high velocity to remove water droplets from windscreen.
use a pneumatic motor to drive windscreen wipers
are not permitted on large transport aircraft

A

use engine bleed air at high velocity to remove water droplets from windscreen. X

38
Q

A pneumatic pressure indicator takes its indications from

compressor inlet
compressor outlet
reservoir.

A

reservoir. X

39
Q

What is important about the air entering a dry air pump

must be filtered.
must be pressure controlled
must be temperature controlled

A

must be filtered. X

40
Q

On a high pressure pneumatic system, if the drain plug for oil and water is left open for long periods of time, the system would

lose all pressure
lose pneumatic pressure partially
lose pressure from the compressor side only

A

lose pressure from the compressor side only X

41
Q

Vacuum Dry air pumps are lubricated by:

the carbon in there slides
oil in the air
grease

A

the carbon in there slides X

42
Q

Actuators in pneumatic systems:

are not normally damped as the air is a buffer
do not needing damping as they are slow
require damping as they are violent in operation.

A

require damping as they are violent in operation. X

43
Q

The APU low pressure bleed is utilised by:

given it a higher priority than the engine bleed.
given it a lower priority than engine bleed
the pilot decides which to use

A

given it a higher priority than the engine bleed. X

44
Q

The low pressure pneumatic ground bleed air connector is a quick release:

1”
8”
3”

A

3” X

45
Q

A pneumatic maintainer valves purpose:

is to maintain pressure to the reservoir
is to maintain pressure to essential systems
is to maintain pressure to the accumulator

A

is to maintain pressure to essential systems X

46
Q

Which of the following units on a high pressure pneumatic system offloads the compressor to control air pressure:

Pressure Regulator valve
Pressure maintainer valve
Pressure relief valve

A

Pressure Regulator valve X

47
Q

What action does the spring inside a pressure reducing valve take in order to increase the pressure on the lower pressure service side of the valve:

The spring compresses to close the valve more, trapping air downstream.
The spring is not involved in controlling the pressure, it is for shutoff only.
The spring extends to open the valve more, admitting more air.

A

The spring extends to open the valve more, admitting more air. X

48
Q

What action does the bellows take in order to regulate the pressure in a pressure reducing valve of a pneumatic system:

a) The bellows modulates the against the spring to close the inlet valve plunger.
b) the bellows modulates against the spring to open the inlet valve plunger
c) the bellows modulates, directly releasing the pressure

A

a) The bellows modulates the against the spring to close the inlet valve plunger.

49
Q

The plate valve compensates

A

The plate valve compensates for different velocities moving backwards and forwards. Faster in one direction and slower in the other.
Provide less damping action.

50
Q

Bleed air cooler takes a tap off:

A

Bleed air cooler takes a tap off the fan air valve.

51
Q

Pressure regulation sensing is done -

A

Pressure regulation sensing is done -Downstream and Upstream indications

52
Q

Pressure regulation valve -

A

Pressure regulation valve - regulates pressure to a constant valve
If elec power goes - The valve opens

53
Q

LP check valve

A

LP check valve prevents reverse flow to the engine low stage compressor

54
Q

High pressure shut off valve

A

Opened at low RPM

55
Q

How do you damp a pneumatic oleo?

A

Grease and the plate valve (flapper plate)

56
Q

The HPV closes if:

A

The HPV closes if:
*The high stage pressure exceeds 100 PSI or
*The low stage pressure exceeds 36 PSI or
*The pressure regulating valve (PRV) is closed.
(The PRV discharges the HSV opening pressure to ambient via the coupling
sense line)

57
Q

Engine bleed is inhibited if :

A

Engine bleed is inhibited if the APU bleed is selected.

58
Q

IVG’s in APU protect what?

A

High EGT of the power section

59
Q

The bleed air quantity is limited by the APU :

A

The bleed air quantity is limited by the APU Exhaust Gas
Temperature ( EGT ).
EGT increases with the APU load

60
Q

Bleed or electrical has priority in the APU

A

APU electrical power supply has priority

61
Q

Warnings
****

A

“PNEUM TEMP HI ” This warning light comes on if the pneumatic temperature exceeds a set threshold (255 C)
“PNEUM MANFLD FAIL ’ This warning light comes on if a duct rupture or a leak in a pneumatic manifold is

62
Q

Typical Caution lights are

A

Typical Caution lights are
PNEUM ABNORM ” This caution light comes on if the pneumatic pressure or temperature is abnormal or valves and sensors fail

**USE ENG PNEUM SUPPLY ” This caution light comes on if the pneumatic system is still supplied by the APU to remember the pilots that they must use the engine pneumatic supply system***

63
Q

Three different techniques are applied to monitor a pneumatic manifold leak or duct rupture

A

Three different techniques are applied to monitor a pneumatic manifold leak or duct rupture
1. Leak detection by thermal switches
2. Leak detection by manifold failure loops
3. Leak detection by pressure switches

64
Q

Rate of rise -

A

Thermocouple

Module 11B (42 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions