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737 technical questions at 737theory.com

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Test your knowledge with our 15 question free test!

1 / 15

How is the engine fuel heated prior to entering the engine?

Heated by passing through engine oil heat exchanger only.

Engine fuel is not heated until it is burnt in the engine combustion chamber.

Heated only by Kinetic energy imparted due to pressure increase passing through the 1st and 2nd stage engine fuel pumps.

Heated by passing through IDG oil heat exchanger and engine oil heat exchanger.

2 / 15

The maximum pressure differential is:

7.90 PSI.

8.45 PSI.

9.10 PSI.

8.65 PSI.

3 / 15

The accessory gearboxes receive drive from:

IDG.

N2 Rotor.

N1 Rotor.

ENG HYD Pumps.

4 / 15

The wing anti-ice system provides bleed air to:

Leading edge flaps and all leading edge slats.

All leading edge slats.

Leading edge flaps and the three inboard leading edge slats.

The three inboard leading edge slats.

5 / 15

Following an unpressurised takeoff, when is the first engine bleed switch positioned to ON?

Prior to 400 ft above the ground.

After passing through 2000 ft above the ground.

After the gear is up and obstacle clearance has been achieved.

At not less than 400 ft, and prior to 2000 ft above field elevation.

6 / 15

How can the Emergency Exit Lights be illuminated?

By lifting the guard and pushing the ON switch located on the AFT attendant panel.

If the three position switch located on the FWD overhead panel is selected to ON.

All of these answers are correct.

Automatically if the three position switch located on the FWD overhead panel switch is in the ARMED position and electrical power to DC Bus 1 fails or if AC power turned off.

7 / 15

How is fuel heated prior to reaching the engine?

An electrical fuel heater.

The main engine oil cooler.

The main engine oil cooler and the IDG oil cooler.

The IDG oil cooler.

8 / 15

At what altitude will the FLARE manoeuvre start during AUTOLAND?

50 ft RA.

500 ft AGL.

50 ft AGL.

350 ft RA.

9 / 15

How are the Engine Bleed Air valves powered?

They are pneumatically activated and AC operated.

They are AC activated and pneumatically operated.

They are pneumatically activated and DC operated.

They are DC activated and pneumatically operated.

10 / 15

The wing-span of the 737-800 is:

37.95m

37.59m

35.79m

39.75m

11 / 15

If an altitude restriction is entered before TOD, the aircraft will commence the descent early to follow a new idle descent path to achieve the descent restriction. If ALT INTV is then selected after the descent restriction, which of the paths will the aircraft follow?

Descends to achieve restriction, then continues on that new idle descent path until new commands are entered.

Descends to achieve restriction then descends at 1000 fpm until intercepting original idle descent path.

Descends to achieve restriction, then continues steady descent to End of Descent.

Descends to achieve restriction then maintains level flight until intercepts the original idle descent path.

12 / 15

What are the 737-800s maximum latitude certifications?

All latitudes

Above 72N or below 50S.

Above 82N or below 82S

All of these answers are correct.

13 / 15

Normal DC indications are:

26 +/- 10 V.

26 +/- 12 V.

26 +/- 4 V.

28 +/- 4 V.

14 / 15

In flight if APU is the only source of electrical power:

All galley busses are automatically shed.

Only galley bus A and B are automatically shed.

No galley busses are automatically shed.

Only galley bus C and D are automatically shed.

15 / 15

With A/T engaged, what condition could cause the throttles to be separated (not aligned)?

One engine A/T suffering a system fault.

One EEC in ON, one EEC in ALTN.

Throttle stagger cannot occur with A/T engaged as both throttle servo motors work identically to position the throttles symmetrically.

Both EECs in ALTN.

Your score is

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