DGCA Module 05 Quiz Questions and Answers

DGCA Module 05 Digital Techniques / Electronic Instrument Systems (Test 1) introduces the foundation of digital electronics and aircraft instrument technology. It covers number systems, logic circuits, memory units and basic concepts used in modern avionics. Included how digital components and computing elements support accurate and stable aircraft operation.

This test is included binary hex conversion, logic gates, flip flops, registers and data bus concepts. It also explains the working principles of major avionics systems such as EFIS, ECAM, ADC, IRS, FMS, microprocessor and digital engine instruments. Students learn how display behaviour, signal flow, processing stages and system coordination inside the cockpit environment.

This section is develops knowledge of system interfaces, monitoring, systems fault alerts and basic troubleshooting practices needed for reliable avionics performance. The test is best for practice for students for clearing DGCA Module 05 and structured understanding of digital techniques and aircraft electronic instrument systems.

DGCA Module 05 Quiz Questions - Test 1

1 / 40

The function of a commutator is to.

Convert from analogue to binary form

Provide continuous availability of all parameters connected to the system

Provide a sampling in sequence of a number of parameters

2 / 40

A NOR gate with its input inverted has the same logical function as.

An OR gate

An NAND gate

An AND gate

3 / 40

A NAND gate with its input inverted has the same logical function as.

An OR gate

An NOR gate

An AND gate

4 / 40

Which logic gate can be represented as as eries circuit.

AND

Exclusive OR

5 / 40

Which logic gate can be represented as a parallel circuit.

Exclusive OR

AND

6 / 40

The binary number 11010111 expressed as a decimal is.

200

215

115

7 / 40

The octal number 1001 expressed as a decimal is.

135

513

8 / 40

If a data message is made up of 1s and 0s, it is.

Digital

Analog

Binary

9 / 40

What is 345 in binary.

100111001

101011001

110011001

10 / 40

Ananalogue to digital converter is as accurate as.

The amplitude

The frequency

The sampling rate

11 / 40

An EFIS ADI display will show along with pitch and roll.

Flight director bars, autoland, compass rose, altitude

Decision height, autoland, rad alt, altitude

Flight director bars, autoland, altitude, range to altitude, decision height

12 / 40

If the glideslope pointer is below the centre mark the aircraft is.

Below the glideslope

Above the glideslope

On the glideslope

13 / 40

On an EFIS system the weather radar is displayed on the.

EADI

EHSI

FMC CDU

14 / 40

EADI displays show.

Pitch, roll and waypoints.

Heading and weather radar

Pitch and roll altitudes

15 / 40

Convert 011101 Base2 to octal.

16 / 40

A NAND gate with its output inverted has the same logical function as.

An OR gate

An NOR gate

An AND gate

17 / 40

A NOR gate with its output inverted has the same logical function as.

An OR gate

An NAND gate

An AND gate

18 / 40

Decimal base is.

19 / 40

Hexa decimal base is.

20 / 40

Octal base is.

21 / 40

An EADI display of flight director commands are coloured.

Cyan

Magenta

Red

22 / 40

EFIS systems have two control panels, their purpose is.

One for the EADI display and one for the EHSI display

To provide display control by one control panel whilst the other provides a standby

One to control the type of EFIS display and the other to select the source of the information being displayed

23 / 40

What is serial to parallel and vice-versa called.

Switching

Encoder / Decoder

Multiplex / Demultiplex

24 / 40

A thyristor is a device which has.

A positive temperature coefficient

A nagetive temperature coefficient

A temperature coefficient of zero

25 / 40

On a modern 'glass cockpit' aircraft, engine in formation will be displayed on.

FMS

EFIS

ECAM

26 / 40

AND gate calculation.

A.B

A+B

A=A'

27 / 40

OR gate calculation.

A.B

A+B

A=A'

28 / 40

NOT gate calculation.

A.B

A+B

A=A'

29 / 40

What functions are available on the EHSI.

Full arc only

Full arc and Wx only

Full arc, Wx and Map Mode

30 / 40

With radio coupled autopilot, what are the inputs.

ADF and VOR

ILS and VOR

ADF and ILS

31 / 40

An EADI display showing a moving runway moves down during the final stages of an approach. The aircraft must.

Fly up

Fly down

Hold descent path

32 / 40

What is the fixed feature of an ADI.

The aircraft symbol

The lateral deviation bar

The glidslope pointer

33 / 40

On an EADI, the Flight Director command bars show.

The path with respect to the horizon

The actual path with respect to the required path

The required path with respect to the actual path

34 / 40

What instrument includes a display of a rising runway.

ECAM

EHSI

EADI

35 / 40

The logical function of a combinational logic circuit can be described by.

Truth table

Boolean algebra

Both

36 / 40

The basic elements for Classic T format.

Direction, altitude and height

Airspeed, attitude, altitude and direction

Airspeed, attitude, pitch and roll

37 / 40

The EFIS system consists of.

EHSI, Mode control panel, EADI

Mode control Panel, RDMI, EHSI

EADI, EHSI, Symbol generators

38 / 40

Engine parameters are displayed on.

EHSI

ECAM

FMSCDU

39 / 40

Mtcs regulating gates.

Find out of logic gate minimum gate can connect

Input in gate how much% can produce output

Both are correct

40 / 40

Typical displays on an EHSI are.

Engine indication

VOR, Map, Plan and altitude

VOR, Map, Plan and weather radar

Your score is

The average score is 57%

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The function of a commutator is to.

A NOR gate with its input inverted has the same logical function as.

A NAND gate with its input inverted has the same logical function as.

Which logic gate can be represented as as eries circuit.

Which logic gate can be represented as a parallel circuit.

The binary number 11010111 expressed as a decimal is.

The octal number 1001 expressed as a decimal is.

If a data message is made up of 1s and 0s, it is.

What is 345 in binary.

Ananalogue to digital converter is as accurate as.

An EFIS ADI display will show along with pitch and roll.

If the glideslope pointer is below the centre mark the aircraft is.

On an EFIS system the weather radar is displayed on the.

EADI displays show.

Convert 011101 Base2 to octal.

A NAND gate with its output inverted has the same logical function as.

A NOR gate with its output inverted has the same logical function as.

Decimal base is.

Hexa decimal base is.

Octal base is.

An EADI display of flight director commands are coloured.

EFIS systems have two control panels, their purpose is.

What is serial to parallel and vice-versa called.

A thyristor is a device which has.

On a modern 'glass cockpit' aircraft, engine in formation will be displayed on.

AND gate calculation.

OR gate calculation.

NOT gate calculation.

What functions are available on the EHSI.

With radio coupled autopilot, what are the inputs.

An EADI display showing a moving runway moves down during the final stages of an approach. The aircraft must.

What is the fixed feature of an ADI.

On an EADI, the Flight Director command bars show.

What instrument includes a display of a rising runway.

The logical function of a combinational logic circuit can be described by.

The basic elements for Classic T format.

The EFIS system consists of.

Engine parameters are displayed on.

Mtcs regulating gates.

Typical displays on an EHSI are.

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