Explore topic-wise MCQs in Avionics.

This section includes 19 Mcqs, each offering curated multiple-choice questions to sharpen your Avionics knowledge and support exam preparation. Choose a topic below to get started.

1.

The solid-state instruments are of higher accuracy than mechanical systems.

A. True
B. False
Answer» B. False
2.

What is the operating voltage of Solid-state integrated standby instrument?

A. 11V DC
B. 28V DC
C. 5V DC
D. 115V DC
Answer» C. 5V DC
3.

The putrifactive anaerobes grow best in the

A. medium acid canned foods
B. low acid canned foods
C. any of these
D. high acid canned foods
Answer» E.
4.

The most important kind of chemical spoilage of canned foods is the hydrogen swell which is favored by

A. increasing temperature of storage
B. increasing acidities of foods
C. all of these
D. imperfection in the tinning and lacquering
Answer» D. imperfection in the tinning and lacquering
5.

The presence of viable non-spore forming bacteria in heat process canned foods indicates leakage of the container. Which of the following is responsible for the spoilage of leaky cans?

A. Cooling water
B. Plant equipment
C. High sugar content
D. Highly acidic medium
Answer» B. Plant equipment
6.

The butyric acid type of fermentation in acid or medium acid foods, with swelling of the container by the carbon dioxide and hydrogen gas is caused by

A. pasteurianum
B. butyricum
C. sporogenes
D. both ( and (
Answer» E.
7.

Which of the following species can cause bitterness, acidity and curdling in canned milk, cream and evaporated milk?

A. Clostridium
B. Bacillus
C. Saccharomyces
D. both ( and (
Answer» C. Saccharomyces
8.

Canned sweetened condensed milk may become thickened by

A. Clostridium species
B. Bacillus species
C. Saccharomyces species
D. Micrococcus species
Answer» E.
9.

Sulfur stinker spoilage, caused by is uncommonly found in

A. medium acid foods
B. low acid foods
C. any of these
D. high acid foods
Answer» C. any of these
10.

WHAT_IS_THE_OPERATING_VOLTAGE_OF_SOLID-STATE_INTEGRATED_STANDBY_INSTRUMENT??$

A. 11V DC
B. 28V DC
C. 5V DC
D. 115V DC
Answer» C. 5V DC
11.

The_solid-state_instruments_are_of_higher_accuracy_than_mechanical_systems.$

A. True
B. False
Answer» B. False
12.

What are the standby instruments that are combined in a Solid state integrated standby instrument?

A. Altimeter, vertical speed indicator, artificial horizon
B. Altimeter, airspeed indicator
C. Altimeter, airspeed indicator, artificial horizon
D. Altimeter, turn coordinator, artificial horizon, heading/compass indicator and Mach meter
Answer» D. Altimeter, turn coordinator, artificial horizon, heading/compass indicator and Mach meter
13.

Which one of the following is false with respect to electromechanical instruments?

A. High cost
B. Require skilled labor for repair
C. Accurate measurements
D. Inevitable wear
Answer» D. Inevitable wear
14.

How many Primary Flight Displays are present in typical civil aircraft cockpit?

A. 1
B. 2
C. 4
D. 3
Answer» C. 4
15.

Which of the following is false with respect to multi-function LCD displays in cockpits?

A. High resolution
B. More information to be displayed
C. Bigger and customizable display
D. Take more space in cockpits
Answer» E.
16.

Why are mechanical instruments retained when high tech LED displays are available?

A. LED displays are costly
B. LED Displays cannot withstand the flight environment conditions
C. Probability of failure
D. Accuracy
Answer» D. Accuracy
17.

What are the 5 primary mechanical displays, a Primary Flight Display (PFD) can replace?

A. Altimeter, turn coordinator, vertical speed indicator, artificial horizon and heading/compass indicator
B. Altimeter, vertical speed indicator, artificial horizon, heading/compass indicator and Mach meter
C. Altimeter, vertical speed indicator, artificial horizon, heading/compass indicator and landing gear position
D. Altimeter, turn coordinator, artificial horizon, heading/compass indicator and Mach meter
Answer» C. Altimeter, vertical speed indicator, artificial horizon, heading/compass indicator and landing gear position
18.

OLED display is better than LED because ________

A. They are cheaper
B. They have high brightness
C. Do not require any illuminating source
D. Easy to manufacture
Answer» D. Easy to manufacture
19.

What are the four electromechanical devices retained while making an avionics update for old aircraft?

A. Vertical speed indicator, airspeed indicator, artificial horizon and heading indicator
B. Altimeter, airspeed indicator, artificial horizon and angle of attack indicator
C. Altimeter, airspeed indicator, turns coordinator and heading indicator
D. Altimeter, airspeed indicator, artificial horizon and heading indicator
Answer» E.