Engineering

Description

Higher School Certificate engineering Quiz on Engineering, created by Maddy Potts on 16/05/2020.
Maddy Potts
Quiz by Maddy Potts, updated more than 1 year ago
Maddy Potts
Created by Maddy Potts about 5 years ago
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Resource summary

Question 1

Question
Which Australian aeronautical innovation is commonly used to record in-flight data?
Answer
  • Altimeter
  • Pitot tube
  • Black box
  • Transponder

Question 2

Question
Which of the following identifies TWO properties of polymers that make them better suited than ceramics for the insulation of telecommunication cables?
Answer
  • Ease of formability and higher density
  • Ease of formability and higher flexibility
  • Higher resistance to abrasion and higher density
  • Higher resistance to abrasion and higher flexibility

Question 3

Question
Which AND gate shows the correct output for its given inputs?
Answer
  • A
  • B
  • C
  • D

Question 4

Question
Using computer-aided drawing (CAD) software a new outline was produced 18.32 mm away from the original outline of an item as shown. Which CAD command can produce this result most efficiently?
Answer
  • Trim
  • Offset
  • Mirror
  • Expand

Question 5

Question
The schematic diagram shows a bridge rectifier. What is the function of this bridge rectifier
Answer
  • To increase voltage
  • To decrease voltage
  • To convert DC to AC
  • To convert AC to DC

Question 6

Question
A box sits on a horizontal surface. The box begins to slip when this surface is tilted to 28 degrees. What is the coefficient of friction between the box and the surface?
Answer
  • 0.280
  • 0.469
  • 0.532
  • 0.883

Question 7

Question
The diagram shows the airflow in a venturi. What does the diagram illustrate?
Answer
  • Coriolis effect
  • Pascal’s principle
  • Dynamic pressure
  • Bernoulli’s principle

Question 8

Question
The diagram shows a seesaw being used by two children, one of mass 25 kg and the other of mass 20 kg. It has a corroded pivot mechanism that reduces its efficiency by 25%. What is the mechanical advantage of the seesaw?
Answer
  • 0.25
  • 0.75
  • 0.80
  • 1.00

Question 9

Question
Titanium is used to manufacture aircraft undercarriages that support landing wheels. Why is titanium used in preference to alloy steel for this purpose?
Answer
  • It has lower density and lower strength.
  • It has lower density and higher strength.
  • It has higher density and lower strength.
  • It has higher density and higher strength.

Question 10

Question
A scooter shock absorber is compressed from 120 mm to 90 mm when an average compressive force of 400 N is applied. What is the energy stored in this shock absorber?
Answer
  • 12 J
  • 36 J
  • 48 J
  • 120 J
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