
DesEng Practice 3
Authored by Stephen Brown
Design
12th Grade
Used 14+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
An example of a 'wastage' method is...
Drilling a hole in a block of wood
Bending a sheet of metal with the 3-in-1
Fused Deposition Modelling with a 3D printer
Welding two plates of steel together
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
is...
Kilo
Mega
Giga
Terra
Peta
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of these will provide the potential difference between ground and an analogue input pin on a PIC?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When a metal rod is stretched, usually one section of the sample will thin in the middle prior to the sample failing. This is referred to as...
Necking
Thinning
Smiling
Ultimate tensile strength
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of these would be an application for PWM?
Setting up a monostable circuit
Protecting a solenoid from back-EMF
Dimming an LED
Reducing the ripple effect on an AC power supply
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
An LED is connected to a PIC output pin. What would be needed to replace this with a 230V (AC) signal lamp?
Opto-Isolator
SPST relay
MOSFET
NPN Transistor
PNP Transistor
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A resistor...
Reduces the flow of current
Reduces the voltage
Reduces power
Creates back-EMF
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