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WorksheetsEngineering Workshop
Total questions: 15
Worksheet time: 15mins
What a principal processes of machining do you know?
Turning
Drilling
Drilling
Milling
Coating
Turning
Drilling
Milling
Annelling
Milling
Turning
What is Intrinsic semiconductors?
Based on pentavalent elements
The trivalent impurity semiconductors
Pure form semiconductor
As semiconductor devices have no filaments, hence no power is needed to heat them to cause the emission of electrons.
True
False
In high frequency range, semiconductors have poor response
False
True
What materials useful for Solar cells
Si, Ge, SiAs
Si, CdS, GaAs
Ge, SiC, BN
What is Nanotechnology?
the control of matter on the mikro level
the control of matter on the makro level
the control of matter on the atomic level
What is a nanometer?
m = 0.000000001
m = 1.00000000
m = 0.0000001
What is Clean room?
It is well isolated room
It is a big laboratory
it is a Wight room
What types of materials commonly use for aircrafts now a days?
Composites
Steel
Wood
Al
Ca
Steel
Ti
Composites
Steel
What materials were first planes made of?
Wood and fabric
Steel and Corbon
Cast iron and Wood
Semiconductors are unsensitive for temperature.
True
False
Most commonly used semiconductor materials are (____________) inorganic (_______)
crystalline, solids
amorph, liquids
amorph, solids
What is IGBT?
Insulated-Gate Bipolar Transistor
Insulated Greate Bipolar Transistor
Insulated Gate Bionic Transistor
What is LED?
light engineered diod
light emitting diode
low emitting diode
(__________) operations are operations that rotate the worcpiece as the primary method of moving metal against the cutting tool.
Turning
Drilling
Milling
