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SIES GRaduate School of Technology, Nerul
Department of Mechanical Engineering
Quiz on 'Smart Material'
BE (ME)SEM-VIII FH-2023
9/03/2023

Name:-
PRN No:-
1. Not an example for actuator
(a) Optical fiber
(b) Shape memory alloys
(c) Magneto-strictive materials
(d) Electro-/Magneto-rheological fluids
2. Presently most used metal in the world
(a) Aluminium
(b) Gold
(c) Steel
(d) Silver
3. The piezoelectric materials used for converting energy are called as ______.
(a) converters
(b) Actuators
(c) Dielectric
(d) Transducer
4. The piezoelectric effect states that when mechanical stress or forces are applied on quartz crystal,
(1) produce electrical charges on the quartz crystal surface.
(2) neutralize charges from quartz crystal.
(3) temperature of quartz crystal increases.
(4) temperature of quartz crystal decreases.
5. Which of the following is not a piezoelectric material?
(1) Lead zirconate titanate (PZT).
(2) Rochelle salt.
(3) Sodium Nitrate
(4) Barium Titanate.
6. Which of the following is not a smart material?
CFRP
SMA
Pizo Electric materials
Thermo chromic paints
7. The type of material that expands and contract in response to an applied electric field is
(A) Smart material
(B) Advanced material
(C) Biomaterial
(D) Nanomaterial
Which one of the following is a suitable for use in feeding spoons for babies?
(1) Electroluminescent wire
(2) Photochromic pigment
(3) Piezo electric material
(4) Thermochromic pigment
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