Sensors and Actuators Week 1 Nptel Assignment Answers
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Sensors and Actuators Week 1 Nptel Assignment Answers (Jan-Apr 2025)
Which of the following stimulus is best suitable for the quantities such as “refractive index, reflectivity, absorption” with regards to sensors?
a. Acoustic
b. Magnetic
c. Optical
- Evaluate whether the below statement is true or false:
“A sensor acquires a physical parameter and converts it into a signal suitable for processing (e.g. optical, mechanical, electrical etc.)”
a. True
b. False
- MEMS is the acronym for _________
a. Micro Electro Material Systems
b. Micro Electro Mechanical Systems
c. Micro Electric Machining Systems
d. Micro Electric Monitoring Systems
- Choose the best option for the process steps in Silicon boule growth technique.
I. Crystal pulling
II. Beginning of crystal growth
III. Introduction of seed crystal
IV. Formation of crystal
V. Melting of polysilicon
a. II-V-III-V-IV
b. III-V-II-I-IV
c. V-III-II-I-IV
- Which of the following is not a physical vapor deposition technique?
a. Thermal Evaporation
b. Sputtering
c. Thermal Oxidation
d. E-beam Evaporation
- Evaluate whether the below statement is true or false:
“Extracellular and Intracellular matrices are responsible for giving nutrition to the cells.”
a. True
b. False
- Choose the best option for the following statement:
“………… means study outside the living body and ……….. means study inside the living body.”
a. In vivo, ex vivo
b. Ex vivo, in vivo
- Complete the following with respect to T-cells as discussed in the microfluidic chip for understanding the efficacy of immunotherapy drugs:
“CD4 cells are called ……..cells and CD8 cells are……… cells, respectively.”
a. killer, helper
b. killer, T-regulatory
c. helper, killer
d. T-regulatory, helper
- Which of the following is the desired characteristic of a sensor?
a. Specificity should be low
b. Power consumption is low
c. Signal to noise ratio should be low
- Which among the following sensors are used to detect VOCs exhaled from breath?
a. Ultrasonic sensors
b. Gas sensors
c. Infrared sensors
Sensors and Actuators Week 1 Nptel Assignment Answers
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