# Pressure Transducers MCQ Questions & Answers

Pressure Transducers MCQs : This section focuses on the "Pressure Transducers". These Multiple Choice Questions (MCQs) should be practiced to improve the Pressure Transducers skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

Question 1

At which point of displacement pressure chara has maximum slope?

A. 0.14(di/dt)2
B. (di/dt)
C. 0.5(di/dt)2
D. None of the mentioned

Question 2

Compensation for temperature variation in the leads can be provided by using ________ lead method.

A. six
B. four
C. three
D. two

Question 3

Displacement to pressure systems are used for measuring ___________

A. Displacement
B. Velocity
C. Acceleration
D. Force

Question 4

Gauge factor is defined as _______________

A. (incremental change in resistance due to stress/resistance of an unstretched wire)*(unstretched length of wire/incremental change in length)
B. (incremental change in resistance due to strain/resistance of an unstretched wire)*(unstretched length of wire/incremental change in length)
C. (incremental change in resistance due to stress/resistance of an unstretched wire)*(incremental change in length/unstretched length of wire)
D. (resistance of an unstretched wire/incremental change in resistance due to stress)*(unstretched length of wire/incremental change in length)l

Question 5

On applying electricity to piezo-electric material mechanical deformation occurs in the material.

A. True
B. False

Question 6

Piezo-electricity is ______________

A. sound electricity
B. pressure electricity
C. temperature electricity
D. photo electricity

Question 7

Principle behind strain gauge is _____________

A. variable resistance
B. variable inductance
C. variable capacitance
D. variable contact area

Question 8

Range of displacement of flapper required to change output pressure over the useful range is known as ___________

A. Cut-off displacement
B. Throttling range
C. Threshold value
D. Break value

Question 9

Strain gauge is used to measure ______________

A. temperature
B. pressure
C. height
D. displacement

Question 10

The figure of merit which describes the overall behaviour of the wire under stress is determined from?

A. elastic modulus
B. gauge factor
C. elastic factor
D. gauge resistance

Question 11

Which of the condition is applicable for flapper nozzle system?

A. Measuring air should be free from dust
B. Measuring air must be of constant pressure
C. Measuring air should be of free from dust and of constant pressure
D. None of the mentioned

Question 12

Which of the following is a material employed making diaphragm to measure pressure?

A. tourmaline
B. barium titanate
C. phosphor bronze
D. zirconate titanate

Question 13

Which of the following is correct for flapper nozzle system?

A. Used in hydraulic system only
B. Used in pneumatic system only
C. Used in both hydraulic and pneumatic system
D. None of the mentioned

Question 14

Which of the following is not a piezo-electric material?

A. quartz
B. rochelle salt
C. aluminium
D. barium titanate

Question 15

Which of the following represents condition for a volume of chamber?

A. As large as possible
B. Limited to 5 cc
C. AS small as possible
D. No limit

Question 16

Which of the following represents ideal flapper nozzle system?

A. Ratio of output and input pressure 0.75 at displacement = 0
B. Ratio of output and input pressure 1 at displacement = 0
C. Ratio of output and input pressure 0.5 at displacement = 0
D. Ratio of output and input pressure 0 at displacement = 0

Question 17

Which of the following represents normal value for Pout/Pin?

A. Less than 0.2
B. Between 0.2 and 0.75
C. Between 0.75 and 1
D. Greater than 1

Question 18

Which of the following represents the correct relation between pressure and displacement in flapper nozzle system?

A. Direct proportionality
B. Inverse proportionality
C. Equal
D. None of the mentioned