Q1. _____________ Will be the diameter of the cylinder required to move a loadrequiring the force of 12KN under operating pressure of 1000K Pa.

A. 124mm B. 12.4mm C. 1.24mm D. 12.4cm

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Option A is correct because 124mm.

Q2. A differential amplifier having CMRR 50000 has a difference mode gain of 500. The common mode gain is_______

A. 1 B. 0.1 C. 0.01 D. 0.001

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: Option C is correct because 0.01.

Q3. A force of 400N is applied to open a Process control valve with a operating pressure of 70 Kpa. The area of the diaphragm is to be need to open the valve is _________________

A. 0.0057m^2 B. 57m^2 C. 0.057m^2 D. 5.7m^2

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Option A is correct because 0.0057m^2.

Q4. A strip chart recorder is a/an

A. analogue recorder B. magnetic tape recorder C. oscillographic recorder D. none of the above

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Option A is correct because analogue recorder.

Q5. Acuators means____________

A. Device which initiates the motion to the system. B. Device which Sense the Process parameter C. Device which gives sensing action. D. Device which act as a controller.

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Option A is correct because Device which initiates the motion to the system.

Q6. An 8 bit converter is used for a d.c range of 0-10V. find the weight of LSB.

A. 39 mV B. 78 mV C. 39.2 mV D. 78.4 mV

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Option A is correct because 39 mV.

Q7. An analogue transducer has a range 0-10V. calculate the size of a converter [No] if the resolution is 5 mA

A. 5 B. 10 C. 11 D. 12

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: Option C is correct because 11.

Q8. An operational amplifier has an open loop gain of 200000Ω.its output exhibits saturation at 10 V. the threshold differential voltage of the amplifier is:

A. 25 Micron Volts B. 50 Micron Volts C. 10 Micro Volts D. 0.5 Micron Volts

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: Option B is correct because 50 Micron Volts.

Q9. High Pass filters has pass band which allows _________

A. All frequencies from 0 to some frequency. B. All frequencies from some value to infinity. C. All frequencies from with in a specified band. D. Cannot say.

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: Option B is correct because All frequencies from some value to infinity.

Q10. If an information is required to be stored over a short interval of time

A. A single number/devices should be used B. A storage type oscilloscope should be used C. A CRO with photographic equipment should be used D. A direct writing recorder of a magnetic tape recorder should be used

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: Option B is correct because A storage type oscilloscope should be used.

Q11. If four flip flops are connected in cascade they serve as

A. 2:1 scalar B. 4:1 scalar C. 8:1 scalar D. 16:1 scalar

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: Option D is correct because 16:1 scalar.

Q12. If the armature and field coils are connected in series connection with Motor then it is called as __________

A. Series Wound Motors B. Shunt Motor C. Compound Motor. D. Servo Motor.

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Option A is correct because Series Wound Motors.

Q13. If the armature and field coils are connected parallel to the motor then it is called as ___________

A. Shunt Wound Motor B. Series Wound motor. C. Compound Motor D. Stepper Motor

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Option A is correct because Shunt Wound Motor.

Q14. If the Step angle of stepper Motor is 15 degrees, the Number of pulses produced by the motor in one complete revolution is _______________

A. 24 B. 2.4 C. 180 D. 240

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Option A is correct because 24.

Q15. In a CRT the electron beam is deflected by

A. electric field B. magnetic field C. both magnetic and electric field D. gravitational field

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Option A is correct because electric field.

Q16. In case of Band Pass filters which allows _________

A. All frequencies from 0 to some frequency. B. All frequencies from some value to infinity. C. All frequencies from with in a specified band. D. Cannot say.

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: Option C is correct because All frequencies from with in a specified band.

Q17. in case of Hydraulic actuation system accumulator will be act as ___________________

A. Storage of High Pressure fluid. B. Storage of Hydaulic fluid. C. Storage of high Pressure gas container. D. Filter.

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Option A is correct because Storage of High Pressure fluid.

Q18. In case of pneumatic system the operating Fluid is _________

A. air only B. both air or any compressred gas. C. hydraulic oil. D. High Temperature and Low Pressure gas

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: Option B is correct because both air or any compressred gas.

Q19. In case of Pneumatic systems the operating fluid will be ____________

A. High Pressurized oil. B. High Pressurized air. C. High temperature gas D. High Temperature liquid.

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: Option B is correct because High Pressurized air.

Q20. In case Stepper Motor the Number of pulses is equal to ______________

A. 360 Degrees * Step Angle B. 360 Degrees / Step Angle C. Step Angle / 360 Degrees D. Step angle + 360 degrees

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: Option B is correct because 360 Degrees / Step Angle.

Q21. In One Complete revolution the number of pulses generated by stepper Motor is 20, The step angle of Motors is _____________

A. 18 degrees B. 1.8 degrees C. 180 degrees D. 20 degrees

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Option A is correct because 18 degrees.

Q22. In order to convert signal from Analogue to Digital or vice versa the frequency of the sample must be _____________

A. Less than the twice of Maximum Frequency of the sample. B. Equal to twice of Maximum Frequency of the sample. C. Greter Than the twice of Maximum Frequency of the sample. D. Greter than the Mximum frequency of the Sample.

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: Option C is correct because Greter Than the twice of Maximum Frequency of the sample.

Q23. In which environment would an electric actuator be least suitable?

A. Clean room B. Underwater C. High vacuum D. High-temperature furnace

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: Option D is correct because High-temperature furnace.

Q24. LED light emits______

A. Only in red color B. Only in yellow color C. Only in green color D. In red green yellow and amber color.

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: Option D is correct because In red green yellow and amber color.

Q25. Low Pass filters has a pass band which allows _________

A. All frequencies from 0 to some frequency. B. All frequencies from some value to infinity. C. All frequencies from with in a specified band. D. Cannot say.

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Option A is correct because All frequencies from 0 to some frequency.

Q26. Modem is an acronym of

A. Modulation B. Demodulation C. Modulation and demodulation D. Local Area Network

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: Option C is correct because Modulation and demodulation.

Q27. Power consumption of an LED display is

A. higher than LCD display B. lower than LCD display C. almost equal to LCD display D. Approximately two lines higher than same size LCD

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: Option B is correct because lower than LCD display.

Q28. Printing mechanism of a FAX machine is of__________

A. thermal type B. impact type C. electrostatic type D. optical type

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Option A is correct because thermal type.

Q29. Switching time of LEDs is of the order of__________.

A. 1 s B. 1 ms C. 1 µs D. 1 ns

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: Option D is correct because 1 ns.

Q30. The angle through which the rotor rotates one switching change for the stator coils is called

A. Pull out rate B. Phase C. Step angle D. Pull in rate

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: Option C is correct because Step angle.

Q31. The closed loop gain of an OPAMP is dependent upon whether the OPAMP is used,

A. In inverting mode B. In non-inverting mode C. Is independent of the fact whether the input is connected to inverting or the non-inverting terminal D. Is dependent upon the fact that whether the input is connected to inverting or the non-inverting terminal.

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: Option D is correct because Is dependent upon the fact that whether the input is connected to inverting or the non-inverting terminal.

Q32. The conversion time for a 12 bit ADC with a Clock frequency of 1MHz is _____________

A. 0.000012 sec B. 83333.33 sec C. 1200000 Sec D. cannot be Find out

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Option A is correct because 0.000012 sec.

Q33. The power requirement of LED is

A. 40 mW per numeral B. 40 µW per numeral C. 10 W per numeral D. 10 µW per numeral

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Option A is correct because 40 mW per numeral.

Q34. The Purpose of A/D Converter is ___________

A. To convert the analogue signal into Digital Form. B. To convert the Digital Signal into analogue form. C. To convert the Resistance signal into Current Signal. D. To Conver the Voltage signal into Resistance Signal.

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Option A is correct because To convert the analogue signal into Digital Form.

Q35. The Purpose of D/A Converter is ___________

A. To convert the analogue signal into Digital Form. B. To convert the Digital Signal into analogue form. C. To convert the Resistance signal into Current Signal. D. To Conver the Voltage signal into Resistance Signal.

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: Option B is correct because To convert the Digital Signal into analogue form.

Q36. The Purpose of the Amplifier is ________________

A. To strengthen the Low level signals. B. To eleminate the Noise present in the signal C. To convert the resistance signal into Voltage Signal. D. To Convert the Voltage signal into Current Signals.

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Option A is correct because To strengthen the Low level signals.

Q37. The response time of CRT display is__________

A. higher that LCD display B. lower than LCD display C. higher than plasma display D. lower than plasma display

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Option A is correct because higher that LCD display.

Q38. The turn on and turn off times of a LCD are of the order of

A. 1 s B. 1 ms C. 10 ms D. 10 ns

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: Option C is correct because 10 ms.

Q39. The use of Pressure Relief valve is _____________

A. To send the Excess fluid to sump. B. To Send the Excess air into atmosphere. C. Both a and b D. to regulate the fluid in one direction

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: Option C is correct because Both a and b.

Q40. Time division multiplexing requires______________

A. Constant data transmission B. Transmission of data transmission C. Transmission of data at random D. Transmission of data of only one measurand.

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: Option B is correct because Transmission of data transmission.

Q41. What is the primary function of an actuator in a mechanical system?

A. To generate heat B. To produce sound C. To convert energy into motion D. To store electrical energy

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: Option C is correct because To convert energy into motion.

Q42. What type of actuator is often used in automated control systems for its quick response and accuracy?

A. DC motor B. Pneumatic actuator C. Solenoid D. Servo motor

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: Option D is correct because Servo motor.

Q43. What type of actuator uses hydraulic fluid to create motion?

A. Pneumatic actuator B. Electric actuator C. Hydraulic actuator D. Thermal actuator

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: Option C is correct because Hydraulic actuator.

Q44. Which actuator is best suited for high-speed and high-force applications?

A. Stepper motor B. Pneumatic actuator C. Hydraulic actuator D. Thermal actuator

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: Option C is correct because Hydraulic actuator.

Q45. Which is not the function of data loggers?

A. Display B. Online analysis C. Reporting D. Control

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: Option D is correct because Control.

Q46. Which of the following actuators operates by converting electrical energy into linear motion directly?

A. Hydraulic actuator B. Pneumatic actuator C. Solenoid D. DC motor

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: Option C is correct because Solenoid.

Q47. Which of the following device used by servo mechanism?

A. potentiometric type recorder B. galvanometric type recorder C. magnetic tape type recorder D. ultraviolet recorder

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Option A is correct because potentiometric type recorder.

Q48. Which of the Following devices are widely used for amplification?

A. Operationla Amplifiers B. Comparators C. Diodes D. Filters

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Option A is correct because Operationla Amplifiers.

Q49. Which of the following is a type of linear actuator?

A. Stepper motor B. Solenoid C. DC motor D. Servo motor

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: Option B is correct because Solenoid.

Q50. Which of the following is an advantage of pneumatic actuators?

A. High precision B. High speed C. High force output D. Low energy consumption

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: Option B is correct because High speed.

Q51. Which of the following is not a basic part of Hydraulic actuation system

A. Motor B. Compressor C. Hydraulic Sump D. Non Return Valve

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: Option B is correct because Compressor.

Q52. Which of the Following is not a specification of ADCs

A. Converion time B. Resolution C. Linearity Error D. Noise Elemination

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: Option D is correct because Noise Elemination.

Q53. Which of the following is the Linear actuator

A. Gear drives B. Cylinder and Piston arrangement C. Solenoids D. Both Cylinder piston and Solenoids

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: Option D is correct because Both Cylinder piston and Solenoids.

Q54. Which of the following motor having High Starting torque and high speed at no load condition

A. Series wound Motors B. Shunt Motors C. Compound Motors D. Stepper Motors

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Option A is correct because Series wound Motors.

Q55. Which of the following motor having Low starting Torque and Good speed regulations?

A. Series Motors B. DC Shunt Motors C. Compound motors D. Stepper Motors

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: Option B is correct because DC Shunt Motors.

Q56. Which of the following motors having High starting torque and good speed regulations

A. Series wound Motors B. Shunt Motors C. Compound Motors D. Stepper Motors

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: Option C is correct because Compound Motors.

Q57. Which of the following will be act as a D/A Converte?

A. Sucessitype ADC B. Flash Type ADC C. Ramp Type ADC D. R-2R Ladder Network

Check Answer

Correct Answer: D   |   Marks: 1

Explanation: Option D is correct because R-2R Ladder Network.

Q58. Which of the follwing device is not a basic part in the Pneumatic system

A. Compressure B. Motor C. Accumulator D. Air Receiver Tank

Check Answer

Correct Answer: C   |   Marks: 1

Explanation: Option C is correct because Accumulator.

Q59. Which type of actuator is typically used for precise positioning applications?

A. Pneumatic actuator B. Electric actuator C. Hydraulic actuator D. Thermal actuator

Check Answer

Correct Answer: B   |   Marks: 1

Explanation: Option B is correct because Electric actuator.

Q60. X-Y recorders used to __________

A. Record one quantity with respect to another quantity B. Record one quantity on x- axis with respect to time on Y-axis C. Record one quantity on Y-axis with respect to time on X-axis D. None of the above.

Check Answer

Correct Answer: A   |   Marks: 1

Explanation: Option A is correct because Record one quantity with respect to another quantity.