Pulp & Paper MCQ

Test your knowledge with important Pulp & Paper MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Pulp & Paper MCQs at Bissoy

• The temperature of a heated metal filament depends on the gas pressure since the gas molecules could conduct heat from the filament.
  ক

  True

  খ

  False
• Strain ___________ could be mounted on diaphragms to measure pressure; this method has been miniaturized onto integrated circuits.
  ক

  Sensors

  খ

  Lobes

  গ

  Gauges

  ঘ

  Gears
• If a fluid is at rest, one refers to static _________ If a fluid is in motion, one refers to dynamic _________ which is a function of the motion of the fluid.
  ক

  Pressure

  খ

  Gravitational force

  গ

  Viscosity

  ঘ

  Density
• The __________ factor is the relative change in resistance divided by relative change in length i.e., the definition of strain.
  ক

  Screw

  খ

  Gauge

  গ

  Pit

  ঘ

  Kraft
• __________ could be utilized as a point sensor by measuring a time pulse of __________ takes to echo back to the transmitter. It is similar in principle to a radar.
  ক

  Radiation

  খ

  Reflection

  গ

  X- ray

  ঘ

  Ultrasound
• __________ sensors is a type of transformer and are the basis of the prevalent L.V.D.T . The signal is easily conditioned to give out a D.C. voltage that in linearly proportional to point over part of the range of motion of the core.
  ক

  Speed

  খ

  Temperature

  গ

  TIR

  ঘ

  Reluctance
• Variable inductance is achieved by the utilization of __________ core in the shape of a rod which is wraped by a hollow coil of wire.
  ক

  Ferrimagnetic

  খ

  Ferromagnetic

  গ

  Paramagnetic

  ঘ

  Diamagnetic
• A potentiometric displacement sensor utilizes a wire of high resistance with a wiper in electrical contact with the wire.
  ক

  True

  খ

  False
• __________ sensors rely on a change of capacitance, resistance, inductance, or reluctance.
  ক

  Point

  খ

  Humidity

  গ

  Proximity

  ঘ

  Thermal
• __________ sensors are utilised to measure variables such as point, velocity, acceleration, force, press, levels and flow.
  ক

  Humidity

  খ

  Optical

  গ

  Thermal

  ঘ

  Mechanical
• The objective of process control is to keep key process operating parameters within narrow bounds of the ____________
  ক

  Reference value

  খ

  Spot

  গ

  Pith

  ঘ

  Inception point
• In pneumatic systems, one common standard calls for a signal output of _________
  ক

  10-20 kPa

  খ

  20-50 kPa

  গ

  50-100 kPa

  ঘ

  20-100 kPa
• Optical _________ is utilized to measure the temperature of objects. This relies on blackbody radiation.
  ক

  Spectroscopy

  খ

  Pyrometry

  গ

  Geometry

  ঘ

  Reflection
• _________ have been utilized in thermostats for years. They are mechanically connected to a switch, such as a mercury switch, to control heaters.
  ক

  Unimetal

  খ

  Bimetallic

  গ

  Trimetallic

  ঘ

  Quadrametallic
• Noise reduction techniques should be utilized to avoid interfering voltages that might be otherwise generated in the system.
  ক

  True

  খ

  False
• Thermocouples consist of a pair of wires made of dissimilar metals joined together at one or more junctions that generate a voltage when subjected to a temperature gradient . This phenomenon is known as the _________
  ক

  Seebeck effect

  খ

  Piezolelectric effect

  গ

  Photovoltaic

  ঘ

  Photoconductor
• The _________ of semiconductors is also a function of temperature, but semiconductor materials could be made whose _________ increment drastically with increment temperature
  ক

  Coefficient of material

  খ

  Resistance

  গ

  Conductivity

  ঘ

  Kappa
• While using a meter bridge circuit a long signal difference is conditioned which might contain a compensating line to nullify the effect of long leads to the R.T.D.
  ক

  True

  খ

  False
• The _________ of metals is a function of temperature and increases with increasing temperature.
  ক

  Coefficient of material

  খ

  Resistance

  গ

  Conductivity

  ঘ

  Kappa
• ____________ cells produce a voltage and current that are a function of the light level incident to them. These have time constants on the order of 1 to 100 µs.
  ক

  Thermocouple

  খ

  Photoconductors

  গ

  Photovoltaic

  ঘ

  Piezoelectric
• __________ utilise a thin band of a material that becomes conductive when exposed to light of a minimum frequency.
  ক

  Thermocouple

  খ

  Photoconductors

  গ

  Photovoltaic

  ঘ

  Piezoelectric
• The __________ at one temperature is immersed in a liq. of a different temperature, the output of the __ would change with time until it finally gives a reading that is around its normal error.
  ক

  Thermocouple

  খ

  Photoconductors

  গ

  Photovoltaic

  ঘ

  Piezoelectric
• The __________ of a sensor is a measure of how the sensor responds to an actual change as a function of time. For example, all thermocouples have mass.
  ক

  Size

  খ

  Material

  গ

  Time response

  ঘ

  Durability
• A transfer function relates the value of the parameter to be measured with the output of the __________
  ক

  Sensor

  খ

  Top

  গ

  Point

  ঘ

  Error
• The __________ is a device which converts a change in a parameter to a change in a electric or pneumatic signal.
  ক

  Sensor

  খ

  Top

  গ

  Point

  ঘ

  Error
• The difference between the actual value and the set point is known as the __________ The controller reads the __________ and makes a decision.
  ক

  Sensor

  খ

  Top

  গ

  Point

  ঘ

  Error
• This is __________ feedback loop because the desired result is determined and the information fed back to the controller for appropriate action. This system is also known as __________ control loop.
  ক

  1i process

  খ

  2i process

  গ

  3i process

  ঘ

  4i process
• A good example of automatic control is electric heating of a house in a cold environment, a process where a single variable is controlled.
  ক

  True

  খ

  False
• A __________ for a given process must have at least one sensor, the controller, and a control element to which the results are applied.
  ক

  Control loop

  খ

  Kraft loop

  গ

  Automatic loop

  ঘ

  Pausing loop
• Hydraulic fluid might be transferred with pipes, tubing, or hose. Pipes are often of (non-stainless) ___________ material.
  ক

  Copper

  খ

  Zing

  গ

  Aluminium

  ঘ

  Steel