Miscellaneous MCQ 249+

Test your knowledge with important Miscellaneous MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 279 + more Miscellaneous MCQs at Bissoy

• What is the maximum baffle spacing for a Shell and Tube Heat Exchanger?
  ক

  ID of Shell

  খ

  ID of Tube

  গ

  ID of Shell/5

  ঘ

  ID of Shell/4
• What is the minimum baffle spacing for a Shell and Tube Heat Exchanger?
  ক

  ID of Shell

  খ

  ID of Tube

  গ

  ID of Shell/5

  ঘ

  ID of Shell/4
• The more the number of shell and tube passes, less is the value of Correction Factor.
  ক

  True

  খ

  False
• When we want to have extremely small pressure drop for the shell side and also desire to provide support to the tubes, which one the following setup should we use?
  ক

  Segmental Baffles

  খ

  Doughnut Baffles

  গ

  Orifice Baffles

  ঘ

  Support Plates
• When steam is used on the tube side of the Heat Exchanger, then the allowable pressure drop should be less than _____ P.S.I.
  ক

  1

  খ

  2

  গ

  3

  ঘ

  4
• A heat exchanger was required to cool a liquid from 150℃ to 110℃, but the outlet temperature was increased by 3℃ every month for same heat transfer. What should have been the fouling factor if UD = 80?
  ক

  94

  খ

  49

  গ

  85

  ঘ

  90
• Which one of the following dirt factor should we assign to the HE for two moderately clean streams?
  ক

  UD = 20, UC = 30

  খ

  UD = 40, UC = 50

  গ

  UD = 50, UC = 60

  ঘ

  UD = 100, UC = 110
• A Gas Turbine is also known as?
  ক

  Compression Turbine

  খ

  Compensation Turbine

  গ

  Combustion Turbine

  ঘ

  None of the mentioned
• Intercooling is done in ___________
  ক

  CI Engines

  খ

  SI Engines

  গ

  Gas Turbines

  ঘ

  None of the mentioned
• Brayton cycle corresponds to ___________
  ক

  IC Engines

  খ

  Gas Turbines

  গ

  IC Engines & Gas Turbines

  ঘ

  None of the above mentioned
• The function of a distributor in a coil ignition system of I.C. engines is ___________
  ক

  to distribute spark

  খ

  to distribute power

  গ

  to time the spark

  ঘ

  to distribute current
• The pressure at the end of compression, in diesel engines, is approximately ___________
  ক

  10 bar

  খ

  15 bar

  গ

  20 bar

  ঘ

  35 bar
• The injection pressure in a diesel engine is about ___________
  ক

  10 bar

  খ

  100 bar

  গ

  150 bar

  ঘ

  300 bar
• The theoretically correct mixture of air and petrol is?
  ক

  20:1

  খ

  15:1

  গ

  40:1

  ঘ

  50:1
• In a four stroke cycle petrol engine, the inlet valve ___________
  ক

  opens at top dead centre and closes at bottom dead centre

  খ

  opens at 20° before top dead centre and closes at 40° after bottom dead centre

  গ

  opens at 20° after top dead centre and closes at 20° before bottom dead centre id may open or close anywhere

  ঘ

  none of the mentioned
• Greenhouse effect is not caused by?
  ক

  CFC’s

  খ

  Sulphur dioxide

  গ

  Carbon dioxide

  ঘ

  None of the mentioned
• Determine the loss in the snubber circuit, if C = 0.545 μF and supply is 200 V, 10 kHz.
  ক

  233 W

  খ

  133 W

  গ

  333 W

  ঘ

  233 W
• The ratio Vrms/ Vdc is known as
  ক

  Form factor

  খ

  Ripple factor

  গ

  Utilization factor

  ঘ

  None of the mentioned
• TRIAC is used in
  ক

  chopper

  খ

  speed control of induction machine

  গ

  speed control of universal motor

  ঘ

  none of the mentioned
• A single-phase full bridge diode rectifier delivers power to a constant load current of 10 A. The average and rms values of the source currents will be respectively.
  ক

  5 A, 10 A

  খ

  10 A, 10 A

  গ

  5 A, 5 A

  ঘ

  10 A, 5A
• For a SCR, conduction angle is 120° when average on-state current is 20 A. When the conduction angle is halved the earlier value, the on-state average current will be?
  ক

  5 A

  খ

  40 A

  গ

  10 A

  ঘ

  20 A
• The reverse recovery time of a diode is trr = 3 μs and the rate of fall of the diode current (di/dt) = 30 A/μs. Determine the storage charge.
  ক

  145 μs

  খ

  135 μs

  গ

  0

  ঘ

  none of the mentioned
• The factors governing the induction heating are
  ক

  resistivity

  খ

  relative permeability

  গ

  magnetic field intensity

  ঘ

  all of the mentioned
• Induction heating is a ___________ type of heating
  ক

  zero frequency

  খ

  high frequency

  গ

  power frequency

  ঘ

  none of the mentioned
• The converter circuit which employs turn on and turn off when the voltage and/or current through the device is zero at the instant of switching is ____________
  ক

  a conventional converter

  খ

  a resonant converter

  গ

  a zero switching circuit

  ঘ

  none of the mentioned
• Solid State Relays (SSRs) have a
  ক

  coil and contact arrangement

  খ

  optocoupler

  গ

  scr

  ঘ

  none of the mentioned
• The hardware feature of LISP machines generally includes _____________
  ক

  Large memory and high-speed processor

  খ

  Letter quality printers and eight-inch disk drives

  গ

  A mouse and specialized keyboard

  ঘ

  A mouse and specialized keyboard, Letter quality printers and eight-inch disk drives
• The component of an ICAI (Intelligent Computer Assisted Instruction) presenting information to the student is the?
  ক

  Student model

  খ

  Problem solving expertise

  গ

  Tutoring module

  ঘ

  All of the mentioned
• When a top-level function is entered, the LISP processor does?
  ক

  It reads the function entered

  খ

  It prints the result returned by the function

  গ

  Large memory and high-speed processor

  ঘ

  All of the mentioned
• How can you evaluate 1.25 + sqrt (144) in LISP?
  ক

  1.25+sqrt (1.44)

  খ

  (1.25+sqrt (1.44))

  গ

  (+1.25 sqrt (1.44)

  ঘ

  All of the mentioned