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General Knowledge

MEASUREMENTS MCQs

Total Questions : 61 | Page 2 of 7 pages
Question 11.

Very small time intervals are accurately measure by



  1.    White dwarfs
  2.    Quartz clocks
  3.    Atomic clocks
  4.    Pulsars
 Discuss Question
Answer: Option C. -> Atomic clocks


Question 12.


Fathom is the unit of



  1.    sound
  2.    depth
  3.    frequency
  4.    distance
 Discuss Question
Answer: Option B. -> depth


Question 13.


Decibel is the unit for



  1.    speed of light
  2.    radio wave frequency
  3.    intensity of sound
  4.    intensity of heat
 Discuss Question
Answer: Option C. -> intensity of sound


Question 14.


One fathom is equal to



  1.    6 feet
  2.    6 meters
  3.    60 feet
  4.    100 cm
 Discuss Question
Answer: Option A. -> 6 feet


Question 15.


Light year is a measurement of



  1.    speed of aeroplanes
  2.    speed of light
  3.    Stellar distances
  4.    speed of rockets
 Discuss Question
Answer: Option C. -> Stellar distances


Question 16.


Reading of a barometer going down is an indication of



  1.    snow
  2.    storm
  3.    intense heat
  4.    rainfall
 Discuss Question
Answer: Option D. -> rainfall


Question 17.

What is the unit for measuring the amplitude of a sound?



  1.    Decibel
  2.    Coulomb
  3.    Hum
  4.    Cycles
 Discuss Question
Answer: Option A. -> Decibel


Question 18.  What device is similar to an RTD but has a negative temperature coefficient?
  1.    Strain gauge
  2.    Thermistor
  3.    Negative-type RTD
  4.    Thermocouple
 Discuss Question
Answer: Option B. -> Thermistor
Question 19.  The silicon-controlled rectifier can be turned off
  1.    by a negative gate pulse
  2.    by forced commutation
  3.    with the off switch
  4.    when the breakover voltage is exceeded
 Discuss Question
Answer: Option B. -> by forced commutation
Question 20.  The connections to a thermocouple
  1.    can produce an unwanted thermocouple effect, which must be compensated for
  2.    produce an extra desirable thermocouple effect
  3.    must be protected, since high voltages are present
  4.    produce an extra desirable thermocouple effect and must be protected, since high voltages are present
 Discuss Question
Answer: Option A. -> can produce an unwanted thermocouple effect, which must be compensated for

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