Users Also Read
Read MCQ's/Objective questions
MCQ's Search Engine
D.C.Basic
A.C.Basic
D.C.Machine
A.C.Machine
A.C. Fundamentals
Alternators
Basic Electricity
Control Systems
D.C. Generators
D.C. Motors
Economics of Power Generation
Electric Heating
Electric Traction
Electric Welding
Electrical Engineering Materials
Electrical Installation and Wiring
Electrical Machine Design
Electrostatics
Electrolysis and Storage of Batteries
Electromagnetic Induction
Illumination
Industrial Drives
Magnetic Circuit & Electromagnetism
Network Theorems And Circuit Theory
Polyphase Induction Motors
Resistance and Ohm's law
Rectifiers and Converters
Refrigeration and Air conditioning
Single Phase Induction Motors
Switchgear and Protection
Synchronous Motors
Transformers
Transmission & Dist. of Elect. Power
Home⇒ Engineering⇒
Measurement and instrumentation
1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
Q21 ⇒ To measure radio frequency, the suitable
frequency meter is hetrodyne frequency meter [other wrong options] [Discuss in forum] Weston frequency meter reed vibrator frequency meter electrical resonance frequency meter |
Q22 ⇒ A multimeter can be used for measuring D.C. as well as A.C. quantities [other wrong options] [Discuss in forum] D.C. quantities only A.C. quantities only |
Q23 ⇒ Which of the following can be measured
by the use of a Schering bridge ? Dielectric loss and power factor [other wrong options] [Discuss in forum] Frequency and capacitance Variable resistances All of the above |
Q24 ⇒ In order to get best results, indicating
instruments are damped slightly less than the critical value [other wrong options] [Discuss in forum] overdamped underdamped critically damped |
Q25 ⇒ Hot wire instruments read r.m.s. value [other wrong options] [Discuss in forum] average value peak value none of the above |
Q26 ⇒ For protecting a galvanometer during
transport critical damping resistance is connected across the terminals [other wrong options] [Discuss in forum] a capacitar is connected across the
terminals the terminals are kept shorted the terminals are kept open circuited |
Q27 ⇒ Changes in atmospheric temperature,
humidity etc. cause ____ errors. environmental [other wrong options] [Discuss in forum] cumulative systematic instrumental |
Q28 ⇒ Meggar will give resistance values
which remain constant irrespective of the speed [other wrong options] [Discuss in forum] increase with the speed of the hand
driven dynamo decrease with the speed of the hand driven dynamo any of the above |
Q29 ⇒ Moving iron instruments are rarely
used in low power high resistance circuits
because of high reluctance of magnetic path [other wrong options] [Discuss in forum] high resistance of the coil low reluctance of magnetic path none of the above |
Q30 ⇒ In which part of the scale does the
pointer indicate most accurately ? In the last third of the scale [other wrong options] [Discuss in forum] In the first third of the scale In the first half of the scale In about the middle of the scale |
Q31 ⇒ Which of the following is the merit of a
moving iron instrument ? It can be used under severe overload conditions [other wrong options] [Discuss in forum] It has linear scale It can be used at high frequencies Its current sensitivity is high |
Q32 ⇒ The Q-meter Works on the principle of series resonant circuit [other wrong options] [Discuss in forum] self-inductance mutual inductance parallel resonant circuit |
Q33 ⇒ In brewing process the degree of fermentation
is measured by pH meter [other wrong options] [Discuss in forum] combustibility meter conductivity meter bolometer any of the above |
Q34 ⇒ Load cell is essentially a ____ strain gauge [other wrong options] [Discuss in forum] photovoltaic cell thermistor none of the above |
Q35 ⇒ A wave guide acts as ____ a pass filter high [other wrong options] [Discuss in forum] low band none of the these |
Q36 ⇒ The input impedance of a C.R.O. is around one mega-ohm [other wrong options] [Discuss in forum] zero around 100 ohms around 1000 ohms |
Q37 ⇒ The output of LVDT is in the form of linear displacement of core [other wrong options] [Discuss in forum] pulses high frequency signals rotary movement of core |
Q38 ⇒ Resistances can be measured with the
help of ohmmeters and resistance bridges [other wrong options] [Discuss in forum] wattmeters voltmeters ammeters all of the above |
Q39 ⇒ An induction meter can handle current
upto 100 A [other wrong options] [Discuss in forum] 10 A 30 A 60 A |
Q40 ⇒ The pointer of an indicating instrument
should be very light [other wrong options] [Discuss in forum] very heavy either (a) or (b) neither (a) nor (b) |
Or |