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Basic ElectronicsObjective Questions from Measurements Instrumentation A CRO can display(a) AC signals(b) DC signals(c) Both AC and DC signals(d) Time invariant signalsAns: CAnswer The internal resistance of an ammeter should beAnswer A galvanometer has(a) air friction damping(b) fluid friction damping(c) Spring coil damping(d) Eddy current dampingAns:DAnswer Electrostatic instruments are normally used for(a) Low current measurements(b) High current measurements(c) Low voltage measurements(d) High voltage measurementsAns:DAnswer In a moving coil instrument, the deflecting torque is proportional toAnswer
 The absolute measurement of resistance is done byAnswer To measure the flux, devices used are based on(a) Voltaic effect(b) Piezo-electric effect(c) Hall effect(d) Photo-voltaic effectAns:CAnswer The form factor in AC is the ratio of(a) peak value to average value(b) peak value to rms value(c) rms value to average value(d) rms value to peak valueAns:CAnswer PMMC type instruments normally use(a) Air friction damping(b) Fluid friction damping(c) Eddy current damping(d) None of the aboveAns: CAnswer In a moving iron meter, the deflecting torque is proportional to(a) Current through the coil(b) Square of the current through the coil(c) Sine of the measurand(d) Squareroot of the measurandAns: BAnswer In a gravity controlled instrument, the deflection angle is proportional(a) Measurand
(b) Square of the measurand(c) sine inverse of measurand(d) sine of the measurandAns: CAnswer Ampere is one of the Direct method is used to measureAnswerPlease leave your comments and questions below...Basic Electrical objective type questions: Part-13Posted: 23 Jul 2014 10:19 AM PDTElectrical Objective Questions with Answers: In a uniform electric field, field lines and equipotentials [Gate 1997 ]a) Are parallel to one anotherb) Intersect at 45 degc) Intersect at 30 degd) Are orthogonalAns:DAnswer For a pulse transformer, the material used for its core and the possible turn ratio from primay tosecondary are respectively