Description : You are calibrating a multimeter using internal batteries to supply power for resistance measurements. However, you are unable to adjust the pointer to 'zero' using the adjustment knob. Therefore, you should ... change scales to the R X 100 scale and adjust using the 'zero ohms' adjusting knob
Last Answer : Answer: A
Description : On what range should you set the voltmeter prior to taking a voltage measurement?
Last Answer : Highest.
Description : What should a voltmeter read when a TX is set on coarse zero?
Last Answer : Approximately 37 volts.
Description : To test the state of charge of a nickel-cadmium battery, you should use a/an ____________. A. ammeter B. voltmeter C. hydrometer D. potentiometer
Last Answer : Answer: B
Description : What are the advantages of using a differential voltmeter?
Last Answer : Accuracy and high input impedance.
Description : What is the main advantage of using a time-domain reflectometer (tdr) to test a transmission line?
Last Answer : Tdr will indicate the nature of and the distance to or location of any faults.
Description : In the illustration, A, B, C and D are 12 volt batteries. a voltmeter across the output of the circuit will indicate _____________. EL-0039 A. 6 volts B. 12 volts C. 24 volts D. 48 volts
Last Answer : Answer: C
Description : When taking a voltage measurement, which lead of the voltmeter should you connect to the circuit first?
Last Answer : Ground.
Description : If an ac voltmeter is connected between the S2 and S3 windings on a TX, at what two rotor positions should the voltmeter read maximum voltage?
Last Answer : . 150º and 330º
Description : What is the general function of the differential voltmeter?
Last Answer : To compare an unknown voltage with a known reference voltage and indicate the difference in their values.
Description : Why would you use a hook-on voltmeter instead of a multimeter?
Last Answer : To measure current safely and easily (with no need to disconnect the wiring of the circuit).
Description : Why should you always use the highest range when connecting a voltmeter to a circuit?
Last Answer : To prevent excess current through the meter movement.
Description : What method is used to allow a voltmeter to have several ranges?
Last Answer : The use of resistors in series with the meter movement.
Description : What is voltmeter sensitivity?
Last Answer : It is an indication of the resistance of the meter expressed in ohms per volt. The total resistance of the meter is the sensitivity multiplied by the full-scale voltage.
Description : How is the loading effect of a voltmeter kept to a minimum?
Last Answer : A voltmeter must have a high resistance compared to the circuit being measured.
Description : What is the loading effect of a voltmeter?
Last Answer : The connection of a voltmeter adds a resistance in parallel with the circuit changing the total circuit resistance, and loads the circuit.
Description : How is a voltmeter connected to the circuit to be measured?
Last Answer : In parallel.
Description : What electrical quantity is measured by a voltmeter?
Last Answer : Voltage.
Description : What term is used to express the sensitivity of a voltmeter?
Last Answer : Ohms per volt
Description : When making voltage measurements in a high-resistance circuit, you should always use a voltmeter with what relative value of resistance?
Last Answer : . High.
Description : What is one advantage a film has in presenting information versus a short story?
Last Answer : Feel Free to Answer
Description : Can I recharge all types of batteries using an energizer battery charger?
Last Answer : For each Energizer battery charger, there will be a product specification sheet that will come with the item you purchased or that you can find online. This will tell you what batteries it is compatible with.
Description : The emf of a battery is 4.0 V and its internal resistance is `1.5 Omega`. Its potential difference is measured by a voltmeter of resistance `1000 Omeg
Last Answer : The emf of a battery is 4.0 V and its internal resistance is `1.5 Omega`. Its potential ... percentage error in the reading of emf shown by voltmeter.
Description : When troubleshooting an alkaline storage battery a weak or dead cell is best located by ____________. A. checking the specific gravity of each cell B. visually inspecting each cell's ... testing each cell with a voltmeter D. measuring the electrolyte temperature with an accurate mercury thermometer
Description : A useful instrument for checking A.C. motor performance by measuring possible unbalanced currents is the _____________. A. hand or battery-operated megger B. vibrating-reed frequency meter C. hook-on voltmeter-ammeter D. D'Arsonval iron-vane probe
Description : To determine the state of charge of a nickel-cadmium battery, you would use a/an _____________. A. voltmeter B. hydrometer C. ammeter D. potentiometer
Description : The basic meter movement responds to the flow of current through its coil. Therefore, this meter movement may be used as a/an _____________. A. voltmeter by placing a resistance in parallel with the ... in parallel with the coil D. ammeter by placing a low resistance in parallel with the coil
Last Answer : Answer: D
Description : The charge of a lead-acid battery is checked with a/an ____________. A. manometer B. hydrometer C. voltmeter D. ohmmeter
Description : To determine the state of charge of a nickel-cadmium battery, you should ___________. A. check the electrolyte with a hydrometer B. use the constant specific gravity method C. use a nonbreakable mercury thermometer D. connect a voltmeter to the battery terminals
Description : What are the advantages of hard wired versus battery only smoke detectors?
Last Answer : If the battery dies the smoke detector sill works, that the biggest advantage to using hard wire.
Description : What is an advantage of using a resistance soldering iron when soldering wire to a connector?
Last Answer : The soldering tips are hot only during the brief period of soldering the connection, thus minimizing the chance of burning the wire insulation or connector inserts.
Description : What is the advantage of using a closed-servo loop to control load velocity?
Last Answer : The closed-servo loop can regulate load speed under changing conditions.
Description : What is the advantage of using in-line wattmeters over output power meters?
Last Answer : Most in-line wattmeters are capable of measuring both forward and reflected power.
Description : What advantage is gained by using pole pieces with curved faces in the D’Arsonval meter movement?
Last Answer : Two-position and three-position.
Description : What is the primary advantage of using a current probe?
Last Answer : Current probes enable you to perform current measurements without disconnecting wires. Current probes are clamped around the insulated wire.
Description : What is an advantage of using horizontal polarization at high frequencies?
Last Answer : Less interference is experienced by man-made noise sources
Description : When should safety precautions pertaining to batteries be observed?
Last Answer : .At all times.
Description : What is an advantage of fuel cells over lead storage batteries?
Last Answer : Electrical energy is continuously obtained.
Description : When measuring receiver sensitivity, what quantities must you add to the dBm reading obtained on the signal generator or test set?
Last Answer : Attenuations of the directional coupler and the connecting cable.
Description : When measuring harmonic distortion, you set the signal generator to input a 15-kHz test signal. To what frequency should you set the wave analyzer?
Last Answer : 45 kHz.
Description : Before using a volt-ohmmeter to measure resistance readings, you should _____________. A. replace all batteries B. test the insulation resistance of the leads C. make sure the test leads do not touch D. hold the leads together and 'zero' the meter
Description : Prior to using an analog type ohmmeter, the leads are purposely shorted together. Which of the following actions should be taken if, when adjusting to 'zero' ohms, the indicating needle can not be ... be added to each final reading. D. The test reading should be subtracted from each final reading.
Description : To conduct an in-circuit test of a transistor, you should use a/an ____________. A. voltmeter or transistor tester B. impedance meter C. ohmmeter or transistor tester D. wattmeter
Description : To test fuses in an energized circuit, you should use a ____________. A. low voltage light bulb B. megohmmeter C. voltmeter D. resistance meter
Description : Which of the following instruments should never have their test leads connected directly to a wall outlet: w) ammeter x) voltmeter y) oscilloscope z) frequency counter
Last Answer : ANSWER: W -- AMMETER
Description : Is it dangerous to use a battery charger with batteries of a different brand?
Last Answer : There is no danger.
Description : MacBook replacement battery: What's your experience with non-Apple batteries?
Last Answer : personally I would want a legit one, but I’ve never had to replace a mac battery so I couldn’t say
Description : Can you recommend a battery pack, with female USB output, that holds two (not four) AA batteries?
Last Answer : If you get the regular male plug battery pack you can get a male to female converter. Yet cyberguys.com for the converter.
Description : Two batteries A and B each of e.m.f. 2 V are connected in series to an external resistance R = 1 ohm . If the internal resistance of battery A is 1.9
Last Answer : Two batteries A and B each of e.m.f. 2 V are connected in series to an external resistance R = 1 ohm . If the ... V B. `3.8` V C. zero D. `4.8` V
Description : If I'm looking for a computer battery with a long life that doesn't overheat too quickly, which of these computer batteries would I want?
Last Answer : Energizer ER-L800 is what you want. Computer battery's all depend on the type of laptop you have. You must buy a battery that matches your laptop. The best battery's to purchase are the ones with the most cell's they last the longest.