How could you check a 1/500-ampere fuse with an  ohmmeter?

1 Answer

Answer :

Use a resistor in series with the fuse when you check it with the  ohmmeter.

Related questions

Description : You have just checked a 1/500-ampere fuse with an ohmmeter and find it is open. Checking the replacement fuse shows the replacement fuse is open also. Why would the replacement fuse indicate open?

Last Answer : The ohmmeter causes more than 1/500 ampere through the fuse when you check the fuse, thus it opens the fuse.

Description : You have just checked a fuse with an ohmmeter and find that the fuse is shorted. What should you

Last Answer : Put it back in the circuit. A good fuse will have zero ohms of resistance.

Description : If an electric motor fails to start, you should FIRST check the _____________. A. phase sequence B. ampere load C. fuse or circuit breaker D. line frequency

Last Answer : Answer: C

Description : When troubleshooting motor controllers, a shorted relay or contactor coil is often indicated by _______________. A. a resistance reading of 'infinity' on an ohmmeter B. charred insulation and/or a blown ... of the coil's leads to ground D. a higher-than-normal voltage reading across the winding

Last Answer : Answer: B

Description : What two things should you check before replacing a fuse?

Last Answer : Check for the proper type of replacement fuse and proper fit.

Description : Which of the following precautions should be taken when a blown fuse, rated at 10 amperes, is replaced? A. Short out the fuse before removing it from the circuit. B. Use needle-nose pliers to ... D. Fuses of 10 ampere rating and less are virtually harmless when energized and may be handled freely.

Last Answer : Answer: C

Description : When you are using an ohmmeter to test a transistor for leakage, what is indicated by a low, but not shorted, reverse resistance reading?

Last Answer : A leaking transistor

Description : When you are testing the gain of an audio-frequency transistor with an ohmmeter, what is indicated by a 10-to-1 resistance ratio?

Last Answer : Normal gain.

Description : What are two transistor tests that can be done with an ohmmeter?

Last Answer : Gain and junction resistance.

Description : What must be done to a circuit before you can use an ohmmeter for testing?

Last Answer : It must be de-energized.

Description : When checking a diode with an ohmmeter, what is indicated by two high resistance measurements?

Last Answer : The diode is open or has a high-forward resistance.

Description : When testing an SCR with an ohmmeter, the SCR will conduct if what two elements are shorted together?

Last Answer : Gate and anode.

Description : When you are using an ohmmeter to test a transistor, what range settings should be avoided?

Last Answer : Any range setting that produces a current flow through the transistor that exceeds 1 milliamp (usually R x 1 range)

Description : Before you connect a VOM in a circuit for an ohmmeter reading, in what condition must the circuit be?

Last Answer : De-energized

Description : What area of an ohmmeter scale should be used when measuring circuits?

Last Answer : The middle of the scale.

Description : What is used to provide the ohmmeter with several ranges?

Last Answer : An ohmmeter has several internal range resistors and a switch or a series of jacks to select the proper range.

Description : How is a series-type ohmmeter connected to the circuit being measured?

Last Answer : The ohmmeter is connected in series with the resistance to be measured.

Description : What other measurement can an ohmmeter make?

Last Answer : Circuit continuity.

Description : What electrical quantity is measured by an ohmmeter?

Last Answer : Resistance.

Description : The R x 100 resistance selection on an ohmmeter has what amount of resistance compared to the R x 10 selection?

Last Answer : 1/10.

Description : . A full-scale deflection on an ohmmeter scale indicates what resistance between the leads?

Last Answer : Zero.

Description : The R x 100 resistance selection on an ohmmeter has what amount of resistance compared to the R x 10 selection?

Last Answer : 1/10.

Description : A full-scale deflection on an ohmmeter scale indicates what resistance between the leads?

Last Answer : Zero.

Description : An ohmmeter used to test for front-to-back resistance of a PN junction diode should produce roughly what ratio? A. 100:01:00 B. 500:01:00 C. 1000:01:00 D. 5000:01:00

Last Answer : Answer: A

Description : Give an example of a device you could protect with each type of time delay fuse.

Last Answer : Delay-Motors, solenoids, or transformers. Standard Automobiles, lighting or electrical power circuits. Fast-Delicate instruments or semiconductor devices.

Description : On some electrical generating equipment one outboard bearing pedestal is insulated from the bedplate. To check this insulation with the machine assembled you should use a____________. A. millivolt meter and a jumper B. ohmmeter C. megohm meter D. high potential tester

Last Answer : Answer: A

Description : On some electrical generating equipment one outboard bearing pedestal is insulated from the bedplate. To check this insulation with the machine assembled you should use a____________. A. ohmmeter with the ... C. megohm meter with the machine running D. voltmeter and ampmeter with the machine running

Last Answer : Answer: B

Description : When troubleshooting a console circuit card suspected of being faulty, first check operating voltages, clean the card and then _________________. A. make sure wired connections and push-on connectors ... circuit traces with an ohmmeter D. measure the gain of each transistor or integrated circuit

Last Answer : Answer: A

Description : In order to check the performance of a transistor removed from its circuit, the instrument to be used should be a/an ____________. A. voltmeter or transistor tester B. impedance meter C. ohmmeter or transistor tester D. sensitive potentiometer

Last Answer : Answer: C

Description : You are using a mechanical voltage tester to check the fuses in a three-phase circuit supplying an electric motor. For which of the following reasons must the motor be stopped during the test? A. ... circuit would be indicated by the voltage tester with the circuit energized. D. All of the above.

Last Answer : Answer: B

Description : If the fuse shown on the schematic (figure 3-10) opens, what lights will operate?

Last Answer : Only the brake lights.

Description : List the safety precautions to be observed when replacing a fuse.

Last Answer : Be sure the power is off in the circuit and the circuit is discharged before replacing a fuse. Use an identical replacement fuse if possible. Remove any corrosion from the fuseholders before replacing the fuses.

Description : What are three methods for determining if a fuse is open?

Last Answer : Visual inspection, indicators, and using a meter

Description : What is the new military designation for a fuse with the old military designation F05A20ROB?

Last Answer : F05B32V20A.

Description : What are the voltage and current ratings for a fuse designated

Last Answer : a. 125 volts or less, 1/16 ampere b. 250 volts or less, .15 ampere

Description : What are the voltage, current, and time delay ratings for a fuse with the designation

Last Answer : a. 125 volts or less, 1.5 amperes, delay b. 250 volts or less, 1/8 ampere standard

Description : What does the voltage rating of a fuse indicate?

Last Answer : The ability of the fuse to quickly extinguish the arc after the fuse element melts and the maximum voltage that cannot jump across the gap of the fuse after the fuse opens.

Description : What does the current rating of a fuse indicate?

Last Answer : The amount of current the fuse will allow without opening.

Description : which fuse do you check for the rear window defroster on a 2006 Sequioa

Last Answer : Need Answer

Description : Where is the Fuse for Check engine light for 1995 Mercury Sable?

Last Answer : There isn't a fuse for it. That'll be powered... for that modelyear, it'll be powered by the engine ECM (newer ones will bepowered off the dash cluster module). So you can't just pull a fuseand disable it. But if you're trying to pass emissions, it wouldn'twork anyhow.

Description : If a voltage tester is being used to check for defective fuses in the circuit, shown in the illustration, which of the readings will indicate that fuse #2 is open? EL-0062 A. C-B full voltage B. A-D full voltage C. A-D no voltage D. C-B no voltage

Last Answer : Answer: C

Description : When an AC or a DC motor fails to start, the FIRST step in troubleshooting should be to check the ____________. A. motor windings for obvious opens B. motor controller leads for continuity C. fuse or circuit breaker D. motor controller leads for grounds

Last Answer : Answer: C

Description : If the motor fails to start and a voltmeter reading between 1 and 6, as illustrated, indicates line voltage, your next step should be to ________. EL-0007 A. replace fuse '10a' B. replace or repair contact 'Ma' C. reset and determine the cause of the overload D. check line voltage between L1 and L3

Last Answer : Answer: C

Description : How could you check the phase response of a tape recorder?

Last Answer : Record and reproduce a square wave and see if the output on an oscilloscope is symmetrical.

Description : If the unity-gain point of the operational amplifier used in question 24 is 500 kilohertz, what is the bandwidth of the circuit?

Last Answer : 50 kilohertz (Gain = 10; Gain-Bandwidth Product = 500,000) 500,000(Hz)

Description : Using table 1-2, determine the resistance of 1,500 feet of AWG 20 wire at 25º C.

Last Answer : 1,000 ft = 10.4 ohms1,500 ft = 1.5 × 0.4 = 15.6 ohms

Description : What category of digital tape recorder is used to record special signals with a bandwidth of less than 500 kHz?

Last Answer : Instrumentation digital tape recorders.

Last Answer : Ampere second could be the unit of charge.