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You Are On Multi Choice Question Bank SET 1351
67551. The capacitor that produces an ac ground is called a(n)
(A): coupling capacitor (B): dc open (C): bypass capacitor (D): ac open
67552. The formula used to calculate the approximate ac resistance of the base-emitter diode (re) is
(A): re 25 mV × IC
67553. What type of switch is this?
(A): push button (B): SPST (C): DPDT (D): SPDT
67554. Primary batteries, unlike secondary batteries, may be:
(A): charged once (B): used once (C): recharged over and over (D): stored indefinitely
67555. In practical applications, battery voltage:
(A): is restored as soon as disconnect occurs (B): is lowered as the load increases (C): may be stored indefinitely (D): will be reduced to zero as power is drawn
67556. The negative and positive charge symbols are assigned (in that order) to the:
(A): proton and electron (B): electron and proton (C): atom and nucleus (D): electron and element
67557. A voltmeter is used:
(A): to measure current (B): in series with the circuit (C): in parallel with the circuit (D): to measure coulombs
67558. If the current in a circuit equals 0 A, it is likely that the
(A): voltage is too high (B): resistance is too low (C): circuit has a short (D): circuit is open
67559. Current equals:
(A): coulombs × time (B): voltage × time
67560. What are the unit and symbol for current?
(A): Ampere, A (B): Coulomb, I (C): Ampere, Q (D): Ampere, I
67561. Which part of an atom has no electrical charge?
(A): Electron (B): Neutron (C): Proton (D): All of the above
67562. Which voltage source converts chemical energy to electrical energy?
(A): Electrical generator (B): Battery (C): Solar cell (D): Electronic power supply
67563. An example of potential energy is:
(A): tea-kettle steam (B): a moving vehicle (C): the sun (D): a battery
67564. If 40 C of charge flow past a point in 20 s, what is the current?
(A): 2 A (B): 0.5 A (C): 20 A (D): 40 A
67565. Batteries differ from fuel cells in that
(A): a battery is a closed system (B): a battery uses hydrogen and oxygen to create electricity (C): a battery uses a polymer electrolyte membrane (D): none of the above
67566. The removal of a non-neutral subatomic particle converts the atom into a:
(A): charged ion (B): nucleus (C): heavier element (D): compound
67567. One coulomb passing a point in one second is one:
(A): ampere (B): volt (C): ohm (D): charge
67568. In which states may matter may be found?
(A): solid, liquid, or mineral (B): solid, gas, or liquid (C): mineral, gas, or liquid (D): plastic, solid, or gas
67569. Material that consists of a mixture of elements is considered to be:
(A): an element (B): an ion (C): a compound (D): a molecule
67570. How many valence shell electrons are there in semiconductor atoms?
(A): 16 (B): 8 (C): 4 (D): 2
67571. When considering conventional current versus electron current flow:
(A): electron current flow came first (B): protons move in conventional current flow (C): conventional current flow came first (D): the direction of current is the same in both methods
67572. Which unit of charge contains 6.25 × 1018 electrons?
(A): An ampere (B): A coulomb (C): A volt (D): A joule
67573. A switch is a device that:
(A): short circuits complex circuits (B): holds a fuse (C): has double poles (D): opens or completes a current path
67574. The term used to designate electrical pressure is:
(A): voltage (B): current (C): resistance (D): conductance
67575. Which electronics material opposes the movement of free electrons?
(A): Conductor (B): Insulator (C): Semiconductor (D): Element
67576. Current is considered as the movement of:
(A): electrons (B): protons (C): charge (D): nuclei
67577. A lead-acid battery is an example of a
(A): solar cell (B): fuel cell (C): primary battery (D): secondary battery
67578. The charge of one coulomb is equal to:
(A): 6.24 x 10−18 electrons (B): one ampere (C): one second (D): 6.24 x 1018 electrons
67579. A basic electric circuit is made up of what components?
(A): A load, a resistor, and a conductive path for current (B): A voltage source, a load, and a conductive path for current (C): A voltage source, a conductive path for current, and a battery (D): A conductive path for current, a battery, and a copper wire
67580. An ammeter is used to measure
(A): voltage (B): current (C): resistance (D): All of the above
67581. What is the name of the pressure that moves electrons in a closed circuit?
(A): amperes (B): ohms (C): voltage (D): coulombs
67582. What is a characteristic of a secondary cell?
(A): rechargeability (B): not rechargeable (C): a dry cell (D): non-liquid
67583. What are the basic building blocks that all matter is composed of?
(A): electrons, neutrons, and protons (B): two protons for each neutron (C): two protons for each electron (D): electrons, neutrons, and charged ions
67584. If a fluid system is compared to an electrical system, the fluid pump will correspond to a:
(A): conductor (B): lamp (C): battery (D): insulator
67585. An element is a substance that is:
(A): varied throughout the entire piece (B): used only in electronics (C): electrically charged (D): found only in its pure form
67586. Current is:
(A): the presence of a positive charge (B): the abundance of electrons (C): the movement of electrons (D): the repulsion of electrons
67587. What do you call a diagram that shows the electrical connections of a circuit's components?
(A): A schematic diagram (B): A pictorial diagram (C): A block diagram (D): An electrical diagram
67588. A short circuit will have:
(A): a small current flow (B): a large current flow (C): no current flow (D): some current flow
67589. The basic difference between a fuse and a circuit breaker is
(A): a fuse is slower (B): a fuse is reusable (C): a circuit breaker is reusable (D): a circuit breaker is more reliable
67590. Which is the smallest?
(A): atom (B): proton (C): neutron (D): electron
67591. A secondary cell generates dc via chemical activity; a primary cell generates dc:
(A): electrically (B): thermally (C): optically (D): chemically
67592. The district in Kerala where black soil is seen most:
(A): Wayanad (B): Kannur (C): Kasaragod (D): Palakkad
67593. If an electrical system is compared to a fluid system, the electrical current corresponds to the:
(A): pressure (B): pump (C): water wheel (D): water flow
67594. The shell that is closest to the nucleus of an atom can contain a maximum of two electrons.
(A): True (B): False
67595. One coulomb of charge passing a point in one second is one ampere of current.
(A): True (B): False
67596. The unit of measurement for conductance is the coulomb.
(A): True (B): False
67597. An electron is the smallest subatomic particle of negative charge that orbits the nucleus of the atom.
(A): True (B): False
67598. A multimeter measures only voltage.
(A): True (B): False
67599. In the eighteenth and nineteenth centuries conventional current flow was routinely used.
(A): True (B): False
67600. Voltage is the driving force that establishes the flow of current.
(A): True (B): False
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