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You Are On Multi Choice Question Bank SET 1278
63901. A certain transformer has 400 turns in the primary winding and 2,000 turns in the secondary winding. The turns ratio is
(A): 0.2 (B): 0.4 (C): 5 (D): 25
63902. -----------gives the specification for polyethylene in contact with food stuff
(A): IS:10146 (B): IS:10151 (C): IS:10142 (D): IS:13061
63903. The minimum diameter of the green circle in the symbol for ‘vegetarian food’is -----------when the area of principal display panel is 200 cm2
(A): 3 mm (B): 4 mm (C): 6 mm (D): 8 mm
63904. Which of the following is not an acidity regulator
(A): Calcium gluconate (B): Calcium carbonate (C): Calcium dihyrogenphosphate (D): Calcium hydroxide
63905. Incubation temperature employed in Eijkmans test
(A): 40.5+-0.2 degree C (B): 42.52+-0.2 degree C (C): 44.5+-0.2 degree C (D): 46.5 +-0.2 degree C
63906. Moseley count is related to
(A): Detection of antibiotic residue (B): Bacteriophage assay (C): Evaluation of starter culture (D): Shelf life test
63907. Which of the following is not a type of energy source?
(A): generator (B): rheostat (C): solar cell (D): battery
63908. When placed close together, two positively charged materials will
(A): attract (B): become neutral (C): become negative (D): repel
63909. The conductance of an 8 ohm resistance is
(A): 12.5 mS (B): 8 mS (C): 12 S (D): 125 mS
63910. Electrons in the outer orbit are called
(A): nuclei (B): valences (C): waves (D): shells
63911. A thermistor is a type of
(A): switch (B): resistor (C): battery (D): power supply
63912. A two-terminal variable resistor is known as a
(A): potentiometer (B): thermistor (C): rheostat (D): wiper
63913. Eight-tenths coulomb passes a point in 4 s. The current in amperes is
(A): 1.6 A (B): 16 A (C): 2 A (D): 0.2 A
63914. When the current is 2.5 A, how many coulombs pass a point in 0.2 s?
(A): 12.5 C (B): 1.25 C (C): 0.5 C (D): 5 C
63915. The colored bands for a 4,700 ohm resistor with a ten percent tolerance are
(A): yellow, violet, red, gold (B): yellow, violet, orange, gold (C): yellow, violet, red, silver (D): orange, violet, red, silver
63916. A material that does not allow current under normal conditions is a(n)
(A): insulator (B): conductor (C): semiconductor (D): valence
63917. The unit of electrical charge is the
(A): volt (B): ampere (C): joule (D): coulomb
63918. A multimeter measures
(A): current (B): voltage (C): resistance (D): current, voltage, and resistance
63919. If there is 6 A of current through the filament of a lamp, how many coulombs of charge move through the filament in 1.75 s?
(A): 10.5 C (B): 105 C (C): 3.4 C (D): 34 C
63920. A wiper is the sliding contact in a
(A): switch (B): photoconductive cell (C): thermistor (D): potentiometer
63921. A neutral atom with an atomic number of five has how many electrons?
(A): 1 (B): 5 (C): none (D): depends on the type of atom
63922. A circuit breaker is a
(A): fuse (B): switch (C): resettable protective device (D): resistor
63923. An ammeter is an electrical instrument used to measure
(A): current (B): voltage (C): resistance (D): none of the above
63924. A red, red, orange, gold resistor has a nominal value of
(A): 22,000 (B): 2,200 (C): 22 (D): 2.2
63925. An ohmmeter is an instrument for measuring
(A): current (B): voltage (C): resistance (D): wattage
63926. The current in a given circuit is not to exceed 24 A. Which value of fuse is best?
(A): a fuse is not necessary (B): 10 A (C): 24 A (D): 20 A
63927. The nominal value of a brown, black, yellow, and gold resistor is 100,000 ohms.
(A): True (B): False
63928. An ammeter is connected across the current path.
(A): True (B): False
63929. Free electrons make current possible.
(A): True (B): False
63930. A potentiometer is a two-terminal variable resistor.
(A): True (B): False
63931. The atomic number is the number of neutrons in the nucleus.
(A): True (B): False
63932. A free electron is a valence electron that has broken away from its parent atom.
(A): True (B): False
63933. Resistance limits the current.
(A): True (B): False
63934. An open circuit is one that has a complete current path.
(A): True (B): False
63935. A neutral atom is one with an equal number of protons and electrons.
(A): True (B): False
63936. A voltmeter is connected across the current path.
(A): True (B): False
63937. Materials with lots of free electrons are called
(A): conductors (B): insulators (C): semiconductors (D): filters
63938. Maximum permitted fat in low fat ice cream as per FSSA
(A): 0.018 (B): 0.02 (C): 2.5% (D): 0.03
63939. Current flows in a circuit when
(A): a switch is opened (B): a switch is closed (C): the switch is either open or closed (D): there is no voltage
63940. The minimum resistance value for a blue, gray, red, silver resistor is
(A): 612 (B): 6,120 (C): 6,800 (D): 6,460
63941. The maximum resistance value for a brown, red, yellow, gold resistor is
(A): 126,000 (B): 126,600 (C): 114,000 (D): 132,000
63942. ----------salt of methylene blue is used in MBRT
(A): Thiocynate (B): Chloride (C): Sulphate (D): Bisulphate
63943. The amount of water vaporized per unit are of surface in a 4-effect evaporator is approximately ----------of that in single effect
(A): 25% (B): 0.5 (C): 1 (D): 2
63944. In an efficient moder pasteurization plant,maximum refrigeration efficiency is ------
(A): 0.75 (B): 0.85 (C): 95% (D): 1
63945. Maxilact used for accelerated cheese ripening is a -----------enzyme
(A): Phospholipase (B): Lactase (C): Lipase (D): Protease
63946. A prion is responsible for
(A): Haverhill fever (B): Q fever (C): Creut3 feldt-Jakob disease (D): Maltas fever
63947. Refer to the given figure. This circuit is known as a ________ filter, and the fc is ________.
(A): high-pass, 1.59 kHz (B): band-pass, 15.9 kHz (C): low-pass, 15.9 kHz (D): high-pass, 15.9 kHz
63948. The bandwidth in a ________ filter equals the critical frequency.
(A): low-pass (B): high-pass (C): band-pass (D): band-stop
63949. Filters with the ________ characteristic are used for filtering pulse waveforms.
(A): Butterworth (B): Chebyshev (C): Bessel
63950. Refer to the given figure. The roll-off of this filter is about
(A): 20 dB/decade. (B): 40 dB/decade. (C): 60 dB/decade. (D): 80 dB/decade.
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