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You Are On Multi Choice Question Bank SET 1608
80401. Fathom is the unit of
(A): sound (B): depth (C): frequency (D): distance
80402. Light year is a measurement of
(A): speed of aeroplanes (B): speed of light (C): Stellar distances (D): speed of rockets
80403. Very small time intervals are accurately measure by
(A): White dwarfs (B): Quartz clocks (C): Atomic clocks (D): Pulsars
80404. kilohertz is a unit which measures
(A): power used by a current of one ampere (B): electromagnetic radio wave frequencies (C): voltage (D): electric resistance
80405. One horse power is equal to
(A): 746 watts (B): 748 watts (C): 756 watts (D): 736 watts
80406. 'Bar' is the unit of
(A): temperature (B): heat (C): atmospheric pressure (D): current
80407. One Joule is equal to
(A): 105 ergs (B): 103 ergs (C): 107 ergs (D): 1011 ergs
80408. Kilowatt is a unit to measure
(A): work (B): power (C): electricity (D): current
80409. Electric current is measure by
(A): commutator (B): anemometer (C): ammeter (D): voltmeter
80410. A chronometer measures
(A): colour contrast (B): sound waves (C): time (D): water waves
80411. Nautical mile is a unit of distance used in
(A): navigation (B): road mile (C): astronomy (D): measuring the boundaries of a nation
80412. Atoms are composed of
(A): electrons and protons (B): electrons only (C): protons only (D): electrons and nuclei
80413. In an atomic explosion, enormous energy is released which is due to
(A): conversion of chemical energy into heat energy (B): conversion of mechanical energy into nuclear energy (C): conversion of mass into energy (D): conversion of neutrons into protons
80414. Isotopes are separated by
(A): crystallisation (B): sublimation (C): distillation (D): filtration
80415. The wavelength of X-rays is of the order of
(A): 10 micron (B): 1 angstrom (C): 1 cm (D): 1 m
80416. Mesons are found in
(A): Laser beam (B): X-rays (C): Gamma rays (D): Cosmic rays
80417. The isotope of uranium capable of sustaining chain reaction is
(A): U-235 (B): U-245 (C): U-239 (D): U-238
80418. The age of most ancient geological formations is estimated by
(A): Ra - Si method (B): Potassium - argon method (C): C14 method (D): Uranium - lead method
80419. The dark lines in the solar spectrum are due to
(A): absorption of corresponding wavelengths by the outer layers of the sun (B): destructive interference between waves of certain definite wavelengths (C): absorption of corresponding wavelengths by the prism used in the photograph (D): absence of corresponding wavelengths from the light emitted by the core of the sun
80420. In an atomic nucleus, neutrons and protons are held together by
(A): gravitational forces (B): exchange forces (C): coulombic forces (D): magnetic forces
80421. 'No two electrons in an atom can have the same set of four quantum numbers' is
(A): Aufbau principle
80422. Atoms of an element differ from those of all other elements in
(A): atomic number and electronic configuration (B): number of neutrons and number of valence electrons (C): atomic number and number of valence electrons (D): number of neutrons and electronic configuration
80423. Nuclear fission is caused by the impact of
(A): neutron (B): proton (C): deuteron (D): electron
80424. Which of the following rays are more penetrating?
(A): Beta rays (B): Alpha rays (C): Gamma rays (D): X-rays
80425. Epoxy resins are used as
(A): detergents (B): insecticides (C): adhesives (D): moth repellents
80426. Which of the following is used for removing air bubbles from glass during its manufacture?
(A): Arsenous oxide (B): Potassium carbonate (C): Soda ash (D): Feldspar
80427. Wood is the main raw material for the manufacture of
(A): paint (B): paper (C): ink (D): gun powder
80428. Rayon is chemically
(A): cellulose (B): pectin (C): glucose (D): amylase
80429. The major ingredient of leather is
(A): collagen (B): carbohydrate (C): polymer (D): nucleic acid
80430. In vulcanisation, natural rubber is heated with
(A): Carbon (B): Silicon (C): Sulphur (D): Phosphorous
80431. Deep blue colour is imparted to glass by the presence of
(A): cupric oxide (B): nickel oxide (C): cobalt oxide (D): iron oxide
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