Description : Pick out the wrong statement. (A) A ferromagnetic material becomes paramagnetic above the 'Curie temperature' (B) Permanent magnets are made of hard materials, whereas electromagnets require soft ... hysterisis loss and coercive forces (D) Tungsten steel and alnico are not hard magnetic materials
Last Answer : Option D
Description : The iron alloy, ALNICO is mainly used to make ________ A) Temporary magnets B) Permanent magnets C) Transmission lines D) None of these
Last Answer : The iron alloy, ALNICO is mainly used to make Permanent magnets
Description : The alloy of aluminium used for making magnet is-----? A. Duralumin B. Y-Alloy C. Alnico (Answer) D. Aluminium bronze
Last Answer : C. Alnico (Answer)
Description : __________ is the trade name assigned to a non-ferrous cast alloy composed of cobalt, chromium & tungsten. (A) Stellite (B) High speed steel (C) Cermet (D) Alnico
Last Answer : Option A
Description : Steel is composed of a number of elements. The two essential elements are iron and w) aluminum x) carbon y) nickel z) silicon
Last Answer : ANSWER: X -- CARBON
Description : An alloy consisting mainly of tin and lead is called: w) brass x) bronze y) pewter z) chrome
Last Answer : ANSWER: Y -- PEWTER
Description : One metal dissolved in another is called w) an alloy x) an assay y) a mineral z) a ceramic
Last Answer : ANSWER: W -- AN ALLOY
Description : In which country was a method for making rust-resistant iron discovered in the fifth century B.C.? w) Sumeria x) Egypt y) India z) Babylon
Last Answer : ANSWER: Y -- INDIA
Description : Which alloy is used for making magnets for hearing aids?
Last Answer : Alinco
Description : 1. Which alloy is used for making magnets for hearing aids? 2. Which year is celebrated as International Year of Biodiversity? 3. The United Nations declared 2011 as which International Year? ... Which is the largest island? 20. With which did the Civil Disobedience Movement in India commence?
Last Answer : Answer : 1. Alinco 2. 2010 3. Forest 4. Nickel and Iron5. Humayun 6. Nerves 7. The constitutionality of laws 8. Force and Pressure 9. Cirrus 10. Sasaram 11. Decreasing 12. North-East ... Lord Hardinge 16. National Development Council 17. Acetone 18. Suez Canal 19. Kalatdeitnunat 20. The Dandi March
Description : What are the three elements of a bipolar transistor? Are they the: w) grid, plate, cathode x) suppressor, deflector, target y) energizer, controller, terminus z) emitter, base, collector
Last Answer : ANSWER: Z -- EMITTER, BASE, COLLECTOR
Description : Which of the following elements was unknown to ancient civilizations? w) tin x) aluminum y) mercury z) sulfur
Last Answer : ANSWER: X -- ALUMINUM
Description : This woman scientist was the oldest daughter of another very well-known woman scientist. She was the second woman in history to win a Nobel Prize in science, receiving the prize in 1935 for her work in synthesizing new radioactive elements. Who is this famous woman scientist?
Last Answer : ANSWER: IRENE JOLIET-CURIE
Description : At room temperature, most elements are in which phase of matter? w) solid x) liquid y) gas z) plasma
Last Answer : ANSWER: W -- SOLID
Description : Yeast, used in making bread is a: w) plant x) fungus y) bacteria z) seed
Last Answer : ANSWER: X -- FUNGUS
Description : Permanent magnet is normally made of- (a) Aluminum (b) Wrought iron (c) Cast iron (d) Alnico alloys
Last Answer : Ans: C
Description : Which of the following materials is used along with iron ore and limestone to produce iron in a modern blast furnace? w) coke x) cementite y) coal z) bauxite
Last Answer : ANSWER: W -- COKE
Description : What radioactive element is routinely used in treating hyperthyroidism, and in reducing thyroid activity? w) Iron-59 x) Gold-198 y) Cobalt-60 z) Iodine-131
Last Answer : ANSWER: Z -- IODINE-131
Description : The common alloy, babbit metal, which is composed of tin, antimony, and copper, is best known for its use in: w) magnets x) bearings y) dental fillings z) drinking vessels
Last Answer : ANSWER: X -- BEARINGS
Description : In 1976, Congress enacted the Resource Conservation and Recovery Act designed to protect public health and the environment from improper management of hazardous waste. The Resource Conservation and Recovery Act categorizes hazardous wastes into four groups. Identify three of the four groups.
Last Answer : ANSWER: TOXIC (POISONOUS), REACTIVE, IGNITABLE, AND CORROSIVE
Description : When natural uranium is mined, it contains three isotopes. Which TWO are important in the production of nuclear power?
Last Answer : ANSWER: URANIUM-235 AND URANIUM-238
Description : Using X-ray crystallography, this woman scientist determined the structures of large biochemical molecules, including penicillin in 1949 and vitamin B12 in 1956. In 1969 she determined the three ... X-ray techniques of the structures of important biochemical substances." Name this woman scientist.
Last Answer : ANSWER: (DOROTHY) CROWFOOT HODGKIN
Description : What is the technique by which lasers are used to photograph objects and reproduce them in three dimensions?
Last Answer : ANSWER: HOLOGRAPHY
Description : To reverse the direction of rotation of a three-phase AC induction motor, do one of the following: w) reverse any two of the three-phase connections x) change the frequency of the applied AC power y) operate the motor below the stall torque at very high slip z) none of the above
Last Answer : ANSWER: W -- REVERSE ANY TWO OF THE THREE-PHASE CONNECTIONS
Description : Name THREE gaseous components produced when coal is combusted.
Last Answer : (1) CO2 (2) SO2 (3) NOX (4) H2O
Description : Name THREE TECHNIQUES for removing particulates from flue gas produced from the combustion of coal?
Last Answer : (1) ELECTROSTATIC PRECIPITATION (ESP) (2) FABRIC FILTER OR BAGHOUSE (3) WET SCRUBBERS (4) MECHANICAL COLLECTORS OR CYCLONES
Description : This large bird of prey is related to the eagle. The bird is found on all continents. Three species, the swallow-tailed, white-tailed and the Mississippi are found in North America. Name this GENR-92; Short Answer: What creatures travel in gaggles?
Last Answer : ANSWER: GEESE
Description : Bees must collect nectar from approximately how many flowers to make 1 pound of honeycomb? Is it: w) 10 thousand x) 2 million y) 20 million z) 50 million
Last Answer : ANSWER: X -- 20 MILLION
Description : The sun makes up approximately what percent of matter in our solar system? w) 17% x) 50% y) 85% z) 99%
Last Answer : ANSWER: Z -- 99%
Description : When petroleum is refined it is subject to a number of processes including cracking. During the cracking process w) lighter hydrocarbons are combined to form heavier ones x) heavy hydrocarbons ... lighter hydrocarbons are separated by distillation z) oxygen is used to burn the heavier hydrocarbons
Last Answer : ANSWER: X -- HEAVY HYDROCARBONS ARE BROKEN UP INTO LIGHTER ONES
Description : Ws of 1991, the most recent award of a Nobel Prize in medicine to a woman scientist went to this esteemed pharmacologist and biochemist. She shared her prize with George Hitchings for ... drugs that selectively block nucleic acid synthesis without damaging normal cells. Name this woman scientist.
Last Answer : ANSWER: (GERTRUDE) ELION
Description : Which alloy used in making heating elements for electric heating devices? -General Knowledge
Last Answer : The answer is 'Nichrome'
Last Answer : answer:
Description : An alloy used in making heating elements for electric heating device is - (1) Solder (2) Alloy Steel (3) Nichrome (4) German Silver
Last Answer : (3) Nichrome Explanation: Nichrome is a mixture of chromium and nickel. Nichrome wire is a great conductor of electricity. Nichrome is used to make heating coils and other types of elements in household appliances.
Description : An alloy used in making heating elements for electric heating devices is
Last Answer : Nichrome
Description : Which alloy used in making heating elements for electric heating devices?
Description : An alloy used in making heating elements for electric heating device is (1) Solder (2) Alloy Steel (3) Nichrome (4) German Silver
Description : he system of ............... generally ran one job at a time. These were called single stream batch processing. A) 40's B) 50's C) 60's D) 70's
Last Answer : B) 50's
Description : Distemper is used to coat a) External concrete services b) Internal surfaces not exposed to weather* c) Woodwork d) Compound walls
Last Answer : b) Internal surfaces not exposed to weather*
Description : 10. Catalytic converters are fitted into automobiles to reduce emission of harmful gases. Catalytic converters change un burnt hydrocarbons into (a) carbon dioxide and water (b) carbon mono oxide (c) methane (d) carbon dioxide and methane.
Last Answer : (a) carbon dioxide and water
Description : Evaporation from water surfaces exposed to air is not dependent of the: w) velocity of the wind x) humidity y) temperature z) depth of the water
Last Answer : ANSWER: Z -- DEPTH OF THE WATER
Description : For a DC motor, what major component in addition to the field winding and the armature winding is necessary? w) a commutator x) a stator y) a battery z) a rotor
Last Answer : ANSWER: W -- A COMMUTATOR
Description : Dante is the name of an eight-legged robot designed to repel into the crater of Erebus. This volcano is located in w) Italy x) the Hawaiian chain y) Antarctica z) Japan
Last Answer : ANSWER: Y -- ANTARCTICA
Description : Who is known as the Father of the Atomic Bomb? w) Albert Einstein x) J. Robert Oppenheimer y) General Leslie Groves z) Edward Teller
Last Answer : ANSWER: X -- J. ROBERT OPPENHEIMER
Description : In 1991, the frozen body of a late stone age man was found amazingly intact in the Alps near the Italian-Austrian border. Its age was determined to be about: w) 2,200 years x) 5,300 years y) 12,800 years z) 30,000 years
Last Answer : ANSWER: X -- 5,300 YEARS
Description : Movement exhibited by plants toward the "center of the Earth" is called?
Last Answer : ANSWER: GEOTROPISM
Description : What is the phase relationship between the voltage and current in a capacitor?
Last Answer : ANSWER: X -- CURRENT LEADS BY 90 DEGREES
Description : Name a component of gasoline that has been classified by the U.S. EPA as a "known human carcinogen".
Last Answer : ANSWER: XENZENE