G.K History (109) for UPSC-TRB-TNPSC-CTET-TNTET-SSC-RAILWAY

SL NO	QUESTION	ANSWER
1	Shock absorbers are usually mode of steel as it?	Has Higher elasticity
2	Identify the metal which is non-toxic in nature-	Gold
3	Which of the following metal is found in Free State in nature	Gold
4	Most important ore of Lead is-	Galena
5	Which of the purest commercial form of Iron?	Wrought Iron
6	Which of the following is purest form of Iron?	Wrought Iron
7	Which one of the following is known as the brown coal?	Lignite
8	Which one of the following is not a coal variety?	Dolomite
9	The Iron ORE which contains 72% of Iron is -	Magnetite
10	Which one of the following is an iron ore?	Magnetite
11	Which one of the following Mineral does not contains oxygen?	Cryolite
12	Which metal is protected by the layer of its own oxide?	Aluminum
13	The ore only two metals that are Non-Silver in colour, they are-	Copper and gold
14	Siderite is an ore of-	Iron
15	Which of the following process is used in the extraction of iron from the Iron ore? 72 0	Reduction
16	Which one of the following metals cannot be used as an electromagnet?	Copper
17	Quartz is a type of	Silicon dioxide
18	Raw materials used in the manufacturing of glass are-	Soda, Lime Stone Silica Sand ash
19	Ruby and sapphire are the oxides of - Aluminum
20	Which of the following is used in welding broken pieces of iron rails and parts of machine -	Aluminum Powder
21	Which one of the following does not present in the Stainless Steel?	Tungsten
22	The addition of Gypsum to Portland cement helps in-	Preventing rapid settling of cement
23	Who discovered cement?	Joseph Aspdin
24	Air pollution by "Fly Ash" is caused by-	Cement industry
25	Cement is formed by strongly heating a Mixture of -	Lime Stone and clay
26	Cement is a mixture of -	Calcium Silicate and calcium aluminates
27	Which one of the following Metals is used to Heat up the electric iron?	Nichrome
28	Which of the following is strongest coagulant?	Aluminum Chloride (Alcl3)
29	The Base used as an antacid is -	Magnesium Hydroxide Mg(OH)2
30	Which of the following metal is found in Free State?	Copper
31	Which one of the following is used in Pencils?	Graphite
32	In Graphite layers are held together by-	Vander wall forces
33	Which one among the following is Lubricant?	Graphite
34	One carat of Diamond is equal to-	200 mg
35	Which of the following are properties is generally found in non-metals?	Brittleness
36	What is wood spirit?	Methyl Alcohol
37	Fire-Fighting cloths are made from-	Asbestos
38	The Gas Causes acid rain in an industrial area is-	Sulphur dioxide
39	Acid rain in the environment is caused by the Higher concentration of -	SO2 and NO2
40	Which one of the following is used to dissolve noble metals?	Aqua regia
41	Aqua regia is a Mixture of the following in the ratio 1:3 by volume-0 65292	Conc HNO3 and conc CHL
42	Sulphuric acid is -	Dibasic
43	Fullerene is a newly discovered crystalline carbon allotrope, contains-	60 C atoms
44	Catalytic Converters are Generally Made from -	Transition Metals
45	The First Time atomic bomb was released at-	Hiroshima
46	Hydrogen Bomb is based upon the Principle of-72	Uncontrolled Nuclear Fusion
47	Which type of reaction produces the most harmful radiation?	Fission
48	How many countries explode the atom bomb before India?	5
49	Chocolates nay Harmful to Health because they contains High quantity of -	Lead
50	Gun Powder was discovered by-	Roger beckon