Description : Most suitable material for high pressure vessel operating at 500 atm. and 500° C is (A) Molybdenum stainless steel (B) 18/8 stainless steel (C) Mild steel (D) High silicon iron (14% Si)
Last Answer : (A) Molybdenum stainless steel
Description : Which of the following is a moderating material used in nuclear reactor? (A) Graphite (B) Cadmium (C) Zircaloy (an alloy of zirconium and aluminium)
Last Answer : (A) Graphite
Description : Moderating material used in a thermal-reactor should be a (A) Good absorber of neutrons (B) Solid substance (C) Poor absorber of neutrons (D) None of these
Last Answer : (C) Poor absorber of neutrons
Description : 18/8 steel is a/an __________ stainless steel. (A) Austenitic (B) Ferritic (C) Martensitic (D) None of these
Last Answer : (A) Austenitic
Description : 18/8 stainless steel means, that it contains (A) 18% chromium and 8% nickel (B) 18% chromium and 8% molybdenum (C) 18% nickel and 8% chromium (D) 18% molybdenum and 8% chromium
Last Answer : (A) 18% chromium and 8% nickel
Description : Pick out the wrong statement (A) Hardening makes the steel more brittle (B) High alloy steels contain more than 50% alloying element (C) 18/8 stainless steel is a magnetic steel (D) Both (B) and (C)
Last Answer : (D) Both (B) and (C)
Description : Pebble mills are tumbling mills widely used for grinding in the manufacture of paints & pigments and cosmetic industries, where iron contamination in the product is highly objectionable. Pebbles used in pebble mill are made of (A) Bronze (B) Stainless steel (C) Flint or porcelain (D) Concrete
Last Answer : (C) Flint or porcelain
Description : Soap kettle used in the production of laundry soap is made of (A) Steel with top section nickel clad or stainless steel (B) Cast iron (C) Nickel (D) Concrete
Last Answer : (A) Steel with top section nickel clad or stainless steel
Description : H2SO4 (< 50% concentration) is corrosive to (A) Aluminium, mild steel, stainless steel, concrete & tin (B) Copper, cast iron & high silicon iron (14% Si) (C) Rubber (butyl and hard), silicone rubber & Teflon (D) Glass, graphite, porcelain & stoneware
Last Answer : (A) Aluminium, mild steel, stainless steel, concrete & tin
Description : Copper is dissolved from its ore by H2SO4 in a percolation tank made of (A) Wood (B) Stainless steel (C) Reinforced concrete lined with lead (D) High silicon iron (14% Si)
Last Answer : (C) Reinforced concrete lined with lead
Description : _________ pipe is the most suitable for carrying sanitary drainage. (A) Stainless steel (B) Reinforced cement concrete (C) Cast iron (D) Asbestos cement
Last Answer : C) Cast iron
Description : _________ is the hardest material out of the following. (A) Boron carbide (B) Tungsten carbide (C) Hardened steel (D) Silicon carbide
Last Answer : (A) Boron carbide
Description : Molten sodium is used as a coolant in a fast breeder reactor, because of its (A) Excellent moderating properties (B) Neutron breeding capability (C) Faster heat removal capability from the core (D) Capability to increase the reaction rate in the core
Last Answer : (C) Faster heat removal capability from the core
Description : Which of the following is not used as a nuclear fuel cladding material? (A) Zircaloy (B) Cadmium (C) Ceramics (D) Stainless steel
Last Answer : (B) Cadmium
Description : The preferred material of construction for storage tanks for 98% sulphuric acid is (A) Aluminium (B) Lead (C) Stainless steel 316 (D) Mild steel
Last Answer : (B) Lead
Description : Which of the following would not be a suitable material of construction for handling aqueous hydrofluoric acid (HF) at 100°C? (A) Monel (B) Stainless steel (C) Graphite (D) Kel-F and Teflon
Last Answer : (B) Stainless steel
Description : A suitable material of construction to use with fuming sulphuric acid is (A) Carbon steel (B) Stainless steel type 304 (C) Nickel (D) Monel
Last Answer : (D) Monel
Description : Specify the material of construction suitable for handling concentrated HNO3 at 100°C. (A) High silicon iron, Kel-F and Teflon (B) Tin and wood (C) Silicone rubber (D) Stainless steel
Last Answer : (A) High silicon iron, Kel-F and Teflon
Description : The material of construction of pressure mills used for squeezing out the juice from sugar cane is (A) Stainless steel (B) Cast iron (C) Mild steel (D) Monel
Last Answer : (B) Cast iron
Description : For handling sulphuric acid of 95% strength, the suitable material of construction for pipes is (A) Stainless steel (B) Cast iron (C) Aluminium (D) Nickel
Description : Material of construction of pipe generally used for conveying water in India is (A) Stainless steel (B) Cast iron (C) Wrought iron (D) Lead lined steel
Description : Aqueous nitric acid is stored in __________ vessel. (A) Plain carbon steel (B) Stainless steel (C) Cast iron (D) Thermosetting plastic material
Last Answer : (C) Cast iron
Description : Which of the following material of construction may be recommended by a chemical engineer for handling a gaseous chlorine (dry or wet) stream in a fluid flow system? (A) High silicon iron, silicon rubber ... Mild steel and stainless steel (C) Cast iron, tin and aluminium (D) Copper, nickel and Monel
Last Answer : (A) High silicon iron, silicon rubber, Kel-F and Teflon
Description : Pick out the correct statement. (A) Stainless steel is nothing but chromium coated steel (B) Hardening of a soft metal can be done by alloying it with another metal or non-metal (C) ... its temporary distortion under the action of applied stress (D) Rusting of iron is not electrochemical in nature
Last Answer : (B) Hardening of a soft metal can be done by alloying it with another metal or non-metal
Description : Which of the following is the cheapest material of construction for the storage of sodium hydroxide upto a concentration of 75%? (A) Stainless steel (B) Plain carbon steel (C) Nickel (D) Copper
Last Answer : (B) Plain carbon steel
Description : Material of construction of foundry crucible is (A) Lead (B) Stainless steel (C) Graphite
Last Answer : Option C
Description : Material of construction of the electrode used in the electric resistance welding is (A) Stainless steel (B) Graphite (C) Copper (D) Steel
Description : Which of the following is the most suitable material of construction for the condenser tubes, where the cooling medium is brine (salty water)? (A) Aluminium (B) Copper (C) Titanium (D) Stainless steel
Description : __________ is used as a material of construction for the blade of power saw. (A) Wrought iron (B) Stainless steel (C) Mild steel (D) High speed steel
Last Answer : Option D
Description : In working stress method of design, the factor of safety for concrete and steel respectively are [ A ] 3.0 and 1.8 [ B ] 3.0 and 1.18 [ C ] 3.0 and 1.15 [ D ] 1.5 and 1.5
Last Answer : [ A ] 3.0 and 1.8
Description : Are you frigging kidding me by moderating a 13 year old's question about her possible pregnancy?
Last Answer : A 13 year old kid comes on here looking for help and you squash her question? You ever think she’s probably scared out of her gourd. Nice compassion.
Description : When a extraneous variable systematically varies with the independent variable and influences the dependent variable, it is called: a. Another dependent variable b. A confounding variable c. A moderating variable d. An unreliable variable
Last Answer : b. A confounding variable
Description : Various moderating variables determine whether a manager will act in an ethical or unethical manner. Which of the following individual characteristics indicates the degree to which people believe they are masters of their own fate? (a) Perception ; (b) Value ; (c) Attitude ; (d) Locus of Control
Last Answer : (d) Locus of Control
Description : The best material for the core of a transformer is – (1) stainless steel (2) mild steel (3) hard steel (4) soft iron
Last Answer : (4) soft iron Explanation: Iron has a very large magnetic response: it greatly amplifies an applied magnetic field. The transformer's ability to transfer energy depends on the strength of the magnetic ... field is amplified. The input energy can then be lower while still having the same effect.
Description : Indicate which of the following material does not retain magnetism permanently. (a) Soft iron (b) Stainless steel (e) Hardened steel (d) None of the above
Last Answer : (a) Soft iron
Description : When all other removable partial denture considerations remain unchanged; clasps constructed of which material can engage the deepest undercut: A. Chrome cobalt casts B. Nickel chrome casts C. Wrought stainless steel (0,5mm) D. Wrought gold
Last Answer : D. Wrought gold
Description : Which material is suitable for shaft material? a. High speed steel b. Stainless steel or high carbon steel c. Grey cast iron d. Steel having approx. 0.4% carbon and 0.8% manganese
Last Answer : d. Steel having approx. 0.4% carbon and 0.8% manganese
Description : The best material for the core of a transformer is (1) stainless steel (2) mild steel (3) hard steel (4) soft iron
Last Answer : soft iron
Description : Most common stainless steel type 316, which is highly resistant to corrosion contains (A) 16-13% Cr 10-14% Ni and 2-3% Mo (B) 20-22% Cr, and 8-10% Ni (C) 2-4% Cr, 22% NI and 2-4% Mo (D) None of these
Last Answer : (A) 16-13% Cr 10-14% Ni and 2-3% Mo
Description : Which of the following situations can be approximated to a steady state heat transfer system? (A) A red hot steel slab (having outside surface temperature as 1300°C) exposed to the atmospheric air at ... flowing at the rate of 6 Kg/minute through a copper pipe exposed to atmospheric air at 35°C
Last Answer : (B) 10 kg of dry saturated steam at 8 kgf/cm2 flowing through a short length of stainless steel pipe exposed to atmospheric air at 35°C
Description : Safety rods provided in nuclear reactors to guard against accidents, in case of earthquake are made of (A) High carbon steel (B) Molybdenum (C) Zircaloy (D) Boron or cadmium
Last Answer : (D) Boron or cadmium
Description : Solute atoms which cause yield point phenomenon in mild steel are/is (A) Aluminium (B) Boron (C) Carbon (D) Nitrogen
Last Answer : (C) Carbon
Description : If permissible working stresses in steel and concrete are respectively 1400 kg/cm2 and 80 kg/cm2 and modular ratio is 18, in a beam reinforced in tension side and of width 30 cm and having effective depth 46 cm, the lever arms of the section, is (A) 37 cm (B) 38 cm (C) 39 cm (D) 40 cm
Last Answer : Answer: Option D
Description : A singly reinforced concrete beam of 25 cm width and 70 cm effective depth is provided with 18.75 cm2 steel. If the modular ratio (m) is 15, the depth of the neutral axis, is (A) 20 cm (B) 25 cm (C) 30 cm (D) 35 cm
Last Answer : Answer: Option C
Description : The effective depth of a singly reinforced rectangular beam is 300mm. the section is over-reinforced and the neutral axis is 120mm below the top. If the maximum stress attained by concrete is 5N/mn2 and the modular ratio ... in the steel will (a) 130N/mm2 (b) 135N/mm2 (c) 160N/mm2 (d) 180N/mm2
Last Answer : (b) 135N/mm2
Description : In Limit state method of design, the factor of safety for concrete and steel respectively are [ A ] 3.00 and 1.80 [ B ] 1.50 and 1.18 [ C ] 1.50 and 1.15 [ D ] 1.50 and 1.50
Last Answer : [ C ] 1.50 and 1.15
Description : most suitable material of construction for a sewer to carry sewage under high pressure is (A) Asbestos cement (B) Steel (C) Cement concrete (D) Stoneware
Last Answer : Option B
Description : __________ is not used as the control rod material in a nuclear reactor. (A) Cobalt (B) Hafnium (C) Cadmium (D) Boron
Last Answer : (A) Cobalt
Description : Supporting legs of a plate and frame filter is normally made of (A) Stainless steel (B) Cast iron (C) High speed steel (D) Wooden plank
Description : Which of the following is not used as a filter medium in case of corrosive liquids? (A) Nylon (B) Glass cloth (C) Metal cloth of monel or stainless steel (D) Cotton fabric
Last Answer : (D) Cotton fabric