Powdery materials can be guarded against caking tendency on storage
by
(A) Providing irregular grain size
(B) Providing minimum percentage of voids
(C) Having maximum possible points of contact
(D) None of these
Description : Softening temperature of coal ash is a measure of the __________ of coal. (A) Caking tendency (B) Coking tendency (C) Clinkering tendency (D) Size stability
Last Answer : (C) Clinkering tendency
Description : The weathering index of a coal (A) Gives an idea of the fusion temperature of ash (B) Is related to its calorific value (C) Is a measure of its size stability, when stored & exposed to weather (D) Is a measure of its caking tendency
Last Answer : (C) Is a measure of its size stability, when stored & exposed to weather
Description : The type of aggregates of same nominal size, which contain less voids when compacted, are (A) Rounded spherical (B) Irregular (C) Flaky (D) None of these
Last Answer : Answer: Option A
Description : The aggregates of __________________-shape have maximum voids (a) Irregular (b) Angular (c)Rounded (d) Flaky
Last Answer : (b) Angular
Description : Weathering of coal during storage causes (A) Reduction in coal size (B) Increase in its friability (C) Decrease in its caking capacity (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Pick up the correct statement from the following: (A) The earth work of cutting in trenches or borrow pits in fairly uniform ground is measured with the help of average depths of the dead men (B) ... a nor b is feasible, are measured from the fillings after deduction of voids (D) All the above
Last Answer : (D) All the above
Description : The aggregates of __________________-shape have manimum voids (a) Irregular (b) Angular (c)Rounded (d) Flaky
Last Answer : (c)Rounded
Description : Sacrificial anode method is used in the protection of pipelines which are buried underground. Sacrificial anode (A) Occurs higher in the electro-chemical series of metals (B) Is exemplified by magnesium plate (C) ... cathodic base material to be guarded against corrosion (D) All (A), (B) & (C)
Last Answer : (D) All (A), (B) & (C)
Description : ____ is an independent and self-operated vehicle which moves on defined guide ways a.Automated Guarded Vehicles b.Automated Storage and Retrieval System c.Automated Guided Vehicles d.Automated Driving Vehicles
Last Answer : c.Automated Guided Vehicles
Description : Dry powdery solid materials are transported by a __________ conveyor. (A) Belt (B) Bucket (C) Screw (D) None of these
Last Answer : (C) Screw
Description : Improper storage condition results in the weathering of coal and spontaneous combustion, which increases its (A) Caking index (B) Yield of carbonised products (C) Friability & oxygen content (D) Calorific value
Last Answer : (C) Friability & oxygen content
Description : Low temperature oxidation of coal during storage does not decrease its (A) Oxygen content (B) Caking power (C) Calorific value (D) None of these
Last Answer : (D) None of these
Description : Low temperature oxidation of coal resulting from bad storage conditions does not decrease its (A) Caking power (B) Calorific value (C) Hydrogen content (D) Oxygen content
Last Answer : (D) Oxygen content
Description : Pick up the correct statement from the following: (A) O.M.C. refers to the moisture corresponding to the maximum point on the moisture content dry density curve (B) The line which shows moisture content dry ... void line (C) The free fall of hammer for compaction is 30.5 cm (D) All the above
Description : Pick up the correct statement from the following: (A) Continuous grading is not necessary for obtaining a minimum of air voids (B) The omission of a certain size of aggregate is shown by ... in concrete increases the workability but also increases the liability to segregation (D) All the above
Last Answer : Answer: Option D
Description : Pick out the wrong statement. (A) Strongly caking coal should not be used in the Lurgi gasifier (B) Acetylene gas cannot be used for illumination purpose (C) Water gas is called blue gas ... is burnt (D) Gaseous fuels require less percentage of excess air for combustion as compared to liquid fuels
Last Answer : (B) Acetylene gas cannot be used for illumination purpose
Description : What is an internal organizational Internet that is guarded against outside access by a special security feature called a firewall (which can be software, hardware, or a combination of the two)? a. Client/server network b. Intranet c. Extranet d. Thin client
Last Answer : b. Intranet
Description : A coal having higher volatile matter content, has lower (A) Smoking tendency on burning (B) Coke oven gas yield on carbonisation (C) Chance of catching fire during storage in open space (D) Ignition temperature
Last Answer : (D) Ignition temperature
Description : For grinding of softer materials, the grinding wheel should have __________ grain size. (A) Finer (B) Coarser (C) Medium (D) Any type of
Last Answer : (B) Coarser
Description : Dislocation cross-slip is difficult in those materials, which have (A) Large number of slip systems (B) High work hardening rate (C) Coarse grain size (D) Low stacking fault energy
Last Answer : (D) Low stacking fault energy
Description : Pick out the wrong statement. (A) Indian coals on an average contain 25-30% ash as against 10-12% ash in imported coking coal (B) Ammonia is recovered in the form of ammonium sulphate in direct ... indicates poor caking properties of coal (D) Wash oil is used for scrubbing Benzol from coke oven gas
Last Answer : (C) A high swelling index number of coking coal indicates poor caking properties of coal
Description : A coal having higher volatile matter content will necessarily have lower (A) Ash fusion temperature (B) Calorific value (C) Ignition temperature (D) Caking index
Last Answer : (C) Ignition temperature
Description : What is a good size for a grain storage bin?
Last Answer : The best size for a medium storage bin is about 2 cubic meters. Bigger than this is only for very large businesses.
Description : __________ conveyor is the most suitable for long distance transportation of cold, non-abrasive granular/irregular shape/fine materials. (A) Bucket (B) Belt (C) Screw (D) Apron
Last Answer : (B) Belt
Description : Flash distillation is suitable for the separation of components (A) Having very close boiling points (B) Which form maximum boiling azeotrope (C) Having very wide boiling points (D) Which form minimum boiling azeotrope
Last Answer : (C) Having very wide boiling points
Description : Valid range for n, the percentage voids, is (A) 0 < n < 100 (B) 0 < n < 100 (C) n > 0 (D) n < 0
Last Answer : (A) 0 < n < 100
Description : The ratio of volume of voids to the total volume of soil mass is called (A) Air content (B) Porosity (C) Percentage air voids (D) Voids ratio
Last Answer : (B) Porosity
Description : The ratio of the volume of water present in a given soil mass to the total volume of its voids, is known (A) Porosity (B) Void ratio (C) Percentage voids (D) Degree of saturation
Description : Fundamental relationship between dry density ( d), specific gravity (G), water content ( ) and percentage of air voids (na) is: (A) d = (1 - na) G (1 + ) (B) d = (1 + na) G (1 + ) (C) d = (1 + na) G (1 - ) (D) d = (1 - na) G (1 - )
Description : Sensitivity of a soil can be defined as (A) Percentage of volume change of soil under saturated condition (B) Ratio of compressive strength of unconfined undisturbed soil to that of soil in a remoulded state (C) Ratio of volume of voids to volume of solids (D) None of the above
Last Answer : Answer: Option B
Description : The ratio of volume of air voids to the volume of total voids, is known as (A) Air content (B) Percentage air voids (C) Percentage voids (D) Porosity
Description : Pick up the correct statement from the following: (A) The ratio of total volume of voids in soil aggregates to the total volume of aggregate, is called Porosity (B) Water retained by the interstices ... (C) Sum of the percentage of specific yield and specific retention is 100 (D) All the above
Description : The percentage of voids in cement is approximately (A) 25 % (B) 40 % (C) 60 % (D) 80 %
Last Answer : (B) 40
Description : The ratio of volume of air voids to the volume of voids is known as a) Percentage of air voids b) Porosity c) Degree of saturation d) Air content*
Last Answer : d) Air content*
Description : The ratio of volume of water present in a given soil sample to the total volume of voids in it is known as a) Percentage of air voids b) Degree of saturation * c) Void rat
Last Answer : b) Degree of saturation *
Description : Maximum hardenability of steel depends upon its (A) Chemical composition (B) Carbon content (C) Grain size (D) Alloying elements content
Last Answer : Option D
Description : The cold rolled grain oriented steel has ______ permeability in the direction of the grain orientation. (a) minimum (b) maximum (c) nil (d) none of the above
Last Answer : (b) maximum
Description : . Platinum catalyst used in the earlier days of sulphuric acid manufacture by contact process suffers from the drawback like (A) High cost (B) Fragile nature (C) Easy poisoning tendency (D) All (A), (B) and (C)
Description : The element having maximum tendency of catenation (catenation - Self linking prop- erty)?
Last Answer : Carbon
Description : __________ conveyor is the most suitable for short distance transportation of non-abrasive loose materials like garbage, grain, food wastes etc. (A) Flight (B) Screw (C) Drag (D) Belt
Last Answer : (A) Flight
Description : Which of the following hydrocarbons of same carbon atoms has minimum smoking tendency? (A) Paraffins (B) Naphthenes (C) Aromatics (D) Iso-paraffins
Last Answer : (A) Paraffins
Description : You and your friend are trapped in a space prison on an alien planet. The alien warden decides to give you and your friend a chance at freedom. He states that your friend shall be allowed to ... A voice answers, 'The numbers are in ascending order so that the number is greater than or -Riddles
Last Answer : 2,2,9
Description : Golden treasures I contain, guarded by hundreds and thousands. Stored in a labyrinth where no man walks, yet men come often to seize my gold. By smoke I am overcome and robbed, then left to build my treasure anew.What am I? -Riddles
Last Answer : A beehive.
Description : In Greek mythology a Hamadryads spirit guarded what?
Last Answer : Trees
Description : Assertion `:` The opening between the right atrium and the right ventricle is guarded by a bicuspid or mitral valve. Reason `:` The valves in the hear
Last Answer : Assertion `:` The opening between the right atrium and the right ventricle is guarded by a bicuspid or ... . D. If both Assertion & Reason are false.
Description : The opening between the right atrium and the right ventricle is guarded by which valve ?
Last Answer : The opening between the right atrium and the right ventricle is guarded by which valve ? A. ... Bicuspid value C. Semilular valve D. Eustachian valve
Last Answer : The opening between the right atrium and the right ventricle is guarded by which valve ? A. ... Tricuspid valve C. mitral valve D. semilunar valve
Description : Mr. Prakash was candid at a history TV promotional in Mumbai recently. (1) fickle (2) forthright (3) unapologetic (4) guarded
Last Answer : (4) guarded
Description : In Greek mythology a Hamadryads spirit guarded whatÂ
Description : Which one of the following statements is correct? (A) Snow albedo falls at all wave length with the increase of grain size (B) The effect of grain size on reflection is maximum in the near-IR ... effect of grain size on reflection is low in the visible region of the spectrum (D) All of these