Brinell Hardness Number (BHN) for talc is approximately in the range
of
(A) 1-5
(B) 20-30
(C) 100-150

1 Answer

Answer :

Option B

Related questions

Description : Brinell Hardness Number (BHN) for talc is approximately in the range of (A) 1-5 (B) 20-30 (C) 100 -150 (D) 200 - 250

Last Answer : (B) 20-30

Description : A Plain Carbon Steel Has Brinell Hardness Number (bhn) Of 180. What Are The Values Of Rc, Vhn And Ultimate Strength?

Last Answer : Rc = BHN/10 = 18, VHN = BHN = 180 Ultimate strength = 3.48 × BHN MPa = 620 MPa.

Description : In case of brasses, with decreasing zinc percentage and increasing copper percentage, its __________ increases. (A) Percentage elongation (B) Brinell hardness (C) Tensile strength (D) All 'a', 'b' & 'c'

Last Answer : (A) Percentage elongation

Description : The softest material in Mho's scale (for measuring hardness) is (A) Talc (B) Gypsum (C) Rubber (D) None of these

Last Answer : (A) Talc

Description : Elastomeric bearings are made of natural or synthetic rubber of shore hardness of approximately. a) 30 to 40 b) 50 to 70* c) 40 to 50 d) 60 to 70

Last Answer : b) 50 to 70

Description : The prescribed hardness limit of potable water ranges between  (A) 50 to 75 P.P.M.  (B) 75 to 115 P.P.M.  (C) 100 to 150 P.P.M.  (D) 150 to 200 P.P.M.

Last Answer : (B) 75 to 115 P.P.M. 

Description : Fermentation of molasses to produce ethyl alcohol is done at __________ °C. (A) 20 - 30 (B) < - 5 (C) 100 - 150 (D) 250 - 300

Last Answer : (A) 20 - 30

Description : Human beings can hear the sound range between: (1) 10 to 20 decibels (2) 100 to 150 decibels (3) 50 to 60 decibels (4) None of the above

Last Answer : (4) None of the above Explanation: The most accepted sound range of human being is 0 to 120 decibels.

Description : For transmission of power over a distance of 500 km, the transmission voltage should be in the range (a) 150 to 220 kV (b) 100 to 120 kV (c) 60 to 100 kV (d) 20 to 50 kV

Last Answer : (a) 150 to 220 kV

Description : The life span of human erythrocytes is approximately (a) 90 days (b) 100 days (c) 120 days (d) 150 days

Last Answer : Ans:(d)

Description : From the point of tangency before an intersection, the route markers are fixed at a distance of (A) 15 m to 30 m (B) 20 m to 35 m (C) 40 m to 50 m (D) 100 m to 150

Last Answer : Answer: Option D

Description : Maximum change in the hardness of martensite occurs in the carbon content range of __________ percent in steel. (A) 0.01 to 0.10 (B) 0.2 to 0.4 (C) 0.5 to 0.7 (D) 0.8 to 1.0

Last Answer : (B) 0.2 to 0.4

Description : If a sudden loud noise in the range of 100-150 dB ruptured one's eardrum and caused bleeding from the ears how long would it take for hearing to return in a best case scenario?

Last Answer : An internet search was not definitive on whether or not the eardrums would rupture, but there is the possibility. If this is describing an actual situation, your time would be best spent talking to a doctor.

Description : Can a sudden loud noise in the range of 100-150 dB cause bleeding from the nose?

Last Answer : An internet search found one page that indicated a high-dB level might cause a nose bleed, but that would be unusual. If you are describing a current condition, your time would be better spent talking with a doctor.

Description : Prahar-- a Tactical Battlefield support high speed Missile based on solid propulsion has a range of (a) 10 KM (b) 50 KM (c) 100 KM (d) 150 KM

Last Answer : (d) 150 KM

Description : Dust content in raw blast furnace gas is about __________ gm/Nm3 ; hence it is cleaned to the dust level of about < 10 mg /Nm3 before use. (A) 15-30 (B) 1-2 (C) 70-100 (D) 150-200

Last Answer : (A) 15-30

Description : The range of Mho's scale of hardness is from (A) 1 to 15 (B) 1 to 8 (C) 1 to10 (D) 0 to 10

Last Answer : (C) 1 to10

Description : The range of a 100 meter high T.V. transmitter antenna is about: A. 10 km B. 20 km C. 30 km D. 50 km

Last Answer : ANSWER: C

Description : A widely used size reduction equipment for __________ is Bradford breaker. (A) Talc (B) Coal (C) Iron core (D) Wheat

Last Answer : (B) Coal

Description : 3. __________ mill is normally used for grinding of talc. (A) Tube (B) Compartment (C) Ring-roll (D) Pebble

Last Answer : (A) Tube

Description : Stamp mills are generally used for crushing (A) Iron ores (B) Gold ores (C) Talc (D) Diamond

Last Answer : (B) Gold ores

Description : Which of the following is the softest material? (A) Talc (B) Feldspar (C) Corundum (D) Calcite

Last Answer : (A) Talc

Description : To get a fine talc powder from its granules, the equipment used is (A) Roller crusher (B) Ball mill (C) Jaw crusher (D) Gyratory crusher

Last Answer : (B) Ball mill

Description : The softest material just next to talc in the Mhos scale is (A) Quartz (B) Gypsum (C) Feldspar (D) Fluorite

Last Answer : (B) Gypsum

Description : The softest material just next to talc in the Mho's scale is (A) Quartz (B) Gypsum (C) Feldspar (D) Fluorite

Last Answer : (C) Feldspar

Description : Condensation polymerisation of caprolactam is carried out in the reactor maintained at a temperature of __________ °C for producing nylon- 6. (A) -20 to 25 (B) 50 to 75 (C) 100 to 150 (D) 250-280

Last Answer : (D) 250-280

Description : A gun fires shell with a muzzle velocity of 600 m/sec. The angle of inclination of the gun so that the shell hits a target at a distance of 32 km at level 100 m higher than the gun would be approximately? a.60? b.45? c.30? d.15? e.Either of (A) and (C)

Last Answer : e. Either of (A) and (C)

Description : Calculate the value of closing stock from the following according to Weighted Average method: 1st January, 2014: Opening balance: 50 units @ Rs. 4 Receipts: 5th January, 2014: 100 units @ Rs. 5 12th January, 2014: 200 units ... 2014: 150 units (a) Rs. 765 (b) Rs. 805 (c) Rs. 786 (d) Rs. 700

Last Answer : (c) Rs. 786

Description : Calculate the value of closing stock from the following according to LIFO method: 1st January, 2014: Opening balance: 50 units @ Rs. 4 Receipts: 5th January, 2014: 100 units @ Rs. 5 12th January, 2014: 200 units @ Rs. 4.50 ... , 2014: 150 units (a) Rs. 765 (b) Rs. 805 (c) Rs. 786 (d) Rs. 700

Last Answer : (b) Rs. 805

Description : Calculate the value of closing stock from the following according to FIFO method: 1st January, 2014: Opening balance: 50 units @ Rs. 4 Receipts: 5th January, 2014: 100 units @ Rs. 5 12th January, 2014: 200 units @ Rs. 4.50 ... , 2014: 150 units (a) Rs. 765 (b) Rs. 805 (c) Rs. 786 (d) Rs. 700

Last Answer : (a) Rs. 765

Description : The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is approximately (A) 5 mm (B) 10 mm (C) 20 mm (D) 30 mm

Last Answer : Answer: Option D

Description : A four-pole induction motor, operating on three-phase 60 cycle current will operate at approximately ___________. A. 850 RPM B. 1,150 RPM C. 1,750 RPM D. 3,550 RPM

Last Answer : Answer: C

Description : If 7/8 part of a books is sold at 60% profit, 1/12 part at 32% profit and remaining part at 24% profit and finally, there is a profit of Rs.150, then find the cost price of the books approximately

Last Answer : a = 7/8 , x = 60 % , b =1/12 , y = 32 % , z = 24 % and R = Rs150 Required CP of books = (150*100)/(7/8*60+1/12*32+1/24*24) =15000/(52.5+2.66+1)  = 15000/56.16 = Rs267

Description : A 17 inch personal computer uses approximately 150 watts in an hour. If you have same computer on for only 4 minutes (for checking e-mail) what would be the power consumption?  (A) 0.1 kW (B) 0.04 kW (C) 0.01 kW (D) None of the above

Last Answer : A 17 inch personal computer uses approximately 150 watts in an hour. If you have same computer on for only 4 minutes (for checking e-mail) what would be the power consumption?  (A) 0.1 kW (B) 0.04 kW (C) 0.01 kW (D) None of the above

Description : A hardness depth of about 3 mm can be achieved by induction hardness in __________ seconds. (A) 5 (B) 100 (C) 250 (D) 500

Last Answer : (A) 5

Description : 1. Which vitamin is necessary for blood clotting? 2. Which can be abolished but not dissolved? 3. What does Talc contains? 4. What is the percentage of radiant energy reflected back by ... which countries? 20. The extent of the Delhi Sultanate empire was the greatest during which reign?

Last Answer : Answer : 1. Vitamin K 2. State Legislative Council 3. Magnesium, silicon and oxygen 4. Albedo 5. Nalanda 6. Vijay Kelkar 7. 1 percent 8. Lemurs 9. Mild rainfall 10. Mahayana sect 11. From ... 16. National income 17. Liver 18. Both Houses of Parliament 19. Sumatra and Malaysia 20. Alauddin Khilji

Description : If depth of slab is 10 cm, width of web 30 cm, depth of web 50 cm, centre to centre distance of beams 3 m, effective span of beams 6 m, the effective flange width of the beam, is (A) 200 cm (B) 300 cm (C) 150 cm (D) 100 cm

Last Answer : Answer: Option C

Description : The weight of the puddler is —— A. 150-200 kg. C. 100-150 kg B. 30-40 kg D. 200-250 kg

Last Answer : 30-40 kg

Description : Flooding nozzle have spray angle a) 100-150 b) 90-100 c) 60-95 d) 30-45

Last Answer : a) 100-150

Description : A tractor engine is operated at full load approximately a) 20-25% of the operating times b) 25-30% of the operating time c) 30-35% of the operating time d) 35-40% of operating time

Last Answer : b) 25-30% of the operating time

Description : The life span of human WBC is approximately (a) between 2 to 3 months (b) more than 4 months (c) less than 10 days (d) between 20 to 30 days.

Last Answer : (c) less than 10 days

Description : Aquaculture facilities cultivate approximately ____ different species of fish and shellfish and grow a variety of aquatic plants. a. 20 c. 10 b. 30 d. 40

Last Answer : b. 30

Description : The lower limit of moisture by sun drying is approximately ____ percent. a. 10 c. 20 b. 15 d. 30

Last Answer : b. 15

Description : At rest, the interior of the typical mammalian neuronal axon potential is approximately ________ mV (a) 0 (b) –70 (c) –100 (d) –20

Last Answer : Ans: B

Description : Approximately what is the frequency limit of the optical fiber? ∙ A. 20 MHz ∙ B. 1 MHz ∙ C. 100 MHz ∙ D. 40 GHz

Last Answer : ∙ D. 40 GHz

Description : Approximately __________ nationalities live in Australia. (A) 200 (B) 100 (C) 20 (D) 10

Last Answer : (A) 200 

Description : If all the Earth's ice melted, the increase in sea level would be approximately: w) 100 meters x) 2 meters y) 70 meters z) 20 meters

Last Answer : ANSWER: Y -- 70 METERS

Description : Why are there a wide range of colours, hardness, crystal forms, luster and density found in minerals ? -SST 10th

Last Answer : A wide range of colours, hardness, crystal forms, luster, and density is found in minerals because of the high levels of variations in physical and chemical conditions under which a mineral is formed.