Related Questions

Which is false statement about tempering? Tempering is done to
A Improve machinability
B Improve ductility
C Improve toughness
D Release stresses
What is the range of tempering temperature (°C) for most of the materials ?
A 75-100
B 200-300
C 350-450
D 500-600
Tempering of steel is done to make it
A Brittle
B Hard
C Rollable
D Soft
The instruction state that Sumi may need 4/9 square yards of one type of material and 2/3 square yards of another type of material for a project. She buys exactly that amount. After finishing the project, however, she has 8/18 square yards left that she did not use. What is the total amount of square yards of material Sumi used?
A 1/12
B 1/9
C 2/3
D 10/9
A,B,C,D,E,G and I are seven friends who study in three different standards namely 5th, 6th and 7th such that not less than two friends study in the same standard. Each friend also has a different favorite subject namely History, Civics, English, Bangla, Science , Maths , and Economics but not necessarily in the same order. A likes Maths and studies in the 5th standard with only one other friend who likes Bangla. I studies with tow other friends . Both the friends who study with I like languages (Here languages include only Science , English and Bangla ) . D studies in the 6th standard with only one person and does not like Civics . E studies with only one friend . The one who likes history does not study in 5th or 6th standard . E does not like languages. C does not like English , Science or Civics. Which combination represents E's favorite subject and the standard in which he studies?
A Civics and 7th
B Economics and 5th
C Civics and 6th
D History and 7th
An orthotropic material is a special class of anisotropic material, which is described by their properties in three perpendicular directions. An example of orthotropic material is
A Stainless steel
B Cast iron
C Wood
D Teflon
A highly elastic material is deformed least on loading and retains its original form on removal of the load. Which of the following is the most elastic material?
A Steel
B Glass
C Rubber
D Brass
Rittinger's number designates the new surface created per unit mechanical energy absorbed by the material being crushed. Larger value of Rittinger's number of a material indicates its
A Easier grindability
B Poor grindability
C High power consumption in grinding
D None of these
Which of the following alloying elements when added in steel does not improve its lachinability?
A Sulphur
B Phosphorous
C Copper
D Lead
Which of the following is used as a binding material in soap to improve soap texture?
A Rosin
B Borax
C Benzyl acetate
D Sodium carbonate

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