Related Questions

The ability of a material to offer resistance to scratching or indentation is a measure of its
A Brittleness
B Toughness
C Hardness
D Resilience
Which of the following hardness tests uses the depth of penetration caused by the indentor as the parameter for arriving at the hardness value of a material ?
A Shore sceleroscope test
B Vicker's hardness test
C Brinell hardness test
D Rockwell hardness test
Babul attended five tests during the semester and the average of his test scores was 87. If has average score after first three tests were 85, what was the average of his 4th and 5th test?
A 88
B 89
C 90
D 93
Jamal's average score in 4 tests was 80 out of a possible 100 . If his scores in 2 of the tests were 65 and 70, what is the lowest that either of his other scores could have been ?
A 70
B 80
C 90
D 85
Rashed's average on 4 tests is 80. Assuming he can earn no more than 100 on any test, what is the least he can earn on his 5th test and still have a chance for an average of 85 after seven tests ?
A 60
B 70
C 75
D 85
Jak's average test score after 2 tests is 78. What average score must Jake score on the 3rd ,4th and 5th tests to bring his average up to exactly 87?
A 85
B 90
C 93
D 95
A student's average test score on 4 tests is 78. What must be the student's score on the 5 ^ (th) * testf the student's average score on the 5 tests to be 80?
A 80
B 82
C 84
D 88
Copper is a metal "which" is "easily" worked and which "mixes" well with "other" metals to form alloys. "No error".
A which
B mixes
C other
D No error
Identify the incorrect part of the sentence : Copper is a metal which is easily worked and which mixes well with other metals to form alloys.
A which
B easily
C mixes
D other
The forms in which various metals and non metals occur in nature are called minerals. Which of the following is not a metallic ferrous mineral?
A Cassiterite
B Sphalerite
C Chalcopyrite
D Calcite

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