Which option is correct for given statements about out of roundness of V blocks? Statement 1: Shafts can be out-of-roundness due to improper centre alignment. Statement 2: Adjustable V-Blocks can be used to show out-of-roundness.

Mr.Rohan while helping the students of Class IV in adding and subtracting fractions observed that several students are not able to complete the addition of two improper fractions. He gave a small test with questions from the addition of proper fractions (one item of addition of two similar fractions, three items from the addition of proper and improper fractions, and four items from the addition of improper fractions). He analyzed the responses of each student and found that nearly 45% of students were not clear in adding proper with improper fractions which were affecting their performance in adding two improper fractions. He, therefore, focused on developing the understanding of improper fractions and their addition with proper fractions after which he proceeded to teach the addition of two improper fractions. Which kind of assessment is depicted by this situation?

A

Assessment OF Learning

B

Assessment for Learning

C

Assessment AS Learning

D

Assessment by learning

Consider the following questions: A): Five wheel rotations on a bike takes you 12 yards. How many wheel rotations will be required to go 60 yards? B): In a college, 5 out of every 8 seniors live in apartments. Out of 30 seniors how many are likely to live in apartment? C): John and Lisa were walking at the same speed. Lisa started first. When Lisa has walked 6 blocks, john has walked 2 blocks. How many blocks would John cover when Lisa has covered 12 blocks. Choose the correct option.

A

Question (A) requires proportional thinking while (B) is an example of a question on probability.

B

Both questions (A) and (B) are an example of questions based on proportional thinking.

C

Both questions (A) and (C) are an example of questions based on proportional thinking.

D

Only question (C) is an example of question based on proportional thinking.

Hollow shafts can be made as strong as solid shafts by making the twisting moments of both the shafts same. Shafts made by __________ have residual stresses.

A

Forging

B

Cold rolling

C

Hot rolling

D

Casting

Which of the following option is correct for the given statements related to V-blocks? (T=True/ F=False) Statement 1: V-blocks can be used as a magnetic work holding device. Statement 2: V-blocks with internal magnets help in milling operation.

A

T, T

B

T, F

C

F, T

D

F, F

Which of the following option is correct for the given statements about working surface of V blocks? Statement 1: V-Blocks have only one working surface i.e. flanks of vees. Statement 2: Side faces of V-blocks are not working surfaces.

A

Both statements are true

B

Statement 1 is correct

C

Statement 2 is correct

D

Both statements are false

Which of the following option is correct for given statements about gear measurement? Statement 1: Improper alignment of each teeth will cause high bearing stresses. Statement 2: Gear blank should be tested for dimensional accuracy.

A

T, F

B

F, F

C

F, T

D

T, T

How many blocks away will Fred be from his starting p;ace if he travels two blocks north , then three blocks east, and then two blocks south?

A

Four

B

Two

C

Three

D

Zero

How many blocks away will Fred be from his starting place if he travels two blocks north, then three blocks east and then two blocks south?

A

Four

B

Two

C

Three

D

Zero

Statement I: Hooke’s joint connects two non-parallel non-intersecting shafts to transmit motion with a constant velocity ratio. Statement II: Hooke’s joint connects two shafts the axes of which do not remain in alignment while in motion.

A

Both Statement I) and Statement II) are individually true and Statement II) is the correct explanation of Statement I)

B

Both Statement I) and Statement II) are individually true but Statement II) is not the correct explanation of Statement I)

C

Statement I) is true but Statement II) is false

D

Statement I) is false but Statement II) is true

Consider the following statements pertaining to the open die forging of a cylindrical specimen between two flat dies: 1. Lubricated specimens show more surface movement than unlubricated ones. 2. Lubricated specimens show less surface movement than unlubricated ones. 3. Lubricated specimens show more barrelling than unlubricated ones. 4. Lubricated specimens show less barrelling than unlubricated ones. Which of these statements are correct?

A

1 and 3

B

1 and 4

C

2 and 3

D

2 and 4

Which option is correct for given statements about out of roundness of V blocks? Statement 1: Shafts can be out-of-roundness due to improper centre alignment. Statement 2: Adjustable V-Blocks can be used to show out-of-roundness.

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