Questions and answers for exam Preparation

MCQs

Total Questions : 364 | Page 25 of 37 pages

Question 241. A surface of 2.1 mm is to be measured using a interferometer. Calculate nominal fraction for blue light which has wavelength of 0.785 μm.

0.8280
0.5350
0.3185
0.1910

Discuss Question

Answer: Option C. -> 0.3185
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 242. An interferometer is used to measure a surface of 1.85 mm. Calculate number of fringes, when λ = 0.659 μm.

5614.567
5000.236
2807.283
None of the above

Discuss Question

Answer: Option A. -> 5614.567
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 243. What does effective profile mean, while defining a surface texture?

Workpiece having repetitive irregularities
Roughness can be measured in this imaginary profile
Real contour of a surface
All of the above

Discuss Question

Answer: Option C. -> Real contour of a surface
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 244. Spiral gears are used to transmit power when the shafts are

parallel
interesting
parallel and intersecting
neither parallel nor intersecting

Discuss Question

Answer: Option D. -> neither parallel nor intersecting
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 245. Why are pitch errors observed in threads?

Lack of inspection
Incorrect ratio of tool work velocity
Interference between mating parts
All of the above

Discuss Question

Answer: Option B. -> Incorrect ratio of tool work velocity
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 246. Which of the following statements is/are true?

Parkinson's gear tester is used to measure variation in centre distance
Tool maker's microscope is used to measure tooth thickness
Teeth having wider flanks have less strength
All the above statements are true

Discuss Question

Answer: Option A. -> Parkinson's gear tester is used to measure variation in centre distance
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 247. Which thread has a combined strength of square thread and V thread?

Acme thread
Knuckle thread
Buttress thread
British standard Whitworth thread

Discuss Question

Answer: Option C. -> Buttress thread
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 248. Universal measuring machine is a combination of

Tool maker's microscope and Parkinson's gear tester
Tool maker's microscope and optical measuring machine
Parkinson's gear tester and optical measuring machine
None of the above

Discuss Question

Answer: Option B. -> Tool maker's microscope and optical measuring machine
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 249. Which among the following machines can inspect geometric features of different components?

Co-ordinate measuring machines
Universal measuring machines
Both a. and b.
None of the above

Discuss Question

Answer: Option B. -> Universal measuring machines
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 250. According to ISO 8402, quality is defined as

the totality of features and characteristics of a product or service that bears on its ability to satisfy given needs
the totality of features and characteristics of a product or service that bears on its ability to satisfy stated or implied needs
the minimum loss imparted by the product to satisfy from the time the product is dispatched
none of the above

Discuss Question

Answer: Option B. -> the totality of features and characteristics of a product or service that bears on its ability to satisfy stated or implied needs
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!