Bac F1 Burkina Faso Practice Questions - Baccalauréat Série F1 (Construction Mécanique) - Burkina Faso Exam - Bac F1 Burkina Faso Practice Questions - Baccalauréat Série F1 (Construction Mécanique)

Question 1

In the ISO 286 hole-basis system of fits used in construction mécanique, which statement is correct?

The hole has a fundamental deviation of zero (H), and the shaft tolerance class is chosen to produce the required clearance or interference The shaft is always made to H7 and the hole class is varied Both hole and shaft must use the same letter so that the fit is guaranteed The hole-basis system can only produce clearance fits

Correct Answer:

The hole has a fundamental deviation of zero (H), and the shaft tolerance class is chosen to produce the required clearance or interference

Question 2

On a definition drawing the fit is written Ø25 H7/g6. What do the capital H and the lowercase g identify?

H is the shaft class and g is the hole class H and g are both IT grades H is the hole tolerance class and g is the shaft tolerance class H means interference and g means clearance

Correct Answer:

H is the hole tolerance class and g is the shaft tolerance class

Question 3

The ISO 286 pairing H7/g6 is classified as which type of fit?

Interference (press or shrink) fit Clearance (sliding) fit Transition fit Force fit that always requires heating the hole

Correct Answer:

Clearance (sliding) fit

Question 4

For a given nominal diameter, how does a change from IT7 to IT6 affect the tolerance?

The tolerance zone becomes wider, so manufacture is easier The fundamental deviation letter changes from H to h The fit type automatically becomes an interference fit The tolerance zone becomes narrower (higher precision, higher cost)

Correct Answer:

The tolerance zone becomes narrower (higher precision, higher cost)

Question 5

A hole is specified Ø25 H7. In the 18–30 mm size band, IT7 = 21 µm and H has EI = 0. What are the limit sizes of the hole?

25.000 mm to 25.021 mm 24.979 mm to 25.000 mm 24.989 mm to 25.011 mm 25.000 mm to 25.013 mm

Correct Answer:

25.000 mm to 25.021 mm

Question 1

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Prepare with the Bac F1 Burkina Faso Practice Questions - Baccalauréat Série F1 (Construction Mécanique) - Burkina Faso Exam practice quiz. This question bank includes 100 questions covering steel, diameter, hole, carbon, and shaft. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Bac F1 Burkina Faso Practice Questions - Baccalauréat Série F1 (Construction Mécanique) - Burkina Faso Exam

This practice set contains 100 questions from the matching question bank and focuses on steel, diameter, hole, carbon, and shaft. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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Bac F1 Burkina Faso Practice Questions - Baccalauréat Série F1 (Construction Mécanique) - Burkina Faso Exam

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