City Guilds Model Questions Vol1 2021 Engineering Question 8

Practice objective / multiple choice question 8 from the 2021 City Guilds Model Questions Vol1 Engineering examination.

City Guilds Model Questions Vol1 2021 Engineering Objective / Multiple Choice Medium Difficulty
Question 8 CITY_GUILDS_MODEL_QUESTIONS_VOL1 • 2021 • ENGINEERING • objective

A mechanical drawing of a gear assembly is drawn at a scale of 1 : 25. In the drawing, the centre distance between two gears is measured as 48 mm. The pitch diameters of the gears are shown as 30 mm and 42 mm respectively, and the numbers of teeth are 20 and 28. Determine the actual centre distance (in mm), the actual pitch diameters of the two gears (in mm), and the common module of the gears (in mm).

Answer Options

A. Centre distance = 960 mm; pitch diameters = 600 mm and 840 mm; module = 30 mm
Correct Answer B. Centre distance = 1200 mm; pitch diameters = 750 mm and 1050 mm; module = 37.5 mm
C. Centre distance = 1150 mm; pitch diameters = 720 mm and 1008 mm; module = 36 mm
D. Centre distance = 1300 mm; pitch diameters = 800 mm and 1120 mm; module = 40 mm
Correct Answer
B
Correct Option:
Centre distance = 1200 mm; pitch diameters = 750 mm and 1050 mm; module = 37.5 mm

About This Question

This is City Guilds Model Questions Vol1 2021 Engineering Question 8. It is one of the objective questions from the 2021 City Guilds Model Questions Vol1 Engineering examination.

Difficulty level: Medium .

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