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WorksheetsLesson 4 Quiz
Total questions: 15
Worksheet time: 8mins
The tolerance of a Dia 42 ± 0.02 mm steel shaft is
0.02 mm
0.04 mm
41.98 mm
42.01 mm
The maximum diameter of a steel shaft (mm) below is
6.960 mm
65.985 mm
66.025 mm
66.040 mm
What is the low limit of a hole of size shown below?
22.00 mm
22.05 mm
22.15 mm
22.20 mm
The purpose of using limits and fits in engineering is for
better accuracy.
easy lubrication.
achieving interchangeability.
obtaining good surface finish.
The 3 type of fits in a limits & fits system are namely clearance fit, transition fit and
Interrupted fit
Interference fit
Intermediate fit
Interchangeable fit
Running fits and sliding fits are examples of
Transition fit.
Clearance fit.
Very loose fit.
Interference fit.
In limits and fits, the fitting of a hole basis system is obtained by changing
the hole size only.
the shaft size only.
both the hole and shaft sizes.
Both the hole and shaft lengths.
In limits and fits, the fitting of a shaft basis system is obtained by changing
the hole size only.
the shaft size only.
both the hole and shaft sizes.
Both the hole and shaft lengths.
The most dangerous part of the milling machine is the
knee.
work table.
rotating cutter
rotating spindle.
To protect your eyes during the milling operation, its is most important to
use safety goggles.
use swarf (chip) guards.
stand far away from the cutter.
look away from the cutting operation.
During the milling operation, one must keep one’s hand away from the
blunt cutter.
sharp cutter.
rotating cutter.
stationary cutter.
To prevent the operator from touching the rotating cutter, milling machines are fitted with
belts.
lights.
guards.
covers.
As a safety measure, all milling machines are fitted with a/an
light.
coolant nozzle.
emergency switch.
backlash eliminator.
Identify the part indicated as ‘A’ of the vertical Milling machine.
Arbor.
Overarm/ Ram.
Main spindle.
Vertical head.
The part that houses the spindle of a vertical milling machine is the
quill.
quill house.
head casting.
spindle housing.
