1) The curved end of a crowbar is used as
first-class lever
second-class lever
third-class lever
None of the above
Correct answer
first-class lever
2) Crowbars are also known as
press bars
wedge bars
pry bars
split bars
3) Why do masons prefer to use plumb bob with nylon string?
It is cheap
It is more accurate
It can stand dampness
It is easy to carry
4) Which one of the following is not a basic component of wire rope?
Wires
Strands
Core
Base
5) Preventive maintenance is
the overall lubrication and repair work carried out by the maintenance section in advance of the machine coming to breakdown.
the maintenance work for any fault noticed during working.
done to prevent the maintenance of machines.
none of the above
6) Leveling bolts are used for
supporting the load for machine
adjusting the height of the machine
rigidity of machine
none of the above
7) Which one of the following tests are carried out after overhauling and reconditioning of machines?
Periodic acceptance test
Geometrical test only
Performance test only
None of the above
8) The permissible deviation for leveling of machine is
0.03 / lOO mm
0.03 / 200 mm
0.03 / 300 mm
0.03 / 400 mm
9) Which one of the following is used for checking run out of the internal taper of machine spindle?
Dial test indicator
Test mandrel and dial test indicator
Precision height gauge
Test mandrel and precision height gauge
10) The sensitivity of precision spirit level is
0.02 to O.05 / l00 mm
0.02 to 0.05 / 200 mm
0.02 to 0.05 / 500 mm
0.02 to 0.05 / 1000 mm
11) A concrete mixture ratio is given as 1: 2: 4. Which one of the following indicates the numbers?
One part cement, two parts sand, and four parts stone
One part stone, two parts cement, and four parts sand
One part sand, two parts stone, and four parts cement
One part cement, two parts stone, and four parts sand
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