NCL Dragline Operator PaperII – 2018
Stroke of an Engine means?
(a) Volume of Cylinder
(b) Length of connecting rod
(c) Distance between TDC and BDC
(d) Internal diameter of cylinder
Diesel engine are also known as
(a) Spark ignition (S.I) engine
(b) Compression inginition (C.I)engine
(c) Steam engine
(d) None of the above
If engine coolant leaks into engine oil, the engine oil ______
(a) Appears milky
(b) Becomes foamy
(c) Turns black
(d) None of the above
During Braking, the brake shoe is moved outward to force the lining against the
(a) Wheel piston or cylinder
(b) Anchor pin
(c) Brake drum
(d) Axle
Engine oil level should be checked _____
(a) Immediately after the ignition switch is turned off
(b) When engine is running
(c) A few minutes after the ignition switch is turned off
(d) When the engine is running at high idle
The unit of volume is ?
(a) Square meter
(b) Meter cube
(c) Second cube
(d) kilometer
What is the correct SI unit of distance is?
(a) centimeter
(b) Inch
(c) Meter
(d) Kilometer
Which of the following is machined in dry condition?
(a) Aluminium
(b) Cast Iron
(c) Titanium
(d) All of the above
One inch is equal to _____
(a) 2.5 cm
(b) 2.45 cm
(c) 2.54 cm
(d) 2.6 cm
Which of the follwing fastner is d esigned to curtail the disturbances between shaft and wheels?
(a) Key
(b) rivette
(c) Machine pin
(d) Knuckle
The property of metal because of which it can be strethched into wires is called?
(a) Toughness
(b) Ductibility
(c) Malleability
(d) Flexibility
Levelling of machines is done in accordance with ______?
(a) Gravity Center
(b) Weight
(c) Sprit level
(d) None of the above
Maintenance record includes which of following?
(a) The details of daily work
(b) date wise details of Oil change
(c) record for consumption of Oil and fuel
(d) All of the above
Washer is utilized for which of the following?
(a) For improving the grip of Nut
(b) For increasing the effective area between Nut and Part
(c) To reduce the effect of vibrations and blows on Nut
(d) All of the above
Spring washer is utilized at places ______
(a) For protecting the nuts from damages
(b) where the washer is used to damage on regular basis
(c) where there is a possibility of loosening the nuts out of vibrations
(d) where the fastening of nut is difficult
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