Bissoy
Login
Get Advice on Live Video Call
Earn $ Cash $ with
consultations on Bissoy App
Output of a bulldozer is<br> (i) Increased if drawbar HP of the tractor is increased for a given hauling distance<br> (ii) Decreased if drawbar HP of the tractor is increased for a given hauling distance<br> (iii) Increased if the hauling distance is increased for a given drawbar HP of the tractor<br> (iv) Decreased if the hauling distance is increased for a given drawbar HP of the tractor
A
(i) and (iii) are correct
B
(i) and (iv) are correct
C
(ii) and (iii) are correct
D
(ii) and (iv) are correct
Correct Answer:
(i) and (iv) are correct
A tractor whose weight is 20 tonnes has a drawbar pull of 2500 kg, when operated on a level road having a rolling resistance of 30 kg per tonne. If this tractor is operated on a level road having a rolling resistance of 40 kg per tonne, then the drawbar pull of the tractor will
A
Reduce by 200 kg
B
Increase by 200 kg
C
Increase by 250 kg
D
Reduce by 250 kg
A wheeled tractor hauling unit is working on firm earth. The total loaded weight distribution of this unit is:
Drive wheels: 25000 kg
Scraper wheels: 10000 kg
If the coefficient of traction for wheeled tractor on firm earth is 0.5, the rimpull which this tractor can exert without slipping is
A
10000 kg
B
12500 kg
C
22500 kg
D
5000 kg
Consider the following statements for a power shovel:
(i) Output can be increased by reducing the angle of swing for a given depth of cut.
(ii) For a given angle of swing, output will be maximum at optimum depth of cut.
(iii) Output can be increased by keeping the depth of cut less than optimum depth.
(iv) Output can be increased by increasing the size of shovel.
A
(ii), (iii) and (iv) are correct
B
(i), (ii) and (iv) are correct
C
(i), (iii) and (iv) are correct
D
(i) and (iv) are correct
If a 12m high tree is being pulled by the tractor, by a rope tied over the top. With the tractor at a linear distance of 12m and 4m away perpendicularly from the tree. If the force applied by the tractor is 2KN then what is the moment caused by the roots of the tree?
A
-16.5i+7.51j KNm
B
-16.5i+5.51j KNm
C
-16.5i+5.51j KNmm
D
-16.5i+7.51j KNm
In case of CVT, if the drive pulley diameter is decreased and the driven pulley diameter is increased, output torque will be increased and output speed will be decreased.
A
True
B
False
The ratio of the speeds of a car, a jeeps and a tractor is 3 : 5 : 2. The speed of the jeep is 250 per cent of the speed of the tractor and tractor covers 360 km in 12 hours. What is the average speed of car and jeep together?
A
50 kmph
B
60 kmph
C
70 kmph
D
80 kmph
What is the drawbar power in a tractor?
A
Power measured in crankshaft
B
Power measured in drawbar
C
Power measured in the cylinder
D
Power measured in implement
The lower value of the ratio of drawbar height of length of tractor is better
A
Variation in weight transfer increased
B
Variation in weight transfer decreased
C
Risk increases while ascending a gradient
D
Variation in lateral stability is reduced
The blade angle of bulldozer is usually __________
A
60
B
90
C
15
D
45
The size of the bulldozer is indicated by the dimension of its _________
A
Site
B
Tyre
C
Engine
D
Blades