QUESTIONS CARRY TWO MARKS EACH
As show n in figure, an automobile having a mass of 900kg and the suspension spring constant of 81 × 104
N/m.If it travels at a speed of 72 km/h on a rough road with periodic waviness as shown, what will be the forcing frequency of the road on the wheel.
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Solution
QUESTIONS CARRY TWO MARKS EACH
In the diagram given, the magnitude of absolute angular velocity of link 2 is 10 rad/s while that of link 3 is 6 rad /s.What in angular velocity of link 3 relative to 2 ?
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Solution
Angular velocity of link 3 relative to 2(ω3↔2)= ω3 – ω2= 6 – 10 = – 4 rads[– ve sign shows opposite direction]
QUESTIONS CARRY TWO MARKS EACH
Consider the above network. Activity times are given in number of days. The earliest expected occurence time(TE) for event 50 will be :
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Solution
QUESTIONS CARRY TWO MARKS EACH
A 31.8 mm HSS drill is used to drill a hole in a cart iron block 100 mm thick at a cutting speed 20 m/min and feed 0.3 mm/rev. If the over travel of drill is 4mm and approach 9 mm, the time required to drill the hole is ________
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Solution
QUESTIONS CARRY TWO MARKS EACH
A dialer for washing maching forecost the demand at the rate of 600 unit per month for the next four months. The actual demand is found to be 500, 680, 800 and 900 units.The mean absolute deviation and BIAS will be ___ _____
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Solution
QUESTIONS CARRY TWO MARKS EACH
A gas is compressed in a cylinder by amovable piston to a volume one–half of its original volume. During the process 300 kJ heat left the gas and internal energy remained same. The work done on the gas will be________
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Solution
From the first law of thermodynamics :
dQ= dW+ dU
where, dQ= heat, dW= workdone, dU= internal energy
Given: dU= 0 (Internal energy remaines constant)
dQ= dW= 300 kN–m
QUESTIONS CARRY TWO MARKS EACH
The discharge over a rectangular weir of width 100 m when the head of water over the weir is 1.5m and the head due to velocity of approach is 0.02 m is given by________
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Solution
A small sphere of outer area 0.6 m2 is totally enclosed by a large cubical hail. The shape factor of hail with respect to sphere is 0.004. What is the measure of the internal side of the cubical hail ?
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Solution
A wide strip is rolled to a final thickness of 6.35 mm with the reduction of 30%. The roll radius is 50 cm and coefficient of friction is 0.2, then the angle of contact will be ________
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Solution
In the basic EOQ model, if demand is ₹ 60 per month,ordering cost is ₹ 12 per order, holding cost is ₹ 10 per unit per month, what in EOQ ?
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Solution