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ISRO ME Exam 2017: Full Syllabus Mini Mock-5
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Question 1
Vector , vector b=4i-3j+1k, angle between above vectors is
Question 2
In a Brinell hardness test, a 1500 kg load is pressed into a specimen using a 10 mm diameter hardened steel ball. The resulting indentation has a diameter = 3.2 mm. What will be the BHN for the metal?
Question 3
The lowest eigen value of the 2×2 matrix is ________
Question 4
Calculate Heat transferred if the mass of the gas is 8 kg and its temperature changes from 20 °C to 130 °C of system. The specific heat capacity of the system during a constant pressure process is given by cp = (0.4 + 0.004 T) kJ/kg °C where T is in °C
Question 5
For a system under simple harmonic motion, the acceleration is written as
where ω= Natural Frequency of vibration; x= displacement; ẋ=velocity
where ω= Natural Frequency of vibration; x= displacement; ẋ=velocity
Question 6
A 200 mm long stress free rod at room temperature is held between two immovable rigid walls. The temperature of the rod is uniformly raised by 250 °C. if the young’s modulus and coefficient of thermal expansion are 100 GPa and 2*10-5 / °C respectively the magnitude of the longitudinal stress (in MPA. developed in the rod is
Question 7
Which of the following characteristics are comes into consideration while selecting cutting fluids depending upon workpiece material _________.
Question 8
The copper fins having square cross sectional area (1mm x 1mm) of 15mm length are provided on a motor to carry 1.5 w of energy generated by this motor The temperature of the surface of casing of motor should not exceeds 1000c when surrounding temperature is 300c. Assume k(copper)=200w/m0c, h=15w/m2 0c and neglect heat loss from the tip of fin. Find the number of fins required
Question 9
An Iceberg has a specified weight of 8kN/m3 and floats in sea-water of specific weight 10.05 kN/m3. The percentage of total volume of Iceberg above the water surface will be_______.
Question 10
Rod AB weighing 200 N is supported by a cable wrapped around a semi-cylinder having coefficient of friction equal to 0.2. A weight C having a mass of 10 kg can slide on rod AB. The maximum range from the centre-line such that the centre of C can be placed without causing slippage is _____ mm.
Question 11
The value of where is the closed curve of the region bounded by and is ____.
Question 12
In cascade refrigeration system, (COP)1 = 2.3 and (COP)2 = 1.6, the overall COP of cascade refrigeration system is ___________.
Question 13
A beam with the cross-section as shown in the diagram is pointed to a load as illustrated. What should be the minimum value of e so that there will be a tensile stress on the beam?
Question 14
If a jet of water of area 3cm2 strikes with a velocity of 10m/s in a series of flat plate wheel of mean diameter 15cm rotating at 70 rpm then force exerted per unit weight per sec ( N/ N/s) )will be equal to
Question 15
The crystal structure of austenite is ________.
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ESE & GATE MEGeneralFeb 16ESE & GATE ME