Were you a bird, you ___________ in the sky.

**A. ** would fly

**B. ** shall fly

**C. ** should fly

**D. ** shall have flown

**Answer : ****Option A**

**Explaination / Solution: **

No Explaination.

No Explaination.

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Out of all the 2-digit integers between 1 and 100, a 2-digit number has to be
selected at random. What is the probability that the selected number is not
divisible by 7?

**A. ** 13/90

**B. ** 12/90

**C. ** 78/90

**D. ** 77/90

**Answer : ****Option D**

**Explaination / Solution: **

The number of 2 digit multiples of 7 = 13

The number of 2 digit multiples of 7 = 13

Probability of choosing a number

Not divisible by 7 = (90-13)/90 = 77/90

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A cube shaped casting solidifies in 5 minutes. The solidification time in minutes for a cube of the same material, which is 8 times heavier than the original casting will be

**A. ** 10

**B. ** 20

**C. ** 24

**D. ** 40

**Answer : ****Option B**

**Explaination / Solution: **

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In orthogonal turning of a bar of 100 mm diameter with a feed of 0.25 mm/rev,
depth of cut of 4 mm and cutting velocity of 90 m/min, it is observed that the
main (tangential) cutting force is perpendicular to the friction force acting at the
chip-tool interface. The main (tangential) cutting force is 1500 N.
The normal force acting at the chip-tool interface in N is

**A. ** 1000

**B. ** 1500

**C. ** 2000

**D. ** 2500

**Answer : ****Option B**

**Explaination / Solution: **

No Explaination.

No Explaination.

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A cylinder contains 5m^{3} of ideal gas at a pressure of 1 bar. This gas is compressed in a reversible isothermal process till its pressure increases to 5 bar. The work in kJ required for this process is

**A. ** 804.7

**B. ** 953.2

**C. ** 981.7

**D. ** 1012.2

**Answer : ****Option A**

**Explaination / Solution: **

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A single degree of freedom system having mass 1 kg and stiffness 10kN/m
initially at rest is subjected to an impulse force of magnitude 5 kN for 10^{-4} seconds. The amplitude in mm of the resulting free vibration is

**A. ** 0.5

**B. ** 1.0

**C. ** 5.0

**D. ** 10.0

**Answer : ****Option C**

**Explaination / Solution: **

No Explaination.

No Explaination.

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Water (specific heat, cp = 4.18 kJ / kgK) enters a pipe at a rate of 0.01 kg/s and a temperature of 20 C° . The pipe, of diameter 50 mm and length 3m, is subjected to a wall heat flux

**A. ** 71

**B. ** 76

**C. ** 79

**D. ** 81

**Answer : ****Option D**

**Explaination / Solution: **

No Explaination.

If q''_{w} = 5000, and the convection heat transfer coefficient at the pipe outlet is 1000 W / m^{2}K, the temperature in °C at the inner surface of the pipe at the outlet

No Explaination.

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A metric thread of pitch 2mm and thread angle 60º is inspected for its pitchdiameter using 3-wire method. The diameter of the best size wire in mm is

**A. ** 0.866

**B. ** 1.000

**C. ** 1.154

**D. ** 2.000

**Answer : ****Option C**

**Explaination / Solution: **

For 60º thread angle, best wire size =0.57135xP=1.154

For 60º thread angle, best wire size =0.57135xP=1.154

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A planar closed kinematic chain is formed with rigid links PQ = 2.0m, QR = 3.0m,
RS = 2.5m and SP = 2.7m with all revolute joints. The link to be fixed to obtain a
double rocker (rocker-rocker) mechanism is

**A. ** PQ

**B. ** QR

**C. ** RS

**D. ** SP

**Answer : ****Option C**

**Explaination / Solution: **

Since for Rocker – Rocker mechanism the link opposite to smaller link must be fixed

Since for Rocker – Rocker mechanism the link opposite to smaller link must be fixed

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A simply supported beam of length L is subjected to a varying distributed load where the distance x is measured from the left support. The
magnitude of the vertical force in N at the left support is

**A. ** zero

**B. ** L/3π

**C. ** L/π

**D. ** 2L/π

**Answer : ****Option B**

**Explaination / Solution: **

Since the load is distributed equally on both supports

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