me gate 2014 | Online Objective Test

# Fluid Mechanics and Thermal Sciences # ME GATE 2014 Prepare / Learn

Q1. Consider a single degree-of-freedom system with viscous damping excited by a harmonic force. At resonance, the phase angle (in degree) of the displacement with respect to the exciting force is

A. 0

B. 45

C. 90

D. 135

Answer : Option C
Explaination / Solution:
No Explaination.

# Materials, Manufacturing and Industrial Engineering # ME GATE 2014 Prepare / Learn

Q2. The process utilizing mainly thermal energy for removing material is

A. Ultrasonic Machining

B. Electrochemical Machining

C. Abrasive Jet Machining

D. Laser Beam Machining

Answer : Option D
Explaination / Solution:
No Explaination.

# Fluid Mechanics and Thermal Sciences # ME GATE 2014 Prepare / Learn

Q3. A mass m₁ of 100 kg travelling with a uniform velocity of 5 m/s along a line collides with a stationary mass m₂ of 1000 kg. After the collision, both the masses travel together with the same velocity. The coefficient of restitution is

A. 0.6

B. 0.1

C. 0.01

D. 0

Answer : Option D
Explaination / Solution:

# Materials, Manufacturing and Industrial Engineering # ME GATE 2014 Prepare / Learn

Q4. A minimal spanning tree in network flow models involves

A. All the nodes with cycle/loop allowed

B. All the nodes with cycle/loop not allowed

C. Shortest path between start and end nodes

D. All the nodes with directed arcs

Answer : Option B
Explaination / Solution:

A path forms a loop or cycle if it connects a node itself. A spanning tree links all the nodes of network with no loops allowed.

# Verbal Ability # ME GATE 2014 Prepare / Learn

Q5. 'Advice' is ________________.

A. a verb

B. a noun

C. an adjective

D. both a verb and a noun

Answer : Option B
Explaination / Solution:
No Explaination.

# Applied Mechanics and Design # ME GATE 2014 Prepare / Learn

Q6. Which one of following is NOT correct?

A. Intermediate principal stress is ignored when applying the maximum principal stress theory

B. The maximum shear stress theory gives the most accurate results amongst all the failure theories

C. As per the maximum strain energy theory, failure occurs when the strain energy per unit volume exceeds a critical value

D. As per the maximum distortion energy theory, failure occurs when the distortion energy per unit volume exceeds a critical value

Answer : Option B
Explaination / Solution:
No Explaination.

# Fluid Mechanics and Thermal Sciences # ME GATE 2014 Prepare / Learn

Q7. Consider a long cylindrical tube of inner and outer radii, r_i and r_o, respectively, length, L and thermal conductivity, k. Its inner and outer surfaces are maintained at T_i and T_o, respectively (Ti_i> T_o). Assuming one-dimensional steady state heat conduction in the radial direction, the thermal resistance in the wall of the tube is

Answer : Option C
Explaination / Solution:

# Materials, Manufacturing and Industrial Engineering # ME GATE 2014 Prepare / Learn

Q8. Match the casting defects (Group A) with the probable causes (Group B):

Group A Group B

(p) Hot tears 1: Improper fusion of two streams of liquid metal

(q) Shrinkage 2: Low permeability of the sand mould

(r) Blow holes 3: Volumetric contraction both in liquid and solid stage

(s) Cold Shut 4: Differential cooling rate

A. P-1, Q-3, R-2, S-4

B. P-4, Q-3, R-2, S-1

C. P-3, Q-4, R-2, S-1

D. P-1, Q-2, R-4, S-3

Answer : Option B
Explaination / Solution:
No Explaination.

# Applied Mechanics and Design # ME GATE 2014 Prepare / Learn

Q9. Gear 2 rotates at 1200 rpm in counter clockwise direction and engages with Gear 3. Gear 3 and Gear 4 are mounted on the same shaft. Gear 5 engages with Gear 4. The numbers of teeth on Gears 2, 3, 4 and 5 are 20, 40, 15 and 30, respectively. The angular speed of Gear 5 is