# What is equal to

1.  Θ

2.  Sinθ

3.  0

4.  1

4

1

Explanation :
No Explanation available for this question

# Eigen values of a real symmetric matrix are always

1.  Positive

2.  Negative

3.  Real

4.  Complex

4

Real

Explanation :
No Explanation available for this question

# A  pipe  of  25mm  outer  diameter  carries  steam.  The  heat  transfer  coefficient between the cylinder and surroundings is 5W/m2K.  It is proposed to reduce the heat  loss  from  the  pipe  by  adding  insulation  having  a  thermal  conductivity  of  0.05W/mK. Which one of the following statements is TRUE

1.  The outer radius of the pipe is equal to the critical radius

2.  The outer radius of the pipe is less than the critical radius

3.  Adding the insulation will reduce the heat loss

4.  Adding the insulation will increase the heat loss

4

Adding the insulation will reduce the heat loss

Explanation :
No Explanation available for this question

# The contents of a well-insulated  tank are heated by a  resistor of 23  in which 10A  current  is  flowing.  Consider  the  tank  along  with  its  contents  as  a thermodynamic system. The work done by  the system and  the heat  transfer  to  the system are positive. The rates of heat (Q), work (W) and change in internal  energy  ( ) U ?  during the process in kW are

1.  Q =0,W =2.3, ΔU= 2.3

2.  Q= 2.3,W= 0, ΔU =-2.3

3.  Q =-2.3,W =0, ΔU =-2.3

4.  Q =0,W= 2.3, ΔU =-2.3

4

Q =0,W =2.3, ΔU= 2.3

Explanation :
No Explanation available for this question

# Match  the  following criteria of material  failure, under biaxial  stressesσ1 and σ2 and yield stress σy, with their corresponding graphic representation P.  Maximum-normal-stress criterion      L. Q. Maximum-distortion-energy criterion    M. R. Maximum-shear–stress criterion        N.

1.  P-M, Q-L, R-N

2.  P-N, Q-M, R-L

3.  P-M, Q-N, R-L

4.  P-N, Q-L,R-M

4

P-M, Q-N, R-L

Explanation :
No Explanation available for this question

# The product of two complex numbers 1+I and 2-5i is

1.  7-3i

2.  3-4i

3.  -3-4i

4.  7+3i

4

7-3i

Explanation :
No Explanation available for this question

# Cars  arrive  at  a  service  station  according  to  Poisson’s  distribution with  a mean rate  of  5  per  hour.  The  service  time  per  car  is  exponential  with  a  mean  of 10minutes. At steady state, the average waiting time in the queue is

1.  10 minutes

2.  20 minutes

3.  25 minutes

4.  50 minutes

4

50 minutes

Explanation :
No Explanation available for this question

# The word kanban is most appropriately associated with

1.  Economic order quantity

2.  Just–in–time production

3.  Capacity planning

4.  Product design

4

Just–in–time production

Explanation :
No Explanation available for this question

# If f(x) is an even function and a is a positive real number, then equals

1.  0

2.  a

3.  2a

4.

4

Explanation :
No Explanation available for this question

1.  0

2.  1

3.  2

4.  ∞

4