BE/B Eng Bachelor of Engineering Bachelor of Engineering Science 2

Question 1

Which dimensionless number represents the ratio of inertial forces to viscous forces in fluid flow?

Accepted Answer

Reynolds number

Answer

Froude number

Answer

Mach number

Answer

Euler number

Question 2

In digital logic, what is the output of a NAND gate when both inputs are HIGH?

Accepted Answer

LOW

Answer

HIGH

Answer

Undefined

Answer

Floating

Question 3

Which material property describes resistance to permanent deformation under stress?

Accepted Answer

Hardness

Answer

Toughness

Answer

Ductility

Answer

Resilience

Question 4

What is the primary purpose of a flywheel in a mechanical system?

Accepted Answer

Store rotational kinetic energy

Answer

Increase torque output

Answer

Reduce friction losses

Answer

Change gear ratios

Question 5

In thermodynamics, a Carnot cycle operating between 600 K and 300 K has a maximum theoretical efficiency of:

Accepted Answer

50%

Answer

25%

Answer

33%

Answer

75%

Question 6

Which structural analysis method satisfies both equilibrium and compatibility conditions?

Accepted Answer

Finite element method

Answer

Method of sections

Answer

Force method

Answer

Graphical statics

Question 7

In control systems, the steady-state error for a unit ramp input applied to a Type-1 system equals:

Accepted Answer

1/Kv

Answer

Zero

Answer

1/Ka

Answer

Infinity