Test KAC 2

In a simple bending of beams the stress in the beam varies

• Linearly

• Parabolically

• Hyperbolically

High air fuel ratio in gas turbines

• increase power output

• Improves thermal efficiency

• Reduces exhaust temperature

Multi-stage Centrifugal pumps are used to:

• Give high discharge

• Produce high heads

• Pump viscous fluids

The procedure of modifying work content to give more meaning and enjoyment to the job by involving employees in planning organization and control their work is termed as

• Job enlargement

• Job enrichment

• Job rotation

In aircraft, air refrigeration cycle is used because of

• Low weight per ton of refrigeration

• High heat transfer rate

• Low temperature at high altitudes

The efficiency of a screw jack is max when?

• Alpha = 45' + Ø/2

• Alpha= 45' - Ø/2

• Alpha = 90' + ø

The specific humidity during heating and humidification process

• Constant

• Increase

• Decrease

What is the condition of the refrigerant as it leaves the evaporator of the vapor cycle cooling

• Low pressure liquid

• High pressure vapor

• Low pressure vapor

The mechanical arrangement added to the output section of an A.C generator to avail DC voltage/ Current is

• Armature

• Diode rectifier

• Split ring

In actual machines, mechanical advantage is ......velocity ration

• Less than

• Equal to

• Greater than