ISRO Scientist or Engineer Refrigeration & Air-Conditioning 2017

The dry bulb temperature is less than wet bulb temperature

The dew point temperature is less than wet bulb temperature

The dew point and wet bulb temperatures are equal

The dry bulb and dew point temperatures are equal

Increases

decreases

remains constant

unpredictable

0.3

0.6

0.67

1.5

Decrease in fin spacing and increase in number of rows

Increase in fin spacing and increase in number of rows

Increase in fin spacing and decrease in number of rows

Decrease in fin spacing and decrease in number of rows

0%

50%

75%

100%

continuous chips

discontinuous chips

continuous chips with built up edge

chips of irregular shapes

There is continuous indexing operation

Both hob and work piece are rotating

Pressure angle is larger than in milling

A special multi-tooth cutter is used

single point cutting tool

two point cutting tool

three point cutting tool

multi-point cutting tool

Whole of the mechanism in the Ackerman steering gear is on the back of the front wheels

The Ackerman steering gear consists of sliding pairs

The Ackerman steering gear is most economical

Davis steering gear consists of turning pairs

$$2 \pi \times \sqrt{\frac{q}{I}}$$

$$2 \pi \sqrt{qI}$$

$$\frac{1}{2\pi} \times \sqrt{\frac{q}{I}}$$

$$\frac{1}{2\pi} \times \sqrt{qI}$$