If 5 men or 7 women can complete a work in 20 days, 10 men and 14 women together can complete it in:

The least number which when divided by 6, 8, 12 leaves remainder 3 is:

A train crosses a man standing on the platform in 8 seconds and a 200 m long platform in 20 seconds. The length of the train is:

If 8 workers can finish a wall in 24 days, 12 workers can finish it in:

The probability of getting a sum of 7 when two dice are thrown is:

The compound interest on ₹4000 at 10% per annum for 2 years (compounded annually) is:

A person sells an article at a gain of 20%. If he had bought it 20% cheaper and sold it for ₹24 less, he would have gained 25%. The cost price is:

The next term in the series 4, 9, 19, 39, 79, ?

The angle between the hands of a clock at 7:20 is:

The resistance of a conductor is directly proportional to:

The unit of capacitance is:

Which motor is widely used in traction systems?

The form factor of a pure sine wave is:

The transformer core is laminated to reduce:

In semiconductors, majority carriers in n-type material are:

Which logic gate is called a “universal gate”?

The slip of an induction motor at synchronous speed is:

In a PN junction, the depletion layer acts as a:

The main function of a fuse is:

Which device is used for flow measurement of steam?

A pitot tube measures:

Which instrument measures torque in rotating shafts?

Thermistors are made of:

The output of an LVDT is:

In process control, “set point” means:

In strain gauges, the gauge factor typically is about:

Which effect is used in Hall effect sensors?

Accuracy of an instrument refers to:

A CRO displays the relation between:

The unit of thermal conductivity is:

The efficiency of a Carnot refrigerator depends on:

A chiller’s “tonnage” refers to:

The heat exchanger effectiveness is ratio of:

The main advantage of water-cooled chillers over air-cooled is:

Refrigerant with **zero Ozone Depletion Potential (ODP)** is:

The COP of a refrigerator is always:

In centrifugal compressors, the impeller function is to:

Which standard is most relevant for HVAC energy efficiency?

In heat exchangers, **fouling factor** represents:

The most commonly used compressor in medium-size chillers is:

Which law governs conduction of heat?

Which welding process has the highest heat flux?

The volumetric efficiency of a reciprocating compressor is affected by:

A centrifugal pump delivers maximum efficiency at:

The second law of thermodynamics introduces:

Heat transfer by radiation requires:

In HVAC duct design, pressure loss is mainly due to:

The relationship between COP of heat pump and refrigerator is:

The purpose of an economizer in chillers is: