Explore topic-wise MCQs in Engineering.

A sliding bearing in which the working surfaces are completely separated from each other by lubricant is called zero film bearing.

The number of rivets in shear shall be equal to the number of rivets in crushing.

Screws used for power transmission should have

When bevel gears connect two shafts whose axes intersect at an angle greater than a right angle and one of the bevel gears has a pitch angle of 90 , then they are known as

Which of the following pump is preferred for flood control and irrigation applications?

The efficiency of a Pelton wheel working under constant head __________ with the increase in power.

The discharge of a centrifugal pump working under constant head __________ with the speed.

Delivery head of water of a centrifugal pump is inversely proportional to diameter of its impeller.

In a boiler, feed water supplied per hour is 205 kg while coal fired per hour is 23 kg. The net enthalpy rise per kg of water is 145 kJ. If the calorific valve of the coal is 2050 kJ/kg, then the boiler efficiency will be

Slip of a reciprocating pump is defined as the

The efficiency of a centrifugal pump will be maximum when the blades are bent backward.

Multi-stage centrifugal pumps are used to

The specific speed of a centrifugal pump, delivering 750 litres of water per second against a head of 15 metres at 725 r.p.m., is

A single acting steam engine produces __________ power than that of double acting steam engine.

The pressure of steam in the engine cylinder at the beginning of the stroke is __________ the boiler pressure.

The function of a flywheel is

The rate of steam produced in Benson boiler is

In natural circulation steam boilers, the circulation of water is by convection currents which are set up during the heating of water.

The fire tubes in a Cochran boiler are

A double acting steam engine with a cylinder diameter of 190 mm and a stroke of 300 mm has a cut-off of 0.35. The expansion ratio for this engine is nearly

The aim of a compound steam engine is

The diameter of Cornish boiler varies from

The average operating pressure of Benson boiler is

In a reciprocating steam engine, the heat energy in the steam is converted into mechanical work by the to and fro motion of the piston.

The power of a boiler may be defined as

When the circulation of water, in a boiler, is by a centrifugal pump, then the boiler is known as

An air preheater is installed

The function of a safety valve is

The length of shell of a Locomotive boiler is

In a uniflow engine

The effect of wire drawing is to decrease the area of indicator diagram and thus work done by the engine is reduced.

The natural draught is produced by

A device used to increase the temperature of saturated steam without raising its pressure, is called

An economiser __________ the steam raising capacity of a boiler.

The diameter of flue tube in a Cornish boiler is __________ that of the shell.

A safety valve usually employed with stationary boilers is

Willian's line for the steam engine is a straight line relationship between the steam consumption per hour and

The temperature of condensate is __________ on leaving the condenser than that of circulating water at inlet.

The centre distance between two meshing involute gears is equal to

In a flange coupling, the thickness of flanges is taken as one-half the diameter of shaft.

Which of the following material has the maximum ductility?

When a bolt is subjected to shock loading, the resilience of the bolt should be considered in order to prevent breakage at the

An open belt drive is used when

In order to obtain the bolts of uniform strength, an axial hole is drilled through the head as far as the threaded portion such that the area of shank becomes equal to the root area of the thread.

In unilateral system of tolerance, the tolerance is allowed on

Stress concentration is caused due to

The constant factor in case of R10 series of preferred numbers is

The resistance to fatigue of a material is measured by

The pipe joint mostly used for pipes carrying water at low pressures is

Surface endurance limit of gear material is dependent upon its