[PIPE] Question Bank for Advanced Coaching Series | Set 5 – Elements | Part 3

The minimum amount of air needed for the complete combustion of fuel is called _____.

A gas which will not be found in the flue gases produced from the complete combustion of fuel oil is _____.

The higher heating value is determined when the water in the products of combustion is in _____.

The amount of heat liberated by the complete combustion of a unit weight or volume of fuel is known as _____.

An “attemporator” is another name for _____.

What is the fundamental indicator of good combustion?

It is a solidified mass of used ash.

Why does older types of economizers were constructed invariably of cast iron?

It is an accessory often installed on modern boilers to preheat air for combustion before it enters the boiler furnace.

What components are included in the proximate analysis in solid fuel?

Which elements of fuel is not combustible?

A device or an instrument used to record the cylinder pressure of an engine and piston travel in an x-y graph, where pressure forms the vertical axis and piston tavel forms the horizontal axis.

This diagram is used by the operating engineer to detect or determine leaky piston packing, slicking piston incorrect valve timing, loose bearings, restricted and or outlet piping etc.

The effective weight of the brake arm when the brake band is loose.

The power output of the generator.

The amount of fuel needed to perform a unit of power.

The ratio of heat converted to useful power to the heat supplied.

The ratio of the actual power of the engine to its ideal power.

The ratio of the cylinder volumes after and before the combustion process.

The position of the piston when it forms the smallest volume in the cylinder.

The position of the piston when it forms the largest volume in the cylinder.

When four events take place in one revolution of a crankshaft of an engine, the engine is called _____.

What is the model cycle for spark ignition engine?

Diesel engine fuel is rated in terms of _____.

The distance that the piston can travel in one direction.

The minimum volume formed in the cylinder when the piston is at the top dead center.

It is a fictitious pressure which, if it acted on the piston during the entire power stroke, would produce the same amount of net work as that produced during the actual cycle.

The ratio of constant pressure specific to the constant volume specific heat.

The ideal cycle for the compression-ignition reciprocating engines.

The power developed in the engine cylinder as obtained from the pressure in the cylinder.

The pressure and torque spent in overcoming friction of reciprocating and revolving parts of the engine and automobile before it reached the drive shaft.

It is an instrument for determining brake power usually by the independent measurement of force, time and distance through which the force is moved.

It is the indicator used to determine the anti-knock characteristics of gasoline.

Draws fuel from the tank through the primary fuel filter. This provides flow throughout the low portion of the fuel system.

Acts as a balancer and provide momentum during dead stroke in a cycle.

Are steel tubes with seat at both ends and bridges the motion from camshaft to rocker arm.

Passage of coolant from the engine block to the cylinder head.

Are used to cool incoming air so that the volume of air available is increased.

The difference between the maximum and minimum volume.

These are used to seal the gasses within the cylinder and to keep the oil out.

Process where the heat is added in the Otto cycle.

Process where the heat is added in the Diesel cycle.

It is used to reduce the friction of bearings and sliding surfaces in machines and thus diminish the wear, heat and possibility of seizure of the parts.

In a heat engine, the ratio of break power to the indicated power is called:

The efficiency of Otto cycle depends upon the _____.

The maximum temperature of Diesel cycle will occur _____.

The ratio of the average load to the peak over a designated period of time.

The ratio of the sum of individual maximum demands of the system to the overall maximum demand of the whole system.

The sum of the continuous ratings of all the equipment and outlets on the customer’s circuit.

The ratio of the duration of the actual service of a machine or equipment to the total duration of the period of time considered.