Chapter 5 · MCQ Read Mode

Farm Power Machine and Machinery

Which of the following farm power sources typically has the lowest sustained power output per unit?

Farm power availability, expressed in kW/ha, is commonly used as an indicator of:

A breast/collar harness is generally preferred over a withers/neck yoke for:

The safe sustained draft force for a draft animal is commonly limited to about:

The angle of pull in an animal harness should ideally be:

Compared to animal power, mechanical power (IC engine-based) sources generally offer:

Electrical power as a farm power source is best suited to:

A key design consideration for sizing an animal harness (yoke/collar) is:

Renewable energy sources (solar, wind, biogas) for farm power are especially valuable in:

The choice of farm power source for a given operation depends primarily on:

The compression ratio of an IC engine is defined as the ratio of:

A key advantage of a two-stroke engine over a four-stroke engine is:

In a diesel engine, ignition of the fuel-air charge occurs by:

Mechanical efficiency of an engine is defined as the ratio of:

Volumetric efficiency of an engine indicates:

The function of a governor in an engine's governing system is to:

In an engine's heat balance, the heat supplied by the fuel is distributed among:

A petrol (spark-ignition) engine's ignition system typically includes:

Small engines commonly used for farm operations (power tillers, pumpsets) are typically:

A common cause of an engine 'losing power' during operation is:

Farm mechanization strategy in Nepal has generally emphasized:

A mouldboard (MB) plough is primarily valued for:

A disc plough is generally preferred over a mouldboard plough in:

A chisel plough is primarily used for:

The draft power requirement of a tillage implement generally increases with:

The 'draft force' acting on a tillage implement refers to:

A rotavator (rotary tillage tool) offers the advantage of:

Seed drills, compared to broadcasting, primarily improve:

Precision planters (e.g. for maize) rely on which mechanism to achieve accurate seed spacing?

A duster differs from a sprayer in that a duster:

A combine harvester is distinguished from a simple reaper by:

An axial-flow threshing cylinder, compared to a spike-tooth cylinder, generally provides:

Excessive grain cracking/damage during threshing is most likely caused by:

Incomplete threshing (unthreshed grain remaining in the straw) is most likely caused by:

A chaff cutter is primarily used to:

A silage cutter (forage harvester) is used to:

The break-even area between owning farm machinery versus custom-hiring it is found by comparing: performed

Excessive grain loss during combine operation, with correctly set cylinder speed/clearance, most likely indicates:

Selection of an appropriate harvesting machine for a farm depends primarily on:

A reaper's windrowing attachment serves to:

A power tiller, compared to a four-wheel farm tractor, is particularly suited to:

The function of the clutch in a tractor's transmission is to:

The differential in a tractor's drivetrain allows:

The power take-off (PTO) on a tractor is used to:

The three-point linkage/hydraulic system on a tractor primarily serves to:

Selection of an appropriate tractor/power tiller for a farm depends primarily on: affordability

Expenditure per hour to run a tractor is estimated by combining:

The final drive in a tractor's transmission provides:

Routine maintenance of a tractor typically includes:

An independent PTO design allows the PTO to:

The engineering design process for a machine component typically begins with:

'Fatigue' in machine design refers to: strength

Factor of safety (FoS) is calculated as:

A higher factor of safety is generally warranted for components subject to:

The maximum shear stress theory (Tresca) of failure is most appropriate for:

Among common failure theories for ductile materials, which is generally considered the most accurate?

The reliability of a machine element is defined as: conditions

Gear tooth design commonly uses the Lewis equation to check:

The power transmission capacity of a belt drive depends on:

A key connecting a shaft to a gear/pulley hub is primarily designed to withstand: