The advantage of a constant speed propeller over a fixed pitch propeller is: a. Higher maximum thrust available b. Higher maximum efficiency c. More blade surface area available d. Nearly maximum efficiency over wide speed range

The advantage of a constant speed propeller over a fixed pitch propeller is:  
a. Higher maximum thrust available  
b. Higher maximum efficiency  
c. More blade surface area available  
d. Nearly maximum efficiency over wide speed range
by

1 Answer

Answer :

d. Nearly maximum efficiency over wide speed range
by

Related questions

Which statement best describes the operating principle of a constant-speed propeller? a. As throttle setting is changed by the pilot, the prop governor causes pitch angle of the propeller blades to remain unchanged b. The propeller control regulates the engine RPM and in turn the propeller RPM c. A high blade angle, or increased pitch, reduces the propeller drag and allows more engine power for take-offs d. As the propeller control setting is changed by the pilot, the RPM of the engines remains constant as the pitch angle of the propeller changes

Description : Which statement best describes the operating principle of a constant-speed propeller? a. As throttle setting is changed by the pilot, the prop governor causes pitch angle of the propeller blades to ... the pilot, the RPM of the engines remains constant as the pitch angle of the propeller changes

Last Answer : b. The propeller control regulates the engine RPM and in turn the propeller RPM

The angle of attack of a fixed pitch propeller: a. Depends on forward speed only b. Depends on forward speed and engine rotational speed c. Depends on engine rotational speed only d. Is constant for a fixed pitch propeller

Description : The angle of attack of a fixed pitch propeller: a. Depends on forward speed only b. Depends on forward speed and engine rotational speed c. Depends on engine rotational speed only d. Is constant for a fixed pitch propeller

Last Answer : b. Depends on forward speed and engine rotational speed

As shown in the two illustrations for 'pitch control' and engine speed control', when the plant is in 'AUTO / CRUISE' propeller pitch is controlled by ___________. EL-0095 A. the 'trim potentiometer' and speed by either 'thrust lever' B. either 'thrust lever' and speed also by the selected Lever C. the split trim potentiometer and speed by its 'trim pot'. D. either 'thrust lever' and speed by the 'trim potentiometer'

Description : As shown in the two illustrations for 'pitch control' and engine speed control', when the plant is in 'AUTO / CRUISE' propeller pitch is controlled by ___________. EL-0095 A. the 'trim potentiometer' and ... and speed by its 'trim pot'. D. either 'thrust lever' and speed by the 'trim potentiometer'

Last Answer : Answer: D

At a constant mass and altitude, a lower airspeed requires: a. More thrust and a lower coefficient of lift b. Less thrust and a lower coefficient of lift c. More thrust and a lower coefficient of drag d. A higher coefficient of lift

Description : At a constant mass and altitude, a lower airspeed requires: a. More thrust and a lower coefficient of lift b. Less thrust and a lower coefficient of lift c. More thrust and a lower coefficient of drag d. A higher coefficient of lift

Last Answer : d. A higher coefficient of lift

When does THRUST = DRAG? a. Climbing at a constant IAS b. Descending at a constant IAS c. Flying level at a constant IAS d. All of the above

Description : When does THRUST = DRAG? a. Climbing at a constant IAS b. Descending at a constant IAS c. Flying level at a constant IAS d. All of the above

Last Answer : c. Flying level at a constant IAS

Which of the following agitators having a large blade area, rotating at slow speed is used for mixing high viscosity liquids (> 50000 centipoise)? (A) Propeller(B) Helical screw(C) Flat blade turbine(D) Curved blade turbine

Description : Which of the following agitators having a large blade area, rotating at slow speed is used for mixing high viscosity liquids (> 50000 centipoise)? (A) Propeller (B) Helical screw (C) Flat blade turbine (D) Curved blade turbine

Last Answer : (B) Helical screw

To maintain altitude, what must be done as Indicated Airspeeed (IAS) is reduced? a. Decrease angle of attack to reduce the drag b. Increase angle of attack to maintain the correct lift force c. Deploy the speed brakes to increase drag d. Reduce thrust

Description : To maintain altitude, what must be done as Indicated Airspeeed (IAS) is reduced? a. Decrease angle of attack to reduce the drag b. Increase angle of attack to maintain the correct lift force c. Deploy the speed brakes to increase drag d. Reduce thrust

Last Answer : b. Increase angle of attack to maintain the correct lift force

If the angle of attack is increased beyond the critical angle of attack, the wing will no longer produce sufficient lift to support the weight of the aircraft: a. Unless the airspeed is greater than the normal stall speed b. Regardless of airspeed or pitch attitude c. Unless the pitch attitude is on or below the natural horizon d. In which case, the control column should be pulled-back immediately

Description : If the angle of attack is increased beyond the critical angle of attack, the wing will no longer produce sufficient lift to support the weight of the aircraft: a. Unless the airspeed is greater ... below the natural horizon d. In which case, the control column should be pulled-back immediately

Last Answer : b. Regardless of airspeed or pitch attitude

The stalling speed of an aeroplane is most affected by: a. Changes in air density b. Variations in aeroplane loading c. Variations in flight altitude d. Changes in pitch attitude

Description : The stalling speed of an aeroplane is most affected by: a. Changes in air density b. Variations in aeroplane loading c. Variations in flight altitude d. Changes in pitch attitude

Last Answer : b. Variations in aeroplane loading

Shortly after take-off, the altitude of the aeroplane suffers an abrupt pitch-up and IAS rapidly decreases followed quickly by a decrease in altitude. Engine indications are normal. You should suspect what and what should you do? a. Marked temperature drop; apply full power b. Loss of head wind or an increase in tail wind; apply full power c. Incipient engine failure (ignore instruments); lower the nose to gain airspeed d. Local clear air turbulence; reduce speed to VRA and ride it out

Description : Shortly after take-off, the altitude of the aeroplane suffers an abrupt pitch-up and IAS rapidly decreases followed quickly by a decrease in altitude. Engine indications are normal. You should suspect what ... to gain airspeed d. Local clear air turbulence; reduce speed to VRA and ride it out

Last Answer : b. Loss of head wind or an increase in tail wind; apply full power

What is the recommended technique to counter the loss of airspeed and resultant lift from wind shear? a. Maintain, or increase, pitch attitude and accept the lower-than-normal airspeed indications b. Lower the pitch attitude and regain lost airspeed c. Avoid overstressing aircraft, pitch to stick shaker, and apply maximum power d. Accelerate the aircraft to prevent a stall by sacrificing altitude

Description : What is the recommended technique to counter the loss of airspeed and resultant lift from wind shear? a. Maintain, or increase, pitch attitude and accept the lower-than-normal airspeed ... shaker, and apply maximum power d. Accelerate the aircraft to prevent a stall by sacrificing altitude

Last Answer : c. Avoid overstressing aircraft, pitch to stick shaker, and apply maximum power

What criteria determine which engine is the “critical” engine of a twin-engine aeroplane? a. The one with the center of thrust farthest from the centreline of the fuselage b. The one with the center of thrust closest to the centreline of the fuselage c. The one designated by the manufacturer which develops most usable thrust d. The failure of which causes the least yawing moment

Description : What criteria determine which engine is the critical engine of a twin-engine aeroplane? a. The one with the center of thrust farthest from the centreline of the fuselage b. The one ... the manufacturer which develops most usable thrust d. The failure of which causes the least yawing moment

Last Answer : b. The one with the center of thrust closest to the centreline of the fuselage

Which statement is true regarding the opposing forces acting on an aeroplane in steady-state level flight? a. Thrust is greater than drag and weight and lift are equal b. These forces are equal c. Thrust is greater than drag and lift is greater than weight d. Thrust is slightly greater than lift, but the drag and weight are equal

Description : Which statement is true regarding the opposing forces acting on an aeroplane in steady-state level flight? a. Thrust is greater than drag and weight and lift are equal b. These forces are equal ... greater than weight d. Thrust is slightly greater than lift, but the drag and weight are equal

Last Answer : b. These forces are equal

As shown in the illustration, a 'pitch cutback' feature is incorporated in the system. This circuit reduces pitch amount to prevent engine overload when it senses ____________. EL-0095 A. pitch error of any magnitude B. wrong direction of the 'pitch servo' C. excessive propeller speed or fuel to either engine D. only one engine on the line

Description : As shown in the illustration, a 'pitch cutback' feature is incorporated in the system. This circuit reduces pitch amount to prevent engine overload when it senses ____________. EL-0095 A. pitch error of ... servo' C. excessive propeller speed or fuel to either engine D. only one engine on the line

Last Answer : Answer: C

The visual and aural indications obtained when overflying an ILS middle marker are: a. Continuous low pitched dashes with synchronized blue light b. Continuous high pitched dots with synchronized amber light c. Alternating medium pitch dots and dashes with amber light d. One letter in Morse with synchronized white light

Description : The visual and aural indications obtained when overflying an ILS middle marker are: a. Continuous low pitched dashes with synchronized blue light b. Continuous high pitched dots with synchronized amber ... dots and dashes with amber light d. One letter in Morse with synchronized white light

Last Answer : c. Alternating medium pitch dots and dashes with amber light

What true airspeed and angle of attack should be used to generate the same amount of lift as altitude is increased? a. A higher true airspeed for any given angle of attack b. The same true airspeed and angle of attack c. A lower true airspeed and higher angle of attack d. A constant angle of attack and true airspeed

Description : What true airspeed and angle of attack should be used to generate the same amount of lift as altitude is increased? a. A higher true airspeed for any given angle of attack b. The same true ... c. A lower true airspeed and higher angle of attack d. A constant angle of attack and true airspeed

Last Answer : a. A higher true airspeed for any given angle of attack

If the weight of an aircraft is increased the maximum gliding range: a. Decreases b. Increases c. Remains the same, and rate of descent is unchanged d. Remains the same, but rate of descent increases

Description : If the weight of an aircraft is increased the maximum gliding range: a. Decreases b. Increases c. Remains the same, and rate of descent is unchanged d. Remains the same, but rate of descent increases

Last Answer : d. Remains the same, but rate of descent increases

The DME in an aircraft, cruising at FL210, fails to achieve a lock on a DME at MSL at a range of 210nm. The reason for this is: a. The beacon is saturated b. The aircraft is beyond the maximum usable range for DME c. The aircraft is beyond line of sight range d. The aircraft signal is too weak at the range to trigger a response

Description : The DME in an aircraft, cruising at FL210, fails to achieve a lock on a DME at MSL at a range of 210nm. The reason for this is: a. The beacon is saturated b. The aircraft is beyond ... is beyond line of sight range d. The aircraft signal is too weak at the range to trigger a response

Last Answer : c. The aircraft is beyond line of sight range

t higher elevation airports the pilot should know that indicated airspeed: a. will be unchanged but ground speed will be faster b. will be higher but ground speed will be unchanged c. should be increased to compensate for the thinner air d. should be higher to obtain a higher landing speed

Description : t higher elevation airports the pilot should know that indicated airspeed: a. will be unchanged but ground speed will be faster b. will be higher but ground speed will be unchanged c. should be increased to compensate for the thinner air d. should be higher to obtain a higher landing speed

Last Answer : a. will be unchanged but ground speed will be faster

A constant rate of climb in an aeroplane is determined by: a. Wind speed b. The aircraft weight c. Excess engine power d. Excess airspeed

Description : A constant rate of climb in an aeroplane is determined by: a. Wind speed b. The aircraft weight c. Excess engine power d. Excess airspeed

Last Answer : c. Excess engine power

As shown in the illustration, the circuit which 'shapes' the linear output of the thrust lever so that the steady-state ship speed is linear with respect to that lever's setting is the _____________. EL-0095 A. 'pitch controller' B. 'error amplifier' C. 'function generator' D. 'servo amplifier'

Description : As shown in the illustration, the circuit which 'shapes' the linear output of the thrust lever so that the steady-state ship speed is linear with respect to that lever's setting is the _____________. EL-0095 A. 'pitch controller' B. 'error amplifier' C. 'function generator' D. 'servo amplifier'

Last Answer : Answer: C

The method of alighting the aeroplane on water during a ditching is to: a. Carry out a normal approach with flaps and gear selected as normal but to calculate all speeds plus 10kts b. Reduce the approach angle to 1.5deg (150ft/mile), add 15kts to all speeds, keep the aeroplane clean (no flaps or gear) and fly it into the surface c. Fly a normal approach but keep the gear up and land at lowest possible speed with the nose raised for the tail to strike first d. Fly a normal approach to stalling speed and then drop the aeroplane vertically onto the water

Description : The method of alighting the aeroplane on water during a ditching is to: a. Carry out a normal approach with flaps and gear selected as normal but to calculate all speeds plus 10kts b. Reduce ... d. Fly a normal approach to stalling speed and then drop the aeroplane vertically onto the water

Last Answer : c. Fly a normal approach but keep the gear up and land at lowest possible speed with the nose raised for the tail to strike first

A flight is to depart from an airport with runway 09 and 27. Surface wind is 270/05; an inversion is reported at 300 feet with turbulence and wind shear. The wind just above the inversion is 090/30. What is the safest departure procedure? a. Take-off is not possible under these conditions b. Depart on runway 09 with a tailwind c. Depart runway 27 with maximum throttle during the passage through the inversion d. Depart runway 27 with as steep an ascent as possible

Description : A flight is to depart from an airport with runway 09 and 27. Surface wind is 270/05; an inversion is reported at 300 feet with turbulence and wind shear. The wind just above the ... throttle during the passage through the inversion d. Depart runway 27 with as steep an ascent as possible

Last Answer : b. Depart on runway 09 with a tailwind

The 'pitch controller module' shown in the illustration is fed the actual pitch position of the propeller from the _____________. EL-0095 A. 'pitch meter' B. 'pitch feedback potentiometer' C. #5 relay position D. pitch error signal

Description : The 'pitch controller module' shown in the illustration is fed the actual pitch position of the propeller from the _____________. EL-0095 A. 'pitch meter' B. 'pitch feedback potentiometer' C. #5 relay position D. pitch error signal

Last Answer : Answer: B

The maximum induced drag occurs at a speed of: a. VMD b. VMP c. VSO d. VATO

Description : The maximum induced drag occurs at a speed of: a. VMD b. VMP c. VSO d. VATO

Last Answer : c. VSO

Maximum endurance: a. Can be achieved in level unaccelerated flight with minimum fuel consumption b. Can be achieved by flying at the best rate of climb speed in straight and level flight c. Can be achieved in a steady climb d. Can be achieved by flying at the absolute ceiling

Description : Maximum endurance: a. Can be achieved in level unaccelerated flight with minimum fuel consumption b. Can be achieved by flying at the best rate of climb speed in straight and level flight c. Can be achieved in a steady climb d. Can be achieved by flying at the absolute ceiling

Last Answer : a. Can be achieved in level unaccelerated flight with minimum fuel consumption

The callsign of a station controlling surface vehicles in the manoeuvring area would be: a. TOWER b. CLEARANCE c. GROUND d. APRON

Description : The callsign of a station controlling surface vehicles in the manoeuvring area would be: a. TOWER b. CLEARANCE c. GROUND d. APRON

Last Answer : c. GROUND

An aircraft is flying at constant indicated altitude over a warm airmass. The altimeter reading will be: a. Correct b. Greater than the real altitude c. Less than the real altitude d. Oscillating around the correct altitude

Description : An aircraft is flying at constant indicated altitude over a warm airmass. The altimeter reading will be: a. Correct b. Greater than the real altitude c. Less than the real altitude d. Oscillating around the correct altitude

Last Answer : c. Less than the real altitude

In a variable speed induction motor derive V/f kept constant over a wide range of its frequency variation. ...

Description :  In a variable speed induction motor derive V/f kept constant over a wide range of its frequency variation. The motor operates in the following mode : -  a) Constant power mode b) Constant torque mode c) Constant slip mode d) Variable power and variable torque mode

Last Answer :  In a variable speed induction motor derive V/f kept constant over a wide range of its frequency variation. The motor operates in the following mode : - Constant torque mode

A dagger thrust at my own heart, Dictates the way I'm swayed. Left I stand, and right I yield, To the twisting of the blade. What am I? -Riddles

Description : A dagger thrust at my own heart, Dictates the way I'm swayed. Left I stand, and right I yield, To the twisting of the blade. What am I? -Riddles

Last Answer : A Lock.

An aircraft flying over the sea between 4500ft and 9000ft AMSL and outside CAS. To continue under VFR the meteorological conditions must remain: a. 2000ft horizontally and 1000ft vertically from cloud with visibility of 8km b. 1500m horizontally and 1000ft vertically from cloud with visibility of 5km c. 1500m horizontally and 1000m vertically from cloud with visibility of 5km d. Clear of cloud and in sight of the surface with visibility of 5km

Description : An aircraft flying over the sea between 4500ft and 9000ft AMSL and outside CAS. To continue under VFR the meteorological conditions must remain: a. 2000ft horizontally and 1000ft vertically from cloud with ... visibility of 5km d. Clear of cloud and in sight of the surface with visibility of 5km

Last Answer : b. 1500m horizontally and 1000ft vertically from cloud with visibility of 5km

A shuttle valve will: a. Allow the accumulator to be emptied after engine shut down b. Reduce pump loading when normal system pressure is reached c. Automatically switched to a more appropriate source of hydraulic supply d. Operate on a rising pressure, higher than the Full Flow relief valve

Description : A shuttle valve will: a. Allow the accumulator to be emptied after engine shut down b. Reduce pump loading when normal system pressure is reached c. Automatically switched to a more appropriate source of hydraulic supply d. Operate on a rising pressure, higher than the Full Flow relief valve

Last Answer : c. Automatically switched to a more appropriate source of hydraulic supply

What is the effect of deploying leading edge flaps? a. Increased minimum glide angle b. Decreased minimum glide angle c. Increased glide range d. Decreased sink rate

Description : What is the effect of deploying leading edge flaps? a. Increased minimum glide angle b. Decreased minimum glide angle c. Increased glide range d. Decreased sink rate

Last Answer : d. Decreased sink rate

Aircrafts are categorized according to their threshold speeds, multiplied by a factor. What aircraft category corresponds to a range of speeds 141kts – 165kts? a. B b. E c. D d. C

Description : Aircrafts are categorized according to their threshold speeds, multiplied by a factor. What aircraft category corresponds to a range of speeds 141kts – 165kts? a. B b. E c. D d. C

Last Answer : d. C

An aircraft has to communicate with a VHF station at a range of 300nm, if the ground station is situated 2,500ft amsl, which of the following is the lowest altitude at which contact is likely to be made? a. 190ft b. 1,378ft c. 36,100ft d. 84,100ft

Description : An aircraft has to communicate with a VHF station at a range of 300nm, if the ground station is situated 2,500ft amsl, which of the following is the lowest altitude at which contact is likely to be made? a. 190ft b. 1,378ft c. 36,100ft d. 84,100ft

Last Answer : c. 36,100ft

At a range of 200nm from a VOR, if there is an error of 1°, how far off the centreline is the aircraft? a. 3.5nm b. 1.75nm c. 7nm d. 1nm

Description : At a range of 200nm from a VOR, if there is an error of 1°, how far off the centreline is the aircraft? a. 3.5nm b. 1.75nm c. 7nm d. 1nm

Last Answer : a. 3.5nm

The DME counters are rotating continuously. This indicates that: a. The DME is unserviceable b. The DME is trying to lock onto range c. The DME is trying to lock onto frequency d. The DME is receiving no response from the ground station

Description : The DME counters are rotating continuously. This indicates that: a. The DME is unserviceable b. The DME is trying to lock onto range c. The DME is trying to lock onto frequency d. The DME is receiving no response from the ground station

Last Answer : b. The DME is trying to lock onto range

An aircraft is attempting to home to a VOR on the 064 radial. The CDI shows 4 dots fly right with a TO indication. At the same time the co-located DME shows a range of 45nm. Where is the aircraft in relation to the required track? a. 6nm right of track b. 3nm right of track c. 6nm left of track d. 3nm left of track

Description : An aircraft is attempting to home to a VOR on the 064 radial. The CDI shows 4 dots fly right with a TO indication. At the same time the co-located DME shows a range of 45nm. Where is the aircraft in relation ... right of track b. 3nm right of track c. 6nm left of track d. 3nm left of track

Last Answer : c. 6nm left of track

An aircraft heading 017° (T) has a small island showing on the AWR at 45nm range on the 60° left azimuth line. To obtain a fix from this information you should plot: a. Range 45nm and QTE 060 from the center of the island b. Range 45nm and QTE 240 from the center of the island c. Range 45nm and QTE 317 from the center of the island d. Range 45nm and QTE 137 from the center of the island

Description : An aircraft heading 017° (T) has a small island showing on the AWR at 45nm range on the 60° left azimuth line. To obtain a fix from this information you should plot: a. Range 45nm and QTE 060 from ... QTE 317 from the center of the island d. Range 45nm and QTE 137 from the center of the island

Last Answer : d. Range 45nm and QTE 137 from the center of the island

The range indicated by DME is considered to be accurate within: a. 3% of range b. 1.25% of range c. 0.5nm d. ±0.25nm ±1.25% of range

Description : The range indicated by DME is considered to be accurate within: a. 3% of range b. 1.25% of range c. 0.5nm d. ±0.25nm ±1.25% of range

Last Answer : d. ±0.25nm ±1.25% of range

How do misty/foggy conditions affect the pilot’s judgment on the approach? a. Underestimating range due to illusionary effect through the cockpit glass b. Underestimating range due to the lights appearing dim c. Overestimating range due to illusionary effect through the cockpit glass d. Overestimating range due to the lights appearing dim

Description : How do misty/foggy conditions affect the pilot's judgment on the approach? a. Underestimating range due to illusionary effect through the cockpit glass b. Underestimating range due to the ... to illusionary effect through the cockpit glass d. Overestimating range due to the lights appearing dim

Last Answer : d. Overestimating range due to the lights appearing dim

The full range of VHF frequencies used for communications is: a. 3 to 30 MHz b. 88 to 108 MHz c. 108.0 to 139.95 MHz d. 118.0 to 136.975 MHz

Description : The full range of VHF frequencies used for communications is: a. 3 to 30 MHz b. 88 to 108 MHz c. 108.0 to 139.95 MHz d. 118.0 to 136.975 MHz

Last Answer : d. 118.0 to 136.975 MHz

In what range is GPWS operative? a. 2450 – 0 ft b. 3000 – 50 ft c. 2450 – 50 ft d. 3000 – 0 ft

Description : In what range is GPWS operative? a. 2450 – 0 ft b. 3000 – 50 ft c. 2450 – 50 ft d. 3000 – 0 ft

Last Answer : c. 2450 – 50 ft

ATC will only report wind as gusting if: a. Gust speed exceeds mean speed by >15kts b. Gusts to over 25kts c. Gusts exceed mean speed by 10kts d. Gusts to under 25kts

Description : ATC will only report wind as gusting if: a. Gust speed exceeds mean speed by >15kts b. Gusts to over 25kts c. Gusts exceed mean speed by 10kts d. Gusts to under 25kts

Last Answer : c. Gusts exceed mean speed by 10kts

Maximum Differential pressure: a. Is the maximum authorized pressure difference between the inside of the fuselage and the atmospheric ambient pressure b. Is the absolute pressure provided by the vacuum pump c. Is the pressure loss over a given time limit d. Is the absolute pressure the cabin pressure ducting is designed to carry

Description : Maximum Differential pressure: a. Is the maximum authorized pressure difference between the inside of the fuselage and the atmospheric ambient pressure b. Is the absolute pressure provided by the ... time limit d. Is the absolute pressure the cabin pressure ducting is designed to carry

Last Answer : a. Is the maximum authorized pressure difference between the inside of the fuselage and the atmospheric ambient pressure

What flight condition should be expected when an aircraft leaves ground effect? a. A decrease in parasite drag permitting a lower angle of attack b. An increase induced drag and a requirement for a higher angle of attack c. An increase in dynamic stability d. A decrease in induced drag requiring a smaller angle of attack

Description : What flight condition should be expected when an aircraft leaves ground effect? a. A decrease in parasite drag permitting a lower angle of attack b. An increase induced drag and a requirement ... increase in dynamic stability d. A decrease in induced drag requiring a smaller angle of attack

Last Answer : b. An increase induced drag and a requirement for a higher angle of attack

Lowering the flaps during a landing approach: a. Increases the angle of descent without increasing the airspeed b. Decreases the angle of descent without increasing power c. Eliminates floating d. Permits approaches at a higher indicated airspeed

Description : Lowering the flaps during a landing approach: a. Increases the angle of descent without increasing the airspeed b. Decreases the angle of descent without increasing power c. Eliminates floating d. Permits approaches at a higher indicated airspeed

Last Answer : a. Increases the angle of descent without increasing the airspeed