Forest Protection (Fire, Insects and Diseases) MCQs 2026

Forest protection in forestry mainly deals with

1. A only furniture design ✓
2. B only pulp bleaching chemistry ✓
3. C safeguarding forests from fire, pests, diseases and other damages ✓
4. D only urban traffic planning ✓

A major cause of forest fires in Pakistan's chir pine belt is

1. A excess mangrove humidity ✓
2. B dry litter, human negligence and intentional burning ✓
3. C permanent snow cover ignition ✓
4. D underwater combustion of peat only ✓

Surface fire primarily burns

1. A only the tree crowns in the canopy ✓
2. B litter, grass and undergrowth on the forest floor ✓
3. C only deep mineral soil horizons ✓
4. D only submerged mangrove roots ✓

Crown fire is especially dangerous because it

1. A spreads through tree crowns and is hard to control ✓
2. B only smolders in wet duff forever ✓
3. C never kills trees ✓
4. D requires no wind or fuel continuity ✓

A fire line (firebreak) is

1. A a row of highly flammable resin trees ✓
2. B an underground coal seam fire ✓
3. C a nursery irrigation channel only ✓
4. D a cleared strip that stops or slows fire spread ✓

Controlled (prescribed) burning is sometimes used to

1. A maximize uncontrolled wildfire ✓
2. B burn reserved forests without plan ✓
3. C reduce hazardous fuel loads under careful conditions ✓
4. D ignite crown fires in monsoon peak ✓

Early detection of forest fires is important because

1. A large fires always self-extinguish harmlessly ✓
2. B detection has no effect on damage ✓
3. C fires only start after rain ✓
4. D small fires are easier and cheaper to suppress ✓

Lookout towers and patrols help in forest fire management by

1. A increasing fuel continuity ✓
2. B hiding ignition sources ✓
3. C spotting smoke early and reporting outbreaks ✓
4. D banning all communication ✓

Chir pine (Pinus roxburghii) forests are relatively fire-prone due to

1. A high mangrove salinity ✓
2. B permanent waterlogging ✓
3. C resinous needles and dry litter accumulation ✓
4. D alpine snow insulation year-round ✓

A common insect pest of conifers discussed in forestry is

1. A only honey bees as timber borers ✓
2. B bark beetles / defoliators affecting tree health ✓
3. C only earthworms eating heartwood ✓
4. D only butterflies pollinating plywood ✓

Defoliators damage trees mainly by

1. A consuming leaves/needles and reducing photosynthesis ✓
2. B fixing nitrogen in roots ✓
3. C increasing bark thickness usefully ✓
4. D pollinating flowers only ✓

Bark beetles typically

1. A breed under bark and can kill stressed trees ✓
2. B live only in ocean plankton ✓
3. C feed exclusively on wheat grain ✓
4. D improve sap flow always ✓

Termites in forest and wood contexts are important because they

1. A fix atmospheric nitrogen in leaves ✓
2. B photosynthesize for the tree ✓
3. C pollinate deodar cones only ✓
4. D damage wood and wooden structures ✓

A fungal disease of trees often spreads via

1. A only tractor PTO shafts ✓
2. B only political boundaries ✓
3. C only railway timetables ✓
4. D spores carried by wind, rain splash or vectors ✓

Heart rot in trees refers to

1. A greening of needles in spring ✓
2. B decay of the inner wood by fungi ✓
3. C formation of root nodules ✓
4. D increase in bark chlorophyll ✓

Damping-off in forest nurseries is

1. A adult tree windthrow only ✓
2. B bark beetle outbreak in mature stands ✓
3. C crown fire in plantations ✓
4. D seedling collapse caused by soil-borne fungi ✓

Sanitation felling in forest protection means

1. A planting only exotic weeds ✓
2. B ignoring all infected trees ✓
3. C removing diseased, dead or pest-infested trees to reduce spread ✓
4. D burning the entire watershed always ✓

Quarantine measures in forestry aim to

1. A maximize unchecked imports of pests ✓
2. B ban all seed certification ✓
3. C prevent introduction and spread of dangerous pests and pathogens ✓
4. D encourage invasive species release ✓

Integrated pest management (IPM) in forests emphasizes

1. A calendar spraying only forever ✓
2. B ignoring monitoring ✓
3. C using maximum pesticide always ✓
4. D combining cultural, biological and chemical methods judiciously ✓

Biological control uses

1. A only broad-spectrum toxins daily ✓
2. B only clear-felling as pest control ✓
3. C natural enemies to suppress pest populations ✓
4. D only fire in all seasons ✓

Mistaken identity of beneficial insects as pests can lead to

1. A automatic increase in biodiversity always ✓
2. B perfect forest health guaranteed ✓
3. C zero ecological side effects ✓
4. D unnecessary spraying that worsens outbreaks ✓

Drought-stressed trees are often

1. A completely immune to all pests ✓
2. B unable to burn under any condition ✓
3. C more susceptible to insect and disease attack ✓
4. D free of all fungal spores forever ✓

Mistletoe on forest trees is generally considered

1. A a parasitic plant that can weaken hosts ✓
2. B a nitrogen-fixing root nodule ✓
3. C a mycorrhizal fungus always beneficial ✓
4. D an aquatic alga ✓

Forest pathological survey helps to

1. A assess disease incidence and guide control ✓
2. B replace all inventory of timber volume ✓
3. C ban any field observation ✓
4. D measure only rainfall ✓

Chemical pesticides in forests should be used

1. A indiscriminately on all watersheds ✓
2. B selectively, following safety and environmental guidelines ✓
3. C without any protective gear ever ✓
4. D as the only tool forever ✓

Fire triangle components are

1. A soil, fertilizer and seed only ✓
2. B fuel, heat (ignition) and oxygen ✓
3. C bark, cambium and pith only ✓
4. D rain, snow and hail only ✓

Backfiring as a suppression tactic involves

1. A pouring oil on the fire front ✓
2. B planting more resinous fuels ✓
3. C opening all firebreaks to more litter ✓
4. D burning fuel ahead of a wildfire under control to deny fuel ✓

Green belts and moist litter generally

1. A guarantee crown fire always ✓
2. B eliminate the need for any vigilance ✓
3. C ignite spontaneously every night ✓
4. D reduce fire spread compared with dry continuous fuels ✓

Illegal charcoal making and careless campfires can

1. A ignite wildfires in dry seasons ✓
2. B increase soil moisture permanently ✓
3. C prevent all surface fuels ✓
4. D replace lookout towers ✓

Pine needle litter management matters because

1. A deep dry litter is a major surface fuel ✓
2. B needles never burn ✓
3. C litter always stops fire ✓
4. D needles fix nitrogen like legumes ✓

A symptom of vascular wilt disease in trees may include

1. A increased root nodulation like pulses ✓
2. B formation of edible mushrooms only on healthy trees ✓
3. C bright green flush with no stress ✓
4. D wilting and dieback due to blocked water conduction ✓

Root rot fungi are especially damaging when

1. A they only color flowers attractively ✓
2. B they decay roots and reduce anchorage and uptake ✓
3. C they always increase timber grade ✓
4. D they live only in deserts without hosts ✓

Nursery hygiene to prevent disease includes

1. A reusing diseased soil without treatment ✓
2. B overcrowding with zero air flow ✓
3. C clean seedbeds, proper watering and sanitation ✓
4. D watering only at midnight with sewage always ✓

Outbreak of a forest pest is more likely when

1. A host trees are abundant, stressed and natural enemies are low ✓
2. B species diversity is high and trees are vigorous always ✓
3. C monitoring is continuous and action thresholds respected ✓
4. D climate is unsuitable for the pest ✓

Mechanical control of pests may include

1. A only aerial spraying of all provinces ✓
2. B removing infested material and trapping ✓
3. C only ignoring egg masses ✓
4. D only planting more host trees in outbreaks ✓

Forest fire danger rises with

1. A high temperature, low humidity, wind and dry fuels ✓
2. B heavy rain and green lush fuels ✓
3. C snow-covered continuous canopy only ✓
4. D flooded mangrove floors ✓

Post-fire salvage and regeneration planning should consider

1. A erosion risk, seed source and appropriate species ✓
2. B immediate overgrazing of all burned slopes ✓
3. C leaving all gullies untreated forever ✓
4. D planting only on vertical cliffs ✓

Insect pheromone traps are used mainly to

1. A monitor or mass-trap specific pest species ✓
2. B fertilize the soil with nitrogen ✓
3. C increase resin yield of deodar ✓
4. D replace all fire towers ✓

A healthy mixed-species stand often

1. A always burns hotter than pure pine ✓
2. B has zero ecological value ✓
3. C resists pest outbreaks better than pure monocultures ✓
4. D cannot produce any timber ✓

Fungicides in nurseries are applied to

1. A increase bark beetle populations ✓
2. B protect seedlings from fungal pathogens when needed ✓
3. C start crown fires ✓
4. D replace watering forever ✓

Grazing immediately after fire on steep slopes can

1. A always heal gullies overnight ✓
2. B worsen erosion by removing recovering cover ✓
3. C increase litter depth usefully ✓
4. D stop all sediment movement ✓

The role of forest guards in protection includes

1. A designing plywood adhesives only ✓
2. B operating only urban metro trains ✓
3. C patrolling against illicit cutting, fire and encroachment ✓
4. D issuing passports ✓

Dead and dying trees can be

1. A breeding material for bark beetles if not managed ✓
2. B always harmless forever ✓
3. C the only seed source for mangroves ✓
4. D proof that fire cannot occur ✓

Climate anomalies such as prolonged drought may

1. A eliminate all forest insects permanently ✓
2. B make fuels permanently wet ✓
3. C stop all fungal spore production ✓
4. D increase fire risk and tree stress-related pest damage ✓

Community awareness campaigns help forest protection by

1. A reducing negligent ignitions and encouraging early reporting ✓
2. B teaching people to start more fires ✓
3. C hiding fire locations ✓
4. D banning all cooperation with departments ✓

Resin tapping wounds if poorly managed can

1. A always increase tree longevity ✓
2. B sterilize the entire stand ✓
3. C predispose trees to insect and pathogen entry ✓
4. D prevent all surface fires ✓

A primary objective after detecting a pest hotspot is

1. A ignore it until the whole forest dies ✓
2. B delimit the infestation and apply appropriate control ✓
3. C spray the entire country uniformly same day ✓
4. D plant only the most susceptible clone ✓

Smoke management and safety briefings matter in prescribed fire because

1. A smoke has no health effect ✓
2. B wind never changes ✓
3. C fuel moisture is irrelevant ✓
4. D escape and smoke hazards must be controlled ✓

Forest disease management is most effective when it is

1. A only reactive clear-felling of all provinces ✓
2. B preventive and based on healthy silviculture ✓
3. C dependent solely on rumor ✓
4. D done without any diagnosis ✓

Coordination between forest, agriculture and quarantine agencies helps to

1. A guarantee pest introductions ✓
2. B limit spread of invasive pests across landscapes ✓
3. C abolish all border checks ✓
4. D replace IPM with neglect ✓