Forest Protection (Fire, Insects and Diseases) MCQs 2026

Forest protection in forestry mainly deals with

1. Aonly furniture design✓
2. Bonly pulp bleaching chemistry✓
3. Csafeguarding forests from fire, pests, diseases and other damages✓
4. Donly urban traffic planning✓

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

1. Aexcess mangrove humidity✓
2. Bdry litter, human negligence and intentional burning✓
3. Cpermanent snow cover ignition✓
4. Dunderwater combustion of peat only✓

Surface fire primarily burns

1. Aonly the tree crowns in the canopy✓
2. Blitter, grass and undergrowth on the forest floor✓
3. Conly deep mineral soil horizons✓
4. Donly submerged mangrove roots✓

Crown fire is especially dangerous because it

1. Aspreads through tree crowns and is hard to control✓
2. Bonly smolders in wet duff forever✓
3. Cnever kills trees✓
4. Drequires no wind or fuel continuity✓

A fire line (firebreak) is

1. Aa row of highly flammable resin trees✓
2. Ban underground coal seam fire✓
3. Ca nursery irrigation channel only✓
4. Da cleared strip that stops or slows fire spread✓

Controlled (prescribed) burning is sometimes used to

1. Amaximize uncontrolled wildfire✓
2. Bburn reserved forests without plan✓
3. Creduce hazardous fuel loads under careful conditions✓
4. Dignite crown fires in monsoon peak✓

Early detection of forest fires is important because

1. Alarge fires always self-extinguish harmlessly✓
2. Bdetection has no effect on damage✓
3. Cfires only start after rain✓
4. Dsmall fires are easier and cheaper to suppress✓

Lookout towers and patrols help in forest fire management by

1. Aincreasing fuel continuity✓
2. Bhiding ignition sources✓
3. Cspotting smoke early and reporting outbreaks✓
4. Dbanning all communication✓

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

1. Ahigh mangrove salinity✓
2. Bpermanent waterlogging✓
3. Cresinous needles and dry litter accumulation✓
4. Dalpine snow insulation year-round✓

A common insect pest of conifers discussed in forestry is

1. Aonly honey bees as timber borers✓
2. Bbark beetles / defoliators affecting tree health✓
3. Conly earthworms eating heartwood✓
4. Donly butterflies pollinating plywood✓

Defoliators damage trees mainly by

1. Aconsuming leaves/needles and reducing photosynthesis✓
2. Bfixing nitrogen in roots✓
3. Cincreasing bark thickness usefully✓
4. Dpollinating flowers only✓

Bark beetles typically

1. Abreed under bark and can kill stressed trees✓
2. Blive only in ocean plankton✓
3. Cfeed exclusively on wheat grain✓
4. Dimprove sap flow always✓

Termites in forest and wood contexts are important because they

1. Afix atmospheric nitrogen in leaves✓
2. Bphotosynthesize for the tree✓
3. Cpollinate deodar cones only✓
4. Ddamage wood and wooden structures✓

A fungal disease of trees often spreads via

1. Aonly tractor PTO shafts✓
2. Bonly political boundaries✓
3. Conly railway timetables✓
4. Dspores carried by wind, rain splash or vectors✓

Heart rot in trees refers to

1. Agreening of needles in spring✓
2. Bdecay of the inner wood by fungi✓
3. Cformation of root nodules✓
4. Dincrease in bark chlorophyll✓

Damping-off in forest nurseries is

1. Aadult tree windthrow only✓
2. Bbark beetle outbreak in mature stands✓
3. Ccrown fire in plantations✓
4. Dseedling collapse caused by soil-borne fungi✓

Sanitation felling in forest protection means

1. Aplanting only exotic weeds✓
2. Bignoring all infected trees✓
3. Cremoving diseased, dead or pest-infested trees to reduce spread✓
4. Dburning the entire watershed always✓

Quarantine measures in forestry aim to

1. Amaximize unchecked imports of pests✓
2. Bban all seed certification✓
3. Cprevent introduction and spread of dangerous pests and pathogens✓
4. Dencourage invasive species release✓

Integrated pest management (IPM) in forests emphasizes

1. Acalendar spraying only forever✓
2. Bignoring monitoring✓
3. Cusing maximum pesticide always✓
4. Dcombining cultural, biological and chemical methods judiciously✓

Biological control uses

1. Aonly broad-spectrum toxins daily✓
2. Bonly clear-felling as pest control✓
3. Cnatural enemies to suppress pest populations✓
4. Donly fire in all seasons✓

Mistaken identity of beneficial insects as pests can lead to

1. Aautomatic increase in biodiversity always✓
2. Bperfect forest health guaranteed✓
3. Czero ecological side effects✓
4. Dunnecessary spraying that worsens outbreaks✓

Drought-stressed trees are often

1. Acompletely immune to all pests✓
2. Bunable to burn under any condition✓
3. Cmore susceptible to insect and disease attack✓
4. Dfree of all fungal spores forever✓

Mistletoe on forest trees is generally considered

1. Aa parasitic plant that can weaken hosts✓
2. Ba nitrogen-fixing root nodule✓
3. Ca mycorrhizal fungus always beneficial✓
4. Dan aquatic alga✓

Forest pathological survey helps to

1. Aassess disease incidence and guide control✓
2. Breplace all inventory of timber volume✓
3. Cban any field observation✓
4. Dmeasure only rainfall✓

Chemical pesticides in forests should be used

1. Aindiscriminately on all watersheds✓
2. Bselectively, following safety and environmental guidelines✓
3. Cwithout any protective gear ever✓
4. Das the only tool forever✓

Fire triangle components are

1. Asoil, fertilizer and seed only✓
2. Bfuel, heat (ignition) and oxygen✓
3. Cbark, cambium and pith only✓
4. Drain, snow and hail only✓

Backfiring as a suppression tactic involves

1. Apouring oil on the fire front✓
2. Bplanting more resinous fuels✓
3. Copening all firebreaks to more litter✓
4. Dburning fuel ahead of a wildfire under control to deny fuel✓

Green belts and moist litter generally

1. Aguarantee crown fire always✓
2. Beliminate the need for any vigilance✓
3. Cignite spontaneously every night✓
4. Dreduce fire spread compared with dry continuous fuels✓

Illegal charcoal making and careless campfires can

1. Aignite wildfires in dry seasons✓
2. Bincrease soil moisture permanently✓
3. Cprevent all surface fuels✓
4. Dreplace lookout towers✓

Pine needle litter management matters because

1. Adeep dry litter is a major surface fuel✓
2. Bneedles never burn✓
3. Clitter always stops fire✓
4. Dneedles fix nitrogen like legumes✓

A symptom of vascular wilt disease in trees may include

1. Aincreased root nodulation like pulses✓
2. Bformation of edible mushrooms only on healthy trees✓
3. Cbright green flush with no stress✓
4. Dwilting and dieback due to blocked water conduction✓

Root rot fungi are especially damaging when

1. Athey only color flowers attractively✓
2. Bthey decay roots and reduce anchorage and uptake✓
3. Cthey always increase timber grade✓
4. Dthey live only in deserts without hosts✓

Nursery hygiene to prevent disease includes

1. Areusing diseased soil without treatment✓
2. Bovercrowding with zero air flow✓
3. Cclean seedbeds, proper watering and sanitation✓
4. Dwatering only at midnight with sewage always✓

Outbreak of a forest pest is more likely when

1. Ahost trees are abundant, stressed and natural enemies are low✓
2. Bspecies diversity is high and trees are vigorous always✓
3. Cmonitoring is continuous and action thresholds respected✓
4. Dclimate is unsuitable for the pest✓

Mechanical control of pests may include

1. Aonly aerial spraying of all provinces✓
2. Bremoving infested material and trapping✓
3. Conly ignoring egg masses✓
4. Donly planting more host trees in outbreaks✓

Forest fire danger rises with

1. Ahigh temperature, low humidity, wind and dry fuels✓
2. Bheavy rain and green lush fuels✓
3. Csnow-covered continuous canopy only✓
4. Dflooded mangrove floors✓

Post-fire salvage and regeneration planning should consider

1. Aerosion risk, seed source and appropriate species✓
2. Bimmediate overgrazing of all burned slopes✓
3. Cleaving all gullies untreated forever✓
4. Dplanting only on vertical cliffs✓

Insect pheromone traps are used mainly to

1. Amonitor or mass-trap specific pest species✓
2. Bfertilize the soil with nitrogen✓
3. Cincrease resin yield of deodar✓
4. Dreplace all fire towers✓

A healthy mixed-species stand often

1. Aalways burns hotter than pure pine✓
2. Bhas zero ecological value✓
3. Cresists pest outbreaks better than pure monocultures✓
4. Dcannot produce any timber✓

Fungicides in nurseries are applied to

1. Aincrease bark beetle populations✓
2. Bprotect seedlings from fungal pathogens when needed✓
3. Cstart crown fires✓
4. Dreplace watering forever✓

Grazing immediately after fire on steep slopes can

1. Aalways heal gullies overnight✓
2. Bworsen erosion by removing recovering cover✓
3. Cincrease litter depth usefully✓
4. Dstop all sediment movement✓

The role of forest guards in protection includes

1. Adesigning plywood adhesives only✓
2. Boperating only urban metro trains✓
3. Cpatrolling against illicit cutting, fire and encroachment✓
4. Dissuing passports✓

Dead and dying trees can be

1. Abreeding material for bark beetles if not managed✓
2. Balways harmless forever✓
3. Cthe only seed source for mangroves✓
4. Dproof that fire cannot occur✓

Climate anomalies such as prolonged drought may

1. Aeliminate all forest insects permanently✓
2. Bmake fuels permanently wet✓
3. Cstop all fungal spore production✓
4. Dincrease fire risk and tree stress-related pest damage✓

Community awareness campaigns help forest protection by

1. Areducing negligent ignitions and encouraging early reporting✓
2. Bteaching people to start more fires✓
3. Chiding fire locations✓
4. Dbanning all cooperation with departments✓

Resin tapping wounds if poorly managed can

1. Aalways increase tree longevity✓
2. Bsterilize the entire stand✓
3. Cpredispose trees to insect and pathogen entry✓
4. Dprevent all surface fires✓

A primary objective after detecting a pest hotspot is

1. Aignore it until the whole forest dies✓
2. Bdelimit the infestation and apply appropriate control✓
3. Cspray the entire country uniformly same day✓
4. Dplant only the most susceptible clone✓

Smoke management and safety briefings matter in prescribed fire because

1. Asmoke has no health effect✓
2. Bwind never changes✓
3. Cfuel moisture is irrelevant✓
4. Descape and smoke hazards must be controlled✓

Forest disease management is most effective when it is

1. Aonly reactive clear-felling of all provinces✓
2. Bpreventive and based on healthy silviculture✓
3. Cdependent solely on rumor✓
4. Ddone without any diagnosis✓

Coordination between forest, agriculture and quarantine agencies helps to

1. Aguarantee pest introductions✓
2. Blimit spread of invasive pests across landscapes✓
3. Cabolish all border checks✓
4. Dreplace IPM with neglect✓