Mod 17 Cat b1.1 & b2

MODULE 17 – PROPERLLER  7.1 Fundamentals LEVEL 2

Question 1 BM17.1(1)L2 The factor that determines the thrust produced by a propeller is  A. Blade pitch pitch B. Anl Anle e of of att attac ac! ! ". Blad Blade e anl anle e

Question 2 BM17.1(2)L2 The anle bet#een relati$e airflo# and rotational $elocity is termed as  A. Blade anle anle B. %eli %eli& & an anle le ". Anle Anle of attac attac! !

Question ' BM17.1(')L2 The force actin on the propeller that tends to turn the blade to a finer pitch is termed as  A. "entrifual "entrifual t#istin t#istin moment B. Aerodyn Aerodynamic amic t#istin t#istin moment moment ". Thrus Thrustt bendin bendin  force force

Question  BM17.1()L2  As the for#ard for#ard $elocity $elocity of the aircraft aircraft decreases decreases the the anle of attac! of the propeller blades  A. decreases decreases B. incr increa ease ses s ". remain remains s the the same same

Question * BM17.1(*)L2 The distance that the aircraft mo$es for#ard in one re$olution of the propeller is called  A. Blade pitch B. +ffecti$e pitch ". ,eometric pitch Question BM17.1(-)L2 hich of the follo#in factors determines the thrust produced by a propeller/  A. 0ensity of air  B. olume of air  ". ressure of air Question 7 BM17.1(7)L2 The thic! rounded portion of the propeller blade near the hub that is desined to i$e strenth to the blade is called  A. blade 3oot B. blade Butt ". blade 4han! Question 5 BM17.1(5)L2  At #hat anle of attac! #ill a propeller blade possibly stall/  A. Belo# 1* derees B. Abo$e 1* derees ". Abo$e 15 derees

Question 6 BM17.1(6)L2 hich 8+ of the follo#in forces actin on the propeller blades tends to bend them for#ard/  A. Tor9ue Bendin B. Thrust Bendin ". "entrifual Question 1: BM17.1(1:)L2 hat #ill happen to the anle of attac! #hen the anle of ad$ance increases #ith increasin airspeed/  A. ;t decreases B. ;t increases ". ;t remains the same

7.2 Propeller Construction LEVEL 2

Question 1 BM17.2(1)L2 The type of propeller that has the ability to chane the pitch of its blades durin fliht and on the round is  A. do#n (and the propeller blades are in feather position)/  A. %ydraulic pump B. neumatic pump ". +lectrical pump Question  BM17.'()L2 0urin an o$er>speed condition of a double>actin propeller the o$ernor $al$e supplies oil to the front of the pitch chane cylinder for   A. increasin the blade anle in order to maintain the selected enine speed B. decreasin the blade anle in order to maintain selected enine speed ". ensurin that the blade anle remains the same so as to maintain the selected enine speed

Question * BM17.'(*)L2 To reduce the load durin start>up of turbo>prop enines #hich position of the propeller blades is selected/  A. speedin and there could be a decrease in dra and thrust

7." Propeller #$nc!ronisin% LEVEL 2

Question 1 BM17.(1)L2 ith the synchroni?er system 8 ilot ad=usts the master enine propeller 3M. The 3M of the sla$e enine #ill automatically be ad=usted to  A. the same 3M as the master enine propeller  B. a hiher 3M than the master enine propeller  ". the same anular relationship to the master blades Question 2 BM17.(2)L2 hich propeller system controls the master blades in the anular relationship that produces minimum $ibration and noise/  A. 4ynchroni?in B. 4ynchrophasin ".