(a) Ocean Cyclone
(b) Effect of air flow
(c) Variation in density of water
(d) Conduction of heat in water
Answer : (b) Effect of air flow
Author: Dr. Abu Bakkar Siddiq
BCS: A gun shot hits a target at 1,540 feet per second. A person hears a target 3 seconds after firing. If the speed of sound is 1,100 feet per second, what is the distance of the target in feet? [11th BCS]
(a) 1875
(b) 1975
(c) 1925
(d) 2015
Answer : (c) 1925
BCS : A left at 10 km per hour and B at 15 km per hour at the same time from the same place towards Rajshahi. A reached Rajshahi at 10.10 minutes and B at 9.40 minutes. What is the distance of Rajshahi from the place of departure in km? [11th BCS]
(a) 15
(b) 25
(c) 20
(d) 28
Answer : (a) 15
BCS : How many newtons per square cm of air pressure at sea surface? [11th BCS]
(A) 5
(b) 10
(c) 27
(d) 10
Answer : (d) 10
BCS : The main raw materials for making glass are- [11th BCS]
(a) Shajimati
(b) Limestone
(c) Gypsum
(d) Sand
Answer : (d) Sand
BCS: A cricket team is cut out twice as many as it is stamped out and half of the total wickets are bowled out. How many were cut out? [11th BCS]
(a) 2
(b) 3
(c) 4
(D) 5
Answer : (b) 3
BCS : How many degree angles are made between the hour hand and the minute hand at 2:15 minutes? [11th BCS]
(a) 20
(b) 22.5
(c) 23
(d) 23.5
Answer : (b) 22.5
BCS : Sum of 10 numbers is 462, average of first 4 is 52 and average of last 5 is 38, what is fifth number? [11th BCS]
(A) 64
(b) 60
(c) 50
(D) 62
Answer : (a) 64
BCS : 19, 33, 51, 73 What is the next number? [11th BCS]
(A) 85
(b) 98
(c) 99
(d) 121
Answer : (c) 99
BCS : Which strait separates America from Asia? [11th BCS]
(a) Bering
(b) Pak
(c) Florida
(d) Gibraltar
Answer : (a) Bering