Engineering Questions with Answers - Multiple Choice Questions
Separation Processes MCQ’s – Equilibrium-Moisture Content of Solids
1 - Question
Calculate the initial weight of moisture if one kg block of borax laundry soap with initial moisture content of 20.2% is dried and brought to 20%.
a) 0.168
b) 0.234
c) 0.200
d) 0.300
View Answer
Answer: a
Explanation: W=100X/100+X and hence W= 0.168(1)=0.168kg.
2 - Question
Calculate the initial weight of moisture if one kg block of borax laundry soap with initial moisture content of 15 % is dried and brought to 14.8%.
a) 0.168
b) 0.130
c) 0.200
d) 0.300
View Answer
Answer: b
Explanation: W=100X/100+X and hence W= 0.130(1)=0.130kg.
3 - Question
Calculate the initial weight of moisture if one kg block of borax laundry soap with initial moisture content of 20.2% is dried and brought to 20%.
a) 0.168
b) 0.234
c) 0.156
d) 0.115
View Answer
Answer: d
Explanation: W=100X/100+X and hence W= 0.115(1)=0.15kg.
4 - Question
Calculate the initial weight of moisture if one kg block of borax laundry soap with initial moisture content of 18% is dried and brought to 17.8%.
a) 0.168
b) 0.146
c) 0.152
d) 0.234
View Answer
Answer: c
Explanation: W=100X/100+X and hence W= 0.152(1)=0.152kg.
5 - Question
Calculate the initial weight of moisture if one kg block of borax laundry soap with initial moisture content of 25% is dried and brought to 24.8%.
a) 0.16
b) 0.27
c) 0.200
d) 0.300
View Answer
Answer: c
Explanation: W=100X/100+X and hence W= 0.2(1)=0.2kg.
6 - Question
Calculate the initial weight of moisture if one kg block of borax laundry soap with initial moisture content of 20.2% is dried and brought to 20%.
a) 0.168
b) 0.234
c) 0.200
d) 0.237
View Answer
Answer: d
Explanation: W=100X/100+X and hence W= 0.237(1)=0.237kg.
7 - Question
Calculate the initial weight of moisture if one kg block of borax laundry soap with initial moisture content of 27% is dried and brought to 26.5%.
a) 0.324
b) 0.234
c) 0.225
d) 0.212
View Answer
Answer: d
Explanation: W=100X/100+X and hence W= 0.212(1)=0.212kg.
8 - Question
Calculate the initial weight of moisture if one kg block of borax laundry soap with initial moisture content of 20.2% is dried and brought to 20%.
a) 0.168
b) 0.259
c) 0.254
d) 0.257
View Answer
Answer: b
Explanation: W=100X/100+X and hence W= 0.259(1)=0.259kg.
9 - Question
Calculate the initial weight of moisture if one kg block of borax laundry soap with initial moisture content of 30% is dried and brought to 28%.
a) 0.168
b) 0.289
c) 0.276
d) 0.248
View Answer
Answer: d
Explanation: W=100X/100+X and hence W= 0.248(1)=0.248kg.
10 - Question
Calculate the initial weight of moisture if one kg block of borax laundry soap with initial moisture content of 24% is dried and brought to 20%.
a) 0.194
b) 0.236
c) 0.876
d) 0.239
View Answer
Answer: a
Explanation: W=100X/100+X and hence W= 0.194(1)=0.194kg.